Trust me, I’ve navigated the confusing world of small engine parts many times myself. Finding a reliable Bpr6es spark plug equivalent can feel like a daunting task, I know. I’ve spent countless hours in the garage, wrench in hand, swapping out plugs in everything from my trusted Honda lawnmower to that temperamental generator that always gives me grief. I want to guide you through the choices, saving you time and frustration today by sharing my genuine, hard-earned insights. My passion lies in getting these machines running perfectly, and a high-quality spark plug is absolutely fundamental to that success.
1. New NGK Standard Spark Plug BPR6ES, 7131 Set of 4
Ah, the classic! When I grab a set of these, I feel an immediate sense of confidence in my project. There’s a reason NGK is so often the OEM choice – they’ve built a reputation for bulletproof reliability and consistent performance that few can match. It’s like having a trusted old friend in your toolkit, always there to get the job done right, whether it’s for a quick tune-up or a deep engine overhaul.
Key Features:
– OEM Specification: This means it’s often the exact plug your engine was designed to run on, ensuring optimal compatibility and performance right out of the box.
– Durable Construction: Built with high-quality materials, these plugs resist wear and tear, meaning fewer replacements and more consistent ignition over time.
– Optimized Heat Range: The “6” in BPR6ES indicates a balanced heat range, preventing both overheating and fouling, which is crucial for efficient combustion.
– Copper Core Electrode: Copper is an excellent conductor, providing strong spark and reliable ignition even under varying engine conditions, translating to smoother starts.
– Resistor Type (R): This feature helps suppress electrical interference that can affect sensitive electronic components in modern small engines, keeping your other systems happy.
Performance & Real-World Use
I’ve put these BPR6ES plugs through their paces in various small engines, and they always deliver. From the first pull on a cold morning to sustained use under heavy load, the engines fired up with authority and ran smoothly. I noticed a crispness in throttle response and a steady idle that speaks volumes about consistent ignition. They rarely foul, even in engines that might be a bit rich on the fuel side.
Pros:
– Unquestionable Reliability: These plugs just work, consistently and without fuss, reducing the headache of troubleshooting ignition issues.
– Broad Compatibility: They fit a vast range of equipment, making them a go-to choice for many different machines in my workshop.
– Consistent Spark: The copper core ensures a robust and reliable spark, which is critical for efficient fuel combustion and engine health.
– Excellent Longevity: I’ve found them to hold up well over extended periods, providing many hours of trouble-free operation before needing replacement.
Cons:
– Price Point: Being a premium OEM brand, they tend to be a bit more expensive than some generic alternatives, especially when buying in bulk.
– Standard Technology: While highly reliable, they don’t incorporate advanced materials like iridium or platinum for extended life (though often not needed for small engines).
– Packaging Can Vary: Sometimes, when ordering “sets,” they arrive as individual plugs, which is a minor annoyance if you prefer a single box.
Who Should Buy This:
If you prioritize tried-and-true reliability, consistent performance, and peace of mind for your valuable small engines, these are your plugs. Ideal for anyone maintaining a fleet of equipment, from professional landscapers to dedicated DIY enthusiasts who demand the best for their machines.
My Verdict:
These NGK BPR6ES plugs are the gold standard for a reason. They consistently deliver reliable starts and smooth running in every application I’ve used them in. For me, they’re the benchmark against which all others are judged, providing that satisfying sense of knowing your engine is getting top-tier ignition. A solid 9.5/10 – they just rarely disappoint.
2. NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk
You know, sometimes you just need a couple of good, solid spark plugs without buying a whole box of four. This two-pack of BDPR6ES plugs fills that niche perfectly. It’s an NGK, so right away I trust the quality, but the “D” in the model number caught my eye. This signifies a slightly different reach or electrode configuration, often indicating a fit for specific engine designs where the standard BPR6ES might not be optimal. It’s a subtle but important distinction for those particular applications.
Key Features:
– Genuine OEM NGK: This assures you’re getting the same trusted quality and engineering as the standard BPR6ES, tailored for specific engines.
– Specific Fitment (BDPR6ES): The “D” in the part number indicates a slightly longer reach or different electrode tip, designed for engines that require this precise dimension for optimal spark and combustion.
– Reliable Copper Core: Just like its BPR6ES sibling, this plug features a robust copper core for excellent heat dissipation and a strong, consistent spark.
– Resistor Type (R): Helps prevent radio frequency interference, crucial for engines with sensitive electronic components or when using power tools nearby.
– Convenient 2-Pack: Ideal for users who only need one or two plugs at a time, reducing waste and often offering better value than buying singles.
Performance & Real-World Use
I specifically used these BDPR6ES plugs in an older Honda engine that was known to be finicky with spark plug types. The slight design difference clearly paid off; it started up with a satisfying roar and settled into a remarkably stable idle. The engine ran noticeably smoother than with a standard BPR6ES I had tried previously, confirming that sometimes the “D” makes all the difference for precise engine requirements.
Pros:
– Tailored Performance: The BDPR6ES specific design can truly optimize performance for engines requiring that particular specification, leading to smoother operation.
– Trusted Brand Quality: You get the peace of mind that comes with NGK’s reputation for engineering and manufacturing excellence.
– Cost-Effective for Smaller Needs: Buying in a two-pack is perfect for single engine tune-ups or as spares, avoiding the commitment of a larger set.
– Excellent Durability: Despite the subtle difference, the core NGK quality ensures these plugs are built to last and maintain consistent performance.
Cons:
– Niche Application: The “D” in BDPR6ES means it’s not a direct, universal replacement for every BPR6ES application; careful verification is needed.
– Availability: Sometimes harder to find than the more common BPR6ES, which can be frustrating if you need them quickly.
– Still a Premium Price: While a two-pack is convenient, the individual plug price remains on the higher end due to the NGK branding.
Who Should Buy This:
This is for the meticulous mechanic or enthusiast who has confirmed their engine specifically calls for a BDPR6ES or has found that a standard BPR6ES doesn’t quite hit the mark. It’s also great for those who prefer to buy in smaller quantities, maintaining genuine NGK quality.
My Verdict:
The BDPR6ES is a testament to NGK’s commitment to precision. When an engine truly needs this specific variant, it performs beautifully, delivering reliable starts and smooth running. It’s not a universal substitute, but for its intended applications, it’s a stellar performer. I rate it an 8.8/10, acknowledging its specific but excellent utility.
3. BPR6ES Spark Plug for NGK BPR6ES BP6ES Honda GX 4-Pack
Now we’re talking about value! This 4-pack of BPR6ES equivalents immediately catches my attention for its stated compatibility with a huge range of Honda GX engines. While it explicitly says it’s not an original NGK product, the claim of meeting OEM specifications for reliable performance is a bold one, and one I was eager to put to the test. For those of us with multiple Honda engines around the yard, a cost-effective bulk pack is always appealing, but only if it performs!
Key Features:
– Broad Compatibility: Designed to replace a wide array of OEM plugs, including NGK, Torch, Champion, and Honda-branded, making it a versatile choice for many engines.
– OEM Spec Adherence: Claims to meet original equipment manufacturer specifications, suggesting it should perform comparably to genuine parts in terms of heat range and spark.
– Cost-Effective 4-Pack: Provides excellent value when you need multiple plugs, which is often the case for small engine maintenance or keeping spares.
– Extensive Engine Fitment: Specifically lists compatibility with popular Honda GX series engines, assuring users of its intended application and proper fit.
– Alternative to Premium Brands: Offers a more budget-friendly option for routine maintenance without the higher price tag of genuine NGK.
Performance & Real-World Use
I installed these in a couple of my Honda GX-powered machines – a pressure washer and a log splitter – which are both workhorses. Initial starts were good, no hesitation, and the engines idled without complaint. Under load, they performed adequately. I didn’t experience any misfires or significant power loss, though I also didn’t feel the same crisp, immediate response I’d sometimes get from a fresh NGK. They did the job, but perhaps without the same finesse.
Pros:
– Exceptional Value: Getting four plugs for the price makes this an incredibly attractive option for budget-conscious owners or those with multiple machines.
– Wide Replacement Range: It truly replaces a plethora of common spark plug numbers, simplifying inventory if you maintain diverse equipment.
– Reliable Starts: Consistently provided clean and quick starts in the engines I tested them in, which is crucial for getting work done efficiently.
– Good General Performance: For everyday use and light-to-moderate duty, these plugs perform admirably and keep engines running smoothly.
Cons:
– Not Genuine NGK: While it claims OEM spec, it lacks the explicit branding and consistent manufacturing quality control reputation of the original.
– Potential for Subtle Differences: I sometimes felt a very slight difference in engine smoothness or high-RPM performance compared to the genuine article.
– Long-Term Durability Question: While they performed well initially, the long-term durability and resistance to fouling might not match NGK over hundreds of hours.
Who Should Buy This:
If you’re looking for an extremely cost-effective solution for routine maintenance, especially for multiple Honda GX engines, and you’re comfortable with a non-branded equivalent that meets performance expectations, this 4-pack is a solid choice. Great for home users or small workshops where budget is a primary concern.
My Verdict:
This BPR6ES equivalent offers fantastic value and generally good performance. It’s a pragmatic choice for keeping your Honda GX engines running without breaking the bank. While it might not have the NGK logo, it certainly gets the job done for most everyday tasks. I’d give it a very respectable 8.0/10 for its combination of price and reliable, if not spectacular, performance.
4. Yistiun BPR6ES Spark Plug for NGK 7131 Compatible With
This Yistiun spark plug steps into the arena with an even broader list of cross-references and engine compatibility than the previous option, aiming to be the one-stop shop for BPR6ES equivalents. It boldly lists compatibility with NGK, Torch, Champion, Honda, MTD, and Bosch, essentially saying, “If it takes a BPR6ES, I’m your plug!” My curiosity was piqued by such a universal claim, especially with the detailed advice on verifying OEM part numbers. This indicates they understand the nuances of fitment, which is a good sign for a generic brand.
Key Features:
– Extensive Cross-Reference List: Compatible with a massive range of OEM and aftermarket spark plugs, making identification easier for users.
– Universal Engine Compatibility Claims: Designed to work across a vast spectrum of small engines, including popular Honda GX models, lawnmowers, and generators.
– Value-Oriented Pricing: Positioned as an affordable alternative to premium brands, offering significant savings for maintenance.
– Emphasis on Verification: The detailed instructions on checking OEM part numbers highlight a commitment to proper fitment, which is crucial for equivalents.
– Direct Replacement for Common Plugs: Aims to be a direct fit and functional equivalent for the widely used BPR6ES and its variations across many brands.
Performance & Real-World Use
I decided to test this one in an older generator that sometimes struggles with colder starts. Installation was straightforward, and the engine fired up after a few pulls, which is typical for this particular machine. It ran consistently under load during a simulated power outage, powering some essential appliances. I noticed a decent, stable idle and no noticeable misfires. It performed exactly as expected from a generic, neither excelling nor disappointing, just reliably delivering spark.
Pros:
– Highly Versatile: Its broad compatibility makes it incredibly convenient for mechanics who service a variety of small engines and need a single SKU to stock.
– Budget-Friendly: Offers a very competitive price point, allowing for frequent replacements without breaking the bank, ideal for high-usage scenarios.
– Satisfactory Performance: Delivers a consistent spark for reliable starts and steady engine operation in most common applications.
– Clear Compatibility Information: The emphasis on verifying OEM numbers is a thoughtful touch, helping users ensure correct fitment.
Cons:
– Generic Branding: Lacks the established reputation and perceived quality of a known brand like NGK, which might deter some users.
– Consistency Can Vary: With generic brands, there can sometimes be minor variations in manufacturing quality between batches, though I didn’t experience any.
– No Performance Boost: Don’t expect any “performance upgrade” over an OEM plug; it’s designed to meet, not exceed, standard specifications.
Who Should Buy This:
This spark plug is perfect for the highly practical, budget-conscious individual or small repair shop that services a wide range of equipment. If you need a reliable, no-frills, multi-compatible equivalent that gets the job done without fuss and at an attractive price, Yistiun is a strong contender.
My Verdict:
The Yistiun BPR6ES equivalent is a testament to functional efficiency at a great price. It doesn’t dazzle, but it consistently gets engines running and keeps them there. For general maintenance and broad applicability, it’s a solid choice that proves you don’t always need premium branding for reliable performance. I’d rate it a strong 7.8/10 for its commendable balance of cost and utility.
5. Honda 2 Pack Genuine 98079-56846 Spark Plug NGK BPR6ES
Okay, this one is special. When you see “Genuine Honda Part” and “NGK BPR6ES” on the same package, you know you’re getting something truly tailored. It’s not just an NGK BPR6ES; it’s the exact NGK BPR6ES that Honda has deemed perfect for a specific list of their engines. This combination offers the ultimate peace of mind. It’s like getting a bespoke suit, perfectly fitted and guaranteed by the manufacturer to perform flawlessly in their machines. For serious Honda enthusiasts, this is the Holy Grail.
Key Features:
– Genuine Honda Part: This signifies direct endorsement and quality control from the engine manufacturer, ensuring optimal compatibility and performance for Honda engines.
– NGK BPR6ES Core: Combines the trusted performance of an NGK BPR6ES with Honda’s specific quality assurance and part number.
– Precision Engineered for Honda Engines: Specifically listed for a variety of Honda GC and GX series engines, meaning it’s calibrated for their unique combustion characteristics.
– Reliable Ignition and Durability: Benefits from both NGK’s spark plug expertise and Honda’s rigorous testing standards, promising excellent lifespan and consistent starts.
– Convenient 2-Pack: Ideal for servicing one or two Honda engines, providing genuine parts without needing to buy a larger, potentially unnecessary, quantity.
Performance & Real-World Use
I put one of these into my prized Honda HRX217 lawnmower, an engine I cherish for its smooth, effortless starts. The difference was immediately palpable. The engine started on the very first pull, even after a cold soak, and ran with an almost imperceptible smoothness. It felt incredibly refined, almost eager to perform. I’ve tried generics in this mower before, and while they worked, none gave me this level of absolute confidence and silky operation. It was a true “set it and forget it” experience.
Pros:
– Ultimate Compatibility & Assurance: Backed by both Honda and NGK, you’re guaranteed the correct plug and ideal performance for specified Honda engines.
– Unrivaled Reliability: This combination offers the highest level of confidence in starting ease, smooth running, and overall engine health.
– Optimized Performance: Engineered to Honda’s precise specifications, leading to the best possible fuel efficiency and power output for their engines.
– Exceptional Durability: The synergy of NGK’s quality and Honda’s validation means these plugs are built to withstand the rigors of Honda engine operation.
Cons:
– Highest Price Point: As expected for genuine OEM parts from two reputable brands, these plugs come at a premium, which might be a barrier for some.
– Limited to Honda Engines: While it’s an NGK BPR6ES, the “Genuine Honda Part” branding primarily targets specific Honda engine models, limiting its perceived universal appeal.
– Potentially Overkill: For older, less critical, or non-Honda equipment, the added cost and specific branding might be unnecessary.
Who Should Buy This:
If you own specific Honda GC, GCV, or GX series engines listed, and you demand the absolute best in terms of reliability, performance, and OEM precision, look no further. This is for the Honda enthusiast, the meticulous homeowner, or the professional who trusts nothing but genuine manufacturer parts for their equipment.
My Verdict:
This is the pinnacle of BPR6ES equivalents for designated Honda engines. The combined assurance of Honda’s OEM stamp and NGK’s quality results in flawless performance, smooth starts, and undeniable peace of mind. For a Honda owner, it’s worth every penny. I enthusiastically rate this a 9.8/10 – it’s as good as it gets for its intended purpose.
Comparison Insights: Finding Your Spark Plug Sweet Spot
Diving deep into these BPR6ES equivalents has been an exhilarating journey, and what strikes me most is the fantastic range of options available, catering to every budget and need. It’s not just about getting a spark; it’s about getting the right spark for your application.
Price Range Breakdown:
At the top of the spectrum, we have the Honda Genuine 98079-56846 Spark Plug (NGK BPR6ES). This is undeniably the premium choice, commanding the highest price. You’re paying for the absolute certainty of a genuine Honda-validated NGK plug, precisely engineered for specific Honda engines. Think of it as the ultimate factory-fresh setup.
Just a hair below that sits the New NGK Standard Spark Plug BPR6ES, 7131 Set of 4, and the NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk. These are core NGK products, offering top-tier quality and reliability without the specific Honda branding mark-up, though still priced as premium. The 4-pack offers better per-plug value, while the 2-pack is perfect for those smaller, targeted purchases. The BDPR6ES variant, being slightly more specialized, might sometimes fetch a slightly different price.
Then we move into the incredibly competitive value segment with the BPR6ES Spark Plug for NGK BPR6ES BP6ES Honda GX 4-Pack and the Yistiun BPR6ES Spark Plug for NGK 7131 Compatible With. These are significantly more budget-friendly. They aim to deliver comparable performance to the OEM specification without the premium brand price tag. While their per-plug cost is considerably lower, the difference in material consistency or ultimate longevity might exist, though my testing showed they perform admirably for their price.
Experience Level Match-Up:
For the Absolute Beginner / Casual User: If you just need a plug that works without much fuss, and you’re not dissecting engine performance graphs, the BPR6ES Spark Plug for NGK BPR6ES BP6ES Honda GX 4-Pack or the Yistiun BPR6ES Spark Plug are excellent entry points. They’re forgiving on the wallet and generally reliable for most common applications. They’ll get your mower or generator running without a hitch.
For the Enthusiastic DIYer / Regular Maintainer: This is where the New NGK Standard Spark Plug BPR6ES, 7131 Set of 4 really shines. You appreciate quality, understand the importance of reliable components, and want consistent performance for your varied equipment. You’re willing to pay a little more for that NGK assurance, knowing it’s a solid, universally respected choice. The NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk is also great if your specific engine calls for that “D” variant, showing an attention to detail.
For the Professional / Perfectionist / Honda Aficionado: Without a doubt, the Honda 2 Pack Genuine 98079-56846 Spark Plug NGK BPR6ES is your champion. You demand OEM-level precision, peak performance, and the utmost reliability for your critical Honda equipment. You understand that investing in the exact manufacturer-specified part can save countless hours of frustration and potentially extend engine life. You’re not just buying a spark plug; you’re buying peace of mind and optimal engine harmony.
What I’ve learned from my time testing these is that there’s truly no “bad” plug among these, just different tiers of quality, precision, and accompanying price points. Your choice should ultimately align with your equipment’s needs, your budget, and your own personal standard for reliability.
Final Verdict: Your Spark Plug Buying Guide
Choosing the right BPR6ES equivalent doesn’t have to be a bewildering experience. After countless hours with wrenches and engine manuals, I can confidently say that the best choice truly depends on your specific needs, budget, and the machine you’re working on. It’s an exciting journey to find that perfect ignition component that brings your engine to life with a satisfying roar!
The Enthusiast’s Recommendation:
For me, the New NGK Standard Spark Plug BPR6ES, 7131 Set of 4 is the reliable workhorse. It offers an incredible balance of trusted brand quality, consistent performance, and broad compatibility that makes it my default recommendation for most general-purpose small engines. If you own multiple machines and want a single, dependable option, this is it. It consistently delivers that smooth idle and robust power that makes working with small engines so satisfying.
When to Splurge for Perfection:
If you’re dealing with critical Honda equipment—think your prized lawnmower, generator, or pressure washer—and you want the absolute pinnacle of performance and OEM-guaranteed compatibility, then the Honda 2 Pack Genuine 98079-56846 Spark Plug NGK BPR6ES is a non-negotiable. It’s an investment in your engine’s longevity and peak performance, providing an unmatched level of confidence and that silky-smooth operation we all crave. This is for when “good enough” simply isn’t good enough.
The Budget-Savvy, Broad-Compatibility Pick:
For those maintaining a small fleet of diverse equipment, or simply looking for the most economical way to keep things running, the BPR6ES Spark Plug for NGK BPR6ES BP6ES Honda GX 4-Pack and the Yistiun BPR6ES Spark Plug are fantastic choices. They provide excellent value, deliver reliable starts, and keep your engines purring without denting your wallet. While they might lack the premium feel of a genuine NGK, they absolutely perform where it counts – providing consistent spark. They’re perfect for bulk replacements or keeping a healthy stock of spares.
The Specialist’s Choice:
And let’s not forget the NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk. This is for the discerning mechanic who knows their engine demands that slightly different specification. It’s a reminder that sometimes, tiny variations in design can make a world of difference in optimizing performance for specific engine architectures.
Ultimately, your engine deserves a spark plug that complements its design and your operational needs. My advice? Don’t just grab the cheapest option; consider what you value most – be it absolute reliability, specific OEM precision, or incredible value. Each of these plugs has a place in the small engine world, and with this guide, you’re now equipped to make an informed, confident choice that will have your engines humming happily!
FAQ Section: Your BPR6ES Spark Plug Questions Answered
Q1: What does “BPR6ES” actually mean on an NGK spark plug?
A1: It’s a code from NGK! “B” indicates the thread size (14mm). “P” means projected insulator type, offering better fouling resistance. “R” denotes a resistor type, suppressing electrical interference. “6” is the heat range (mid-range, suitable for many engines). “E” indicates the thread reach (19mm). “S” refers to the standard copper core electrode. It’s a comprehensive technical blueprint!
Q2: Can I use a BPR6ES equivalent if my engine calls for a BP6ES? What’s the difference?
A2: Yes, generally you can. The “R” in BPR6ES stands for resistor. If your engine calls for BP6ES, it doesn’t strictly require a resistor plug. Using a BPR6ES (resistor type) is usually harmless and often preferred to prevent electronic interference. The core performance for spark delivery is very similar, so it’s often a safe substitution.
Q3: How often should I replace my BPR6ES spark plug?
A3: For most small engines, a good rule of thumb is annually or every 100 hours of operation, whichever comes first. Heavy-duty use, running rich fuel mixtures, or very dusty conditions might warrant more frequent checks and replacements. Regular inspection can reveal fouling or excessive wear, signaling it’s time for a change.
Q4: Will using a non-NGK equivalent void my engine warranty?
A4: Generally, no, as long as the equivalent spark plug meets the original manufacturer’s specifications. The Magnuson-Moss Warranty Act protects consumers from manufacturers requiring specific brands unless they provide the parts free of charge. However, using a demonstrably incorrect or poor-quality plug that directly causes engine damage could complicate a warranty claim.
Q5: What are the symptoms of a failing BPR6ES spark plug?
A5: You’ll notice difficulties starting, rough idling, misfires, reduced engine power, poor fuel efficiency, and sometimes excessive exhaust smoke. The engine might also run sluggishly or die under load. These are all clear indicators that your spark plug is not firing correctly and needs inspection or replacement.
Q6: Do I need to gap a new BPR6ES spark plug?
A6: While many new spark plugs come pre-gapped for common applications, it’s always best practice to check the gap against your engine manufacturer’s specifications. Small engine manuals will provide the precise gap needed. A spark plug gapping tool is inexpensive and essential for optimal performance, ensuring the strongest possible spark.
Q7: Can a bad spark plug cause other engine problems?
A7: Absolutely! A consistently misfiring spark plug can lead to unburnt fuel entering the exhaust, potentially damaging catalytic converters (if present) or sensors. It can also dilute engine oil with fuel over time, reducing lubrication effectiveness and accelerating wear on internal components. Replacing them proactively is key to engine health.
Q8: What’s the ideal heat range for my BPR6ES spark plug? How do I know if “6” is right?
A8: The “6” in BPR6ES denotes a mid-range heat rating, suitable for a vast array of small engines. The ideal heat range ensures the plug tip stays hot enough to burn off carbon deposits but not so hot that it pre-ignites the fuel mixture. Always consult your engine’s manual; it will specify the correct spark plug, including the heat range, for optimal performance and longevity.
Q9: Is it worth upgrading to an iridium or platinum plug if my engine uses BPR6ES?
A9: For most small engines designed for copper core BPR6ES plugs, an upgrade to iridium or platinum isn’t usually necessary or cost-effective. While these advanced materials offer extended life and sometimes slightly better ignition in automotive applications, the demanding, short-duration use of small engines often makes the longevity benefits negligible. Stick to what the manufacturer recommends for best results.
Q10: What safety precautions should I take when changing a spark plug?
A10: Always ensure the engine is off and cool to prevent burns. Disconnect the spark plug wire to avoid accidental starting. Wear appropriate hand protection (gloves). Be careful not to overtighten the new plug, as this can strip threads in the cylinder head. Use a torque wrench if possible, or tighten by hand until snug, then an additional 1/4 to 1/2 turn.
As an Amazon Associate, We earn from qualifying purchases