NGK Spark Plug BR8HS

A replacement spark plug is only useful if its heat range and fit match the engine, and a long string of part numbers can make that check feel harder than it needs to be. The NGK BR8HS is sold as a four-pack and is listed as replacing several reference numbers, giving you a specific part to compare with the plug already in your equipment.

Its stated design focuses on managing heat and resisting carbon buildup and pre-ignition. That may matter when you’re choosing a replacement by part number rather than looking for a plug with extra features.

Where it shines

The BR8HS has a solid copper core, a nickel-tipped electrode and high-alumina ceramic insulation. The product information says its heat range is wider than that of ordinary plugs, and that the ceramic helps transfer heat while providing electrical insulation. It also describes a triple-gasket sealing process intended to prevent combustion-gas leakage. These are relevant design details for a working spark plug, but they don’t confirm that it suits every engine.

The listed replacement references include S41FR, 734371, 8206871, AP8206871, 92070-1201 and several 09482, 94701, 94702 and 94709 numbers. If one of those is printed on your current plug or appears in your equipment documentation, this pack gives you a clear identifier to compare. Without having tested it, the useful buying signal here is the named model and replacement list—not a promise of universal fit.

What to know

The pack contains four plugs, which is handy if you need more than one replacement or want matching spares on hand. The key limitation is that no supported equipment list, plug gap or installation specification is provided in the product details. Don’t choose it solely because it looks similar to the old plug: match the BR8HS designation or a listed replacement reference against the engine maker’s requirements.

If you prioritize a clearly identified replacement and the listed design features, this is a more direct route than buying a generic plug by appearance. If you prefer a part whose fitment is confirmed for a specific machine in the listing, the missing application details may make another listing easier to assess. It suits you if your existing part number matches, it isn’t for you if you need fitment confirmed without checking your equipment information.

Best use cases

This pack makes sense when replacing plugs in equipment that specifies the BR8HS or one of the listed reference numbers. For example, you could take the old plug out, read its stamped code and compare it with the replacement information before fitting a new one. That simple check is more dependable than guessing from shape alone. The four-pack can also suit someone who wants spares of the same specified model, though the product details don’t say how many plugs a particular piece of equipment needs.

To wrap up

Choose the NGK BR8HS when its model or a listed replacement number matches the requirement for your engine and a four-pack suits your needs. Look elsewhere if you can’t establish that match, or if you need installation measurements and application guidance supplied with the product. The copper core, nickel-tipped electrode and sealing design are useful points of difference, but fitment remains the deciding question.