BPR4ES Spark Plug for NGK 6578 7222 for Kawasaki 92070-7004 FR691V FR730V FR651V for John Deere M805853 for Torch F4RTC for Honda 98079-54846 GXV120 GXV140 GXV160 GCV520U

What It Is

This is a replacement spark plug (NGK BPR4ES equivalent) designed for small engines in lawn mowers, generators, and other power equipment. It fits a wide range of Kawasaki, Honda, and John Deere engines, including the FR691V, FR730V, FR651V, GXV120, GXV140, GXV160, and GCV520U.

Fitment & Compatibility

Before buying, verify:

• Engine model: Confirm your engine’s model number (e.g., Kawasaki FR691V, Honda GXV160) – not just the machine brand. The plug is cross-compatible with NGK 6578, 7222, Torch F4RTC, and John Deere M805853.
• Reach & thread: This plug has a 19mm (3/4") reach and 14mm thread diameter. Measure your old plug’s thread length and diameter to match.
• Gap: Factory gap is 0.028-0.031 inches (0.7-0.8mm). Check and adjust with a gap tool before installing – pre-gapped plugs often arrive off.
• OEM vs aftermarket: This is a direct replacement for OEM Honda 98079-54846 and Kawasaki 92070-7004. No adapter or modification needed.

Key Things to Know

• Quality: NGK is a trusted OEM supplier; this plug is a standard copper-core design. It’s reliable but not premium (e.g., iridium) – expect 50-100 hours of use before replacement.
• Installation: Easy – remove the spark plug wire, unscrew old plug with a 13/16" or 5/8" socket, gap new plug, hand-tighten then 1/2 turn with a wrench. Don’t overtighten (damages threads).
• Common gotcha: The plug may be loose in the box – always check the gap. Also, ensure the wire boot is pushed fully onto the plug to avoid misfires.
• Price vs value: At ~$5, it’s a budget buy. No performance gain over OEM, but it’s fine for routine maintenance.

Should You Buy It

Yes, if you need a cheap, direct replacement for a Kawasaki FR-series, Honda GXV/GCV, or John Deere engine and don’t require a long-life plug. It’s ideal for seasonal swaps or as a spare. Skip if you want iridium durability (e.g., NGK BPR4EIX) or have a high-hour commercial mower.