Champion RV17YC Spark Plugs Small Block Chevy V8 305 350 Box of 8 Kohler magnum old stock believe these are better than the newer ones!
Champion RV17YC (25) spark plug is a versatile, tapered-seat, copper-core spark plug commonly used in vintage automotive V8 engines (1970s–1980s), Kohler Magnum engines (KT17, M18, M20), and various lawn and garden equipment. It features an extended projection tip and a 0.035 in (
) gap.
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Primary Fitment Details
Lawn & Garden/Small Engines: Widely used in Kohler engines, specifically KT17, M18, and M20, as well as many riding mower applications.
Automotive: Commonly fits 1970s–1980s GM/Chevrolet V8 engines (e.g., 5.0L, 5.7L, 6.6L in G20 vans) and Cadillac passenger cars.
Alternative/Replaces: Autolite 26 or NGK UR4.
Technical Specifications
Thread Diameter:
(M14x1.25)
Reach:
(
)
Hex Size:
(
)
Seat Type: Tapered
Gap: Pre-gapped to 0.035 in (
)
Heat Range: 17more than welcome to pick up at shop in butler pa & save shipping.
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