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TwinPower · New

Twin Power 17-Up M8 with 4.25 Big Bore Kit 4.25in Head/Base Gasket Kit .030-.014 MLS

MPN 042124 · Store SKU twp042124

$90.99
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Supplier stock checked 11/7/2026, 5:17:39 AM UTC. Adding a part does not reserve it.

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Product details

Cylinder Head and Base Gasket Kits for 124" and 128", oil-cooled or water-cooled models, with 4.25" Big Bore Cylinders. This is a strictly bolt-on kit, as the special gaskets eliminate the need to weld and modify oil or water passages. Gasket kits are available with either .030" or .040" thick gaskets . The Cylinders are offered in a factory-style black texture finish with highlighted fins. Cast-iron liners ensure strength, durability and quiet operation. Head and Base Gasket Kit, .030 in. Thick

Manufacturer fitment & guides

Check 042124 against the manufacturer’s application information below.

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