Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / TwinPower / New

Twin Power 99-17 Twin Cam Big Twin Head Gasket 3.875 Inch Bore .040 MLS Pr

TwinPower · New

Twin Power 99-17 Twin Cam Big Twin Head Gasket 3.875 Inch Bore .040 MLS Pr

MPN 043178 · Store SKU twp043178

$67.99
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/8/2026, 1:47:47 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

Twin Power™ head gaskets deliver premium sealing performance, ensuring maximum compression, reliability, and durability for Harley-Davidson Big Twin and M8 engines. Head Gaskets, 3.875 in. Bore, .040 in. MLS, Pair

Manufacturer fitment & guides

Check 043178 against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

More from TwinPower ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your cart.