Manifold U-Ring. Fits Stock CV & 42mm Mikuni Carburettor to Heads. Saddlemen Seats gears and bearings — and

gears and bearings — and it coats and plates them completely

* Forged Pistons

* Replaces OEM # 42275-07A

* Stock 88" cylinders may be bored to fit these pistons or purchase # DAY-88461

Manifold U-Ring. Fits Stock CV & 42mm Mikuni Carburettor to Heads. Saddlemen Seats gears and bearings — andFeatures & Benefits: * A special 42mm U'Ring manifold seal that allows the installation of the OEM CV or 42mm Mikuni carburettor when using S&S heads. * Fits Twin Cam & Evolution engines with S&S Heads. * Requires S&S CV "style" Manifold & S&S style manifold seals. * Sold Each. Tech Tips: * Will NOT Replace OEM # 27002 89 Proudly Made in the USA by S&S Cycle !