Suzuki GP100 GP-100 100cc Rotary Disc Outer Valve Cover 1978-82 OEM 12450-39200

Product Description

This is a genuine Suzuki rotary disc outer valve cover, also known as a rotary valve housing or intake case, designed for classic two-stroke engines using rotary disc induction. It mounts to the right-side crankcase and encloses the rotary timing disc while directing the air-fuel mixture into the crankcase through the intake port. The housing includes a central oil-seal recess to help maintain crankcase compression and prevent oil leakage. Made from durable cast aluminum alloy, it also features the original “MADE IN JAPAN” marking. Compatible Models * Suzuki GP100 — 1978–1982 — Direct OEM fit; Part Nos. 12450-39200 / 12450-39202 * Suzuki GP100 — 1983–1993 — Same basic rotary valve housing design * Suzuki GP125 — 1978–1989 — Compatible rotary disc system; verify fitment * Suzuki TRS100 / TRS115 — Late 1970s–1980s — Similar crankcase and rotary valve layout Please compare part numbers, mounting points, and dimensions before purchase.