Honda OEM Rear Main Seal B16A B18C B-Series VTEC

Protect your B-series build from oil leaks with this Honda OEM Rear Main Seal, specifically engineered for the B16A B18C engine. Whether you're swapping in a B16A B18C or maintaining your 99-00 Civic Si | 94-01 Integra, this factory seal ensures tight, leak-free performance at the rear of the crankshaft where reliability matters most. Designed to Honda’s original specifications, this rear main seal provides long-lasting durability and a perfect fit—ideal for engine rebuilds, clutch service, or preventative maintenance. This is the seal that is behind your flywheel, it is highly recommended to replace it with a new unit when you remove the transmission for service.  Especially on an older vehicle with a seal that hasn't been changed.   Honda OEM Part Fitment: B16A B16A2 B16A3 B18B1 B18C B18C1 B18C5 B18C6