1UY-11651-00-00 Connecting Rod Kit for Yamaha Wolverine 350 1995-2009

Engine Oil Seal Kit for Yamaha Banshee 350

This engine oil seal kit, commonly known as crank seals, is a direct replacement set for rebuilding the lower end of a Yamaha Banshee 350 and sealing the crankshaft against oil and air leaks.

Overview

This engine oil seal kit fits the Yamaha Banshee 350 across the 1987 through 2006 model run. The kit supplies the crank seals needed to reseal a worn bottom end during a rebuild. It is intended for riders and mechanics servicing a Banshee 350 engine oil seal kit installation on a two-stroke twin.

Built For Performance

• Seals the crankshaft against air leaks that lean out a two-stroke engine
• Keeps transmission oil out of the crankcase on the Banshee 350
• Constructed for the heat and RPM demands of a twin-cylinder two-stroke
• Direct replacement fit in the factory seal locations
• Ideal for a full bottom-end rebuild or a preventive reseal

Fits These Machines

• for Yamaha Banshee 350, 1987
• for Yamaha Banshee 350, 1988
• for Yamaha Banshee 350, 1989
• for Yamaha Banshee 350, 1990 through 2006
• for Yamaha Banshee 350, all model years in the 1987-2006 range

On-The-Job Use

• Bottom-end rebuilds after a crank or bearing failure
• Resealing an engine that is losing transmission oil or pulling air
• Top-end refresh jobs where the crank seals are replaced at the same time
• Preventive maintenance on a high-hour Banshee 350

Specs At A Glance

Good To Know

Q: Do I need to split the cases to install these seals? A: On the Banshee 350 the crank seals sit behind the primary and ignition covers, so a full reseal usually means splitting the cases. Plan the job as part of a bottom-end rebuild.

Q: What happens if the crank seals fail? A: A leaking seal lets air into the crankcase, which leans out the air-fuel mixture and can cause a seizure. Replacing the seals restores proper sealing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.