93101-40002-00 Crankshaft Oil Seal for Yamaha AR 230 HO 1100 2005-2009

Crankshaft Oil Seal for Yamaha

This crankshaft oil seal, reference 93101-40002-00, is a direct-fit replacement that keeps oil contained around the crankshaft on Yamaha AR 230 HO 1100 boats.

Overview

This crankshaft oil seal is a replacement sealing component made to fit Yamaha AR 230 HO 1100 boats from 2005 through 2009. The seal retains lubricating oil around the crankshaft and blocks water and debris from entering the crankcase. It suits owners rebuilding a top or bottom end, resealing a leaking crank, or refreshing a high-hour engine.

Built For Performance

• Direct cross-reference to Yamaha part number 93101-40002-00
• Engineered to hold crankcase oil pressure and prevent leaks at the crankshaft
• Sealing lip designed to run against the rotating crankshaft with minimal drag
• Resistant to hot engine oil and fuel vapors in the crankcase environment
• Compact press-fit profile that seats in the original housing bore

Fits These Machines

• for Yamaha AR 230 HO 1100, 2005-2009
• for Yamaha AR 230 HO models using the 1100 HO engine platform

On-The-Job Use

• Crankcase reseal during engine rebuild or overhaul
• Fixing oil seepage around the front crank seal
• Scheduled maintenance on high-hour AR 230 HO engines
• Replacing a hardened or worn seal that has begun to weep

Specs At A Glance

Good To Know

Q: How do I know if my crankshaft oil seal needs replacing? A: Oil weeping from the crank area, a drop in crankcase oil level, or a visible crack in the seal lip usually signals replacement. The seal is a wear item that hardens over time and should be inspected during any engine teardown.

Q: Does this seal require any special tools to install? A: The seal presses into the crankcase bore, so a seal driver or a socket sized to the outer diameter helps seat it squarely. Take care not to damage the lip when sliding it over the crankshaft.

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