Crankcase Cover O-Ring for Yamaha Jet Blaster Pro 3-Up 1050 2025-2026

Crankcase Cover O-Ring for Yamaha

This crankcase cover O-ring seals the crankcase cover mating surface on Yamaha Jet Blaster Pro 3-Up 1050 watercraft from 2025 through 2026, keeping oil sealed inside the engine and water out.

Overview

This crankcase cover O-ring is a replacement sealing component made for Yamaha Jet Blaster Pro 3-Up 1050 personal watercraft built in 2025 and 2026. The crankcase cover O-ring fits between the cover and engine case to prevent oil leaks and block moisture from entering the crankcase. It suits riders resealing a Yamaha 1050 engine during maintenance or rebuild work.

Built For Performance

• Oil-resistant rubber construction for dependable sealing
• Precision sizing to match the crankcase cover groove
• Handles the heat and vibration of marine engine operation
• Resists fuel, oil, and water exposure common in PWC engines
• Direct replacement for the original cover seal

Fits These Machines

• for Yamaha Jet Blaster Pro 3-Up 1050
• for Yamaha Jet Blaster Pro 3-Up 1050 2025-2026

On-The-Job Use

• Crankcase cover resealing during engine service
• Oil leak repair around the crankcase cover area
• Engine reassembly after rebuilds on Yamaha 1050 watercraft
• Routine seal replacement during maintenance

Specs At A Glance

Good To Know

Q: Is this O-ring an original Yamaha part? A: No, this is an aftermarket replacement O-ring. Confirm your engine serial number and cover style before ordering.

Q: Does this O-ring come with installation hardware? A: This listing covers the O-ring seal only, so reuse or source any cover bolts separately as needed.

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