Crankshaft Oil Seal Kit for Sea-Doo HX 720 1995-1997

Crankshaft Oil Seal Kit for Sea-Doo HX 720

This crankshaft oil seal kit is a direct replacement sealing set for the Sea-Doo HX 720 personal watercraft, designed to reseal the crankshaft ends and keep crankcase pressure where it belongs.

Overview

This crankshaft oil seal kit is built for the Sea-Doo HX 720, covering the 1995 through 1997 model years. The kit supplies fresh crank seals so the engine holds oil and compression at the crank ends instead of leaking past worn lips. It is intended for owners and shops rebuilding or resealing the 720 engine in the HX hull.

Built For Performance

• Replaces worn crankshaft end seals to restore crankcase sealing
• Fits the 720 two-stroke engine used in the HX runabout
• Seal lips designed to hold oil and resist pressure loss
• Direct fit for the 1995, 1996, and 1997 HX 720
• Kit form so both crank seal positions are covered in one order

Fits These Machines

• for Sea-Doo HX 720, 1995
• for Sea-Doo HX 720, 1996
• for Sea-Doo HX 720, 1997

On-The-Job Use

• Bottom-end rebuilds and crankshaft reseal jobs
• Leak-down testing and crankcase pressure repairs
• Seasonal maintenance on older two-stroke PWC engines
• Shop work where a failed crank seal is causing a lean condition

Specs At A Glance

Good To Know

Q: When should crankshaft oil seals be replaced? A: Replace them any time the engine is apart for a rebuild or when a leak-down test shows the crankcase will not hold pressure. Worn seals can pull air and cause a lean running condition.

Q: Do I need to split the cases to install this kit? A: Crankshaft oil seals sit at the ends of the crank, so installation usually requires removing the engine and opening the case on most two-stroke PWC engines. Have a service manual on hand for torque and reassembly steps.

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