421000076 Crankshaft Assembly for Sea-Doo GTX 800 1996-1997

Crankshaft Assembly for Sea-Doo

This crankshaft assembly is a replacement engine component for the Sea-Doo GTX 800, cross-referencing OEM part number 421000076, and it turns piston stroke into the rotational drive your jet pump needs.

Overview

The Crankshaft Assembly for Sea-Doo is a complete rotating core part for the GTX 800 engine. It links the connecting rods to the engine output so power flows smoothly from combustion to the jet drive. This crankshaft assembly is aimed at rebuilders and owners reviving a 1996 to 1997 GTX 800.

Built For Performance

• Direct replacement for OEM part number 421000076
• Machined journals sized for the 800 series two-stroke engine
• Balanced rotating assembly to cut vibration at high RPM
• Built for sustained load in marine conditions
• Supplied as a complete rotating assembly for rebuilds

Fits These Machines

• for Sea-Doo GTX 800, 1996-1997

On-The-Job Use

• Full engine rebuilds on GTX 800 personal watercraft
• Replacing a damaged crank after bearing or rod failure
• Restoring a stored or non-running PWC to the water
• Marine shops servicing 800 series Rotax-style engines

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket crankshaft assembly made to fit Sea-Doo applications as a replacement for OEM 421000076. It is not produced or sold by Sea-Doo.

Q: Can I install this myself? A: Crankshaft installation on this engine type usually calls for a press and case alignment tools, so professional assembly is advised for most rebuilders.

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