SEA-DOO COUPLER SHAFT, WC-03250, 420837556, JET SKI, PWC DRIVE PARTS

Engine balance shaft assembly for Sea-Doo Rotax 1503 4-TEC engines. This component counterbalances rotating and reciprocating masses within the bottom end to reduce vibration and ensure smooth operation. Supplied to replace OEM part number 420837556 on applicable 2011 personal watercraft and sport boat models, including naturally aspirated and supercharged/intercooled variants listed below.

Features

• Direct replacement for OEM balance shaft assembly 420837556
• Designed for Rotax 1503 4-TEC four-stroke engines (naturally aspirated and SCIC)
• Restores correct engine balance to minimise vibration and mechanical noise
• OEM-grade geometry for proper timing/mesh with the crankshaft
• Manufactured to factory tolerances for reliable operation

Specifications

• Part type: Balance (counter) shaft assembly
• Engine family: Rotax 1503 4-TEC, 1,494 cc, three-cylinder, four-stroke
• Application location: Bottom end, driven in phase with the crankshaft
• Supersession/variant noted in OEM listings: 420837559
• Supplier/reference code: WC-03250

Cross-Reference OEM Part Numbers

• 420837556
• 420837559

Vehicle Fitments

• Sea-Doo 210 Wake 310 (2011)
• Sea-Doo 230 Wake 430 SCIC (2011)
• Sea-Doo 230 Wake 510 SCIC (2011)
• Sea-Doo GTI 130 (2011)