2-Stroke Engine Applications:
Sea-Doo 720cc: GS, GTI, GTS, Explorer, Challenger, Speedster, Sportster
Sea-Doo 800cc: GSX RFI, GTI RFI, GTX RFI, SPX, 3D RFI, Challenger 1800
Sea-Doo 951cc: GSX LTD, GTX/GTX DI, XP/XP DI, RX/RX DI, LRV, 3D DI
4-TEC Engine Applications:
Sea-Doo 1503cc: GTX S/C/LTD/STD/Wake, RXP, RXT, SP, Challenger, Speedster
Replacement Details:
OEM 529035506 / Aftermarket 950-135
Engine alignment support plate covering all Sea-Doo 2-Stroke and 4-TEC platforms (1990-2012). Direct OEM replacement for 529035506. Precision-machined tool that mounts to the jet pump area for engine-to-driveshaft alignment verification during engine installation or rebuild.
⚠️ Fitment Warning: Sea-Doo applications only. Does NOT fit Spark models. Confirm OEM part number before ordering. Support plate only; additional alignment tool components sold separately.