Moto-Ski Grand Sport 400 Snowmobile (1974-1975)

The Moto-Ski Grand Sport 400, a classic snowmobile from the 1974-1975 model years, was a key offering during a transitional period for the Moto-Ski brand under Bombardier's ownership. This model was consistently powered by a BSE (Bouchard Snowmobile Engine) free-air engine, featuring a 400cc displacement in 1974 (often called Grand Sport T.S. 400) and a 399cc version in 1975 (designated TS 400). While the Grand Sport 400 retained a BSE engine throughout these years, 1975 marked the final year the BSE name was officially used, as Moto-Ski began a broader shift towards Rotax engines for most of its lineup. This makes the 1974-1975 Grand Sport 400 models among the last to feature the original BSE powerplants before the brand fully integrated with Bombardier's Ski-Doo platform from 1976 onwards. Q: How do I ensure I'm selecting the correct parts for my Moto-Ski Grand Sport 400?

A: To guarantee fitment, please use the year and model selector at the top of this page. This will ensure you find parts specifically compatible with your 1974 or 1975 Grand Sport 400.

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