AMF Harley-Davidson 398 vs AMF Ski-Daddler Mark VI 640
Verdict: AMF Harley-Davidson 398 vs AMF Ski-Daddler Mark VI 640
The AMF Harley-Davidson 398 and the AMF Ski-Daddler Mark VI 640 are both snowmobiles — here is how they stack up on the figures that matter. AMF Ski-Daddler Mark VI 640 leads on rated power with 36 hp against 30 hp. AMF Harley-Davidson 398 is the lighter machine (180 kg vs 181 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. AMF Ski-Daddler Mark VI 640 holds more fuel (22.7 L vs 20.8 L) for longer stints between fills. AMF Harley-Davidson 398 is the newer design (1971 vs 1970). In short: choose the AMF Ski-Daddler Mark VI 640 for outright pulling power, or the AMF Harley-Davidson 398 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.


