technical specs for 30475 alternator belt

2 posts / 0 new
Last post
cpntodd
Offline
Joined: 11/26/14
Posts: 10
technical specs for 30475 alternator belt

Does anyone know what the length and width of the standard 30475 belt on the M35 B? I'd like to walk into an auto parts store and buy an alternate rather than order from Westerbeke.

newguy's picture
newguy
Offline
Joined: 8/1/11
Posts: 408

Effective length = 39.5",  Top Width  = 0.41".  The Gates 7395 is a direct replacement, but many folks have opted for Dayco Top Cog 15xxx series.  The last three numbers is the effective belt length, i.e, a 395 is 39.5 inches.  Personally, I go with a tight fitting belt, reserving a looser belt (an old stretched belt) that can be quickly slipped over the pulleys with minimal effort when in a hurry.

Nick Caballero
Retired C36/375IA Mk II Technical Editor

Log in or register to post comments