1. Home
  2. DC Power
  3. Alternators and Regulators
  4. Pulley Kits
  5. Serpentine belt kits for Westerbeke engines
  6. Balmar Pulley Kit 48-WSP-40 for Westerbeke 40
Balmar Pulley Kit 48-WSP-40 for Westerbeke 40
Balmar Serpentine Pulley Kit

Balmar Pulley Kit 48-WSP-40 for Westerbeke 40

On sale $744.00 $665.00
Balmar Altmount Serpentine pulley kit permits mounting a much larger alternator in lieu of the standard model - for Westerbeke 40
p/n: 48-WSP-40
Availability: Can ship direct from Balmar if you select a paid shipping method.

NOTE This kit uses a K6 (6 groove pulley) and so if you are ordering an alternator to go with it you need an alternator with a K6 pulley

These Altmount Kits by Balmar offer the opportunity to install a larger alternator than would otherwise be possible. They are designed to fit select engine models, the list expands every day so if you don't see your engine listed do give us a call. Alternator upgrades using a single drive belt are limited by the amount of power that can be transferred by the belt but using a serpentine belt considerably increases the possibilities. The kits include a set of serpentine pulleys to go over the crankshaft and water pump pulley and replace the alternator pulleys and come with a matching serpentine belt. They are sold for specific engine models only. The alternators need to be purchased separately. If you order an alternator with a kit it will come with the appropriate pulley pre-installed. Installation is relatively easy. The kit comes with two belts but purchasing an additional spare belt is recommended as these are not typical serpentine belts.

Im sorry but the photos are generic, I dont have photos of each kit or installation photos for each engine.

Read my BLOG POST about installing one of these kits.

Installation notes are on the blog post

My blog post has installation notes for a serpentine kit.


This kit is designed for use with a Balmar alternator.  It may be possible to use it with another alternator that has a 17mm shaft diameter, but the fit is not guaranteed.  If you choose to go that route you are on your own. 

Related Items

Spare Serpentine Belt
$46.95 $44.95 Sale
Some sizes in stock

Recently Viewed Items