AltMount Serpentine Pulley Kit – Westerbeke 13A, 21, 27

Original price was: $494.50.Current price is: $442.00.

Fits Westerbeke 13A, 21, 27 marine diesel engines.

Discontinued. Only a few left.

SKU: BAL-48-WSP-21 Category: Tag:


Balmar AltMount Serpentine Pulley Kit – Westerbeke

This AltMount serpentine pulley kit fits Westerbeke 13A, 21, 27 marine diesel engines. It allows you to install a high output marine alternator in the alternator original position. These kits are the ideal upgrade for serious cruisers and others looking to maximize their charging capacity delivered by their main engine.

AltMount®Serpentine Pulley Conversion Kit for Westerbeke Marine Diesel Engines

Engines Covered: Westerbeke 13A, 21, 27

Kit Includes: Three Ten-Groove (J10) Pulleys, Two J10, 40″ Circumference Serpentine Belts (one spare) & Mounting Hardware

Note: If you specify an AT-200A Alternator, a longer belt length may be required.


48-WSP-21A, 48-WSP-27A, 48-WSP-35B, 48-WSP-38B, 48-WSP-42B

Additional information

Weight 12 lbs
Dimensions 8 × 8 × 4 in

AltMount, Balmar




Usually Ships in 1-2 Business Days, Discontinued – Verify Availability


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.