AltMount®Serpentine Pulley Conversion Kits
Balmar’s Patented AltMount® Serpentine Pulley Kits Facilitate the use of Balmar High Power Alternators
Single Vee pulleys can only support alternator power loads (PTO) of up to 100A for 12V applications (45A for 24V applications). A serpentine pulley provides greater surface contact between the belt and pulley, and thus can accommodate much higher PTO requirements.
AltMount® Pulley Kits are designed uniquely for each engine listed below, including all the hardware required to complete the installation. The system is installed by placing and fastening a conversion pulley over the existing crank pulley and replacing the water pump pulley. Two serpentine belts are provided with each kit.
AltMount® Pulley Kits are designed to be used with Balmar 6-Series and XT-Series Alternators. We cannot guarantee fit with other brands of alternators. For 95-Series Alternators, use the 48-AM-39 alternator pulley. For 7-Series Alternators, use the 48-AM-102 alternator pulley. For Hitachi Alternators, use the 48-AM-97 alternator pulley.
AltMount® Pulley Kits install easily and deliver a marked improvement in power transfer while reducing noise and engine vibration. View the installation video below to see how easy it is to install an AltMount® Pulley Kit, then select a kit for your engine from list!
Note: Engine manufacturers often make minor changes in their engine platforms which may require minor changes to the AltMount© Kit. Also, a previous boat owner may have made changes to the pulley scheme which must be overcome. As a result, Balmar recommends that every AltMount© Kit be installed by a qualified professional.
Note: Balmar no longer offers Yanmar Second Alternator Kits. With the introduction of our XT-Series, 250A alternator platform, we believe the most cost-effective solution for higher power is the replacement of a primary alternator with the XT-Series. The cost and complexity of adding a second alternator mount is no longer required.
Identify Your Engine Model on the Left Column to find the Appropriate AltMount® Kit on the Right, Then Click on the Kit Number to view a Kit Picture and Additional Information:
|Yanmar Engine Model||AltMount® Kit Number|
|4JH3, -TE, -HTE||48-YSP-4JH-D|
|4JH4-E, 4JH5, 4JH5-E||48-YSP-3JH-A
|6LY, 6LYA-STP, 6LY2-STP||48-YSP-6LY-A|
|Volvo Penta Engine Model||AltMount® Kit Number|
|2001, 2002, 2003(T) (3 Pulleys)||48-VSP-2001|
|2001, 2002, 2003(T) (2 Pulleys)||48-VSP-2001R|
|D2-55A, B, C, D, E, F||48-VSP-D2-A|
|Westerbeke Engine Number||AltMount® Kit Number|
|44A, 44B, 44C||48-WSP-44A|
|Universal Engine Number||AltMount® Kit Number|
|M50, M50A, M50B, 5444||48-USP-M50|
|Perkins/Sabre Engine Model||AltMount® Kit Number
|PERAMA, M20, M25, M30||48-VSP-MD-A|
|PRIMA, M50, M60, M80||48-PSP-PR-A|
|Nanni Diesel Engine Model||AltMount® Kit Number
|N4.4, N4.5, N4.6||48-NSP-4.6|
| Ford/Lehman Engine Model||AltMount® Kit Number|
|Vetus Engine Model||AltMount® Kit Number|
|M4.15, M4.17, M4.55||48-VSP-M4.17|
New AltMount® Pulley Kits are constantly under development. If you do not see a kit for your engine, contact us or call our Technical Support line at 1.360.435.6100 x3.
Showing 1–20 of 41 results