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PK-4108 Perkins 4108 Marine Serpentine Pulley Kit

Price Was: $479 - Now $407

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PK-4108 Perkins 4108 Marine Serpentine Pulley Kit


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  • Now you are able to run a high output marine alternator
  • eliminate belt dust
  • Save fuel
  • Reduce engine noise
  • Increase the life of your engine
  • Add a second crank pulley and run other devices
  • Greatly extend your cruising time and distance

Product Description

Our marine Perkins 4.108 Serpentine Pulley Upgrade Kit is very easy to install. Allow approx. 6 hours and 30 minutes the first time you do this particular installation. When purchasing any Electromaax marine alternator the pulley in this kit can be installed for you at the factory. The new serpentine (micro ‘V’) crank pulley on this model is a direct bolt on 6 groove replacement, remove the existing crank the traditional way by removing the centre bolt and simply use a pulley puller to pull the ½” v groove crank off. This specific kit now comes with a brand new genuine Perkins pump on the water pump pulley (it is a press fit and needs to be done in a shop) which means your existing one becomes a spare. When replacing the original O.E.M. alternator with your new Electromaax high output marine alternator, be sure to read the wiring instructions prior to installing the unit.

Helpful install hints

1. When loosening the 4 water pump bolts leave the existing belt in place THEN undo the bolts. This way you can use the belt to stop the W/P pulley spinning. This very popular Perkins  Marine 51 HP. engine, and all other engines operate much smoother, quieter and virtually eliminate belt dust with a serpentine pulley upgrade kit. Additional benefit of an Electromaax kit is the ability to drive auxiliary devices ie: Seafrost refrigeration, engine driven water maker, second alternator, compressor… with the addition of a second crankshaft pulley. Contact us for further details You can now safely operate the Electromaax FM-12-80, 100, 120,140 or 160 amp marine alternators that produce up to 70% of their output at fast idle.

Additional Information

Weight 1.5 lbs
Dimensions 8 x 8 x 3 in