+3 Heat Sink & PMD/FSD Extension Harness for 1994-2002 6.5l Turbo Diesel Chevy GMC KB-6.5l-PMDHS $25.95 In stock Quantity: 1 Add to Bag Product Details Heat Sink & Extension Harness for the Pump Mounted Driver on Chevy/GMC 6.5l Diesel Applications. Also sometimes called the Fuel System Driver when remote mounted. Heat Sink mounts to the lower intake manifold allowing the FSD to dissipate heat more readily. Cooling fins provide additional cooling to the FSD. Extra long harness allows you to mount the FSD in a variety of different locations. Heat Sink Kit Includes: Heat Sink Mounting Bolts PMD Extension Harness Fits: 1994-2002 6.5l Turbo Diesel engines in Chevy/GMC C/K2500, 3500, Tahoe & Suburban applications. Save this product for later Favorite