The Elite series 250 amp alternator offers great output at idle RPM and excellent durability in a direct-bolt-in package. 6 phase technology, combined with massive twin rectifier assemblies and 12 diodes makes these alternators totally durable for daily use, while still maintaining great output at low RPM. These alternators will make 180 amps at engine idle speeds with a full 250 amp output at cruising speeds. This unit comes with an OEM diameter pulley, making it perfect for high RPM and racing use. NOTE: This unit may require a rectangle to oval adapter harness if your vehicle was equipped with the CS144 Heavy duty charging option from the factory. (this is not common) Ask a MechMan associate for assistance if you are unsure! Name Model Engine Year(s) Amperage BUICK Rainier 5.3 04-06 250a CADILLAC Escalade 5.7 / 6.0 / 6.2 99-04 250a CHEVROLET Astro 4.3 96-05 250a CHEVROLET Avalanche All Engines 02-04 250a CHEVROLET Camaro 5.0 / 5.7 98-02 250a CHEVROLET Full Size Truck/Silverado 4.3 96-04 250a CHEVROLET Full Size Truck/Silverado 4.8 99-04 250a CHEVROLET Full Size Truck/Silverado 5.0 96-99 250a CHEVROLET Full Size Truck/Silverado 5.3 99-04 250a CHEVROLET Full Size Truck/Silverado 5.7 96-00 250a CHEVROLET Full Size Truck/Silverado 6.0 99-04 250a CHEVROLET Full Size Truck/Silverado 7.4 96-00 250a CHEVROLET Full Size Truck/Silverado 8.1 01-05 250a CHEVROLET S-10 / Blazer 4.3 96-04 250a CHEVROLET SSR 5.3 / 6.0 03-06 250a CHEVROLET Suburban All Gas Engines 96-04 250a CHEVROLET Tahoe/Full Size Blazer All Gas Engines 96-04 250a CHEVROLET Trailblazer 5.3 03-06 250a CHEVROLET Trailblazer 6.0 03-06 250a GMC Envoy 5.3 03-06 250a GMC Full Size Truck / Sierra 4.3 96-04 250a GMC Full Size Truck / Sierra 4.8 99-04 250a GMC Full Size Truck / Sierra 5.0 96-99 250a GMC Full Size Truck / Sierra 5.3 99-04 250a GMC Full Size Truck / Sierra 5.7 96-00 250a GMC Full Size Truck / Sierra 6.0 99-04 250a GMC Full Size Truck / Sierra 7.4 96-00 250a GMC Full Size Truck / Sierra 8.1 01-05 250a GMC S-15 4.3 96-04 250a GMC Safari 4.3 94-04 250a GMC Suburban All Gas Engines 96-04 250a GMC Yukon All Gas Engines 96-04 250a HUMMER H2 6.0 03-07 250a OLDSMOBILE Bravada 4.3 94-01 250a PONTIAC Firebird 5.0 / 5.7 98-02 250a
