Feature●[Perfect Fitment]: Compatible with Avanti II 01-04; Compatible with Buick Rainier 04; Compatible with Cadillac CTS 04-07, Escalade/Escalade EXT 02-06, Escalade ESV 03-06; Compatible with Chevrolet Avalanche 07-12, Avalanche 1500 02-06, Camaro 98-02/10-15, Corvette 97-07/10-10, Express 1500 03-12, Express 2500 03-15, Express 3500 03-16, Express 4500 09-15, Silverado 1500 99-13, Silverado 1500 Classic/Silverado 1500 HD Classic/Silverado 2500 HD Classic/Silverado 3500 Classic 07-07●[Perfect Fitment]: Compatible with Chevrolet Silverado 1500 HD 01-03/05-06, Silverado 2500 99-04, Silverado 2500 HD 01-16, Silverado 3500 01-06, Silverado 3500 HD 07-16, SSR 03-06, Suburban 1500 00-12, Suburban 2500 00-11, Tahoe 00-14, Trailblazer 06-09, Trailblazer EXT 03-04, W3500 Tiltmaster 04-08, W4500 Tiltmaster 03-10; Compatible with Hummer H2 03-07, H3 08-10, H3T 09-10; Compatible with Isuzu Ascender 03-04; Compatible with Pontiac Firebird 98-02, GTO 04-06●[Perfect Fitment]: Compatible with Saab 9-7x 08-09; Compatible with GMC Envoy XUV 04-04, Savana 1500 03-12, Savana 2500 03-15, Savana 3500 03-16, Savana 4500 09-15, Sierra 1500 99-13, Sierra 1500 Classic/Sierra 1500 HD Classic/Sierra 2500 HD Classic/Sierra 3500 Classic 07-07, Sierra 1500 HD 01-03/05-06, Sierra 2500 99-04, Sierra 2500 HD 01-11, Sierra 3500 01-06, Sierra 3500 HD 07-11, W3500 Forward 04-08, W4500 Forward 03-10, Yukon/ Yukon XL 1500 00-14, Yukon XL 2500 00-11●[Two Size Springs]: We offer two different types of springs, one 55 PSI relief spring and one 50 PSI relief spring. Both of them can control the oil pressure in a reasonable range and prevent tube bursts in the engine.●[Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted engine oil pump. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.Description