Home / Engine & Performance / Valves & Springs / Supertech Spring Seat Loc OD: 20.22mm ID: 13.08mm TH: 0.38mm “Chevy Duramax 6.6L diesel CA625+ custom age HSK” has been added to your cart. View cart Supertech Spring Seat Loc OD: 20.22mm ID: 13.08mm TH: 0.38mm€ 1,84 Supertech Spring Seat Loc OD: 20.22mm ID: 13.08mm TH: 0.38mm quantity Add to cart SKU: SS-3004 Categories: Cylinder Head, Engine & Performance, Valves & Springs, Valves & Springs Brand: Supertech Description Description Inside Diameter: 13 Outside Diameter: 20.22 Thickness: 0.38 Related products Bolts & StudsEngine & Performance ARP cabinet with black 12pt accessory bolts Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 78.00mm 9.0:1 Bolts & StudsEngine & Performance ARP cabinet with SS 12pt metric accessory bolts Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG60 Powergate 60