Home / Engine & Performance / Valves & Springs / Supertech Spring Seat Loc OD 20.10mm ID: 13.60mm TH: 2.50mm “Chevy Duramax 6.6L diesel CA625+ custom age HSK” has been added to your cart. View cart Supertech Spring Seat Loc OD 20.10mm ID: 13.60mm TH: 2.50mm€ 10,48 Supertech Spring Seat Loc OD 20.10mm ID: 13.60mm TH: 2.50mm quantity Add to cart SKU: SS-3021 Categories: Cylinder Head, Engine & Performance, Valves & Springs, Valves & Springs Brand: Supertech Description Description Inside Diameter: 13.60 Outside Diameter: 20.10 Thickness: 2.50 Related products Bolts & StudsEngine & Performance ARP cabinet with SS 12pt accessory bolts Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG40 Comp Gate 40 Engine & PerformanceEngine Block JE-Pistons kit R8 5.2L V10 ’09+ 85.00mm 10.5:1 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 250 3.0L 24V 74.00mm 9.5:1