SPEC Stage 4 clutch kit for 1989–2003 Nissan CA18DET 1.8L includes a 4-puck disc and is presented as a stage 4 single-disc solution for high-load applications. This kit replaces the factory clutch components with a more aggressive friction arrangement intended for heavy use in modified CA18DET setups. Designed to meet the demands of higher torque or race-influenced driving, it retains a single-disc layout while offering a more direct engagement profile than stock.
Spec 89-03 Nissan CA18DET 1.8L Stage 4 Clutch Kit w/ 4 Puck Disc