AISIN clutch kit (KT-307A) restores clean gear changes and full torque transfer by replacing the friction disc, pressure plate, and release bearing as a matched assembly — eliminating the judder and slip that worn components cause. The assembly is rated for Number of Teeth: 21, Diameter [mm]: 225 mm, Supplementary Article/Supplementary Info: 211, Supplementary Article/Info 2: 404, with the friction disc compound chosen to match the torque output of the engine and resist glazing under the stop-start urban driving cycles where clutches wear fastest. Spline count, disc diameter, and diaphragm spring load are matched to the gearbox input shaft on TOYOTA models for a bolt-on installation requiring no machining of the flywheel face. Replaces OE clutch references: 002225600, 014-KT296, 201-17184, 201-17184E and 20 more. AISIN drivetrain components are dynamometer-verified for torque capacity before leaving the factory and are supplied with installation lubricant and alignment tools in the kit. Clutch lifespan varies widely — from 30,000 miles in heavy urban traffic to 100,000+ miles with smooth driving habits — but any manual-gearbox vehicle will eventually need a clutch replacement. Common symptoms of clutch wear include a slipping clutch (engine revs rising without a corresponding increase in speed), a biting point that has moved high in the pedal travel, judder when pulling away, and difficulty selecting gears. Clutch replacement is a significant job that requires gearbox removal — most DIY mechanics will need a transmission jack, an engine support bar, and a full set of sockets; allow a full day for the work. Always replace the complete clutch kit (disc, pressure plate, and release bearing) together — fitting only one component means the gearbox must be removed again when the remaining parts wear out shortly afterwards. Addressing clutch slip early prevents flywheel damage from overheating — a resurfaced or replaced flywheel adds substantial cost to a job that is already labour-intensive, so prompt replacement saves money. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.