ACT 2001 Lexus IS300 HD/Perf Street Sprung Clutch Kit
The ACT TS5-HDSS is a street clutch kit for the manual Lexus IS300 with the 3.0 liter inline-six. Owners usually land here for one of three reasons: the original clutch is slipping when the car pulls hard in third or fourth, the factory dual-mass flywheel has started to rattle or shudder, or they have added bolt-ons and want a clutch with more margin that still drives like a daily car. This kit pairs ACT's Heavy Duty pressure plate with its Performance Street organic disc for exactly that use.
The IS300 five-speed came with a dual-mass flywheel that absorbs driveline vibration through internal springs. ACT's TS5 kits are built around a single-mass flywheel instead, and ACT states plainly that this kit must be used with an aftermarket single-mass flywheel, which is not included. So treat this as a clutch-and-flywheel job, not a drop-in disc swap.
Once installed, the Heavy Duty diaphragm raises clamp load so the disc holds 285 ft-lb at the crank, which ACT lists as 32 percent over the factory clutch. ACT's published specs:
Included: T021 pressure plate, 3000604 Performance Street sprung disc, RB443 release bearing, PB1004 pilot bearing and AT11 alignment tool.
Rule out hydraulics first, since a weak slave cylinder or air in the line causes poor release that looks like a worn clutch. Then road test for slip in a high gear at low RPM and full throttle. Our transmission slipping diagnosis guide covers that test, and the dual-mass flywheel failure guide explains how to check the original flywheel for free play and noise.
Our listing title says 2001, but ACT's application chart for TS5-HDSS lists the 2002, 2003, 2004 and 2005 Lexus IS300 with the 2997 cc six and the manual transmission. If you have an early car, an engine swap, or a gearbox from another Toyota, compare your old disc and spline count or send us your year and VIN before ordering. For an OE-style replacement that keeps the stock flywheel layout, look at the Exedy KTY17 kit. Other kits are in our rebuild kits section.
TS5-HDSS is the easy-driving option. The TS5-XTSS uses ACT's Xtreme plate for 350 ft-lb with a heavier pedal, and the TS5-HDR6 rigid six-pad disc is aimed at track and turbo builds.
| Brand | ACT |
| Part number | TS5-HDSS |
| Fits | ACT 2001 Lexus IS300 HD/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Lexus Is300 Hd/Perf (2001) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. ACT states the TS5-HDSS must be used with an aftermarket single-mass flywheel, which is not included in the kit.
ACT's chart lists 2002-2005 IS300 manual cars. If yours is a 2001 or has had a gearbox swap, send us the year and VIN so we can check before you order.
ACT rates it at 285 ft-lb at the crank, 32 percent more than the factory clutch, which suits a stock or bolt-on IS300.
ACT lists OE to mild gear rattle for this kit. Some extra rattle at idle is normal once the dual-mass flywheel is gone.
The single-mass flywheel, the rear main seal if it weeps, and the clutch hydraulic fluid. The release and pilot bearings are already in the kit.
