MS1-XXR4 kit features a MaXX pressure plate for the serious enthusiast. ACT MaXX pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.
WarrantyThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987 | Chrysler | Conquest | Base |
| 1988-1989 | Chrysler | Conquest | TSi |
| 1988 | Mitsubishi | Starion | ESi |
| 1987-1989 | Mitsubishi | Starion | ESi-R |
| Brand | ACT |
|---|---|
| Type | Clutch Kits - Single |
| SKU | ACTMS1-XXR4 |
| Weight | 18.3 lb |
| Make | Chrysler, Mitsubishi |
| Model | Conquest, Starion |
| Mfr. Part # | MS1-XXR4 |
| Torque capacity | 625 ft-lbs (at the crank) |
| Torque capacity over stock | 156% |
| Pressure plate type | Maxx Xtreme |
| Disc material | Ceramic |
| Disc diameter | 9.4 in (240 mm) |
| Input shaft diameter | 1 in |
| Weight | 14.8 lb |
| Recommended use | Recommended for race use only |
| Feel | Heavy to very heavy pedal effort, aggressive engagement, quickest shifts, increased gear rattle |
Fits 1987–1989 Chrysler Conquest; 1987–1989 Mitsubishi Starion
Always confirm engine, transmission and chassis before ordering. Call us if you are unsure.
Shipping: Some items may qualify for free shipping with Local Pickup in store. All orders have a 2–3 business day processing time. Some orders may have extended shipping times based on current stock status — we'll confirm the lead time at order placement.
Returns: Accepted within 30 days of delivery for unused product in original packaging. Returns are subject to a 25% Restocking Fee. Special-order and custom-built items are final sale.
Warranty: All products carry the manufacturer's full warranty. Coverage is honored through PMD as your authorized dealer.
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