NS4-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty 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 6-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 6-pad rigid race disc, engagement is harsher, but shifting is faster. The 6-pad rigid race disc is recommended for larger clutch sizes to absorb more heat.
Warranty| Brand | ACT |
|---|---|
| Type | Clutch Kits - Single |
| SKU | ACTNS4-HDR6 |
| Weight | 17.5 lb |
| Mfr. Part # | NS4-HDR6 |
| Torque capacity | 390 ft-lbs (at the crank) |
| Torque capacity over stock | 74% |
| Pressure plate type | Heavy Duty |
| Disc material | Ceramic |
| Disc diameter | 8.8 in (224 mm) |
| Input shaft diameter | 1 in |
| Weight | 14.0 lb |
| Recommended use | Recommended for race use only |
| Feel | Light to moderate pedal effort, aggressive engagement, increased gear rattle |
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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