Product Description
The Valair QNV45DDSN is the proven Quiet Street Dual Disc for NV4500-equipped Cummins trucks—built to hold big power without the typical floater rattle when the pedal is down. Rated for up to 650 HP / 1,200 ft-lbs, this ceramic dual disc delivers fast shifts with a 3,800 lb pressure plate and a nodular dual-disc flywheel.
Why This Clutch
- Quiet floater design — drive straps eliminate floater plate rattle when the clutch is depressed.
- Serious holding power — ceramic facings, 650 HP / 1,200 ft-lbs capability.
- Street-friendly — diaphragm style pressure plate for quick shifts; engagement is assertive but manageable.
- Complete kit — new nodular sprung-hub dual-disc flywheel, 3,800# pressure plate, ceramic discs, release bearing, HD pilot bearing, modified clutch fork, bolt kit, starter spacer, alignment tool.
Fitment
1994–2003 Dodge Ram 2500/3500 w/ 5.9L Cummins and NV4500 5-speed manual transmission (12-valve 1994–1998, 24-valve 1998.5–2002, and early 2003 NV4500 trucks).
Input shaft note: All Valair street dual discs come standard with 1.375" (1-3/8") hubs. Trucks originally equipped with a 1.250" (1-1/4") input shaft must upgrade to 1-3/8" (see Cross-Reference below).
Recommended Use
- High-performance street, tuning, compounds/single turbo builds up to 650 HP.
- Light towing acceptable; expect firmer engagement than stock.
What’s Included
- Nodular iron sprung-hub dual-disc flywheel
- 3,800 lb diaphragm pressure plate
- Ceramic dual discs
- Release (throwout) bearing & HD pilot bearing
- Modified clutch fork, bolt kit, starter spacer, and alignment tool
Installation & Break-In
- Follow strap-orientation instructions carefully on quiet (strapped) kits.
- Typical street dual-disc break-in: ~500 miles of stop-and-go/low-load driving.
Warranty
Valair street dual discs: 12 months / 12,000 miles limited warranty (manufacturer terms apply).
Cross-Reference & Alternatives
- Input Shaft Upgrade (required for 1-1/4"): VA1.375K (NV4500 1-3/8" upgrade kit)
- Flywheel (5-speed): V3433 (dual-drilled 12.25"/13.00")
- Organic Quiet Dual Disc (more street-smooth): QNV45DDSN-ORG
- Hydraulic Upgrade: Valair/NV4500 heavy-duty hydraulics (recommended with dual discs)
- Related Categories: Valair, NV4500 Clutch Kits, Clutch Hydraulics
Helpful Notes
- This “Quiet” version reduces floater plate rattle when the pedal is depressed; it does not eliminate normal diesel gear rollover noise at idle.
- Verify NV4500 application on 2003 models; most 2003 Cummins trucks shipped with NV5600 (6-spd).
