VALAIR V2151 STARTER SPACER KIT 94–04 DODGE RAM DIESEL

The Valair V2151 Starter Spacer Kit corrects starter-to-flywheel engagement when you run an NV5600 6-speed flywheel on an NV4500 5-speed truck—a common requirement with certain dual-disc conversions. Includes spacer and hardware for a clean, bolt-on install.

Fitment

• 1994–2004 Dodge Ram 2500/3500, 5.9L Cummins, NV4500 5-speed
• Use when installing an NV5600 flywheel on an NV4500-equipped truck to ensure proper starter pinion depth.

Note: The spacer is typically used with NV4500 dual-disc kits or NV5600 flywheel conversions. Verify transmission before ordering.

What’s Included

• Starter spacer block
• Mounting bolts

Recommended Supporting Parts

• ARP Flywheel Bolt Kit (’89–’04 Cummins): ARP 147-2802
• South Bend NV5600 Flywheel (’00.5–’05.5 HO): 1670104-6
• NV4500 Heavy Tow Dual Disc Kit (example NV4500 package).
  
• CPP Extreme Duty NV4500 1.375" Input Shaft (dual-disc upgrade): CPP NV4500 Input Shaft

Cross-Reference / Alternatives

• CPP V2151 Starter Spacer (house brand alternative): CPP V2151
• Browse NV5600 clutch kits (if you are converting): NV5600 Clutches
• Browse NV4500 clutch kits: NV4500 Clutches

FAQ

Any time you install an NV5600 flywheel onto an NV4500 truck, the starter depth changes. This spacer restores the correct pinion/flywheel engagement to prevent grinding or premature wear.

Yes—spacer and bolts are included for a direct bolt-on install.

No. It’s designed for manual NV4500 trucks converting to an NV5600-style flywheel.

We recommend new flywheel bolts and, if upgrading to a dual disc, a 1.375" input shaft.