Looking for the best Cummins starter spacers to upgrade your Dodge RAM 2500/3500? We offer a selection of top-quality spacers crafted from durable billet aluminum, ensuring smooth starter engagement, precise fitment, and long-lasting reliability for your truck.
Cummins starter spacers are must-have upgrades for Dodge RAM 2500/3500 owners. They ensure smooth starter engagement and compatibility with 5.9L engines. These kits solve alignment issues between transmissions and flywheels.
Crafted from durable billet aluminum, these spacers resist rust and corrosion. They offer precise fitment for NV4500/NV5600 transmissions. Every kit includes high-strength bolts for easy installation.
Drivers love the reliable performance and long-lasting durability. These spacers turn frustrating starts into effortless cranks. With warranties included, your upgrade is risk-free—discover the perfect match for your truck today.
List of Top 10 Cummins Starter Spacers
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
NV4500 NV5600 Starter Spacer Kit with Bolts 5 Speed Compatible with Dodge RAM 2500 3500 5.9L Cummins 1994-2002 |
This product is perfect for 1994-2002 Dodge Ram 2500/3500 owners with a 5.9L Cummins engine needing a NV5600 transmission upgrade. It enables use of a 13-inch flywheel or NV4500 Dual Disc kits, replacing worn plastic spacers. |
|
![]() |
Bevinsee Starter Spacer Adapter With Bolts Compatible with Dodge RAM 2500 3500 5.9L Cummins 1994-2002 NV5600 NV4500 Black |
This starter spacer adapter is perfect for Dodge RAM 2500 or 3500 owners with a 5.9L Cummins engine from 1994 to 2002. It’s ideal for those upgrading to an NV4500 dual-disc clutch or using a 13-inch flywheel. |
|
![]() |
Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 Cummins 5.9L 1994-2002 |
This Starter Spacer Kit is perfect for Dodge Ram 2500 or 3500 owners with a 5.9L Cummins Diesel engine (non-HO) from 1994 to 2002. It’s ideal for upgrading to a 5-speed starter and NV4500 transmission while using an NV5600 6-speed flywheel. |
|
![]() |
Starter Spacer Kit with Bolts 5 Speed for Dodge Cummins 5.9L 1994~2002 NV4500 NV5600 |
This Starter Spacer Kit is perfect for Dodge Ram 2500 & 3500 owners with 5.9L Cummins Diesel engines from 1994 to 2002. It’s ideal for those upgrading to a 5-speed starter or using NV4500 or NV5600 transmissions. |
|
![]() |
Starter Spacer with Bolts Kit 5 Speed Fits for Dodge Cummins 5.9L 1994-2002 Starter Replacement Parts |
This product is perfect for Dodge Cummins 5.9L truck owners (1994-2002) upgrading to a 5-speed NV4500 starter or dual-disc clutch system. It’s ideal for those needing a durable billet aluminum spacer to match NV5600 flywheels with NV4500 transmissions. |
|
![]() |
CASTNOO Starter Spacer Kit Bolts 5 Speed Suitable for Dodge Cummins 5.9L 1994-2002 |
This starter spacer kit is perfect for Dodge Cummins 5.9L owners who want to upgrade their 5-speed transmission. It’s ideal for those using NV4500 gearboxes or NV5600 flywheels. |
|
![]() |
Bevinsee Starter Spacer with Bolts Kit 5 Speed NV4500 5.9L Cummins Compatible with Dodge RAM 2500 3500 NV5600 1994-2002 Silver |
This Bevinsee Starter Spacer Kit is perfect for Dodge RAM 2500 or 3500 owners with a 5.9L Cummins engine who want a reliable and stylish upgrade. It’s ideal for those using NV4500 or NV5600 transmissions and need a durable, precision-fit solution. |
|
![]() |
New Cat Starting Motor Spacer for Cummins Engine NT855 M11 3045499 172271 |
This starting motor spacer is perfect for Cummins engine owners who need a reliable replacement part. It’s easy to install and fits directly, making it ideal for quick repairs. |
|
![]() |
UINIEBOOM Starter Timing Spacer Kit, Timing Spacer Rebuild Kit Compatible with Dodge Cummins Turbo Diesel M/H Style D250 D350 W250 W350 1990-1993 |
This product is perfect for owners of first-gen Dodge Cummins Turbo Diesel trucks (1990-1993) needing reliable engine upgrades. It provides dynamic timing advance, reduces oil leaks, and lowers noise with lightweight, durable materials. |
|
![]() |
#US Replacement Part for Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 for Cummins 5.9L 19… lawnPart#271884 |
This starter spacer kit is perfect for Dodge Ram 2500/3500 owners with Cummins 5.9L engines (1998-2002 models). It includes 1 spacer and bolts, fits 5-speed transmissions, and ensures a quick, secure repair. |
Detailed Reviews
Discover the top 10 Cummins Starter Spacers in this expert-curated guide. Each product is handpicked for quality, performance, and value, ensuring you find the perfect fit for your needs. Whether you prioritize durability, ease of installation, or affordability, this guide has you covered—read on to make an informed choice with confidence.
1. NV4500 NV5600 Starter Spacer Kit with Bolts 5 Speed Compatible with Dodge RAM 2500 3500 5.9L Cummins 1994-2002

The NV4500 NV5600 Starter Spacer Kit is perfect for Dodge RAM 2500 & 3500 trucks. It works with 5.9L Cummins Diesel engines from 1994 to 2002. This kit fits high-output engines only.
It replaces factory parts like Cummins 3946085 and 3949583. The kit includes one starter spacer and three bolts.
This kit lets you use a 13″ flywheel in older 5-speed trucks. It’s great for NV4500 dual-disc kits and transmission upgrades. Camoo offers a 30-day refund and 12-month warranty.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for 1994-2002 Dodge Ram 2500/3500 owners with a 5.9L Cummins engine needing a NV5600 transmission upgrade. It enables use of a 13-inch flywheel or NV4500 Dual Disc kits, replacing worn plastic spacers.
Ready to Purchase?
2. Bevinsee Starter Spacer Adapter With Bolts Compatible with Dodge RAM 2500 3500 5.9L Cummins 1994-2002 NV5600 NV4500 Black

The Bevinsee Starter Spacer Adapter fits Dodge RAM 2500/3500 trucks with 5.9L Cummins engines. It’s made from premium billet aluminum for lightweight strength and durability.
This adapter uses CNC technology for precise alignment and works with NV4500 starters and transmissions. It allows pairing an NV5600 flywheel with dual disc clutches or 13″ upgrades, replacing the factory plastic spacer.
The adapter resists rust and corrosion thanks to anodization. Installation is straightforward. It ensures a direct, secure fit for reliable performance.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This starter spacer adapter is perfect for Dodge RAM 2500 or 3500 owners with a 5.9L Cummins engine from 1994 to 2002. It’s ideal for those upgrading to an NV4500 dual-disc clutch or using a 13-inch flywheel.
Ready to Purchase?
3. Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 Cummins 5.9L 1994-2002

This Starter Spacer Kit fits 1994-2002 Dodge Ram 2500/3500 trucks with 5.9L Cummins non-HO engines. It lets you use a 5-speed starter with an NV5600 flywheel. The kit includes a spacer and three high-strength bolts.
Upgrade Design solves compatibility issues between NV4500 transmissions and 6-speed flywheels. Durable Material ensures long life with corrosion-resistant billet aluminum and anodized finish.
100% Satisfaction Guaranteed with easy returns and a 12-month warranty. Direct Fit replaces Cummins part numbers 3946085 and 3949583 seamlessly.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Starter Spacer Kit is perfect for Dodge Ram 2500 or 3500 owners with a 5.9L Cummins Diesel engine (non-HO) from 1994 to 2002. It’s ideal for upgrading to a 5-speed starter and NV4500 transmission while using an NV5600 6-speed flywheel.
Ready to Purchase?
4. Starter Spacer Kit with Bolts 5 Speed for Dodge Cummins 5.9L 1994~2002 NV4500 NV5600

This Starter Spacer Kit is perfect for 1994–2002 Dodge Ram 2500 & 3500 trucks with 5.9L Cummins Diesel engines. It includes one spacer and three bolts, ensuring smooth starter engagement with your NV4500 or NV5600 transmission.
High-quality aluminum makes it durable and rust-free. Easy to install, it saves time and effort. 30-day refund and 12-month warranty included for risk-free purchase.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Starter Spacer Kit is perfect for Dodge Ram 2500 & 3500 owners with 5.9L Cummins Diesel engines from 1994 to 2002. It’s ideal for those upgrading to a 5-speed starter or using NV4500 or NV5600 transmissions.
Ready to Purchase?
5. Starter Spacer with Bolts Kit 5 Speed Fits for Dodge Cummins 5.9L 1994-2002 Starter Replacement Parts

Upgrade your Dodge Cummins starter with this Starter Spacer with Bolts Kit. It’s designed for 1994-2002 Ram 2500 & 3500 trucks with 5.9L Cummins Diesel engines. This kit works with 5-speed NV4500 transmissions and NV5600 flywheels.
Made from high-quality billet aluminum, this kit is rust-proof and durable. It’s better than factory plastic parts and built to last. The anodized finish adds extra protection.
Installation is simple and quick. Just remove the old spacer, install the new one, and secure it with 3 bolts. It brings the ring gear into perfect contact with the starter for smooth operation.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for Dodge Cummins 5.9L truck owners (1994-2002) upgrading to a 5-speed NV4500 starter or dual-disc clutch system. It’s ideal for those needing a durable billet aluminum spacer to match NV5600 flywheels with NV4500 transmissions.
Ready to Purchase?
6. CASTNOO Starter Spacer Kit Bolts 5 Speed Suitable for Dodge Cummins 5.9L 1994-2002

The CASTNOO Starter Spacer Kit is a high-quality upgrade for your Dodge Cummins 5.9L (1994-2002). It’s made from CNC billet aluminum, ensuring it’s corrosion-resistant, rust-proof, and built to last.
This kit works with 5-speed starters and NV4500 gearboxes, fitting NV5600 flywheels and NV4500 dual discs. Installation is simple: use 3 bolts to place the gasket between the ring gear and starter.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This starter spacer kit is perfect for Dodge Cummins 5.9L owners who want to upgrade their 5-speed transmission. It’s ideal for those using NV4500 gearboxes or NV5600 flywheels.
Ready to Purchase?
7. Bevinsee Starter Spacer with Bolts Kit 5 Speed NV4500 5.9L Cummins Compatible with Dodge RAM 2500 3500 NV5600 1994-2002 Silver

The Bevinsee Starter Spacer Kit is a must-have upgrade for your Dodge RAM 2500 or 3500. It’s compatible with 5.9L Cummins engines and works with NV4500 and NV5600 transmissions.
Made from high-quality aluminum, it’s lightweight yet sturdy. The anodized finish adds corrosion resistance and a sleek look. It handles bad weather with ease.
Precision machining ensures a perfect fit for secure installation. It allows using the NV4500 starter with an NV5600 flywheel. Also works as a direct replacement for the factory plastic spacer.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Bevinsee Starter Spacer Kit is perfect for Dodge RAM 2500 or 3500 owners with a 5.9L Cummins engine who want a reliable and stylish upgrade. It’s ideal for those using NV4500 or NV5600 transmissions and need a durable, precision-fit solution.
Ready to Purchase?
8. New Cat Starting Motor Spacer for Cummins Engine NT855 M11 3045499 172271

The New Cat Starting Motor Spacer is a direct replacement for Cummins Engine NT855 and M11 models. It’s made of durable metal and comes in a sleek silver color.
Easy to install, fits perfectly, and works reliably. One-year warranty included for peace of mind.
With part numbers 3045499 and 172271, this spacer ensures your engine starts smoothly. Trust in quality for your Cummins engine needs.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This starting motor spacer is perfect for Cummins engine owners who need a reliable replacement part. It’s easy to install and fits directly, making it ideal for quick repairs.
Ready to Purchase?
9. UINIEBOOM Starter Timing Spacer Kit, Timing Spacer Rebuild Kit Compatible with Dodge Cummins Turbo Diesel M/H Style D250 D350 W250 W350 1990-1993

The UINIEBOOM Timing Spacer Kit fits 1990–1993 Dodge Cummins turbo diesel trucks. It helps advance timing on the VE injection pump for better performance.
This kit uses high-quality aluminum and rubber for durability. It keeps your engine smooth and reduces noise. You’ll enjoy a quieter ride and stronger low-end power.
The kit includes all parts needed for installation. It helps prevent oil leaks and maintains engine health. If issues arise, contact the seller for quick support.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for owners of first-gen Dodge Cummins Turbo Diesel trucks (1990-1993) needing reliable engine upgrades. It provides dynamic timing advance, reduces oil leaks, and lowers noise with lightweight, durable materials.
Ready to Purchase?
10. #US Replacement Part for Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 for Cummins 5.9L 19… lawnPart#271884

This replacement part is for a starter spacer kit with bolts. It fits 5-speed models of Dodge Ram 2500 and 3500 with a Cummins 5.9L engine.
The color is silver. It comes in a small package, measuring 6.3×5.31×1.3 inches. You get 1 piece in the package.
Always check compatibility before buying. Look at photos and model details to ensure it fits your vehicle. This part is specific to certain models, so double-check before ordering.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This starter spacer kit is perfect for Dodge Ram 2500/3500 owners with Cummins 5.9L engines (1998-2002 models). It includes 1 spacer and bolts, fits 5-speed transmissions, and ensures a quick, secure repair.
Ready to Purchase?
Buying Guide
Cummins starter spacers fix alignment issues and ensure smooth starts. They are essential for Dodge RAM 2500/3500 owners with 5.9L engines.
- Compatibility: Ensure the spacer matches your truck’s make, model, and engine. Works with NV4500/NV5600 transmissions and 5.9L Cummins engines from 1994–2002.
- Material Quality: Choose billet aluminum for rust resistance and durability. Avoid plastic parts for long-term use.
- Installation Ease: Kits include high-strength bolts and clear instructions. Look for direct-fit designs to save time.
- Performance Benefits: Solves starter engagement issues and allows upgrades like 13″ flywheels or dual-disc clutches.
- Warranty & Returns: Check for 12-month warranties and 30-day refund policies. Brands like Camoo and Bevinsee offer solid coverage.
- Design Precision: CNC-machined spacers ensure perfect alignment. Anodized finishes add corrosion protection and a sleek look.