Best 5.9L Cummins Engine Starter Spacers

Looking for the best 5.9L Cummins engine starter spacers? We’ve got you covered with a guide to the top 10 options for a smooth and efficient upgrade.

Upgrading your 5.9L Cummins engine starts with the right parts. A starter spacer kit is key for smooth performance. This guide highlights the best options for your Dodge Ram.

These kits fit perfectly, last long, and boost efficiency. They are easy to install and work great. You’ll see better starts and less wear.

Discover top-rated starter spacers that match your needs. Whether for daily drives or heavy-duty tasks, we’ve got you covered. Let’s find the perfect fit for your engine!

List of Top 10 5.9L Cummins Engine Starter Spacers

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 NV4500 NV5600 Starter Spacer Kit is perfect for Dodge Ram 2500 & 3500 owners with a 5.9L Cummins Diesel engine from 1994 to 2002. It’s ideal for those upgrading to a 13″ flywheel or converting transmissions.	View on Amazon (paid link)
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.	View on Amazon (paid link)
Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 Cummins 5.9L 1994-2002	This product is perfect for owners of 1994-2002 Dodge Ram 2500 3500 trucks with 5.9L Cummins Diesel engines. It’s ideal for those upgrading to a 5-speed starter or NV4500 transmission while using a NV5600 flywheel.	View on Amazon (paid link)
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 owners with 1994-2002 2500 or 3500 trucks and a 5.9L Cummins Diesel engine. It’s essential for using a 5-speed starter with an NV5600 flywheel.	View on Amazon (paid link)
Starter Spacer with Bolts Kit 5 Speed Fits for Dodge Cummins 5.9L 1994-2002 Starter Replacement Parts	This Starter Spacer with Bolts Kit is perfect for Dodge Cummins 5.9L owners who need a reliable starter replacement. It’s ideal for 1994-2002 Ram 2500 & 3500 trucks with 5-speed transmissions and NV4500 Dual Disc clutches.	View on Amazon (paid link)
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 (1994-2002) who want to upgrade to a 5-speed NV4500 starter and NV4500 dual disc clutch. It’s easy to install and built to last.	View on Amazon (paid link)
Bevinsee Starter Spacer with Bolts Kit 5 Speed NV4500 5.9L Cummins Compatible with Dodge RAM 2500 3500 NV5600 1994-2002 Silver	This starter spacer kit is perfect for Dodge RAM 2500/3500 owners with 5.9L Cummins engines needing a durable, precise fit. It works great for those upgrading to an NV5600 flywheel or using a dual disc clutch. The lightweight aluminum and corrosion-resistant design make it ideal for tough conditions.	View on Amazon (paid link)
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 comes with a 1-year warranty, making it ideal for anyone looking to keep their engine running smoothly.	View on Amazon (paid link)
OWNDR Engine Air Intake Connection Spacer Fit for Dodge Ram 2500 3500 Cummins L6 5.9L Turbo Diesel 1994-2006	This product is perfect for Dodge Ram 2500/3500 owners (1994-2006) with 5.9L Cummins turbo diesel engines needing a durable, high-heat-resistant air intake spacer. It reduces vibration and noise, fits common replacement models, and ensures reliable engine performance.	View on Amazon (paid link)
Engine Air Intake Connection Spacer Fit for 1994-2009 Dodge Ram Cummins 12v ISB QSB 5.9L 2500 3500 Truck L6 5.9L, Replace 5266557 3969987 4762012AB 5086720AC 05086720AC Turbo Diesel	This Engine Air Intake Connection Spacer is perfect for Dodge Ram 2500 and 3500 truck owners with a 5.9L Turbo Diesel engine from 1994 to 2009. It’s ideal for those upgrading their turbo or intercooler and needing extra space for better fit.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 starter spacers for your 5.9L Cummins engine, handpicked for performance and durability. Each product is expert-reviewed and customer-approved, ensuring you get the best value for your upgrade. Find the perfect fit to enhance your engine’s reliability and efficiency today!

1. NV4500 NV5600 Starter Spacer Kit with Bolts 5 Speed Compatible with Dodge RAM 2500 3500 5.9L Cummins 1994-2002

This starter spacer kit fits 1994–2002 Dodge Ram 2500/3500 trucks with 5.9L Cummins engines. It lets you use an NV4500 5-speed starter with an NV5600 6-speed flywheel.

The kit replaces factory plastic spacers and includes a durable metal spacer plus three mounting bolts. It matches OEM numbers 3946085 and 3949583 for easy installation. Perfect for upgrades using 13″ flywheels or dual-disc kits.

Use it to convert older trucks to NV5600 transmissions with 13″ flywheels. Works for 1994–2002 models and early 2003–2005 automatic-to-manual swaps. Backed by a 30-day return policy and 12-month warranty.

Pros	Cons
Fits Dodge RAM 2500/3500 with 5.9L Cummins (1994-2002). Replaces OEM parts with starter spacer and bolts. Enables NV4500 starter use with NV5600 flywheel. Direct replacement for factory plastic spacer. Guaranteed satisfaction with 30-day refund and 12-month warranty.	Limited Compatibility: Not suitable for non-high output engines or newer models. Specific Setup Required: Needs NV4500 Dual Disc or 13″ flywheel for proper function.

Perfect For:

This NV4500 NV5600 Starter Spacer Kit is perfect for Dodge Ram 2500 & 3500 owners with a 5.9L Cummins Diesel engine from 1994 to 2002. It’s ideal for those upgrading to a 13″ flywheel or converting transmissions.

Ready to Purchase?

View Price on Amazon (paid link)

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 is compatible with Dodge RAM 2500 and 3500 models. It works with 5.9L Cummins engines from 1994 to 2002. This kit includes bolts for easy installation.

Made from high-quality aluminum, it’s lightweight yet sturdy. The CNC technology ensures precise fit and accuracy. It’s also corrosion-resistant, lasting longer in tough conditions.

This kit allows using the NV4500 starter with an NV5600 flywheel. It’s perfect for NV4500 dual-disc clutches or 13-inch upgrades. It can also replace the factory plastic spacer on the NV5600.

Pros	Cons
Lightweight, sturdy aluminum for durable performance. CNC precision ensures a perfect fit every time. Rust-resistant finish for long-lasting reliability. Versatile use with NV4500 and NV5600 setups. Direct factory replacement for easy installation.	Limited Compatibility: Only fits specific Dodge RAM models and transmissions. No Installation Tools: Does not include bolts or hardware for setup. Niche Use Case: Not needed for most standard transmission setups.

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?

View Price on Amazon (paid link)

3. Starter Spacer Kit with Bolts 5 Speed for Dodge Ram 2500 3500 Cummins 5.9L 1994-2002

The Starter Spacer Kit is perfect for 1994-2002 Dodge Ram 2500/3500 trucks with 5.9L Cummins Diesel engines. It fits non-High Output (HO) models and works with 5-speed starters and NV4500 transmissions.

This kit lets you upgrade to a NV5600 6-speed flywheel while using your 5-speed starter. It includes one starter spacer and three strong mounting bolts, replacing Cummins parts 3946085 and 3949583.

Made from aircraft-grade aluminum, it’s durable, rust-proof, and long-lasting. Enjoy a 30-day refund guarantee and a 12-month warranty for risk-free buying.

Pros	Cons
Fits perfectly on 1994-2002 Dodge Ram 2500/3500 trucks. Upgrades your starter and transmission for better performance. High-quality aluminum ensures long-lasting durability. Easy installation with included bolts and spacer. Risk-free purchase with a 30-day refund guarantee.	Not for HO engines, check your truck’s specs before buying. Limited compatibility, only fits 1994-2002 Dodge Ram models. No installation tools, you’ll need to source them separately.

Perfect For:

This product is perfect for owners of 1994-2002 Dodge Ram 2500 3500 trucks with 5.9L Cummins Diesel engines. It’s ideal for those upgrading to a 5-speed starter or NV4500 transmission while using a NV5600 flywheel.

Ready to Purchase?

View Price on Amazon (paid link)

4. Starter Spacer Kit with Bolts 5 Speed for Dodge Cummins 5.9L 1994~2002 NV4500 NV5600

The Starter Spacer Kit is perfect for 1994-2002 Dodge Ram trucks with 5.9L Cummins engines. It includes a spacer and bolts, ensuring your starter works smoothly.

Made from high-quality aluminum, it’s durable and rust-free. Easy to install, it saves time and effort. Satisfaction guaranteed with a 30-day refund and 12-month warranty.

Pros	Cons
Perfect fit for 1994–2002 Dodge Cummins trucks. Durable aluminum resists rust and corrosion. Ensures proper starter engagement with flywheel. Easy installation with included bolts. 12-month warranty and 30-day refund guarantee.	Not for High Output engines, check your Cummins type first. Limited compatibility, only fits specific Dodge Ram models. No installation tools included, you’ll need your own.

Perfect For:

This Starter Spacer Kit is perfect for Dodge Ram owners with 1994-2002 2500 or 3500 trucks and a 5.9L Cummins Diesel engine. It’s essential for using a 5-speed starter with an NV5600 flywheel.

Ready to Purchase?

View Price on Amazon (paid link)

5. Starter Spacer with Bolts Kit 5 Speed Fits for Dodge Cummins 5.9L 1994-2002 Starter Replacement Parts

The Starter Spacer with Bolts Kit is perfect for 1994–2002 Dodge Cummins 5.9L trucks. It lets you use a 5-speed starter with an NV5600 flywheel and NV4500 transmission.

Made from high-quality billet aluminum, it’s rust-proof and durable. Installation is simple: remove the old spacer, add the new one, and secure with three bolts.

Pros	Cons
Fits perfectly for 1994-2002 Dodge Cummins 5.9L trucks. Durable billet aluminum resists rust and corrosion. Easy 3-bolt install saves time and effort. Upgrades starter compatibility with NV5600 flywheels.	Not for High Output engines or other truck models. Requires removing the starter for installation. Limited to specific transmission and flywheel combinations.

Perfect For:

This Starter Spacer with Bolts Kit is perfect for Dodge Cummins 5.9L owners who need a reliable starter replacement. It’s ideal for 1994-2002 Ram 2500 & 3500 trucks with 5-speed transmissions and NV4500 Dual Disc clutches.

Ready to Purchase?

View Price on Amazon (paid link)

6. CASTNOO Starter Spacer Kit Bolts 5 Speed Suitable for Dodge Cummins 5.9L 1994-2002

The CASTNOO Starter Spacer Kit is perfect for Dodge Cummins 5.9L (1994-2002). It’s made from high-quality CNC billet aluminum, ensuring it’s durable and long-lasting.

This kit works with 5-speed starters and NV4500 gearboxes. It fits NV5600 flywheels and NV4500 dual discs.

Installation is simple and quick. Use 3 bolts to secure the gasket. If you have questions or issues, our team is here to help.

Pros	Cons
High-quality CNC billet aluminum ensures durability and long life. Easy installation with just 3 bolts for a perfect fit. Compatible with NV4500 and NV5600 for seamless upgrades. Corrosion-resistant and rust-proof for reliable performance. Quick support available for hassle-free assistance.	Limited compatibility with NV4500/NV5600 systems only. Aluminum construction may wear faster than steel alternatives.

Perfect For:

This starter spacer kit is perfect for Dodge Cummins 5.9L owners (1994-2002) who want to upgrade to a 5-speed NV4500 starter and NV4500 dual disc clutch. It’s easy to install and built to last.

Ready to Purchase?

View Price on Amazon (paid link)

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 made from high-quality aluminum. It’s lightweight yet strong. Perfect for Dodge RAM 2500 and 3500 models.

This kit has a sleek, stylish look. It resists corrosion in bad weather. Fits NV4500 and NV5600 transmissions well.

It’s a direct replacement for factory parts. Works with 5-speed starters and dual-disc clutches. Easy to install and built to last.

Pros	Cons
Lightweight, sturdy aluminum for durable performance. Sleek, corrosion-resistant finish for all-weather use. Precision fit ensures secure, hassle-free installation. Direct replacement for factory plastic spacer.	Not universal: Only fits specific Dodge RAM models and transmissions. No installation tools: Requires additional tools for setup, not included. Limited color options: Only available in silver, may not match all styles.

Perfect For:

This starter spacer kit is perfect for Dodge RAM 2500/3500 owners with 5.9L Cummins engines needing a durable, precise fit. It works great for those upgrading to an NV5600 flywheel or using a dual disc clutch. The lightweight aluminum and corrosion-resistant design make it ideal for tough conditions.

Ready to Purchase?

View Price on Amazon (paid link)

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.

This spacer is easy to install, saving you time and effort. It fits perfectly with part numbers 3045499 and 172271. The manufacturer warranty covers it for one year.

With its reliable design, this spacer ensures your engine starts smoothly. It’s a cost-effective solution for your Cummins engine needs. Upgrade your vehicle with confidence today!

Pros	Cons
1-Year Warranty ensures peace of mind with your purchase. Direct Replacement fits Cummins engines perfectly, no hassle. Easy Installation saves time and effort for quick repairs. Durable Metal construction guarantees long-lasting performance.	No included tools for easy installation. Limited color option: only silver. Specific fitment may not suit all engines.

Perfect For:

This starting motor spacer is perfect for Cummins engine owners who need a reliable replacement part. It’s easy to install and comes with a 1-year warranty, making it ideal for anyone looking to keep their engine running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

9. OWNDR Engine Air Intake Connection Spacer Fit for Dodge Ram 2500 3500 Cummins L6 5.9L Turbo Diesel 1994-2006

The OWNDR Engine Air Intake Connection Spacer is perfect for Dodge Ram 2500 and 3500 trucks. It fits Cummins L6 5.9L Turbo Diesel engines from 1994 to 2006. This spacer is built tough to handle high heat and pressure.

It reduces engine noise and vibrations for a smoother ride. Always check if it fits your truck before buying.

Pros	Cons
Fits 1994-2006 Dodge Ram 2500/3500 5.9L Turbo Diesel engines Direct replacement for OEM models 5266557, 3969987, and more Durable metal construction withstands high-temperature, high-pressure environments Reduces engine vibrations and noise during operation	Not compatible with all Dodge Ram 2500/3500 models Metal construction may not suit engines requiring rubber gaskets Limited replacement coverage for non-listed OEM part numbers

Perfect For:

This product is perfect for Dodge Ram 2500/3500 owners (1994-2006) with 5.9L Cummins turbo diesel engines needing a durable, high-heat-resistant air intake spacer. It reduces vibration and noise, fits common replacement models, and ensures reliable engine performance.

Ready to Purchase?

View Price on Amazon (paid link)

10. Engine Air Intake Connection Spacer Fit for 1994-2009 Dodge Ram Cummins 12v ISB QSB 5.9L 2500 3500 Truck L6 5.9L, Replace 5266557 3969987 4762012AB 5086720AC 05086720AC Turbo Diesel

Engine Air Intake Connection Spacer Fit for 1994-2009 Dodge Ram Cummins 12v ISB QSB 5.9L 2500 3500 Truck L6 5.9L, Replace 5266557 3969987 4762012AB 5086720AC 05086720AC Turbo Diesel

Upgrade your Dodge Ram’s performance with this engine air intake connection spacer. It’s designed for 1994-2009 models with a 5.9L Cummins engine, ensuring a perfect fit.

Made from high-quality aluminum alloy, this spacer is durable and heat-resistant. It includes sealing gaskets to prevent air leaks, boosting engine efficiency.

Easy to install, no extra tools needed. Improves airflow, reduces lag, and enhances engine response.

Pros	Cons
Boosts engine response and airflow efficiency. Durable aluminum alloy resists heat and deformation. Easy install, no extra tools or skills needed. Seals tight, prevents leaks for smooth performance.	Not universal: Only fits specific Dodge Ram models. No heater: Removes cold start function, not ideal for cold climates. Modification needed: Requires additional spacing for turbo or intercooler changes.

Perfect For:

This Engine Air Intake Connection Spacer is perfect for Dodge Ram 2500 and 3500 truck owners with a 5.9L Turbo Diesel engine from 1994 to 2009. It’s ideal for those upgrading their turbo or intercooler and needing extra space for better fit.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Upgrading your 5.9L Cummins engine starts with the right starter spacer kit. These kits ensure smooth performance and better starts. Let’s find the perfect fit for your Dodge Ram!

Factors to Consider When Buying a Starter Spacer Kit

Compatibility:
Make sure the kit fits your Dodge Ram model and engine type. Check the year range and transmission for a perfect match.
Material:
Look for high-quality aluminum or billet aluminum. These materials are durable, rust-proof, and long-lasting.
Ease of Installation:
Choose a kit with included bolts and clear instructions. This makes installation quick and hassle-free.
Warranty and Returns:
Opt for kits with a warranty and return policy. This ensures risk-free buying and peace of mind.
Purpose:
Decide if it’s for daily drives or heavy-duty tasks. Some kits are better for upgrades or specific transmissions.
Price and Value:
Compare prices and features. Look for affordable options that offer great value without compromising quality.

Top Picks for 5.9L Cummins Starter Spacers

NV4500 NV5600 Starter Spacer Kit
Perfect for 1994–2002 Dodge Ram 2500/3500. Includes metal spacer and bolts. Great for NV5600 transmission upgrades.
Bevinsee Starter Spacer Adapter
Made from high-quality aluminum. Fits 1994–2002 models. Ideal for NV4500 dual-disc clutches.
Starter Spacer Kit with Bolts (5 Speed)
Works with 5-speed starters and NV4500 transmissions. Made from aircraft-grade aluminum.
CASTNOO Starter Spacer Kit
Durable CNC billet aluminum construction. Fits NV5600 flywheels and NV4500 dual discs.

Upgrade your engine with confidence and enjoy smoother starts today!