Dodge NV4500 Transmission Updated Rebuild Kit w/ Synchros Mainshaft 5th Gear Nut


BK308AWS 334672D 334585-2A 334795K 334271K

Standard Transmission Kit

Rigid Axle

+ -

Dodge 4WD NV4500 Rebuild Package with Main Shaft

  Product Images

Dodge NV4500 Transmission Rebuild kit with Main Shaft, 5th Gear, Updated Nut, and Bearing Kit
Dodge NV4500 Transmission Rebuild Bearing kit
Dodge NV4500 Transmission Main Shaft, 5th Gear, and Updated Nut


Package Includes:

(1) Bearing, Gasket, and Seal Rebuild Kit
(Includes New Middle Fiber-Lined Syncro Rings)
(1) 4WD Updated Fully Splined Main Shaft
(1) 5th Gear
(1) Updated Main Shaft Nut
(1) Complete Needle Bearing Kit

- This rebuild kit fixes your 5th Gear Issues! Dodge Diesel applications are known for making enough power to eventually work the 5th gear nut loose on the mainshaft, causing the loss of 5th gear. If this is the bind you are in, update with this kit and never worry again. Our kit comes with an all new Updated, Fully Splined Main Shaft, and the new and improved 5th Gear Nut. Our 5th Gear Nut comes with (2) set screws that thread into our New Main Shaft. You'll never have to worry about the nut backing off again!

- NV4500 transmissions have an iron case and an aluminum top cover. Typical casting numbers on the case include C-18157 and C-23167. Let us know if you need help identifying what transmission you have.

- Transtar Industries is know for producing the highest quality OEM rebuild kits for transmissions and transfer cases. No one on the market produces kits as complete as a Transtar kit. We are bringing the public access to the best parts in the world. Don't look any further, and order a Transtar kit for your build today!

- Message us with fitment questions!


  • 1994-Up Dodge Ram 4WD Diesel Trucks


  • Part Type: Transmission Rebuild Package
  • Transmission Model: NV4500
  • Interchange Numbers: 27173 18164

  Manufacturers Info


  - Transtar Industries

Transtar Industries is the global leader in transmission and driveline-related solutions. We are dedicated to providing our customers with outstanding service, offering the broadest product catalog and best-in-class distribution of quality OE and aftermarket parts and premium remanufactured products.

Transtar was founded 1975 in Cleveland, Ohio, where the company is still headquartered today. In four decades, we have grown to be a global supplier of products related to the transmission and driveline, with a comprehensive offering including automatic and standard transmission units, transmission rebuild kits and components, remanufactured torque converters, hard parts, valve bodies, differentials, and transfer case kits and components.

Using our robust distribution network of more than 100 locations throughout the domestic United States, Puerto Rico and Canada, we deliver product to more than 80 countries. Today, most customers in the continental United States receive their orders with same-day or next-day delivery. Transtar customers range from independent and franchise transmission repair shops, to production rebuilders and resellers, to full-service automotive repair businesses.

Providing high-quality, premium products from manufacturers that you trust has always been one of our main objectives. Add to that expert product knowledge and support, outstanding service and on-time delivery, it’s easy to understand why Transtar customers have enjoyed long-standing relationships with their sales representatives and the company.

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