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Cummins Exhaust Manifold Bolt - 89-98 5.9L Cummins - 3944593

Thoroughbred Sku #: CUM3944593
Manufacturer Sku #: 3944593

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Notes: Sold individually, 12 required per manifold for a complete set.


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Product Details

Product Name: Cummins Exhaust Manifold Bolt
Manufacturer: Cummins
Manufacturer Part #: 3944593
Thoroughbred Diesel Part #: CUM3944593
Fitment Notes: 1989-1998 5.9L Cummins

Choose the Cummins 3944593 Exhaust Manifold Bolt to replace a failed component in your 1994-1998 Dodge 5.9L Cummins. Manufactured from only the best quality materials, you can trust this part to be a durable replacement. Cummins products deliver legendary performance that is unmatched. Featuring a direct-fit design, Cummins OE parts ensure that your engine maintains factory running conditions.


  • Direct-Fit Replacement
  • Maintains Factory Fit & Performance
  • Constructed From High-Quality Materials

Notes: Sold individually, 12 required per manifold for a complete set.

OEM Numbers:

  • Cummins: 3901448, 3944593
  • Komatsu: 6732115860

Thoroughbred Diesel is your source of diesel stock parts for your Dodge Diesel. We are also a real diesel repair shop that works on diesel trucks for free advice call toll free at 866-737-4966 or shop now for 1989-1998 Dodge Diesel Exhaust Manifold. At Thoroughbred Diesel we specialize in stock parts for Dodge Cummins Diesels Trucks so save big bucks by shopping for replacement stock parts at


  • will these work on a 99 24 valve?

    Pike | 6/5/2019

    Yes, you will need 11 of these and 1 3944655 for the stud.

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