CPP 3913638 REAR OIL SEAL HOUSING MOUNTING BOLTS — 1989–2018 CUMMINS 5.9L/6.7L (12V/24V)

Product Description

Lock down your rear main seal housing the right way with CPP’s direct-fit bolt set engineered for 1989–2018 Dodge Ram Cummins 5.9L/6.7L (12V/24V). Precision hardware delivers consistent clamp load and factory-correct fit so your rear cover and seal stay leak-free through heat cycles, towing, and boost. CPP rear main seal housing bolts, Cummins 3913638 bolts, 5.9L 6.7L 12V 24V, rear oil seal cover bolts, Cummins housing hardware, CPP Diesel bolt kit, leak fix, OE replacement fasteners

BOLTS ONLY, HOUSING NOT INCLUDED

Fitment

• 1989–1998 Dodge Ram 2500/3500 5.9L Cummins (12-valve 6BT)
• 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins (24-valve ISB)
• 2003–2007 Dodge Ram 2500/3500 5.9L Cummins (24-valve common-rail)
• 2007.5–2012 Dodge Ram 2500/3500 6.7L Cummins
• 2013–2018 Ram 2500/3500 6.7L Cummins

Note: We can ship the most common bolt spec or match to your Engine Serial Number (ESN) if you add it at checkout.

Why CPP Hardware

• OE-equivalent spec fasteners for the rear oil seal housing
• Consistent torque and clamp load for reliable sealing
• Designed for daily work trucks and performance builds

Cross-Reference / Related CPP Bolt Kits (Internal Links)

• CPP 3920400 Oil Pan Bolts (89–18 Cummins)
• CPP 5269996 Oil Cooler Housing Bolt Set (89–18 Cummins)
• CPP 3941981 Water Pump Mounting Bolts (89–18 Cummins)
• CPP 3900630 Turbo Oil Drain Mounting Bolts (89–18 Cummins)
• CPP 3925883 Oil Pickup Tube Bolts (89–18 Cummins)

FAQ

Will these bolts fit both 5.9L and 6.7L Cummins engines?

Yes—this kit covers 1989–2018 5.9L and 6.7L Cummins applications (12V and 24V). Provide your ESN if you want us to confirm the exact spec for your truck.

How many bolts are included and what position are they for?

The set is for the rear oil seal housing (rear cover). Quantity matches the housing requirements for the listed applications.

Do I need thread locker or specific torque?

Follow the Cummins service manual for torque, lubrication, and any angle spec for your ESN. We recommend surface cleaning and proper thread prep.

Are these an upgrade over used factory bolts?

Yes. Fresh hardware restores clamp load and helps prevent seepage at the housing—ideal during rear main seal service.

Specifications for CPP 3913638