CUMMINS 3900687 | GENUINE CAMSHAFT EXPANSION PLUG | 5.9L | FITS 1989-2002 DODGE RAM 5.9L CUMMINS

The Cummins 3900687 GENUINE CAMSHAFT EXPANSION PLUG | 5.9L is a genuine OEM replacement designed for Dodge Ram Cummins trucks.

Function & Purpose

Engineered to restore factory performance and reliability in its respective system under diesel operating conditions.

Common Symptoms When Worn/Failed

• Performance degradation
• Unusual noises
• Fluid leaks or warning lights

Why Genuine Cummins

Genuine Cummins parts meet OEM tolerances and materials, resisting heat and vibration better than aftermarket alternatives.

Key Features & Benefits

• OEM Cummins Part #3900687 — engineered for factory fit and function
• Direct-fit replacement
• Durable construction
• Restores proper operation
• Meets OEM specifications

Fitment

• 1989-2002 Dodge Ram 2500/3500 with 5.9L Cummins

Installation Notes

• Inspect gaskets/seals
• Clean surfaces and torque to spec
• Verify alignment before startup
• Follow Cummins service manual

Related Products

• Cummins 3283337 | Genuine Cylinder Head Gasket (.010) | 5.9L | Fits 1989-1998 Dodge Ram 5.9L Cummins
• Cummins 3283339 | Genuine Cylinder Head Gasket (.020) | 5.9L | Fits 1989-1998 Dodge Ram 5.9L Cummins
• Cummins 3284623 | Genuine Push Rod Cover Gasket | 5.9L | Fits 1989-2002 Dodge Ram 5.9L Cummins

Tags

Cummins 3900687 Genuine Camshaft Expansion Plug | 5.9L Fits 1989-2002 1989-2002 Dodge Ram 5.9L Cummins Genuine OEM CPP Diesel