Product Description
Cummins 3910811 OEM Intake Rocker Lever (Rocker Arm) – 5.9L 12-Valve (1989–1998)
The Cummins 3910811 OEM Intake Rocker Lever (Rocker Arm) is a genuine Cummins replacement component designed for 1989–1998 5.9L 12-valve Cummins diesel engines. Engineered to meet original equipment specifications, this intake rocker lever ensures proper valve train operation, accurate valve movement, and long-term durability in both stock and performance applications.
Whether you're performing a complete valve train rebuild, replacing worn rocker components, or restoring reliability to your 12-valve Cummins engine, the Cummins 3910811 intake rocker arm delivers the fit, function, and dependability expected from a genuine OEM Cummins part. Manufactured to strict Cummins standards, it provides proper valve actuation and helps maintain engine performance and longevity.
Features
- Genuine Cummins OEM intake rocker lever
- Direct replacement for worn or damaged intake rocker arms
- Designed to meet original factory specifications
- Maintains proper valve train geometry
- Supports accurate valve movement and operation
- Durable construction for long service life
- Ideal for stock rebuilds and performance engine builds
- OEM fit and function with no modifications required
- Manufactured to Cummins quality standards
- Helps restore engine reliability and performance
Fitment
- 1989 Cummins 5.9L 12-Valve Diesel
- 1990 Cummins 5.9L 12-Valve Diesel
- 1991 Cummins 5.9L 12-Valve Diesel
- 1992 Cummins 5.9L 12-Valve Diesel
- 1993 Cummins 5.9L 12-Valve Diesel
- 1994 Cummins 5.9L 12-Valve Diesel
- 1995 Cummins 5.9L 12-Valve Diesel
- 1996 Cummins 5.9L 12-Valve Diesel
- 1997 Cummins 5.9L 12-Valve Diesel
- 1998 Cummins 5.9L 12-Valve Diesel
Note: This rocker lever is designed for the intake valve position. Verify engine serial number and application requirements before ordering. Inspect related valve train components during installation for proper operation and wear.
What's Included
- Cummins 3910811 OEM Intake Rocker Lever
Specifications
- Manufacturer: Cummins
- Part Number: 3910811
- Component Type: Intake Rocker Lever (Rocker Arm)
- Engine Platform: Cummins 5.9L 12-Valve
- Engine Family: 6BT
- Position: Intake Valve
- Material: OEM Cummins Construction
- Fitment Type: Direct Replacement
- Installation: Factory Style Fitment
- Application: Valve Train System
- OEM Replacement: Yes
- Engine Years: 1989–1998
Cross Reference Numbers
3910811, Cummins 3910811, OEM Intake Rocker Arm, OEM Intake Rocker Lever, 6BT Intake Rocker Arm, 12-Valve Intake Rocker Lever
FAQ
What does the Cummins 3910811 rocker lever fit?
This rocker lever is designed for 1989–1998 Cummins 5.9L 12-valve diesel engines and is used in the intake valve position.
Is this a genuine Cummins part?
Yes. The 3910811 is a genuine OEM Cummins replacement component designed to meet factory specifications.
Can this rocker arm be used on exhaust valves?
No. This part is designed specifically for the intake valve position. Always verify the correct rocker arm location before installation.
Should other valve train components be inspected during replacement?
Yes. Pushrods, bridges, valve stems, rocker shafts, and related valve train components should be inspected for wear whenever servicing the rocker system.
Is this suitable for performance applications?
Yes. Genuine Cummins rocker levers are commonly used in both stock rebuilds and performance-oriented 12-valve engine builds where OEM reliability is desired.
Why replace a worn rocker arm?
Worn rocker arms can affect valve lift, engine performance, valve train geometry, and overall engine reliability. Replacing damaged components helps maintain proper engine operation.
