The Enginetech ER9111 is a 4-piece intake/exhaust rocker arm set engineered as a stock replacement for 2001-2007 Chevrolet, GMC engine applications.
Important Notes
- Application side: Intake/Exhaust - confirm you are replacing the correct side of the valvetrain before installing.
- Sold as a 4-pack. Confirm total quantity needed for your engine before ordering.
Specifications
| Brand | Enginetech |
| Part Number | ER9111 |
| Product Type | Rocker Arm Set |
| Quantity per Pack | 4 |
| Application Side | Intake/Exhaust |
| Country of Origin | Mexico |
| OEM / Aftermarket Cross References | Elgin:R9111, SB International:180-1328, General Motors:12556298 |
Vehicle Fitment
- Years: 2001-2007
- Makes: Chevrolet, GMC
- Models: Avalanche 2500, B7, C3500HD, Express 3500, Savana 3500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Suburban 2500, Yukon XL 2500
Rocker arms are a critical valvetrain component, transferring motion from the camshaft or pushrod to the valve stem to open the intake and exhaust valves in precise time with crankshaft rotation. Wear, pitting, or pivot failure in even a single rocker arm disrupts valve timing and lift, causing lost compression, misfires, and accelerated guide and seat wear. Replacing rocker arms during a top-end or full engine rebuild - alongside pushrods, retainers, valve springs, and valve seals - restores correct valvetrain geometry and avoids the compounding tolerance stack that shortens a fresh rebuild's service life.
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm, including lead and nickel.
