Enginetech GD3142 Valve Guides for 2001-2016 Chevrolet GMC Hummer - .2755 ID x .4547 OD x 1.967" L - Spiral ID - Direct OEM Replacement
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The Enginetech GD3049 is a 4-pack of valve guides engineered as a stock replacement for 2001-2006 Chevrolet, GMC, Hummer engine applications.
| Brand | Enginetech |
| Part Number | GD3049 |
| Product Type | Valve Guides |
| Quantity per Pack | 4 |
| Inner Diameter | .2755" |
| Outer Diameter | .4547" |
| Length | 1.967" |
| Material | Iron |
| ID Finish | Plain ID |
| Application Side | Intake/Exhaust |
| Country of Origin | Taiwan |
| OEM / Aftermarket Cross References | Elgin:53049, FEL-PRO:VG1444, SB International:140-3049, General Motors:97250340, Isuzu:8972503401, Pep Boys:C3049 |
Valve guides are precision-machined cylindrical sleeves press-fit into the cylinder head that guide the valve stem's travel and control valve-to-seat alignment during combustion cycles. Worn guides increase stem-to-guide clearance, causing oil consumption, valve seal failure, loss of seat contact, and premature valve and seat wear. Installing new guides during a valve job restores correct stem alignment, ensures proper valve sealing, and extends the service life of the valves, seats, and stem seals that work with them.
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.