The Enginetech GD3181 is a 4-pack of intake-side bronze valve guides engineered as a stock replacement for 2005-2021 Lexus, Scion, Toyota engine applications.
Important Notes
- Sold as a 4-pack.
- Application side: Intake valve position - confirm you are replacing the correct side.
- Plain ID: smooth inner bore - standard finish for most applications.
- Bronze construction: improved heat dissipation and self-lubricating properties compared to standard iron guides.
Specifications
| Brand | Enginetech |
| Part Number | GD3181 |
| Product Type | Bronze Valve Guides |
| Quantity per Pack | 4 |
| Inner Diameter | .2175" |
| Outer Diameter | .4073" |
| Length | 1.63" |
| Material | Bronze |
| ID Finish | Plain ID |
| Application Side | Intake |
| Country of Origin | Taiwan |
| OEM / Aftermarket Cross References | Topline:IVGTO55 |
Vehicle Fitment
- Years: 2005-2021
- Makes: Lexus, Scion, Toyota
- Models: 4Runner, Avalon, C-HR, CT200h, Camry, Corolla, ES300h, ES350, FJ Cruiser, GS F, GS200t, GS300, GS460, Highlander, IS F, IS250, IS300, LC500, LS460, LX570, Land Cruiser, Matrix, NX200t, NX300, NX300h, and more
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.
