Honda 12391-ZE2-020 Valve Cover Gasket GX240 GX270 GX340 GX390 Cylinder Head

Sold by NAMparts, a veteran-owned small business serving DIYers and pros for over a decade. Genuine product, fast shipping, and US-based support behind every order.

Maintain peak engine performance with this genuine Honda Valve Cover Gasket. This critical component is designed to create a reliable seal between the valve cover and the cylinder head, effectively preventing oil leaks and maintaining the structural integrity of your generator engine.

Specifications

Feature Detail
Manufacturer Honda
Part Number (MPN) 12391-ZE2-020
Material Rubber
Type Gasket
Condition New
Origin Japan
Compatible Models GX240, GX270, GX340, GX390

Features & Benefits

Applications

This valve cover gasket is engineered for specific Honda gas-powered generator engines. It is a direct replacement part compatible with the following series: GX240, GX270, GX340, and GX390.

What Customers Are Saying

“good quality item. seems even better than original . would do business again”— L., Apr 2026
“Shipped quick, smooth transaction, recommend seller!”— M., May 2026
“fast and safe shipping great price and parts very happy!”— H., Jun 2026