Apico Alloy Fuel Cap Vent/ Breather - AT FUEL CAP VT 4RT RD - Red

A vented fuel cap allows air to enter the fuel tank as fuel is used, preventing a vacuum from forming. This ensures consistent fuel delivery to the engine.

No, this Apico fuel cap is specifically designed for Montesa 4RT 250-301 models from 2005-2024. It is unlikely to fit other brands or models.

Symptoms of a non-venting or faulty fuel cap include the engine bogging down, losing power during acceleration, or difficulty maintaining high RPMs. You might also notice the fuel tank slightly collapsing inward if a vacuum is present.

The red finish is designed for motorcycle use, but like any painted surface, it can be susceptible to scratching from impacts or abrasion. Regular care will help maintain its appearance.

This cap is designed for 2005-2024 models. While it might physically fit a 2004, the precise compatibility for that specific year is not guaranteed. Please check your owner's manual or contact Apico for confirmation.

No, installation is typically a simple screw-on process. No special tools are required; you just need to unscrew the old cap and screw on the new one.

Check that the vent tube on the fuel cap is not blocked by dirt or debris. Ensure the cap is properly seated on the fuel tank.

Verify that the fuel cap is venting correctly. A vacuum in the tank can disrupt fuel flow. Clean the vent and ensure it's open.

Confirm that you have the correct model and year range for the Montesa 4RT. Ensure there is no damage to the fuel tank's neck or the cap's threads.