GM GENUINE PARTS Fuel Tank Filler Cap GT195 (22591476) OEM-style threaded cap with rubber gasket

This replacement filler cap is built to the specifications General Motors recommends for many GM vehicles. It uses a molded rubber sealing surface and engineered valve features to preserve tank pressure and help prevent liquid leaks and debris intrusion. Designed as a direct-fit, vehicle-specific component, this cap restores the original fit and function expected from factory equipment.

How does this fuel cap maintain a tight seal?

The cap relies on a precision-molded rubber gasket and matching threaded engagement to form a liquid- and vapor-resistant closure. Proper threading plus the gasket compresses evenly to keep fuel contained while excluding water and dirt.

• Rubber gasket for consistent compression and leak prevention
• Threaded design for secure, repeatable fitment
• Engineered tolerances to match GM filler neck dimensions

Will this cap work with my GM vehicle?

This part is a vehicle-specific GM Genuine Parts item intended as a like-for-like replacement where GT195 or part number 22591476 is specified. Always verify compatibility using your vehicle’s year, make, model, and the OEM part number before purchase.

• OEM part number: 22591476 / GT195 reference
• Designed to match factory dimensions and fitment
• Intended for vehicles that list the same GM part number

Does the cap help with pressure control or venting?

Many original-style fuel caps include a one-way or check valve to equalize tank pressure as needed; this GM Genuine Parts cap may include that feature to help manage tank air flow while maintaining a sealed system. It’s built to perform like the original component without altering system operation.

• Possible check-valve design for controlled air passage
• Maintains expected tank pressure behavior from the factory cap
• Does not modify or replace vehicle emission control components

How durable and reliable is this replacement part?

Manufactured to GM standards, this cap is constructed from durable materials chosen for long-term exposure to fuel, vapors, and environmental elements. It’s intended to provide service life and performance comparable to the original part it replaces.

• Quality materials resistant to fuel and weathering
• Produced under factory-level specifications for consistent performance
• Simple install — screw-in style matching original cap action

Who is this for: Vehicle owners, independent mechanics, and fleet managers seeking an exact-fit GM replacement fuel tank filler cap for models requiring GT195 / 22591476. Choose this cap if you want a factory-style part to restore proper sealing, preserve system behavior, and maintain OEM specifications without aftermarket adaptation.