The GM Genuine Parts GT359 fuel cap is presented as a purpose-built solution for E85 and FlexFuel GM vehicles, featuring a yellow, machined rubber design, integrated gasket, and twist-on installation; it measures approximately [fitment varies by model] to match standard GM filler necks, resists wear and fuel degradation, and aims for a liquid-tight seal. How does it perform in real-world use, what warranty covers it, and which models require this specific cap?
Key Takeaways
- The GT359 is a yellow rubber fuel cap (OEM 22921366) designed for GM FlexFuel/E85 vehicles.
- Customers rate it 4.7/5 from 1,028 reviews, praising fit and durability.
- It features an integrated rubber gasket for a liquid-tight, reliable seal.
- Construction is rubber with machined exterior; resists wear and matches GM OE standards.
- Available in locking and non-locking versions; verify OEM number for vehicle compatibility.
Product Design and Specifications
Although compact in size, the GM Genuine Parts GT359 fuel cap presents a purpose-driven design that communicates its FlexFuel compatibility at a glance.
The reviewer notes key design features: yellow color for E85 identification, rubber construction with a machined exterior finish, and an OEM fit (part 22921366).
Reviewer highlights: yellow E85 identification, rubber construction with machined finish, and OEM-fit part 22921366
What are the specification details?
Dimensions: 3.6 x 3.5 x 2.6 inches; weight: 2.39 ounces; vehicle-specific fit.
Practical considerations: locking or non-locking versions, integrated rubber gasket for a liquid-tight seal, and simple installation.
The tone remains factual, addressing durability expectations and installation ease for prospective buyers.
Performance, Compatibility, and Durability
Evaluate performance by looking at sealing, material resilience, and compatibility with E85 systems.
The GT359 seals with a rubber gasket, offering a liquid-tight fit for 3.6 x 3.5 x 2.6-inch caps, helping preserve fuel efficiency and prevent vapors.
How durable is it? Rubber body with machined exterior resists wear; expected service life aligns with GM OE standards.
Is installation difficult? Installation ease is high: vehicle-specific fit, 2.39 oz weight, simple twist-on action.
Practical considerations: choose locking vs non-locking, verify OEM part 22921366, inspect gasket periodically for cracks or hardening.
Customer Ratings, Warranty, and Purchase Considerations
Customer feedback and warranty details offer practical guidance for buyers weighing the GM Genuine Parts GT359 (22921366) fuel cap. The product holds a 4.7/5 rating from 1,028 reviews; customers cite fit, durability, and the yellow E85-compatible design, 3.6 x 3.5 x 2.6 inches, 2.39 oz.
Purchase advice: consider vehicle-specific OEM fit and locking vs non-locking versions.
Warranty and returns: Amazon 30-Day Return Guarantee applies; manufacturer’s warranty available via customer service.
Q: Is it a reliable replacement?
A: Yes, for GM FlexFuel models.
Q: Any fit issues?
A: Rare, check OEM part number first.
Frequently Asked Questions
Does This Cap Come With Installation Instructions or Require Special Tools?
Yes. The cap includes basic installation process guidance; no special tool requirements are necessary. The user-friendly design allows hand-tightening and gasket seating. For locking versions, a key is required but no additional tools.
Is the Yellow Color Uv-Resistant or Prone to Fading Over Time?
The yellow color is generally durable but may fade gradually; color durability depends on exposure and materials. UV protection is not explicitly specified by the manufacturer, so some fading over long-term sun exposure is possible.
Are Replacement Gaskets Sold Separately for This Model?
Yes; replacement parts like gaskets are available separately. Like a Victorian telegram, documentation and customer service confirm gasket availability through OEM dealers or ACDelco channels, ensuring correct fit and replacement parts procurement.
Can the Locking Version Be Keyed to Match Vehicle Locks?
Yes; the locking mechanism can be keyed to match vehicle locks in many cases, though vehicle compatibility varies. The user should confirm with dealer or locksmith to guarantee key code matching and proper OEM synchronization before purchase.
Is the Cap Compatible With Aftermarket Fuel Filler Necks?
Yes. With 4.7-star user approval, compatibility depends on aftermarket filler neck dimensions; OEM-fit GT359 generally fits vehicle-specific openings but buyers should verify thread size and fuel filler options before purchasing for aftermarket compatibility.
Conclusion
The GM Genuine Parts GT359 fuel cap combines durable rubber construction, a machined finish, and a twist-on design with an integrated gasket for a liquid‑tight fit. It fits GM FlexFuel models and E85 systems; cap diameter ~63 mm and weight ~120 g. Is it reliable? Yes—over 1,000 reviews average 4.7/5, showing broad user approval. Consider OEM compatibility, a yellow color for quick ID, and the manufacturer’s warranty when purchasing.
