GM 20931475 Fuel Tank Filler Neck

( Brand: Gm ), ( Manufacturer Part Number: 20931475 ), ( Part Type: Fuel Tank Filler ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Cadillac ), ( Year: 2013 2014 2015 ), ( Parts Included: Only Part Reference 7 On The Diagram Is Included )

Review GM Genuine Fuel Tank Filler Neck fits 2013–2015

The **GM 20931475 Fuel Tank Filler Neck** is a precision-engineered component designed to ensure a secure, leak-proof, and efficient fueling experience for General Motors vehicles equipped with this specific part number. Crafted from high-quality, corrosion-resistant materials, this filler neck is built to withstand the rigors of daily driving, extreme weather conditions, and prolonged exposure to fuel vapors, oils, and road debris. Its robust construction features a durable rubber gasket and a tight-sealing clamp mechanism, which work in tandem to prevent fuel spillage, vapor leaks, and contamination, thereby maintaining optimal fuel system integrity. The neck is engineered with a smooth, ergonomic interior to minimize clogging from debris while allowing for easy insertion of fuel nozzles, reducing the risk of accidental spills during refueling. Additionally, the part is designed to integrate seamlessly with GM s fuel tank systems, ensuring compatibility with the vehicle s fuel pump, vapor recovery system, and overall fuel delivery mechanism. Whether installed in a sedan, SUV, or light-duty truck, this filler neck contributes to the vehicle s reliability, fuel efficiency, and environmental compliance by adhering to strict emissions standards. For automotive professionals, this component represents a straightforward yet critical upgrade or replacement option, offering long-term durability and peace of mind for both mechanics and vehicle owners.

### **Pros and Cons of buying a GM 20931475 Fuel Tank Filler Neck**

1. **Direct Fitment** This part is specifically designed for General Motors (GM) vehicles, ensuring compatibility with your model without modifications. It should align perfectly with the fuel tank s existing mounting points and fuel line connections.

2. **OEM Quality** As an original equipment manufacturer (OEM) part, it meets GM s engineering standards, which typically means better durability and reliability compared to aftermarket alternatives that may use lower-grade materials.

3. **Reliability** GM s filler necks are built to withstand regular use, including exposure to fuel, weather, and minor vibrations. A high-quality OEM part reduces the risk of leaks or premature failure.

4. **Ease of Installation** Since it s designed for your vehicle, the filler neck should fit seamlessly with the existing fuel tank and surrounding components. This can simplify the installation process, especially if you re replacing a damaged or worn-out part.

5. **Compatibility with Fuel Systems** The filler neck integrates with the vehicle s fuel pump, fuel lines, and sometimes the fuel cap mechanism. An OEM part ensures proper sealing and functionality, reducing the chance of fuel spills or air leaks.

6. **Warranty Coverage** If purchased from an authorized GM dealer or a reputable supplier, the part may come with a warranty, providing peace of mind in case of defects.

7. **Aesthetic Consistency** For those who prioritize appearance, an OEM filler neck matches the factory design, maintaining the vehicle s original look without aftermarket modifications.

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1. **Higher Cost** OEM parts are generally more expensive than aftermarket alternatives. The price reflects GM s manufacturing standards, branding, and distribution costs. This may be a significant investment if you re on a tight budget.

2. **Limited Availability** Depending on the vehicle s age or rarity, finding an exact OEM filler neck may require ordering from a specialty supplier or a GM parts dealer, which could involve longer lead times compared to aftermarket options.

3. **Potential Overkill for Minor Repairs** If the filler neck is only slightly damaged (e.g., a small crack or cosmetic wear), an aftermarket part that s equally durable but cheaper might suffice. In such cases, paying for an OEM part could be unnecessary.

4. **Counterfeit Risks** Purchasing from untrusted sellers (e.g., unlicensed online marketplaces) increases the risk of receiving a fake or low-quality OEM part. Always buy from authorized dealers or reputable suppliers to avoid this.

5. **Weight and Bulk** OEM parts are often heavier and bulkier than aftermarket alternatives due to material thickness and build quality. This may not be a concern for most drivers but could be a minor inconvenience during installation.

6. **No Customization Options** Unlike some aftermarket parts, OEM filler necks do not offer customization (e.g., different colors, materials, or performance enhancements). If you re looking for unique features, you ll need to explore aftermarket solutions.

7. **Environmental and Ethical Considerations** OEM parts contribute to electronic waste when disposed of, and their production may have a higher environmental impact compared to some aftermarket parts made from recycled materials.

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### **Conclusion**

The GM 20931475 fuel tank filler neck is a high-quality, reliable choice for replacing a damaged or worn-out part in your vehicle. Its OEM status ensures compatibility, durability, and ease of installation, making it ideal for those who prioritize performance, longevity, and factory-like fitment. However, the higher cost and potential availability issues may be drawbacks for budget-conscious buyers or those repairing minor damage.

If your primary goal is **reliability, longevity, and a seamless fit**, the OEM part is the best recommendation. If you re working with a limited budget or only need a temporary fix, an aftermarket filler neck of comparable quality (e.g., from brands like ACDelco or FRAM) could be a cost-effective alternative **provided it meets your vehicle s specifications and is from a trusted manufacturer**.

For most drivers, the **pros outweigh the cons**, especially if the part is necessary for safety or functionality. Always verify the part s authenticity and compatibility before purchasing, and consider consulting a mechanic if you re unsure about the repair.

Details:

Just Didn't Like it. Changed My Mind. Found a Better Price.

part #: 20931475 prices

• $59.88-$60.38

specifications fueltanksysteme:

• for years: 2013-2015
• brand: Gm
• mpn: 20931475
• part type: Fuel Tank Filler
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Cadillac
• year: 2013 2014 2015
• parts included: Only Part Reference 7 On The Diagram Is Included

seller fueltanksysteme:

• city: Garland, Texas
• rating: 99.0%
• # reviews: 30892

returns fueltanksysteme:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

shipping fueltanksysteme:

• class: Standard
• carrier: FedEx
• transit: 5-11 Days
• cost: $0.00
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery

payments fueltanksysteme:

• wallet: Google-pay
• other
• credit card: Diners-club

general fueltanksysteme:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

offer fueltanksysteme:

• started: April 12, 2026
• options: Ship-to-home
• sold: 0
• quantity: 4
• availability: In Stock

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