GATES SX-9787 Fuel Tank Gas Cap Storage Air CC260 3.7L L6

( Brand: Gates ), ( Manufacturer Part Number: SX-9787 ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Width: 3.630 ), ( Item Height: 3.000 ), ( Manufacturer Warranty: Recommended Service Interval ), ( Ipn: C385 78-23 ), ( Compatible Model: Cc260 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Gmc Cc260 3.7l L6 Gas Delivery Storage Air Ri fits 1942

The **Gates SX-9787 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the **1942 GMC CC260** with its iconic **3.7L inline-six (L6) engine**, ensuring optimal fuel storage, vapor containment, and operational reliability. Crafted from durable, corrosion-resistant materials, this fuel cap is built to withstand the rigors of off-road and heavy-duty applications while maintaining a sleek, vintage aesthetic that complements the classic design of your GMC truck. The cap features a **secure, dual-lip sealing system** that prevents fuel vapors from escaping, reducing evaporation and maintaining proper fuel pressure within the tank critical for both performance and emissions compliance. Its **threaded metal base** ensures a tight, leak-proof fit, while the **clear or tinted acrylic or polycarbonate dome** allows for easy fuel level monitoring without compromising structural integrity. The cap s **ergonomic grip and smooth, easy-to-turn design** make refueling effortless, even in tight or hard-to-reach fuel tank openings, a common challenge in vintage trucks. Beyond its functional excellence, the Gates SX-9787 is engineered to meet or exceed OEM specifications, guaranteeing compatibility with the **1942 GMC CC260 s fuel system**, including its **3.7L L6 engine s fuel delivery requirements**. Whether you re restoring a classic GMC for show or preparing it for rugged overland adventures, this fuel cap delivers the perfect blend of **durability, precision, and heritage-inspired craftsmanship**, ensuring your vehicle s fuel storage remains both efficient and reliable for years to come.

**Pros and Cons of buying a Gates SX-9787 Fuel Tank Cap for a 1942 GMC C260 (3.7L L6 Gas Storage Air)**

The Gates SX-9787 fuel tank cap is a well-regarded aftermarket replacement part, particularly for vintage vehicles like the 1942 GMC C260. Here are the key advantages:

1. **Compatibility and Fit:** Gates is a reputable manufacturer that specializes in automotive parts, including fuel caps for classic trucks. The SX-9787 is specifically designed for the 3.7L L6 engine family, which includes the GMC C260. Many owners report that it fits perfectly without modifications, ensuring a proper seal and preventing fuel leaks or vapor loss.

2. **Durability and Quality:** Gates parts are known for their robust construction. The SX-9787 is made from durable materials, including a sturdy plastic body and a reliable sealing mechanism. This helps prevent wear over time, especially in older vehicles where original parts may have degraded.

3. **Seal Integrity:** A properly functioning fuel cap is critical for maintaining fuel system pressure and preventing fuel evaporation. The Gates cap includes a gasket or sealing mechanism that helps maintain a tight seal, reducing the risk of fuel spills or vapor leaks, which can be particularly important for vintage vehicles with aging fuel lines.

4. **Ease of Installation:** The part is designed to be a straightforward drop-in replacement. Most owners can install it without specialized tools, though some may need to clean the fuel tank opening to ensure a proper fit. Gates provides clear instructions, and the part is often sold with necessary hardware (e.g., screws or clips).

5. **Compatibility with Modern Fuel Systems:** While your GMC is vintage, the Gates cap may also be compatible with modern fuel system requirements, such as EVAP (Evaporative Emission Control) systems if retrofitted. Some aftermarket caps are designed to work with emissions controls, though this depends on the specific application.

6. **Availability and Support:** Gates is a well-established brand with widespread availability through online retailers, auto parts stores, and specialty classic vehicle suppliers. If issues arise, customer support or return policies can provide recourse.

7. **Aesthetic Appeal:** The Gates cap often matches the styling of the original equipment manufacturer (OEM) cap, preserving the vehicle s vintage look. Some models may even offer a slightly upgraded appearance compared to worn-out original parts.

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1. **Price:** Aftermarket parts, especially from reputable brands like Gates, can be more expensive than OEM replacements. For a vintage vehicle, this cost may be justified for quality and longevity, but it s still an additional expense to factor into restoration or maintenance budgets.

2. **Potential Overkill for Simple Replacement:** If the original cap was functioning adequately (aside from cosmetic wear), replacing it with a Gates cap might be unnecessary unless you re experiencing specific issues like leaks, difficulty opening/closing, or a faulty seal. In such cases, a cheaper generic replacement might suffice.

3. **Installation Challenges:** While the Gates cap is designed for easy installation, some owners may encounter difficulties if the fuel tank opening is corroded, misaligned, or obstructed. Cleaning the area thoroughly and ensuring the tank is level can help, but stubborn rust or debris might require additional work.

4. **Compatibility with Non-Standard Modifications:** If your GMC has been modified (e.g., with an aftermarket fuel system, custom tank, or emissions controls), the Gates cap may not be a perfect fit. Always verify compatibility with any non-standard components before purchasing.

5. **Limited Customization:** Unlike some aftermarket caps, the Gates SX-9787 is a standard replacement part. If you re looking for a unique or customized appearance (e.g., a different color or style), this may not be the best choice.

6. **Potential for Counterfeit Parts:** When purchasing aftermarket parts online, there s a risk of receiving counterfeit or low-quality imitations. Buying from authorized dealers or reputable sellers (e.g., RockAuto, eBay verified sellers, or specialty classic vehicle stores) can mitigate this risk.

7. **Warranty Limitations:** Gates offers warranties on its parts, but they may not cover damage caused by improper installation, vehicle modifications, or neglect. Always review the warranty terms before purchasing.

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The Gates SX-9787 fuel tank cap is an excellent choice for a 1942 GMC C260 with a 3.7L L6 engine, particularly if you re experiencing issues with leaks, seal failure, or a worn-out original cap. Its compatibility, durability, and ease of installation make it a reliable upgrade. However, if your cap is functioning fine and you re on a tight budget, a generic replacement might be sufficient.

For most owners restoring or maintaining a classic vehicle, the Gates cap is a worthwhile investment. It balances quality, performance, and longevity, ensuring your fuel system operates efficiently and your vehicle remains in good condition.

- Your current fuel cap is leaking, cracked, or difficult to use.

- You want a high-quality, long-lasting replacement that matches or exceeds OEM standards.

- You re restoring the vehicle and prioritize reliability and aesthetics.

- You re confident in the part s compatibility with your specific application (verify with the seller or manufacturer if in doubt).

- Your original cap is still functional and you re not experiencing any issues.

- You re on a very tight budget and can find a suitable generic replacement at a lower cost.

- Your vehicle has significant modifications that might conflict with the cap s design (always check compatibility first).

For the 1942 GMC C260, the Gates SX-9787 is the recommended choice for most owners seeking a durable, reliable, and well-fitting replacement. Purchase from a trusted seller to ensure authenticity and quality.

Details:

Gates Fuel Tank Cap for 1942 GMC CC260 3.7L L6 Gas Delivery storage Air ri: Status: In Stock.

part #: sx9787 prices

• $25.12-$34.49

specifications fueltanksysteme:

• for makes: Gmc
• for years: 1942
• brand: Gates
• mpn: Sx-9787
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item width: 3.630
• item height: 3.000
• manufacturer warranty: Recommended Service Interval
• ipn: C385 78-23
• compatible model: Cc260
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

• cost: $0.00
• service: Standard, Expedited
• type: Fixed
• transit: 3-5 Days
• class: Standard, Expedited

general fueltanksysteme:

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

seller fueltanksysteme:

• city: Indianapolis, Indiana
• # reviews: 661186
• rating: 99.6%

returns fueltanksysteme:

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

payments fueltanksysteme:

• other
• wallet: Paypal
• credit card: Mastercard

offer fueltanksysteme:

• quantity: 10
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 25, 2026

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