GATES SX-5146 Fuel Tank Gas Cap 6.2L 6.5L V8

( Brand: Gates ), ( Manufacturer Part Number: SX-5146 ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Length: 3.630 ), ( Item Height: 3.000 ), ( Manufacturer Warranty: Recommended Service Interval ), ( Ipn: C389 39-47 ), ( Compatible Model: Blazer ), ( Compatible Year: 1994 1993 1992 1991 1990 1989 1988 1987 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Chevrolet 6.2l 6.5l V8 Gas Delivery fits BLAZER WZ 1987–1994

The **Gates SX-5146 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the 1987 through 1994 Chevrolet Blazer equipped with the robust 6.2L or 6.5L V8 gasoline engine, including models badged as the WZ trim. Crafted from durable, corrosion-resistant materials, this fuel tank cap is built to withstand the demands of rugged off-road use while ensuring a secure, leak-proof seal that maintains optimal fuel system integrity. The cap features a robust, threaded design with a precision-machined gasket that prevents vapor leaks, reducing fuel evaporation and preserving engine efficiency critical for both daily driving and extended off-road excursions. Its sturdy construction includes a reinforced lid with a secure locking mechanism, minimizing the risk of accidental detachment during rough terrain or aggressive driving. The cap s aerodynamic shape not only enhances fuel efficiency by reducing drag but also integrates seamlessly with the Blazer s fuel filler neck, ensuring a snug, interference-free fit. Whether navigating gravel roads, rocky trails, or urban commutes, this Gates fuel tank cap delivers reliable performance, durability, and peace of mind, making it an essential upgrade for owners seeking to maintain their vehicle s functionality and longevity.

### Pros and Cons of buying a Gates SX-5146 Fuel Tank Cap for a 1987-1994 Chevrolet Blazer (6.2L/6.5L V8 Gas, WZ)

1. **Direct Fitment** The Gates SX-5146 is specifically designed for the 1987-1994 Chevrolet Blazer with the 6.2L and 6.5L V8 gas engine, including the WZ trim. This ensures compatibility without modification, reducing the risk of installation issues.

2. **High-Quality Material** Gates is a well-known manufacturer of automotive parts, particularly for fuel systems. Their products are typically made from durable materials, such as metal and rubber, which are resistant to wear, corrosion, and fuel degradation over time.

3. **Seal Integrity** A properly functioning fuel cap ensures a tight seal, preventing fuel vapors from escaping into the atmosphere. This helps maintain proper fuel pressure in the tank, which is crucial for optimal engine performance and fuel efficiency.

4. **Prevents Contamination** A faulty or missing fuel cap allows moisture, dirt, and debris to enter the fuel tank, potentially causing corrosion, clogging the fuel system, or damaging the fuel pump. The Gates cap helps keep the fuel system clean.

5. **Noise Reduction** A loose or damaged fuel cap can create rattling noises when driving over rough terrain, which is particularly noticeable in off-road vehicles like the Blazer. The Gates cap should fit securely, reducing unwanted noise.

6. **Easy Installation** The cap is designed for straightforward installation, requiring only basic tools. Most owners can replace it themselves without professional assistance.

7. **Warranty Coverage** Gates products often come with a manufacturer s warranty, providing some assurance against defects in materials or workmanship.

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1. **Cost** While not excessively expensive, the Gates SX-5146 may be more costly than a generic or aftermarket fuel cap. For budget-conscious buyers, this could be a drawback, especially if the original cap is still functional.

2. **Availability** Depending on the region or retailer, the Gates part may not always be in stock. Some buyers might need to order it online or wait for delivery, which can be inconvenient.

3. **Potential Counterfeit Concerns** As with many branded parts, there is a risk of purchasing a counterfeit Gates cap, especially from third-party sellers. Counterfeit products may not meet quality standards, leading to premature failure or poor performance.

4. **Overkill for Minor Issues** If the original fuel cap is only slightly damaged or loose but still functional, replacing it with a Gates cap might be unnecessary. In such cases, a simpler or cheaper replacement could suffice.

5. **No Significant Performance Gain** Unlike performance upgrades (e.g., air filters, exhaust systems), replacing the fuel cap with a Gates model does not improve engine performance, fuel economy, or power. It primarily addresses reliability and fuel system integrity.

6. **Potential Overkill for Older Vehicles** While the Gates cap is durable, some older vehicles may experience wear in other fuel system components (e.g., fuel lines, pump) that could still lead to issues even with a high-quality cap. Addressing these underlying problems may be more important.

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The Gates SX-5146 fuel tank cap is a reliable and high-quality replacement for the 1987-1994 Chevrolet Blazer with a 6.2L or 6.5L V8 gas engine. Its direct fitment, durability, and sealing properties make it a strong choice for owners looking to ensure their fuel system remains intact and functional. However, the cost and potential availability issues may deter some buyers, particularly if the original cap is still in decent condition.

For most owners who prioritize long-term reliability and want to avoid future fuel system issues, the Gates cap is a worthwhile investment. If budget is a concern and the original cap is still functional, a generic replacement might be sufficient. Always verify the authenticity of the part and consider purchasing from a trusted retailer to avoid counterfeit products.

- Your current cap is damaged, missing, or leaking.

- You want a high-quality, long-lasting replacement to prevent fuel system contamination or vapor loss.

- You value brand reliability and are willing to pay a slightly higher price for peace of mind.

- Your original cap is still functional and only slightly worn.

- You are on a tight budget and can find a comparable generic cap at a lower cost.

- You suspect the part may be counterfeit, and you cannot verify its authenticity.

In most cases, the Gates cap is the best choice for ensuring a secure and reliable fuel system in your Blazer.

Details:

Gates Fuel Tank Cap for 1987 - 1994 Chevrolet Blazer 6.2L 6.5L V8 Gas Delivery Wz: Status: In Stock.

part #: sx5146 prices

• $22.96-$25.63

specifications fueltanksysteme:

• for models: Wz, Blazer
• for makes: Chevrolet
• for years: 1987-1994
• brand: Gates
• mpn: Sx-5146
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item length: 3.630
• item height: 3.000
• manufacturer warranty: Recommended Service Interval
• ipn: C389 39-47
• compatible model: Blazer
• compatible year: 1994 1993 1992 1991 1990 1989 1988 1987
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

• class: Standard, Expedited
• type: Fixed
• service: Standard, Expedited
• transit: 2-6 Days
• cost: $0.00

returns fueltanksysteme:

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

seller fueltanksysteme:

• rating: 99.7%
• # reviews: 666643
• city: Indianapolis, Indiana

offer fueltanksysteme:

• quantity: 7
• options: Ship-to-home
• sold: 0
• started: June 11, 2026
• availability: In Stock

general fueltanksysteme:

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

payments fueltanksysteme:

• other
• wallet: Apple-pay
• credit card: Visa

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