GATES SX-3823 Fuel Tank Cap Kb W150 3.7L 3.9L 5.2L 5.9L 7.2L L6 V6

( Brand: Gates ), ( Manufacturer Part Number: SX-3823 ), ( 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: C611 50-56 ), ( Compatible Model: W150 ), ( Compatible Year: 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Dodge 3.7l 3.9l 5.2l 5.9l 7.2l L6 V6 Kb fits 1978–1993

The **Gates SX-3823 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the iconic **1978 1993 Dodge W150** pickup trucks equipped with the legendary **3.7L, 3.9L, 5.2L, 5.9L, 7.2L, or KB-series V6 engines**. Crafted from durable, corrosion-resistant materials, this fuel cap is built to withstand the demands of heavy-duty towing, off-road adventures, and daily driving in harsh conditions. The cap features a **tight-sealing rubber gasket** that ensures an airtight fit, preventing fuel vapors from escaping while maintaining optimal pressure within the fuel system critical for both performance and emissions compliance. Its **robust metal construction** resists warping, cracking, or deformation under extreme temperatures, vibrations, or mechanical stress, making it a reliable upgrade over OEM components prone to wear. The cap is also designed with a **secure, easy-to-grip lid**, allowing for effortless installation and removal, even in tight spaces or when wearing gloves. Whether you're hauling heavy loads, navigating rough terrain, or simply seeking a long-lasting solution to prevent fuel leaks and vapor loss, the Gates SX-3823 delivers superior durability and functionality. Built to meet or exceed factory specifications, this aftermarket replacement is a trusted choice for truck enthusiasts and fleet operators who demand quality and performance in every detail.

### Pros and Cons of buying a Gates SX-3823 Fuel Tank Cap for 1978 1993 Dodge W150 (3.7L 7.2L, KB Series)

1. **OEM Fitment and Compatibility** The Gates SX-3823 is designed specifically for the 1978 1993 Dodge W150 (KB series) with engines ranging from 3.7L to 7.2L, including V6 and inline-six configurations. This ensures a proper seal and prevents fuel leaks or vapor loss.

2. **High-Quality Materials** Gates is a reputable brand known for durable, corrosion-resistant components. The cap is likely made from sturdy plastic and metal, reducing the risk of cracking or warping over time.

3. **Seal Integrity** A well-fitted cap prevents fuel vapors from escaping, which helps maintain proper fuel system pressure and reduces evaporation. This can improve fuel efficiency and reduce emissions.

4. **Easy Installation** The design is straightforward, making it a simple DIY replacement without requiring specialized tools. Most users can install it in under 10 minutes.

5. **Prevents Contamination** A secure, intact cap keeps debris, moisture, and contaminants out of the fuel tank, protecting the fuel system from clogs or corrosion.

6. **Cost-Effective Solution** Compared to OEM replacement parts, aftermarket options like the Gates SX-3823 are often more affordable while still providing reliable performance.

7. **Widely Available** As a common replacement part, it is easy to find in auto supply stores, online retailers, or through direct purchase from Gates.

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1. **Potential Counterfeit Issues** Some aftermarket parts, including Gates products, may be counterfeit if purchased from untrusted sellers. Always buy from authorized dealers or reputable online retailers to ensure authenticity.

2. **Durability Concerns Over Time** While Gates parts are generally high-quality, prolonged exposure to extreme temperatures, UV light, or fuel additives (such as ethanol blends) could eventually degrade the plastic or rubber seal.

3. **Mismatched Styling (Aesthetic)** If appearance is a priority, the Gates cap may not match the exact look of an OEM part, though functional fit is still correct.

4. **Limited Warranty** Gates typically offers a limited warranty (e.g., 1 2 years), which may not cover long-term wear or damage from improper installation.

5. **Possible Over-Tightening Risk** If the cap is tightened excessively, it could strip the threads on the fuel tank or damage the seal, leading to leaks.

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The Gates SX-3823 fuel tank cap is a **reliable, cost-effective, and easy-to-install** replacement for the 1978 1993 Dodge W150 (KB series). Its OEM fitment, durability, and seal integrity make it a strong choice for preventing fuel leaks and maintaining system efficiency. However, buyers should ensure they purchase from a trusted source to avoid counterfeit products and should handle installation carefully to avoid damage.

For most owners, the **Gates SX-3823 is the best aftermarket option** due to its balance of quality, compatibility, and affordability. If budget allows, an **OEM replacement cap** (if available) may offer slightly better long-term durability, but the Gates part is a proven alternative. Always inspect the seal and threads before installation, and avoid overtightening to ensure a proper fit. For those concerned about aesthetics, pairing it with a matching fuel filler door or trim piece can improve the appearance.

Details:

Gates Fuel Tank Cap for 1978 1993 Dodge W150 3.7L 3.9L 5.2L 5.9L 7.2L L6 V6 kb: Status: In Stock.

part #: sx3823 prices

• $20.83-$26.53

specifications fueltanksysteme:

• for makes: Dodge
• for years: 1978-1993
• brand: Gates
• mpn: Sx-3823
• 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: C611 50-56
• compatible model: W150
• compatible year: 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

general fueltanksysteme:

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

offer fueltanksysteme:

• options: Ship-to-home
• started: March 27, 2026
• availability: In Stock
• quantity: 10
• sold: 0

shipping fueltanksysteme:

• transit: 4-7 Days
• service: Standard, Expedited
• class: Standard, Expedited
• cost: $0.00
• type: Fixed

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 638057

payments fueltanksysteme:

• credit card: Discover
• other
• wallet: Google-pay

returns fueltanksysteme:

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

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