DORMAN OE SOLUTIONS SX-3733 Fuel Tank Sending Unit Lock Ring Su

( Brand: Dorman Oe Solutions ), ( Manufacturer Part Number: SX-3733 ), ( Type: Fuel Tank Sending Unit Lock Ring ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Width: 6.300 ), ( Item Height: 0.980 ), ( Item Length: 7.090 ), ( Manufacturer Warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part ), ( Ipn: C342 14-46 ), ( Compatible Model: E-250 Econoline Club Wagon ), ( Compatible Year: 1991 1990 1989 1988 1987 1986 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dorman Fuel Tank Sending Unit Lock Ring )

Review DORMAN OE SOLUTIONS Fuel Tank Sending Unit Lock Ring Ford Econoline Su fits E-250 1986–1991

The **Dorman SX-3733 Fuel Tank Sending Unit Lock Ring** is a precision-engineered replacement part designed specifically for the **1986 through 1991 Ford E-250 Super Duty (SU) series**, ensuring a secure and reliable fit for your vehicle s fuel system. This high-quality lock ring is crafted from durable, corrosion-resistant material, engineered to withstand the demands of heavy-duty truck applications while maintaining a tight seal around the fuel tank s sending unit. The design features a **split-ring construction**, allowing for easy installation and removal without the need for specialized tools beyond a basic flathead screwdriver or pliers, though care must be taken to avoid bending or damaging the ring during handling. Compatible with the **E-250 s fuel gauge sending unit assembly**, this lock ring plays a critical role in preventing fuel leaks, ensuring accurate fuel level readings, and maintaining the integrity of the fuel tank s internal components. Whether you re performing routine maintenance, addressing a faulty sending unit, or upgrading your truck s fuel system, the Dorman SX-3733 provides a **direct-fit, OEM-quality solution** that restores proper function and extends the lifespan of your vehicle s fuel management system. Built to meet Ford s original specifications, this part is a trusted choice for mechanics and DIY enthusiasts alike, offering both reliability and ease of installation for a seamless upgrade.

Buying the **Dorman SX-3733 Fuel Tank Sending Unit Lock Ring** for a **1986 1991 Ford E-250 Super Duty** (or similar truck) can be a practical solution for a common issue, but it comes with its own set of advantages and drawbacks.

1. **Direct Fitment** Dorman parts are known for their compatibility with Ford vehicles, including the E-250 series. The SX-3733 is designed specifically for the fuel tank sending unit lock ring, ensuring a proper seal and secure installation.

2. **Reliability** Dorman is a trusted brand in the aftermarket, offering parts that are built to last. The lock ring is typically made from durable materials, reducing the risk of premature failure.

3. **Easy Installation** Replacing the lock ring is a straightforward job that can be done with basic tools. No major modifications are usually required, making it a quick fix for a common issue.

4. **Prevents Fuel Leaks** A faulty or missing lock ring can cause fuel leaks, which can be hazardous and damage the fuel system. Replacing it ensures a tight seal, reducing the risk of spills.

5. **Cost-Effective** Compared to replacing the entire fuel tank sending unit, the lock ring is a low-cost solution. It extends the life of the existing unit rather than requiring a full replacement.

6. **Widely Available** Dorman parts are stocked by most auto parts stores, making it easy to purchase without long waits or special ordering.

1. **Temporary Fix (If the Sending Unit is Failing)** While the lock ring itself may be functional, if the fuel sending unit is worn out or damaged, replacing just the lock ring won t resolve underlying issues like inaccurate fuel level readings or electrical failures.

2. **Potential for Reoccurrence** If the original lock ring failed due to wear or improper installation, the new one may also fail over time, especially if the fuel tank is frequently moved or jostled.

3. **Requires Disassembly** To replace the lock ring, you ll need to remove the fuel tank, which involves draining fuel, disconnecting lines, and potentially working in a tight space. This can be messy and time-consuming.

4. **Quality Variability** While Dorman is generally reliable, some aftermarket parts may not match the exact specifications of the original equipment, leading to slight inconsistencies in fit or performance.

5. **No Warranty on Installation Issues** The part itself may come with a warranty, but if installation is done improperly (e.g., not tightening correctly or damaging the tank), it could lead to leaks or further problems.

The **Dorman SX-3733 Fuel Tank Sending Unit Lock Ring** is a practical and cost-effective solution for addressing a leaking or loose lock ring in a **1986 1991 Ford E-250 Super Duty**. It is a reliable part that ensures a proper seal and prevents fuel leaks. However, if the issue stems from a failing fuel sending unit rather than just the lock ring, replacing only the lock ring may not fully resolve the problem.

- **If the lock ring is the only issue** (e.g., it s loose or cracked but the sending unit is otherwise functional), purchasing and installing the **Dorman SX-3733** is a wise choice. It s an affordable fix that can save you from a more expensive repair.

- **If the fuel sending unit is also malfunctioning** (e.g., giving incorrect fuel level readings or electrical failures), consider replacing the entire sending unit rather than just the lock ring. A new or rebuilt unit from a reputable brand (such as Dorman, Delphi, or Ford OEM) will provide long-term reliability.

- **Always follow proper installation procedures**, including ensuring the lock ring is securely tightened and the fuel tank is properly sealed to prevent leaks.

- **Check for leaks or damage** to the fuel tank itself before and after installation, as cracks or corrosion could lead to recurring issues.

For most cases where the lock ring is the sole problem, the **Dorman SX-3733 is a solid and recommended choice**. However, if the fuel system is showing signs of broader wear, addressing the root cause will ensure a more lasting solution.

Details:

Dorman Fuel Tank Sending Unit Lock Ring for 1986 - 1991 Ford E-250 Econoline su: Status: In Stock.

part #: sx3733 prices

• $23.99-$59.77

specifications fueltanksysteme:

• for models: E-250
• for makes: Ford
• for years: 1986-1991
• brand: Dorman Oe Solutions
• mpn: Sx-3733
• type: Fuel Tank Sending Unit Lock Ring
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item width: 6.300
• item height: 0.980
• item length: 7.090
• manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
• ipn: C342 14-46
• compatible model: E-250 Econoline Club Wagon
• compatible year: 1991 1990 1989 1988 1987 1986
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Dorman Fuel Tank Sending Unit Lock Ring

returns fueltanksysteme:

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

general fueltanksysteme:

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

payments fueltanksysteme:

• credit card: Diners-club
• other
• wallet: Paypal

offer fueltanksysteme:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 2
• started: May 8, 2026

shipping fueltanksysteme:

• transit: 3-6 Days
• class: Standard, Expedited
• cost: $0.00
• service: Standard, Expedited
• type: Fixed

seller fueltanksysteme:

• # reviews: 654873
• rating: 99.6%
• city: Indianapolis, Indiana

Dorman Oe Solutions SX-3733 Is Similar To:

• 019495103219 Dorman Fuel Vapor Leak Detection Pump (29.3% similar) This item has been cleaned and sanitized to ensure your complete satisfaction. Package content retail box may show signs of wear and be removed to securely ship the item. Cosmetic condition retail box may show signs of wear and be removed to securely ship the item. Get-warranty and enter the item ...(March 28th, 2018)
• 157-5509 Dorman Fuel Gas Tank Step Stair Lh Or Rh For (35.3% similar) Questions: were here for you. Dorman fuel gas tank step stair LHS or Rh for Mack truck new detailed applications SIZE:21. 9 of packages the same day if ordered before 4PM est...(January 8th, 2019)
• 285-5104 Dorman Fuel Sending Unit (36.1% similar) L6 diesel turbocharged page 1 of 30...(September 4th, 2018)
• 285-5110 Dorman Fuel Tank Sender (33.3% similar) Dorman designs packages and markets over different products manufactured to its specifications. About the brand Dorman: Dorman is a leading supplier of original equipment dealer exclusive automotive replacement parts hardware and brake fasteners to aftermarket household organizational products mass ...(June 28th, 2018)
• 285-5503 Dorman Fuel Sending Unit 019495423065 (41.1% similar) Dorman fuel sending unit Dorman restores proper gauge readings. Since this part is direct replacement, the exact fit adds another layer of convenience. All units include the necessary installation hardware and lock rings for a bolt-off bolt-on solution...(June 21st, 2018)
• 285-5504 Dorman Fuel Tank Sender (33.3% similar) Dorman designs packages and markets over different products manufactured to its specifications. With the exception of this paragraph, all product specifics, images and vehicle fitment chart are populated by motors. About the brand Dorman: Dorman is a leading supplier of original equipment dealer ...(July 22nd, 2018)
• 285-5506 Dorman First Stop Fuel Tank Sending Unit 019495423096 (49.4% similar) Just the option. Your satisfaction is our motivation. Our expertise your car is one of most important investments so we treat vehicle as the asset it...(September 17th, 2018)
• 285-5509 Fuel Senders Dorman Hd Solutions 019495423126 (28.6% similar) 96009 dimensions: in. Year make model...(January 15th, 2019)
• 310-202 Dorman Fuel Vapor Leak Detection (28.6% similar) Dorman Oe Solutions supplied your vehicles manufacturer with the fuel tank filler misc. All products are covered by manufacturers warranty. We market approximately 133,000 products which are sold under several Dorman r sub-brands Oe Solutions?, help. Emission code: 1FEATURE - benefit 2: direct ...(March 12th, 2017)
• 310-205 Dorman Fuel Vapor Leak Detection (28.6% similar) Life cycle status code 2LIFE cycle status available to order material plastic nation AL popularity code outlet outside diameter. 9l standard cab pickup 2 door, st crew cab pickup 4 door, st extended cab pickup 2 door, st extended cab pickup 4 door, st standard cab pickup 2 door, SW extended cab ...(December 15th, 2016)
• 310-208 Dorman Fuel Vapor Leak Detection Pump 019495103387 (27.8% similar) Emission code: 1FILTER included: no harmonized tariff schedule b inlet outside diameter. Brands: cortex automotive division, eng. Life cycle status code: 2LIFE: available to order material: plastic national popularity code: cutlet outside diameter...(March 23rd, 2018)