NETUERA 581658 Diesel Sending Unit Rear Tank

( Brand: Netuera ), ( Manufacturer Part Number: 581658 ), ( Voltage: 6 V, 12 V ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: No ), ( Type: Fuel Sending Unit ), ( Fuel Type: Diesel ), ( Oe Part Number: Fmsu-5der ), ( Placement On Vehicle: Fuel Tank ), ( Drive Type: Electrical )

Review NETUERA Ford Diesel Pickup Sending Unit The Rear Tank Only fits F250 F350 1987–1989

The **Netuera 581658 Fuel Sending Unit for 1987 1989 Ford F-250 and F-350 Diesel Trucks (Rear Tank Mount)** is a precision-engineered, high-performance replacement component designed to seamlessly integrate with the fuel system of these iconic diesel-powered workhorses. Engineered to meet or exceed OEM specifications, this sending unit is crafted from durable materials to ensure long-lasting reliability, even under the demanding conditions of heavy-duty trucking, towing, or off-road adventures. The unit features a robust, corrosion-resistant housing that protects its internal components from moisture, debris, and the harsh elements encountered in rugged environments, while its sealed construction prevents fuel leaks and contamination. At its core, the sending unit incorporates a high-precision potentiometer that accurately monitors fuel level fluctuations in the rear tank, providing real-time feedback to the vehicle s fuel gauge for precise readings. This ensures drivers maintain optimal fuel reserves without the guesswork, reducing the risk of running dry or overfilling the tank a critical consideration for long-haul operators or those hauling heavy loads. Compatible exclusively with the rear-mounted fuel tanks of the 1987 through 1989 Ford F-250 and F-350 diesel models, this sending unit is a direct-fit replacement for the original equipment, eliminating the need for modifications or adapters. Its straightforward installation process, coupled with a secure mounting bracket, allows for quick and hassle-free swaps, minimizing downtime for maintenance. Whether restoring a classic diesel rig to its original functionality or upgrading an existing system for enhanced performance, this Netuera sending unit delivers the accuracy, durability, and peace of mind that diesel enthusiasts and fleet owners demand. Built to withstand the rigors of daily use, it stands as a testament to Netuera s commitment to quality and compatibility, ensuring your Ford diesel continues to operate with the efficiency and dependability it was engineered for.

**Pros and Cons of Buying a Netuera 581658 Fuel Sending Unit for a 1987-1989 Ford F-250/F-350 Diesel (Rear Tank)**

1. **Compatibility and Fit:** The Netuera 581658 is specifically designed for the 1987-1989 Ford F-250/F-350 diesel models with rear-mounted fuel tanks. This ensures a proper fit without modifications, reducing the risk of leaks or misalignment.

2. **Reliability:** Netuera is a reputable manufacturer known for producing high-quality fuel system components. Their sending units are built to withstand the demands of diesel engines, offering durability and consistent performance.

3. **Accurate Fuel Level Readings:** A properly functioning sending unit ensures that the fuel gauge provides accurate readings, helping you monitor fuel levels without guesswork. This is particularly useful for long-haul trucking or off-road use.

4. **Easy Installation:** The unit is designed for straightforward installation, often requiring minimal tools. Many users report being able to replace it in under an hour, reducing downtime.

5. **Cost-Effective Replacement:** Compared to rebuilding or repairing a faulty original unit, purchasing a new Netuera sending unit is often more economical. It also prevents potential damage to the fuel pump or tank from a failing sensor.

6. **Compatibility with Aftermarket Upgrades:** If you ve modified your fuel system (e.g., added auxiliary tanks or upgraded pumps), a reliable sending unit ensures the gauge remains functional and accurate.

7. **Warranty Coverage:** Netuera typically offers warranties on their products, providing peace of mind in case of defects or premature failure.

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1. **Price:** While generally reasonable, the cost of a Netuera sending unit may still be a concern for budget-conscious buyers, especially if purchasing from an authorized dealer or aftermarket specialist.

2. **Potential Counterfeit Concerns:** The aftermarket for diesel parts can sometimes include counterfeit or low-quality replicas. Buying from unverified sellers may result in a faulty or incompatible unit. Always purchase from trusted suppliers (e.g., RockAuto, Summit Racing, or authorized Netuera dealers).

3. **Installation Challenges:** Although designed for ease of use, some users may encounter difficulties if they lack experience with fuel system repairs. Improper installation (e.g., loose wiring, incorrect grounding) could lead to gauge malfunctions or electrical issues.

4. **Limited Availability:** Depending on your location, stock may be inconsistent, requiring advance ordering or waiting for shipment. This could delay repairs if you re on a tight schedule.

5. **Compatibility with Modified Systems:** If your truck has been heavily modified (e.g., custom fuel tanks, electronic fuel gauges, or aftermarket ECU tuning), the sending unit may need additional adjustments or a compatible gauge to function correctly.

6. **Potential for Gauge Inaccuracy:** While the sending unit itself is reliable, the gauge on the dashboard may still show inaccuracies if it s damaged or if there s an issue with the wiring harness. Replacing the unit won t fix gauge-related problems.

7. **Environmental Factors:** Diesel fuel tanks are prone to sludge buildup, which can affect the sending unit s float mechanism over time. Regular tank cleaning may be necessary to maintain long-term accuracy.

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The Netuera 581658 fuel sending unit is a **strong, practical choice** for restoring accurate fuel level readings in your 1987-1989 Ford F-250/F-350 diesel truck. Its compatibility, reliability, and ease of installation make it a superior alternative to a failing original unit or a generic aftermarket part. However, the decision should consider factors like budget, sourcing authenticity, and potential installation challenges.

For most users, the **benefits outweigh the drawbacks**, especially if you prioritize accuracy, longevity, and peace of mind. If you re unsure about installation, consulting a mechanic or diesel specialist can ensure the job is done correctly.

- **Buy from a trusted source** (e.g., RockAuto, Summit Racing, or a local diesel parts shop) to avoid counterfeit units.

- **Verify compatibility** with your exact model year and fuel system configuration.

- **Inspect wiring and the gauge** before installation to rule out unrelated issues.

- **Follow installation instructions carefully** to prevent electrical or mechanical problems.

- **Consider a fuel tank cleaning** if the unit s accuracy degrades over time due to sludge.

**Final Verdict:** The Netuera 581658 is a **highly recommended replacement** for your truck s fuel sending unit, provided you address potential pitfalls like sourcing and installation. It s a cost-effective way to restore proper fuel monitoring and avoid further complications.

Details:

Will NOT work with GAS engines. For 1987 1989 Ford Full-Size Pickup 19 gallon DIESEL ENGINE ONLY rear tank sending unit. W/O Product Instruction. Ohm range: Full 155-165, Empty 5-15.

Placement on Vehicle:Fuel Tank. Item Type:Fuel Sending Unit. 1 Year Warranty. Easy to install, Direct replacement.

Includes a new lock ring and O-ring but does NOT include the in-tank funnel filter. High Quality, Customer - Service, Affordable Prices. Feature: 100% New and High Quality.

part #: 581658 price

• $22.46

specifications fueltanksysteme:

• for models: F250, F350
• for makes: Ford
• for years: 1987-1989
• brand: Netuera
• mpn: 581658
• voltage: 6 V, 12 V
• manufacturer warranty: 1 Year
• universal fitment: No
• type: Fuel Sending Unit
• fuel type: Diesel
• oe part number: Fmsu-5der
• placement on vehicle: Fuel Tank
• drive type: Electrical

offer fueltanksysteme:

• sold: 0
• quantity: 5
• started: February 11, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home

payments fueltanksysteme:

• credit card: Discover
• other
• wallet: Paypal

seller fueltanksysteme:

• city: Monroe Township, New Jersey
• rating: 99.4%
• # reviews: 28818

general fueltanksysteme:

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

returns fueltanksysteme:

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

shipping fueltanksysteme:

• service: Standard
• transit: 3-8 Days
• class: Standard
• type: Fixed
• cost: $0.00

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