1. Air/Fuel Hoses, Lines & Pipes On Sale
  2. sku: 14595258781748531
  3. DODGE CUMMINS 3912137

FACTORY DODGE CUMMINS 3912137 Dsl Fuel Line D/w 250/350 Dsl.

fits model: 250, 350, Ram. make: Dodge. year: 1989–1991.

3912137 Factory Dodge Cummins 1989-1991 Ram D/w 250/350 Dsl. Fuel Return Line

( Brand: Factory Dodge Cummins ), ( Manufacturer Part Number: 3912137 ), ( Type: Fuel Return Line ), ( Fluid Type: Diesel ), ( Placement On Vehicle: Lh Back Side Of Side Cover )

Review FACTORY DODGE CUMMINS D/w 250/350 Dsl. Fuel Return Line fits RAM 250 350 1989–1991

The Dodge Cummins 3912137 fuel line is a crucial component for the 1989-1991 Ram D/W 250/350 diesel trucks. This fuel line is specifically designed to deliver diesel fuel from the fuel tank to the fuel injectors, ensuring optimal engine performance.

Measuring approximately 14 inches long, this fuel line is made of high-quality, reinforced rubber material. The rubber construction not only provides flexibility, but also offers excellent resistance to fuel, oil, and coolant, making it ideal for diesel applications. The line features a thick, sturdy wall to prevent collapsing under pressure, ensuring a consistent fuel supply to the engine.

The Dodge Cummins 3912137 fuel line is designed to fit seamlessly into the existing fuel system of the 1989-1991 Ram D/W 250/350 diesel trucks. It comes with a clamp and a filter, making it a complete, ready-to-install kit. The clamp is made of durable, rust-resistant material, ensuring a secure connection between the fuel line and the fuel components, preventing leaks. The filter, on the other hand, is designed to trap any impurities or contaminants present in the fuel, ensuring clean fuel delivery to the engine for enhanced performance and longevity.

This fuel line is an essential upgrade for any diesel enthusiast or commercial truck owner looking to maintain or improve the performance of their 1989-1991 Ram D/W 250/350 diesel truck. Its superior quality and durability make it a reliable replacement for the original fuel line, ensuring consistent fuel delivery and improved engine performance. With its easy installation process and complete kit, this Dodge Cummins 3912137 fuel line is an investment that pays for itself in terms of performance, reliability, and longevity.

The Dodge Cummins 3912137 fuel line is a critical component for diesel engines in Ram trucks from the 1989 to 1991 model years with 250 and 350 horsepower. Replacing this fuel line may be necessary due to normal wear and tear or due to engine upgrades. In this discussion, we will weigh the pros and cons of buying this fuel line to help you make an informed decision.

Pros:

1. Improved Engine Performance: A new fuel line ensures that fuel is delivered efficiently and consistently to the engine, leading to improved engine performance.

2. Reduced Risk of Fuel Leaks: A new fuel line reduces the risk of fuel leaks, which can lead to safety concerns and potential engine damage.

3. Longer Lifespan: A new fuel line will last longer than a used or worn-out one, saving you time and money in the long run.

4. Peace of Mind: Replacing the fuel line with a new one provides peace of mind, knowing that a critical component of your engine is functioning properly.

Cons:

1. Cost: The cost of a new fuel line can be significant, especially when compared to the cost of a used or aftermarket fuel line.

2. Installation Complexity: Installing a new fuel line can be a complex and time-consuming process, requiring specialized tools and knowledge.

3. Potential for Other Issues: Replacing the fuel line does not guarantee that other engine issues will not arise.

Conclusion:

The decision to buy a new Dodge Cummins 3912137 fuel line depends on your individual circumstances. If you value improved engine performance, reduced risk of fuel leaks, and longer lifespan, then the investment in a new fuel line is worthwhile. However, if cost is a significant concern or you are unsure of your installation abilities, then considering a used or aftermarket fuel line may be a more cost-effective option. Ultimately, it is essential to weigh the pros and cons carefully and consult with a qualified mechanic if necessary.

Recommendation:

If you are confident in your installation abilities and value improved engine performance and reduced risk of fuel leaks, then investing in a new Dodge Cummins 3912137 fuel line is recommended. If cost is a significant concern, then considering a used or aftermarket fuel line may be a more cost-effective option. However, it is essential to ensure that any used or aftermarket fuel line meets the necessary specifications and is of good quality to ensure proper engine function and safety.

Details:

Good used fuel return line as pictured. Fits 1989 to 1991. The steel line that runs from the fuel tank connects to this with a rubber hose. This was removed from a 1991 Dodge Ram D-250 3/4- ton club cab truck equipped with the 5.9 Cummins turbo diesel engine and automatic transmission 2 wheel drive.

part #: 3912137 prices

  • $60.00-$87.95

specifications airintakesystemse:

  • for models: 250, 350, Ram
  • for makes: Dodge
  • for years: 1989-1991
  • brand: Factory Dodge Cummins
  • mpn: 3912137
  • type: Fuel Return Line
  • fluid type: Diesel
  • placement on vehicle: Lh Back Side Of Side Cover

returns airintakesystemse:

  • policy: No Returns

general airintakesystemse:

  • condition: Used
  • Car Truck Parts Accessories > Air Fuel Delivery > Hoses, Lines Pipes

shipping airintakesystemse:

  • transit: 5-10 Days
  • carrier: USPS
  • type: Calculated
  • class: Standard
  • service: USPS Ground Advantage
  • cost: $0.00

payments airintakesystemse:

  • wallet: Apple-pay
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  • credit card: Discover

seller airintakesystemse:

  • rating: 100.0%
  • # reviews: 9559
  • city: Paris, Arkansas

offer airintakesystemse:

  • sold: 0
  • started: May 23, 2025
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
for models: 250, 350, ram, for makes: dodge, for years: 1989-1991, type: fuel return line, fluid type: diesel, placement on vehicle: lh back side of side cover,
category: auto parts > car truck parts accessories > air fuel delivery > hoses, lines pipes, sku: 14595258781748531,
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2 offers $60.00–$87.95 USD
  • Used. Offer #1 priced at $60.00 + $15.99 shipping estimate = $75.99* total. +$15.99 shipping
  • New. Offer #2 priced at $87.95 + $0.00 shipping estimate = $87.95* total. FREE SHIPPING

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