1. Used Automotive Fuel Pumps & Sending Units Offers
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  3. CARTER SX-6644

CARTER SX-6644 Mechanical Fuel Air Pump 5.0L 5.7L 6.6L V8

fits model: Rz, Jimmy. make: Gmc. year: 1978–1986.

Sx-6644 Carter Mechanical Fuel Pump For 1978-1986 Gmc Jimmy 5.0l 5.7l 6.6l V8 Air Rz

( Brand: Carter ), ( Type: Mechanical Fuel Pump ), ( Manufacturer Part Number: SX-6644 ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C471 68-25 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Pumps ), ( Compatible Model: Jimmy ), ( Compatible Year: 1986 1985 1984 1983 1982 1981 1980 1979 1978 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Carter Mechanical Fuel Pump )

Review CARTER Mechanical Fuel Pump Gmc 5.0l 5.7l 6.6l V8 Air fits JIMMY RZ 1978–1986

Introducing the Carter SX-6644 Mechanical Fuel Pump, specifically designed for 1978 to 1986 GMC Jimmy models equipped with 5.0L, 5.7L, and 6.6L V8 engines. This fuel pump is an essential component of your vehicle's fuel delivery system, ensuring a reliable and consistent flow of gasoline from the tank to the engine.

The Carter SX-6644 Mechanical Fuel Pump is a robust and durable piece of automotive engineering. It boasts a high-performance design, which translates into improved fuel economy and better engine performance. The fuel pump is constructed from premium materials, including cast iron housing and a carbon ceramic rotor. These materials are known for their durability and resistance to wear and tear, ensuring a long service life.

This mechanical fuel pump operates using the vacuum created by the engine's intake system. It features a large, 3/4-inch inlet and a 5/16-inch outlet, allowing for optimal fuel flow. The pump's impeller is designed for efficient fuel pickup and delivery, ensuring that your engine receives a consistent and adequate fuel supply under various driving conditions.

The Carter SX-6644 Mechanical Fuel Pump is easy to install, making it an excellent choice for DIY enthusiasts. It comes with all necessary hardware, including mounting brackets, gaskets, and seals, to ensure a secure and leak-free installation. The pump also features a durable, zinc-coated steel base plate and a reinforced, viton diaphragm, ensuring that it can withstand the rigors of daily driving.

In summary, the Carter SX-6644 Mechanical Fuel Pump is a high-quality and reliable replacement option for your 1978 to 1986 GMC Jimmy's fuel pump. Its robust design, efficient fuel delivery, and easy installation make it an excellent choice for those seeking improved engine performance and fuel economy.

Carter SX-6644 Mechanical Fuel Pump for 1978-1986 GMC Jimmy: A Comprehensive Analysis

Introduction:

The Carter SX-6644 mechanical fuel pump is a popular aftermarket replacement option for the fuel pumps in 1978-1986 GMC Jimmy vehicles with 5.0L, 5.7L, and 6.6L V8 engines. In this analysis, we will discuss the key features, advantages, and disadvantages of this fuel pump to help you make an informed decision.

Features:

1. Mechanical design: The Carter SX-6644 fuel pump is a mechanical pump, which means it doesn't rely on an electrical signal to operate. This can be advantageous in situations where the vehicle's electrical system may fail.

2. Easy installation: The fuel pump comes pre-assembled, making the installation process relatively straightforward.

3. Durability: The pump housing is made of cast iron, ensuring durability and resistance to wear and tear.

Advantages:

1. Improved performance: The Carter SX-6644 fuel pump can help improve engine performance by delivering a consistent fuel supply to the engine.

2. Cost-effective: Compared to the cost of a new OEM fuel pump or the labor costs associated with a professional repair, the Carter SX-6644 is a more cost-effective solution.

3. Availability: The Carter SX-6644 fuel pump is widely available from various automotive parts retailers, both online and in-store.

Disadvantages:

1. Louder operation: Mechanical fuel pumps, including the Carter SX-6644, can be louder than their electric counterparts. This may be a concern for some buyers.

2. Fuel pressure: The Carter SX-6644 fuel pump may not provide the exact fuel pressure as the OEM pump, which could negatively impact engine performance in some instances.

3. Adjustment required: Depending on the specific application, the Carter SX-6644 fuel pump may require adjustment to achieve the optimal fuel pressure.

Conclusion:

The Carter SX-6644 mechanical fuel pump offers several advantages, including improved performance, cost-effectiveness, and availability. However, it also comes with some disadvantages, such as louder operation and potential fuel pressure inconsistencies. Ultimately, the decision to purchase the Carter SX-6644 fuel pump depends on your personal preferences, budget, and the specific requirements of your vehicle. If you prioritize a cost-effective, easy-to-install solution and are willing to accept the potential trade-offs, the Carter SX-6644 mechanical fuel pump could be an excellent choice for your 1978-1986 GMC Jimmy.

Recommendation:

If you're in the market for a fuel pump replacement for your 1978-1986 GMC Jimmy with a 5.0L, 5.7L, or 6.6L V8 engine, consider the Carter SX-6644 mechanical fuel pump. It offers several advantages, such as ease of installation, durability, and cost-effectiveness. Be aware that it may operate louder than an electric fuel pump and could require fuel pressure adjustments depending on your specific application. Weigh the pros and cons carefully before making your decision and ensure that it's the best fit for your vehicle and driving preferences.

Details:

Carter Mechanical Fuel Pump for 1978 1986 GMC Jimmy 5.0L 5.7L 6.6L V8 Air Rz: Status: In Stock.

specifications pumpunite:

  • for models: Rz, Jimmy
  • for makes: Gmc
  • for years: 1978-1986
  • brand: Carter
  • type: Mechanical Fuel Pump
  • manufacturer part number: SX-6644
  • manufacturer warranty: 1 Year
  • interchange part number: C471 68-25
  • placement on vehicle: Air Fuel Delivery Fuel Pumps
  • compatible model: Jimmy
  • compatible year: 1986 1985 1984 1983 1982 1981 1980 1979 1978
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Carter Mechanical Fuel Pump

returns pumpunite:

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

general pumpunite:

  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Fuel Pumps Sending Units

offer pumpunite:

  • availability: In Stock
  • started: June 21, 2025
  • sold: 0
  • quantity: 7
  • options: Ship-to-home

seller pumpunite:

  • rating: 98.8%
  • city: Indianapolis, Indiana
  • # reviews: 558327

shipping pumpunite:

  • transit: 4-9 Days
  • cost: $0.00
  • service: Standard, Expedited
  • type: Fixed
  • class: Standard, Expedited

payments pumpunite:

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  • wallet: Google-pay
  • credit card: Diners-club
for models: rz, jimmy, for makes: gmc, for years: 1978-1986, type: mechanical fuel pump, manufacturer warranty: 1 year, placement on vehicle: air fuel delivery fuel pumps, compatible model: jimmy, compatible year: 1986 1985 1984 1983 1982 1981 1980 1979 1978, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine carter mechanical fuel pump,
category: auto parts > car truck parts accessories > air fuel delivery > fuel pumps sending units, sku: 7994117442924792,

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