DELPHI SX-5878 Mechanical Fuel Pump 6.6L 7.4L

( Brand: Delphi ), ( Type: Mechanical Fuel Pump ), ( Manufacturer Part Number: SX-5878 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C778 50-40 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Pumps ), ( Compatible Model: C15/c1500 Suburban ), ( Compatible Year: 1974 1973 1972 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Mechanical Fuel Pump )

Review DELPHI Mechanical Fuel Pump Gmc C15 6.6l 7.4l fits SUBURBAN C1500 RX 1972–1974

The Delphi SX-5878 mechanical fuel pump is an excellent replacement option for the mechanical fuel pumps used in 1972-1974 GMC Suburans with the 6.6L and 7.4L 150/1500 C15 engines. This fuel pump is specifically designed to provide reliable and consistent fuel delivery to your vehicle's engine, ensuring optimal performance and efficient operation.

The Delphi SX-5878 mechanical fuel pump features a robust, cast iron housing that is built to withstand the rigors of daily driving. This heavy-duty construction not only ensures durability but also helps to minimize the potential for fuel leaks, providing you with peace of mind and confidence on the road.

The pump's internal components, including the impeller and shaft, are engineered for strength and durability. The impeller is designed to efficiently suck fuel from the tank and deliver it to the engine, while the shaft is precision-machined to ensure smooth operation and long-lasting performance.

The Delphi SX-5878 mechanical fuel pump also includes a built-in fuel filter, which helps to remove any debris or contaminants from the fuel before it reaches the engine. This not only improves the overall performance of your vehicle but also helps to extend the life of the engine by keeping it free of harmful particles.

Installation of the Delphi SX-5878 mechanical fuel pump is straightforward and can typically be completed in a relatively short amount of time. The pump comes with all necessary hardware for installation, and the included instructions make the process easy to follow, even for those without extensive mechanical experience.

Overall, the Delphi SX-5878 mechanical fuel pump is an excellent choice for those looking to replace the fuel pump in their 1972-1974 GMC Suburban with the 6.6L and 7.4L 150/1500 C15 engines. With its durable construction, efficient fuel delivery, and easy installation process, this pump offers the reliability and performance you need to keep your vehicle running smoothly.

The Delphi SX-5878 mechanical fuel pump is a popular replacement option for the mechanical fuel pumps used in 1972-1974 GMC Suburban models with the 6.6L and 7.4L 6-cylinder engines. Here are some pros and cons to help you make an informed decision about purchasing this fuel pump:

1. Durability: Mechanical fuel pumps, unlike their electric counterparts, have fewer moving parts and are generally more durable. The Delphi SX-5878 is known for its robustness and reliability.

2. Easy Installation: Mechanical fuel pumps do not require complex wiring or electrical connections, making installation relatively simple. This can save you time and money, especially if you plan to install it yourself.

3. Cost-effective: The Delphi SX-5878 is often more affordable than electric fuel pumps, making it a budget-friendly option for those looking to replace their failing mechanical fuel pump.

4. Availability: Mechanical fuel pumps, including the Delphi SX-5878, are widely available from various automotive parts retailers, both online and in-store.

1. Noise: Mechanical fuel pumps can be louder than electric pumps due to the moving parts. This may not be a significant concern for some, but it can be a drawback for those looking for a quieter engine compartment.

2. Fuel Efficiency: Mechanical fuel pumps can consume some fuel due to their design, which can slightly decrease fuel efficiency. However, the impact on fuel economy is generally minimal.

3. Vibration: Mechanical fuel pumps can cause more vibration compared to electric pumps, which may lead to premature wear or damage to other components.

In conclusion, the Delphi SX-5878 mechanical fuel pump is a reliable, cost-effective, and easy-to-install option for those with 1972-1974 GMC Suburban models requiring a fuel pump replacement. While it may not be as quiet or efficient as electric fuel pumps, its durability and simplicity make it a popular choice among many vehicle owners in this situation. Ultimately, the decision to purchase the Delphi SX-5878 mechanical fuel pump depends on your personal preferences, budget, and installation experience. If you prioritize a simple, affordable, and durable solution, then the Delphi SX-5878 is an excellent choice. However, if quiet operation and maximum fuel efficiency are your top priorities, you may want to consider an electric fuel pump instead.

Details:

Delphi Mechanical Fuel Pump for 1972-1974 GMC C15 C1500 Suburban 6.6L 7.4L Rx: Status: In Stock.

part #: sx5878 prices

• $33.66-$49.49

specifications pumpunite:

• for models: C1500, Rx, Suburban
• for makes: Gmc
• for years: 1972-1974
• brand: Delphi
• type: Mechanical Fuel Pump
• manufacturer part number: SX-5878
• manufacturer warranty: 1 Year / 12, 000 Miles
• interchange part number: C778 50-40
• placement on vehicle: Air Fuel Delivery Fuel Pumps
• compatible model: C15/c1500 Suburban
• compatible year: 1974 1973 1972
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Mechanical Fuel Pump

offer pumpunite:

• sold: 0
• quantity: 2
• availability: In Stock
• started: October 11, 2025
• options: Ship-to-home

returns pumpunite:

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

payments pumpunite:

• other
• credit card: Diners-club
• wallet: Google-pay

shipping pumpunite:

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

seller pumpunite:

• rating: 99.0%
• # reviews: 579071
• city: Indianapolis, Indiana

general pumpunite:

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

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