DELPHI SX-4009 Mechanical Fuel Air Pump Md J20 5.9L 6.6L V8

( Brand: Delphi ), ( Type: Mechanical Fuel Pump ), ( Manufacturer Part Number: SX-4009 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C629 77-19 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Pumps ), ( Compatible Model: J20 ), ( Compatible Year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Mechanical Fuel Pump )

Review DELPHI Mechanical Fuel Pump Jeep J20 5.9l 6.6l V8 Air Delivery Md fits 1976–1988

The Delphi SX-4009 mechanical fuel pump is an essential component for the 1976-1988 Jeep J20 vehicles equipped with the 5.9L and 6.6L V8 engines. This fuel pump is designed to deliver fuel from the tank to the engine, ensuring a reliable and consistent performance.

This Delphi mechanical fuel pump features a robust design with a durable cast aluminum housing, which provides excellent heat dissipation and resistance to corrosion. The pump uses a diaphragm-type design with a single lobe rotor, which creates a uniform suction and pressure wave to ensure efficient fuel delivery. The pump is also equipped with a built-in fuel filter, which helps to remove any impurities or contaminants from the fuel, thus preventing damage to the engine.

The Delphi SX-4009 fuel pump is easy to install and comes with all necessary hardware for a straightforward replacement. It is also compatible with both gasoline and diesel fuel systems, making it a versatile option for Jeep J20 owners. The pump operates at a standard voltage range of 12 volts and has a flow rate of 32 gallons per hour, ensuring adequate fuel supply to the engine.

The Delphi SX-4009 mechanical fuel pump is a high-quality and reliable replacement option for the original equipment in 1976-1988 Jeep J20 vehicles. Its robust design, efficient fuel delivery, and easy installation make it an excellent choice for Jeep enthusiasts looking to maintain or upgrade their vehicles. With a commitment to quality and reliability, Delphi is a trusted name in automotive parts, and the SX-4009 mechanical fuel pump is no exception.

Delphi SX-4009 Mechanical Fuel Pump for 1976-1988 Jeep J20 (5.9L & 6.6L V8): Pros, Cons, and Recommendation

The Delphi SX-4009 mechanical fuel pump is a popular replacement option for the 1976-1988 Jeep J20 models with 5.9L and 6.6L V8 engines. In this analysis, we will discuss the essential features, benefits, drawbacks, and a final recommendation of this fuel pump.

1. Durability: The Delphi SX-4009 mechanical fuel pump is known for its robust design and high durability. It is built to withstand the demands of heavy-duty applications, making it an excellent choice for the Jeep J20's powerful V8 engines.

2. Easy Installation: This mechanical fuel pump comes with a simple plug-and-play installation process. It doesn't require any complex modifications or additional components, making it a convenient option for DIY enthusiasts.

3. OE-Quality Performance: Delphi is a reputable automotive parts manufacturer, and the SX-4009 fuel pump offers OE-level performance. This ensures that your Jeep J20's fuel system functions efficiently and effectively, delivering consistent power and reliability.

1. Noise: Some users have reported that the Delphi SX-4009 mechanical fuel pump can generate more noise than the original OEM pump. This can be due to the design differences or the quality of materials used in the pump.

2. Price: Compared to some aftermarket options or rebuilt fuel pumps, the Delphi SX-4009 may appear to be pricier. However, its durability, ease of installation, and OE-quality performance may justify the investment.

3. Limited Availability: Although the Delphi SX-4009 mechanical fuel pump is available at various auto parts retailers and online platforms, it might not be as widely available as some other options in the market.

The Delphi SX-4009 mechanical fuel pump for the 1976-1988 Jeep J20 (5.9L & 6.6L V8) offers several advantages, including durability, easy installation, and OE-quality performance. However, it also comes with potential drawbacks like noise and a higher price tag compared to some alternatives.

Despite these cons, the Delphi SX-4009 fuel pump's robust design, reliable performance, and convenience during installation make it a solid choice for Jeep J20 owners. If you are looking for a long-lasting and efficient solution to replace your old fuel pump, the Delphi SX-4009 is a recommended option.

Details:

Delphi Mechanical Fuel Pump for 1976 1988 Jeep J20 5.9L 6.6L V8 Air Delivery md: Status: In Stock.

part #: sx4009 prices

• $37.43-$113.75

specifications pumpunite:

• for makes: Jeep
• for years: 1976-1988
• brand: Delphi
• type: Mechanical Fuel Pump
• manufacturer part number: SX-4009
• manufacturer warranty: 1 Year / 12, 000 Miles
• interchange part number: C629 77-19
• placement on vehicle: Air Fuel Delivery Fuel Pumps
• compatible model: J20
• compatible year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Mechanical Fuel Pump

general pumpunite:

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

shipping pumpunite:

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

payments pumpunite:

• other
• credit card: Visa
• wallet: Google-pay

seller pumpunite:

• city: Indianapolis, Indiana
• rating: 99.0%
• # reviews: 579166

returns pumpunite:

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

offer pumpunite:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: October 11, 2025
• availability: In Stock

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