AC DG40503 Gm Fuel Pump

( Brand: Ac ), ( Type: Fuel Pump ), ( Manufacturer Part Number: DG40503 ), ( Drive Type: Mechanical ), ( Country Of Origin: United States ), ( Fuel Type: Gasoline )

Review AC Gm Fuel Pump #dg40503 Used fits 1967–1972

AC Delco Fuel Pump (ACDG40503) - 1967-1972 GM Applications

The AC Delco ACDG40503 Fuel Pump is a crucial component in the fuel delivery system for select 1967-1972 General Motors vehicles. This fuel pump is engineered to meet Original Equipment (OE) specifications, ensuring reliable and efficient performance for your classic GM automobile.

The ACDG40503 fuel pump is designed with a robust construction, featuring a durable cast aluminum housing that protects the internal components from harsh environmental conditions. The pump utilizes a mechanical design with an impeller that creates suction to draw fuel from the tank and delivers it to the engine for combustion. The fuel pump also includes a built-in strainer that helps prevent debris from entering the fuel system and potentially causing damage.

The AC Delco ACDG40503 fuel pump is specifically engineered for GM applications and is compatible with various models such as Chevrolet, Oldsmobile, Buick, and Pontiac. The pump is designed to fit and function seamlessly within the existing fuel system of these vehicles, making it a popular choice for classic car enthusiasts and restoration projects.

This fuel pump is backed by AC Delco's commitment to quality and reliability. AC Delco is a leading aftermarket supplier of automotive replacement parts, and the ACDG40503 fuel pump is no exception. With a focus on OE-style construction and performance, this fuel pump is an excellent choice for those seeking to maintain or restore their classic GM vehicles.

In conclusion, the AC Delco ACDG40503 Fuel Pump is an essential component for maintaining the fuel delivery system of 1967-1972 GM vehicles. Its robust construction, compatibility with various GM models, and commitment to OE-style performance make it a top choice for classic car enthusiasts and restoration projects.

Buying a GM fuel pump, such as the AC Delco DG40503, for 1967-1972 GM vehicles can be a worthwhile investment to ensure proper fuel delivery to the engine. Here are some potential pros and cons to consider before making a purchase:

1. Improved engine performance: A new fuel pump can help improve engine performance by ensuring consistent fuel flow to the engine.

2. Increased fuel efficiency: A properly functioning fuel pump can help improve fuel efficiency by ensuring that fuel is delivered efficiently to the engine.

3. Reliability: A new fuel pump can provide greater reliability compared to an old, worn-out pump, reducing the risk of fuel delivery issues and potential engine damage.

4. Peace of mind: Replacing a faulty fuel pump with a new one can provide peace of mind, knowing that your vehicle's fuel system is functioning optimally.

5. Compatibility: The AC Delco DG40503 is specifically designed for 1967-1972 GM vehicles, ensuring a perfect fit and compatibility.

1. Cost: Replacing a fuel pump can be an expensive repair, especially if other related components, such as the fuel filter or fuel tank, also need to be replaced.

2. Labor costs: The cost of labor for replacing a fuel pump can add significantly to the overall cost of the repair.

3. Time: Replacing a fuel pump can take several hours, depending on the vehicle and the experience of the mechanic.

4. Risk of fuel leak: During the replacement process, there is a risk of fuel leakage, which can be a messy and potentially dangerous situation.

5. Complexity: Replacing a fuel pump can be a complex process that requires specialized tools and knowledge, making it a job best left to a professional mechanic.

In conclusion, while replacing a fuel pump can be an expensive and time-consuming repair, the benefits of improved engine performance, increased fuel efficiency, reliability, peace of mind, and compatibility make it a worthwhile investment for 1967-1972 GM vehicle owners. It is recommended to have the fuel system inspected by a professional mechanic to ensure that the fuel pump is the only component in need of replacement, and to consider the cost, labor, and complexity of the repair before making a decision.

Details:

Jim 1967 - 1972 GM Fuel Pump AC # DG40503-Used. This item has been in my storage unit for 10 yrs. Probably would need to be re-built. No Original Box.

No notification on box as to if working when stored .No warranty. We SALE/Ship to the lower 48 only.

part #: dg40503 prices

• $75.00-$208.80

specifications pumpunite:

• for years: 1967-1972
• brand: Ac
• type: Fuel Pump
• manufacturer part number: DG40503
• drive type: Mechanical
• country of origin: United States
• fuel type: Gasoline

shipping pumpunite:

• carrier: USPS
• class: Expedited
• transit: 3-10 Days
• cost: $12.25
• type: Calculated
• service: USPS Priority Mail

general pumpunite:

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

returns pumpunite:

• paid by: Buyer
• policy: Returns Accepted
• time: 14 Days

seller pumpunite:

• city: Knoxville, Tennessee
• # reviews: 678
• rating: 100.0%

payments pumpunite:

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

offer pumpunite:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: January 14, 2026

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