OLDSMOBILE 40523 Ac Delco Fuel Pump F-85 A/c

( Type: Fuel Pump ), ( Fuel Type: Gasoline ), ( Drive Type: Mechanical ), ( Manufacturer Part Number: 40523 )

Review OLDSMOBILE Oem Ac Delco Fuel Pump F-85 A/c fits TORONADO 400 425 455 1967-70

Introducing the 40523 AC Delco Fuel Pump, specifically designed for Oldsmobile models with the engine codes F-85, 400, 425, and 455, and produced between the years 1967 and 1970, including the iconic Toronado. This fuel pump is a vital component of your vehicle's fuel system, responsible for delivering fuel from the tank to the engine under high pressure.

The 40523 AC Delco Fuel Pump is an OE (Original Equipment) replacement part, meaning it is engineered and manufactured to meet the same exacting specifications as the original equipment that came with your Oldsmobile. This ensures optimal performance, reliability, and longevity.

This fuel pump features a robust and durable design. The housing is made from high-quality materials that can withstand the harsh conditions of your fuel system, while the internal components are designed to handle the high fuel pressure and volume required by your Oldsmobile engine. The pump utilizes a mechanical design, which is known for its simplicity, reliability, and longevity.

The 40523 AC Delco Fuel Pump comes complete with all necessary mounting hardware, making the installation process as straightforward as possible. It is also compatible with both gasoline and ethanol-blended fuels, giving you the flexibility to choose the fuel that best suits your driving needs.

This fuel pump is covered by AC Delco's warranty, which provides peace of mind and protection against any manufacturing defects. The warranty term and coverage details can be found in the product documentation that comes with the pump.

In conclusion, the 40523 AC Delco Fuel Pump is a top-quality replacement part designed specifically for Oldsmobile F-85, 400, 425, and 455 engines produced between 1967 and 1970. It offers superior performance, durability, and ease of installation, making it the ideal choice for Oldsmobile owners seeking to keep their classic vehicles running at their best.

Oldsmobile F-85 Toronado (1967-70) AC Fuel Pump (40523 AC Delco) - Pros and Cons

The Oldsmobile F-85 Toronado (1967-70) AC Fuel Pump (40523 AC Delco) is a common replacement part for those looking to restore or repair their classic vehicles. In this analysis, we'll discuss the pros and cons of purchasing this fuel pump to help you make an informed decision.

1. Brand Reputation: AC Delco is a well-known and reputable automotive parts manufacturer. The company has been producing high-quality parts for decades, which may give consumers confidence in the reliability and durability of the fuel pump.

2. Direct Fitment: The 40523 AC Delco fuel pump is specifically designed for Oldsmobile F-85 Toronados from 1967 to 1970. This ensures a perfect fit and eliminates the need for modifications or customization.

3. OEM-like Performance: The fuel pump is engineered to provide OEM-like performance. This means that it should function as well as the original part, ensuring proper fuel delivery to the engine.

4. Warranty Coverage: AC Delco offers a warranty on the fuel pump, which may provide peace of mind for those who want to protect their investment.

1. Cost: The 40523 AC Delco fuel pump may be more expensive than some aftermarket or used alternatives. This could be a significant factor for those working on a tight budget.

2. Availability: Depending on the location and the specific retailer, the fuel pump may not always be readily available. This could result in longer wait times for those needing a replacement part urgently.

3. Potential Shipping Delays: If the fuel pump is not in stock at a local retailer or if it needs to be shipped from a distributor, there could be delays in receiving the part.

The 40523 AC Delco fuel pump for the Oldsmobile F-85 Toronado (1967-70) offers several advantages, including brand reputation, direct fitment, OEM-like performance, and warranty coverage. However, it also comes with potential drawbacks such as cost, availability, and potential shipping delays. Ultimately, the decision to purchase this fuel pump depends on individual circumstances, including budget, urgency, and personal preference. If the advantages outweigh the disadvantages and the fuel pump fits within the budget, it could be a wise investment for those seeking to restore or repair their classic Oldsmobile F-85 Toronado.

For those looking for a high-quality, direct-fit replacement fuel pump for their Oldsmobile F-85 Toronado (1967-70), the 40523 AC Delco fuel pump is a solid choice. However, it's essential to consider the cost, availability, and potential shipping delays before making a purchase. If budget is a concern, it may be worth exploring aftermarket or used alternatives. Alternatively, those who want the peace of mind that comes with a reputable brand and warranty coverage may find the higher cost worth the investment.

Details:

Clean overall with scuffs and oxidation on lever; casting ports intact. Need something extra. AC Delco 40523 Fuel Pump Oldsmobile 400 425 455 1967-70 F-85 Toronado A/C OEM. Fitment per box label: Oldsmobile F-85 400 engines 1967 1968; Toronado 425 455 with A/C 1970.

Included: Fuel pump and gasket only; box label is shown for reference. Brand: AC Delco ; casting marked on the housing. Part number: 40523 mechanical fuel pump; includes the mounting gasket shown. Markings: AC logo cast into the side of pump body.

Ports: Multiple ports present, including hose barbs and a larger threaded fitting; one port is stamped IN. Gasket included; pump untested. Design: Mechanical diaphragm pump with long actuating arm and cast body gold-tone top. Notes: Verify part number and compatibility with your engine A/C configuration before purchase.

part #: 40523 prices

• $80.94-$191.06

specifications pumpunite:

• for models: 400, 425, 455, Toronado
• for makes: Oldsmobile
• for years: 1967-70
• type: Fuel Pump
• fuel type: Gasoline
• drive type: Mechanical
• manufacturer part number: 40523

seller pumpunite:

• # reviews: 3362
• rating: 100.0%
• city: Abbeville, South Carolina

payments pumpunite:

• credit card: Diners-club
• wallet: Paypal
• other

offer pumpunite:

• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: January 23, 2026
• best offers: True

general pumpunite:

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

returns pumpunite:

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

shipping pumpunite:

• cost: $9.99
• transit: 4-8 Days
• carrier: USPS
• service: USPS Ground Advantage, USPS Priority Mail
• class: Standard, Expedited
• type: Fixed

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