ACDelco oil filters are General Motors' original equipment manufacturer filters, designed to fit GM vehicles and sold through dealerships, auto parts retailers, and online

ACDelco filters come in two main lines: Genuine ACDelco (OEM filters that match what came on your vehicle from the factory) and ACDelco Professional (aftermarket filters that meet GM specifications but are not factory original). Both are made by ACDelco, which is owned by General Motors. The difference matters if you're trying to maintain your vehicle's warranty or if you want the exact filter your manufacturer designed for your engine.

ACDelco filters work the same way as any oil filter — they trap dirt, metal particles, and sludge as oil circulates through your engine. What sets them apart is that Genuine ACDelco filters are engineered specifically for your vehicle's engine size, oil flow rate, and cooling system. If you drive a Chevrolet, GMC, Cadillac, Buick, or older Pontiac or Saturn, an ACDelco filter is likely what your owner's manual recommends.

Key Takeaways

  • Genuine ACDelco filters are original equipment parts made for GM vehicles, while ACDelco Professional filters are aftermarket alternatives that meet GM standards.
  • ACDelco filters are available at GM dealerships, national auto parts chains like AutoZone and O'Reilly, Walmart, and online retailers including Amazon.
  • The part number on your filter tells you which engine it fits; checking your owner's manual or using the retailer's vehicle selector tool prevents buying the wrong size.
  • ACDelco filters typically cost between $8 and $18 depending on the model and where you buy, with Genuine versions usually higher than Professional.
  • Using an ACDelco filter does not void your warranty, but using a non-approved filter could affect warranty coverage for engine damage in some cases.

Where to buy ACDelco filters and what to expect to pay

GM dealerships stock both Genuine and Professional ACDelco filters, usually in stock for same-day pickup. Dealerships typically charge more than independent retailers — expect to pay $12 to $18 for a Genuine filter depending on your vehicle. The advantage is that the parts department can confirm the exact filter your vehicle needs and often install it if you ask.

National auto parts chains like AutoZone, O'Reilly Auto, NAPA, and Advance Auto Parts carry ACDelco Professional filters in most locations and stock Genuine filters for popular GM models. Prices at these retailers run $8 to $15 for Professional and $10 to $16 for Genuine. Walmart and Costco carry a limited selection of ACDelco filters, usually Professional grade, at competitive prices. Online options include Amazon, RockAuto, and the retailers listed above; shipping times vary from next-day to one week depending on the seller.

How to find the right ACDelco filter for your vehicle

The safest method is to check your owner's manual, which lists the correct filter part number in the maintenance section. Write down that part number before you shop — it looks like "PF63" or "PF63E" and is specific to your engine size and model year.

If you do not have your manual, use the vehicle selector tool on the retailer's website. Enter your vehicle's year, make, model, and engine size (you can find engine size on your registration or by looking under the hood at the engine cover). The tool will return the correct part number and show you both Genuine and Professional options. Do not guess at the filter size — using the wrong filter can restrict oil flow or cause leaks.

You can also call a GM dealership parts department with your vehicle identification number (VIN), which is printed on your registration and visible on the dashboard. They will tell you the exact filter and price in under five minutes.

Genuine ACDelco versus ACDelco Professional filters

Genuine ACDelco filters are the original equipment parts — they are what came on your vehicle when it left the factory. These filters are engineered to exact GM specifications for your specific engine. They carry the full ACDelco warranty and are the choice if you want to maintain your vehicle exactly as designed.

ACDelco Professional filters meet GM performance standards but are not factory original. They perform the same filtration job and are warrantied by ACDelco, but they may have different internal materials or bypass valve settings. Professional filters cost $2 to $5 less than Genuine versions. Many owners use Professional filters for routine maintenance and see no difference in engine performance or longevity.

From a warranty standpoint, using either Genuine or Professional ACDelco filters will not void your manufacturer's warranty. However, if engine damage occurs and you cannot show that you used an approved filter, the manufacturer could deny a warranty claim. Keeping your receipts and using ACDelco filters protects you in this scenario.

What to check before you install an ACDelco filter

Before opening the box, verify the part number on the filter matches the part number you looked up. The part number is printed on the filter's label and should match exactly. If it does not, return it — installing the wrong filter is not worth the risk of engine damage.

Check the filter's threading and size by comparing it to your old filter if you have one. ACDelco filters come in different diameters and thread sizes; the most common are 3/4-inch and 13/16-inch threads. The filter should screw on smoothly without forcing. If it does not fit, stop and verify the part number again.

Look at the filter's bypass valve rating, which is printed on the label. This tells you at what oil pressure the valve opens if the filter becomes clogged. ACDelco filters are calibrated for your engine's oil system, so this should match your vehicle's specifications.

How often to replace an ACDelco filter

Your owner's manual specifies the oil change interval for your vehicle — typically every 3,000 to 10,000 miles depending on your engine type and whether you use synthetic oil. Replace the ACDelco filter every time you change the oil. Do not reuse a filter or skip a filter change to save money; a clogged filter restricts oil flow and can damage your engine.

If you drive in severe conditions — towing, frequent short trips, dusty environments, or extreme temperatures — your manual may recommend shorter intervals. Follow those recommendations. Some owners who drive conservatively and use synthetic oil go 8,000 to 10,000 miles between changes; others who drive aggressively or in dusty areas may need to change every 3,000 to 5,000 miles.

Common questions about ACDelco filter compatibility

ACDelco filters are designed for GM vehicles. If you own a Chevrolet, GMC, Cadillac, Buick, Pontiac, Saturn, or Hummer, an ACDelco filter is the right choice. If you own a non-GM vehicle, you need a filter designed for that manufacturer — using an ACDelco filter on a Ford, Toyota, or Honda will not fit and could damage your engine.

Some older GM vehicles and some specialty models may use filters from other manufacturers. Always verify the part number in your owner's manual rather than assuming all GM vehicles use ACDelco filters.

Frequently Asked Questions

Can I use an ACDelco Professional filter instead of Genuine?

Yes. Both are made by ACDelco and meet GM standards. Professional filters cost less and perform the same filtration job. The choice comes down to whether you prefer factory-original parts or are comfortable with an aftermarket alternative that meets the same specifications.

What if I install the wrong size ACDelco filter?

Stop and remove it when ready. An incorrectly sized filter can leak, restrict oil flow, or not seal properly. This can damage your engine. Always verify the part number matches your vehicle before installation.

Do I need to buy ACDelco filters at a dealership?

No. Auto parts retailers, Walmart, Costco, and online sellers carry ACDelco filters at competitive prices. Dealerships are convenient if you want installation help, but you can buy and install elsewhere and maintain your warranty as long as you use an approved ACDelco filter.

Will using an ACDelco filter void my GM warranty?

No. Using a Genuine or Professional ACDelco filter will not void your warranty. However, if engine damage occurs and you cannot prove you used an approved filter, GM could deny a warranty claim. Keep your receipt as proof.

How long does an ACDelco filter last?

An ACDelco filter lasts for one oil change cycle — typically 3,000 to 10,000 miles depending on your vehicle and driving conditions. Replace it every time you change your oil. Do not attempt to clean or reuse a filter.