There isn’t a single oil filter number for all 2018 Acadia models. The correct AC Delco oil filter depends on the engine installed in your vehicle, so you’ll need to verify the specific part for your configuration.
Engine options in the 2018 Acadia
In 2018, the Acadia offered multiple engine choices which determine the appropriate oil filter. The most common configurations are the 2.5L four-cylinder and the 3.6L V6, with differences in filter design across engines.
- 2.5L inline-4 (2.5L I4) engine
- 3.6L V6 engine
Knowing your engine helps you narrow down the correct AC Delco oil filter part.
How to determine the exact AC Delco oil filter number
Use these steps to identify and verify the correct filter for your 2018 Acadia.
- Locate the current oil filter on the engine and read the part number printed on its side.
- Identify your engine type by checking the badge under the hood or using the VIN (Vehicle Identification Number) to pull the exact engine specification.
- Visit the AC Delco or GM Parts Catalog and enter your year, make, model, and engine to retrieve the precise filter number.
- Compare the specifications (thread size, gasket type, and overall diameter) with the current filter to ensure a match.
If you’re unsure, bring the old filter or your VIN to a GM dealer or reputable auto parts retailer to confirm the correct AC Delco filter for your engine.
Where to buy or verify the part
Official sources and reputable retailers offer lookup tools by VIN, year, and engine, helping you confirm the exact filter number. Common places to verify include:
- ACDelco official parts finder
- GM Global Parts Catalog
- Auto parts retailers (e.g., AutoZone, Advance Auto Parts, O'Reilly)
Always ensure you order from a trusted source and double-check the part number against your vehicle’s configuration.
Summary
The 2018 GMC Acadia uses more than one AC Delco oil filter number, depending on the engine. By identifying your engine and using official parts catalogs or the current filter label, you can confirm the exact part number and avoid incorrect replacements.