Not one filter fits every 2018 Grand Cherokee. The correct oil filter depends on the engine installed in your SUV.
Details: The 2018 Grand Cherokee offered several powertrain options, including the 3.6L Pentastar V6, the 5.7L Hemi V8, and the 3.0L EcoDiesel V6, with some trims also offering a high-performance variant. Each engine uses its own filter design or cartridge configuration, so you’ll need to identify your exact engine to select the right part number. This article explains how to determine the correct filter and what to consider when shopping for replacements.
Engine options and their filter types
Before listing the engines, note that filter design can vary by engine family. The following overview covers the most common configurations you’ll find in 2018 Grand Cherokees and the general filter type used by each.
- 3.6L Pentastar V6 — typically uses a conventional spin-on oil filter that screws into the engine block.
- 5.7L Hemi V8 — typically uses a conventional spin-on oil filter as well.
- 3.0L EcoDiesel V6 — uses a cartridge-style oil filter housed in a canister; you replace the filter element inside the housing rather than a full canister.
- 6.4L Hemi (SRT) variants — filter setup can vary by model year and trim; check the official parts catalog for your exact vehicle configuration.
Concluding note: Because filter design changes with engine type, always verify the exact engine in your vehicle before purchasing a replacement. If you’re unsure, you can confirm via the VIN, the owner's manual, or by asking a dealer or parts retailer.
How to verify the exact oil filter part number
To ensure you buy the correct filter, follow these verification steps before purchase.
- Identify your engine type and model year from the VIN or under-hood label.
- Consult the owner's manual maintenance section for the recommended filter specification.
- Use the VIN on a Mopar Parts catalog or trusted aftermarket retailer to pull the exact part number compatible with your vehicle.
- If shopping in person, bring the existing filter or the canister’s cap to confirm fitment with the clerk.
Concluding note: With the exact engine information, you’ll be able to locate the correct filter quickly, whether you choose an OEM Mopar part or a cross-reference from brands like Wix, Bosch, Fram, or Mann.
Summary
In short, the 2018 Grand Cherokee does not have a single oil filter. The right filter depends on the engine—3.6L, 5.7L, 3.0L EcoDiesel, and potentially other variants—so identify your engine first, then select either the standard spin-on or cartridge-style filter that matches that engine. For the most reliable result, use your VIN to look up the exact Mopar part number or a trusted cross-reference from an aftermarket supplier.