If you're driving a Dodge, Ram, Chrysler, or Jeep in the U.S., you’ve likely relied on Mopar oil filters to keep your engine clean and protected. Mopar, the OEM parts division of Stellantis, sells filters that many believe it manufactures. But the real story? Mopar doesn't build them in-house—instead, it partners with trusted filter-makers. Let’s unravel the mystery and dive into why Purolator, Wix, Champion, Magneti Marelli, and Fleetguard are the real names behind your engine’s safety. Ready to discover who really crafts your Mopar filter?
1. Mopar: Not a Manufacturer, but a Brand Standard-Setter
Mopar—short for Motor Parts—represents Stellantis’s North American OEM parts, serving iconic brands like Chrysler, Dodge, Jeep, and Ram. Rather than manufacturing fuel filters themselves, Mopar sets the exacting OEM specifications—material, flow rates, sealing standards—then contracts seasoned filtration firms to produce the parts accordingly.

2. The Actual Makers Behind Mopar Oil Filters
Your Mopar filter likely comes from one of these well-known filtration specialists:
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Purolator – An American filtration legend founded in the 1920s, now part of German-based Mann+Hummel. Known for reliable OEM-quality media.
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Wix Filters – Frequently reported as the source for Mopar filters distributed in the U.S. and Canada.
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Champion Laboratories – Often produces white-filter variants for Mopar.
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Magneti Marelli – A Stellantis-owned enterprise delivering high-performance filters for newer Jeep and Ram models.
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Fleetguard (Cummins Filtration) – Commonly the maker behind heavy-duty filters used in Cummins-powered Ram 2500/3500 trucks.
Each supplier brings their own filtration technology and manufacturing capabilities—while Mopar ensures consistent quality across the board.
3. Where Are They Made? Mostly USA, Sometimes Abroad
Most Mopar oil filters are manufactured in the USA, offering reassurance on quality control and performance. However, certain recent batches were found labeled “Made in China.” Despite the shift, these filters still abide by Mopar’s strict OEM standards.
4. Why Knowing Matters (Engine Performance & Confidence)
Grasping who manufactures your filter goes beyond just trivia—it builds trust, ensures engine protection, and maintains warranty integrity. Whether you're tackling towing with a diesel Ram or cruising in your Jeep at scale, knowing a reputable firm like Purolator or Fleetguard stands behind the filter offers peace of mind far beyond a cheap aftermarket alternative.
5. What Real Owners Say
Community forums confirm this:
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“They are made by Mann+Hummell. Same as Wix.”
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“The OEM and Fleetguard filters are pretty much all that is recommended.”
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“Many of Mopar oil filters … generally made by Purolator to Chrysler specifications.”
These perspectives reinforce that Mopar’s chosen suppliers reliably uphold OEM quality expectations.
6. Summary Without the Table
Mopar oil filters are not manufactured under the Mopar name—they’re produced by OEM-grade specialists:
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Purolator (Mann+Hummel) – widely used, top-tier filtration quality
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Wix – especially present in Canadian distribution
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Champion – known for select white variants
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Magneti Marelli – delivers high-performance parts for new Stellantis models
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Fleetguard – trusted choice for Cummins diesel engines in heavy-duty Rams
Whether you're maintaining your Ram 2500/3500, Jeep Wrangler, Dodge Charger, or Chrysler Pacifica, these suppliers ensure Mopar-branded filters meet or exceed Mopar’s demands for engine protection and durability.
Final Verdict
Choosing the right oil filter can be the difference between an engine that lasts 300,000 miles and one that wears out too soon. Mopar oil filters, made by trusted manufacturers like Purolator and Fleetguard, give you OEM-grade protection at an affordable price.
Looking for genuine Mopar oil filters in the USA?
Check out our Mopar OEM Filter Collection — economy prices, fast shipping, and the best fit for your Dodge Ram or Jeep. Drive with confidence knowing your engine is protected by the same quality trusted by Mopar itself.
FAQs
1. Are Mopar oil filters truly OEM-quality?
Yes—Mopar oil filters are engineered to OEM-grade standards and produced by established manufacturers like Purolator, Magneti Marelli, and Fleetguard to meet strict performance benchmarks.
2. Who makes Mopar filters for Cummins diesel engines?
Heavy-duty Ram trucks with Cummins engines typically use Fleetguard filters, designed for maximum filtration and longevity.
3. Are Mopar oil filters made in the USA?
Most are manufactured in the U.S., although some recent versions bear labels indicating production overseas—yet still match OEM specifications.
4. How can I tell if my Mopar filter is a counterfeit?
Counterfeit filters often have incorrect seals, plastic wrapping, or labeling differences. Genuine filters lack an internal O-ring and feature a precise Mopar emblem. Be cautious when shopping online.
5. Why not just buy a cheaper aftermarket filter?
Aftermarket options may save money upfront but often compromise on fit, filtration efficiency, and warranty coverage. Mopar filters from trusted suppliers preserve engine health and OEM standards.