Doc's Diesel Oil Filter for Chevrolet/GMC 6.6L Duramax 2500HD/3500HD 2001–2019 — 99% @25 Micron, OEM Fit

This oil filter is made to meet the demands of heavy-duty Duramax diesel engines. It matches common OEM cross-references and is third-party tested for particle removal, offering a balance of filtration performance and flow for routine service intervals. Use the fitment card on the product page to verify your truck's year and configuration before purchase.

How does this filter protect my Duramax during normal driving?

The Doc's Diesel element captures fine contaminants while maintaining required oil flow so engine components run with cleaner oil between services. Independent lab testing verifies efficiency at 25 microns, so you get measured filtration performance rather than unverified claims.

• 99% efficiency down to 25 microns in third-party testing
• Designed media to balance capture and flow for diesel lubrication systems
• Built to fit factory filter housings and service procedures

Will this filter fit my Chevrolet or GMC 6.6L Duramax truck?

This filter is manufactured specifically for Chevrolet and GMC 6.6L Duramax 2500HD and 3500HD trucks from model years 2001 through 2019. It cross-references common OEM part numbers, but you should confirm fitment with the provided compatibility tool before ordering.

• Compatible with 6.6L Duramax engines in 2001–2019 2500HD/3500HD models
• Interchangeable with GM 88917036, AC/Delco PF2232, Wix 57202
• Also cross-references Baldwin B1441, Premium Guard PG5399, Purolator L35399

What are the recommended service intervals and maintenance tips?

Follow your vehicle manufacturer’s schedule and warranty requirements for oil and filter changes. Typical guidance for heavy-duty diesel service is changing the filter with each oil change, often between 5,000–7,000 miles for severe duty or up to 10,000–15,000 miles in less demanding conditions.

• Change with every oil service for best protection
• Use manufacturer-recommended oil grade and monitor for contamination
• Inspect drain and housing seals when replacing the filter

How does Doc's Diesel compare to OEM or other aftermarket filters?

Doc's Diesel focuses on validated filtration efficiency rather than marketing claims, with independent testing to substantiate performance. The filter is designed to meet or closely match OEM fit and filtration characteristics, making it a cost-effective alternative for routine maintenance.

• Independent lab-rated efficiency, not just manufacturer claims
• Constructed to fit OEM housings and match service steps
• Offers equivalent cross-references to common OE and reputable aftermarket part numbers

Who is this for: This oil filter is intended for owners, fleet managers, and service technicians who maintain Chevrolet or GMC 6.6L Duramax 2500HD/3500HD trucks from 2001–2019 and want a tested, dependable replacement filter that aligns with OEM specifications. It’s suitable for everyday driving, towing, and light commercial use when used with recommended oils and service intervals.