Product Description
Dress up your Duramax engine bay and ditch the boring plastic factory cap with the FLEECE FPE-DMAX-OC-BLK 2001-2016 DURAMAX OIL CAP BLACK. This black anodized billet aluminum oil cap is CNC-machined for a precise OEM-style fit and features the Fleece Performance logo for a clean, custom look that matches serious performance builds.
Engineered as a direct replacement for the stock oil cap, the FPE-DMAX-OC-BLK includes an integrated O-ring and cam-lock design to provide a secure, leak-free seal under harsh under-hood conditions. Whether you’re daily driving, towing heavy, or showing off at the track, this billet cap delivers long-term durability and a premium finish that won’t fade like cheap plastic dress-up parts.
Pair this stylish black cap with matching Fleece Duramax upgrades from CPP Diesel to create a cohesive, high-end engine bay that looks as serious as it performs.
Fitment
- Engine: 6.6L Duramax (LB7, LLY, LBZ, LMM, LML)
- Years: 2001–2016
- Vehicles: Chevrolet Silverado 2500HD/3500HD, GMC Sierra 2500HD/3500HD, 6.6L Duramax-equipped models
- Location: Engine oil filler cap (valve cover)
- Direct OEM replacement – no modifications required
Features & Benefits
- Black anodized billet aluminum construction for strength and corrosion resistance
- Precision CNC-machined for an OEM-style twist-in fit
- Includes O-ring and cam-lock for a secure, leak-resistant seal
- Laser-etched Fleece Performance logo for a premium, custom appearance
- Direct replacement for the stock plastic oil cap – simple, tool-free installation
- Designed specifically for 2001–2016 GM 6.6L Duramax applications
Cross-Reference & Related Fleece Products (CPP Diesel)
Build a matching engine bay with these Fleece Duramax components available at CPP Diesel:
- Black oil cap variant (this item): FLEECE FPE-DMAX-OC-BLK 2001-2016 DURAMAX OIL CAP BLACK
- Red billet oil cap: FLEECE FPE-DMAX-OC-RED 2001-2016 DURAMAX OIL CAP RED
- Blue billet oil cap: FLEECE FPE-DMAX-OC-BLU 2001-2016 DURAMAX OIL CAP BLUE
- Fleece Duramax oil cooler adapter kit: FLEECE FPE-DMAX-OCADPT GM DURAMAX OIL COOLER ADAPTER KIT
- Fleece Duramax oil cooler adapter O-ring kit: FLEECE FPE-DMAX-OCADPT-ORING-KIT DURAMAX OIL COOLER ADAPTER O-RING KIT
- Fleece LB7 intake horn: FLEECE FPE-INTAKEHORN MODIFIED LB7 INTAKE HORN
- Fleece LML resonator delete plate: FLEECE FPE-LML-RES RESONATOR DELETE PLATE DURAMAX LML 6061 ALUMINUM
Specifications for FLEECE FPE-DMAX-OC-BLK
| Parameter | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-DMAX-OC-BLK |
| UPC | 670875716483 |
| GTIN | 00670875716483 |
| Engine Compatibility | 2001–2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML |
| Vehicle Compatibility | 2001–2016 Chevrolet Silverado 2500HD/3500HD, GMC Sierra 2500HD/3500HD, 6.6L Duramax |
| Configuration | Engine oil filler cap, twist-in, cam-lock with O-ring |
| Material | Billet aluminum |
| Finish | Black anodized with Fleece logo |
| Country of Origin | USA (manufacturer-stated) |
| Cross Reference | FPE-DMAX-OC-RED, FPE-DMAX-OC-BLU, FPE-DMAX-OCADPT, FPE-DMAX-OCADPT-ORING-KIT |
| E-Codes / Emissions | Not emissions-related (engine dress-up component) |
| Shipping Weight | Approx. 1.0 lb |
| Package Dimensions | Approx. 3.00" L x 3.00" W x 2.00" H |
| Shipping Method | Standard ground/parcel (via CPP Diesel) |
| Prop 65 Warning | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Frequently Asked Questions
Will this FLEECE FPE-DMAX-OC-BLK oil cap fit all 2001-2016 Duramax engines?Yes. This billet oil cap is designed specifically for 2001–2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML) and installs in place of the factory oil filler cap with no modifications required.
Does the cap include the O-ring and cam-lock mechanism?
Absolutely. The FPE-DMAX-OC-BLK comes complete with an integrated O-ring and cam-lock design to ensure a secure, leak-free seal that matches or exceeds the performance of the OEM cap.
Is this just for looks, or does it offer a performance benefit?
This cap is primarily an appearance and durability upgrade. The billet aluminum construction resists cracking, warping, and discoloration better than the factory plastic cap, and the precision-machined seal helps maintain proper crankcase sealing under demanding conditions.
Can I match this black cap with other Fleece parts from CPP Diesel?
Yes. CPP Diesel stocks a full line of Fleece Duramax components, including oil cooler adapters, O-ring kits, intake horns, and resonator delete plates that pair perfectly with this black billet oil cap. See the Cross-Reference & Related section above for direct links.
Is the FPE-DMAX-OC-BLK cap emissions legal in all 50 states?
The oil cap is a non-emissions, dress-up and service component and does not alter any emissions control systems. It is generally acceptable for use in all 50 states; however, always refer to local regulations if you have specific compliance questions.
