Product Description
FLEECE FPE-DMAX-OC-RED 2001-2016 DURAMAX OIL CAP RED
Dress up your Duramax engine bay and upgrade reliability with the FLEECE FPE-DMAX-OC-RED 2001-2016 DURAMAX OIL CAP RED. This precision-machined billet aluminum oil cap is designed specifically for 2001-2016 GM 6.6L Duramax trucks and features a bold red anodized finish that instantly modernizes the look of your engine compartment while delivering a secure, leak-resistant seal.
Built by Fleece Performance Engineering for real-world diesel use, this cap includes an integrated O-ring and cam-lock mechanism so it installs just like your OEM cap but seals better and looks significantly cleaner. Whether you’re daily driving, towing, or showing off your truck at events, this Duramax billet oil cap combines style, durability, and function in one simple upgrade.
- Direct replacement for the factory oil filler cap
- Machined from high-quality billet aluminum
- Red anodized finish for a high-contrast custom look
- Includes O-ring and cam-lock for a tight, leak-free seal
- Engineered specifically for 2001-2016 GM 6.6L Duramax engines
- Quick, tool-free installation using the factory-style cam-lock design
FITMENT
This Fleece red billet oil cap is designed to fit the following applications:
- 2001-2016 GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML)
- 2001-2016 Chevrolet Silverado 2500HD & 3500 / 3500HD 6.6L Duramax
- 2001-2016 GMC Sierra 2500HD & 3500 / 3500HD 6.6L Duramax
If your truck is equipped with a factory-style 6.6L Duramax oil filler cap and falls within the 2001-2016 model years, this billet cap is designed to be a direct, drop-in replacement.
CROSS-REFERENCE & RELATED FLEECE PRODUCTS
Complete your Duramax engine bay with these matching Fleece components available at CPP Diesel:
- FLEECE FPE-DMAX-OC-BLK 2001-2016 DURAMAX OIL CAP BLACK – black billet aluminum version for a stealth OEM-plus look.
- FLEECE FPE-DMAX-OC-BLU 2001-2016 DURAMAX OIL CAP BLUE – vibrant blue billet oil cap to match other blue-anodized accessories.
- FLEECE FPE-DMAX-OCADPT GM DURAMAX OIL COOLER ADAPTER KIT – upgraded oil cooler adapter to reduce leaks and improve sealing.
- FLEECE FPE-DMAX-OCADPT-ORING-KIT DURAMAX OIL COOLER ADAPTER O-RING KIT – replacement O-ring kit for Fleece Duramax oil cooler adapter.
WHY CHOOSE A FLEECE BILLET OIL CAP?
Stock plastic oil caps can fade, crack, or lose tension over time, increasing the chance of oil seepage around the filler neck. The FLEECE FPE-DMAX-OC-RED cap solves this with a rigid billet body, precise threads, and a fresh O-ring and cam-lock designed to maintain consistent clamping force and seal integrity in high-heat diesel environments.
Beyond durability, the red anodized finish is an easy way to tie together other under-hood upgrades like charge pipes, intake components, or dress-up hardware while still looking clean and professional.
SPECIFICATIONS
| Specifications for FLEECE FPE-DMAX-OC-RED | |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-DMAX-OC-RED |
| UPC | 670875716537 |
| GTIN | 670875716537 |
| Engine Platform | GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML) |
| Model Years | 2001-2016 |
| Material | Billet aluminum |
| Finish | Red anodized |
| Configuration | Oil filler cap with O-ring and cam-lock |
| Country of Origin | USA |
| Sold As | Each |
| Shipping Weight | Approx. 1.0 lb |
| Package Dimensions (L x W x H) | Approx. 3.0" x 3.0" x 2.0" |
| Cross Reference | FPE-DMAX-OC-BLK (black), FPE-DMAX-OC-BLU (blue); replaces OE Duramax oil filler cap |
| E-Codes | Not specified / not applicable |
| Prop 65 Warning | This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov . |
FAQ
Will this FPE-DMAX-OC-RED cap fit my 2001-2016 Duramax?
Yes. This billet cap is designed specifically for 2001-2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML) in Silverado and Sierra 2500HD/3500/3500HD applications that use the standard OEM-style oil filler cap.
Is this a direct replacement for the factory oil filler cap?
Absolutely. The FLEECE FPE-DMAX-OC-RED is a direct OEM replacement. It uses the same style cam-lock engagement and includes a new O-ring, so it installs in place of your factory plastic cap with no modifications required.
Does this cap include a new O-ring and sealing components?
Yes. The cap ships with an integrated O-ring and cam-lock assembly to provide a secure, leak-free seal. We recommend wiping the filler neck clean before installation for the best possible sealing surface.
Will the red anodized finish hold up to heat and engine bay conditions?
The cap is constructed from billet aluminum with a durable red anodized coating designed to resist heat, oil vapors, and normal under-hood conditions. Avoid harsh abrasives when cleaning to maintain its appearance.
Is this upgrade emissions legal and OK for daily-driven trucks?
Yes. This is a cosmetic and functional replacement for the factory oil cap and does not change emissions controls or tuning. It is suitable for daily-driven, towing, and performance applications where a factory-style oil cap is allowed.
