6.6L Duramax L5P Billet Fuel Filter Cap | 2017–2025 GMC/Chevrolet
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6.6L Duramax L5P Billet Fuel Filter Cap | 2017–2025 GMC/Chevrolet
6.6L Duramax L5P Billet Fuel Filter Cap | 2017–2025 GMC/Chevrolet
SKU: SKU:AC-FFC-GM-L5P-17
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Introduction
Upgrade the reliability of your GM Duramax 6.6L L5P with the Billet Fuel Filter Cap (2017–2025). The factory plastic cap is known to crack, round off and fail during routine fuel filter service. This billet aluminum replacement eliminates those weak points, offering better durability, easier servicing and a cleaner, more dependable fuel system for Sierra and Silverado HD trucks.
Features
- Replaces the factory plastic fuel filter cap that commonly cracks or rounds off
- Machined from billet aluminum for maximum strength and long-term reliability
- Integrated 36mm hex for simple, secure removal and installation
- Built-in billet aluminum drain valve for tool-free fuel draining
- 1/8 NPT port on the drain valve allows optional fittings or fuel accessories
- Fits both OEM plastic fuel filter housings and upgraded aftermarket housings
Benefits
- Prevents cracking, stripping, or seizing issues found in OEM plastic caps
- Enables clean, controlled draining without tools or spilled fuel
- Ideal upgrade for stock, towing, work and performance Duramax builds
- Corrosion-resistant billet construction increases long-term fuel system reliability
- Supports accessory connections with built-in 1/8 NPT port
Compatibility
- 2017–2025 Chevrolet Silverado 2500HD/3500HD (6.6L Duramax L5P)
- 2017–2025 GMC Sierra 2500HD/3500HD (6.6L Duramax L5P)
- Compatible with factory and most aftermarket fuel filter housings
Technical Specifications
| Specification | Detail |
|---|---|
| Material | CNC-machined billet aluminum |
| Hex Size | 36mm |
| Drain Valve | Integrated billet valve; tool-free operation |
| Port | 1/8 NPT threaded port for optional fittings or hoses |
Installation & Notes
- Direct bolt-on replacement for the OEM plastic filter cap
- Installs using a standard 36mm socket
- Drain valve allows clean, controlled draining before removing the filter
- No tuning or fuel system modifications required
Frequently Asked Questions (FAQ)
Why replace the OEM plastic Duramax L5P fuel filter cap?
The factory cap can crack or strip easily. A billet aluminum cap removes these failure points and lasts significantly longer.
Will this work with my stock Duramax L5P fuel filter housing?
Yes. It fits the OEM plastic housing and most aftermarket housings.
What tool do I need to remove it?
A standard 36mm socket fits the integrated hex.
What is the purpose of the 1/8 NPT port?
It allows installation of optional fittings, hoses or accessories if desired.
Does the billet fuel filter drain valve require tools?
No. The built-in drain valve is fully tool-free, making filter changes clean and easy.
Make: GMC, Chevrolet
Model: GMC Sierra 2500HD / 3500HD Chevy Silverado 2500HD / 3500HD
Engine: 6.6L Duramax V8 Turbo Diesel (L5P)
Shipping Policy at Tuner Depot
At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.
Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
- Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
- Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
- Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.
Warranty
Hardware components are covered by Tuner Depot's standard warranty. Tuning devices and software carry manufacturer warranty terms. Use of these products will void your vehicle's factory warranty. Please confirm with your manufacturer before installation.
Off-Road Use Only
These products are intended for off-road, race, and competition use only and may not be legal for use on public highways where emissions laws apply. Check your local and state regulations before purchase.
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