MAHLE Fuel Filter 21-23 GM 6.6L Duramax L5P
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
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- Ships from MAHLE
Is your 6.7L Cummins starting to lose efficiency, run rough, or just due for routine maintenance? This MAHLE Fuel Filter is one of those simple upgrades that plays a massive role in keeping your truck running the way it should. Designed as an OEM replacement, this filter protects your system by removing contaminants before they ever reach critical components, helping maintain consistent fuel delivery, smoother operation, and long-term reliability.
When it comes to diesel engines, clean fuel isn’t optional; it’s essential. Dirt, debris, and corrosion can quickly lead to injector wear, reduced performance, and costly repairs. This filter is built to keep your fuel system clean and your engine running strong, making it a must-have whether you’re staying on top of maintenance or bringing a neglected truck back to life.
Built by MAHLE, a trusted OEM supplier, the KX4911D features high-quality filter media that capture fine contaminants while maintaining proper fuel flow. This ensures your injection system gets clean, consistent fuel without restriction, even under load.
It’s a cartridge-style filter engineered to meet or exceed factory specifications, offering reliable sealing and proper fitment in the factory housing. Designed for durability and long service intervals, it helps protect against dirt particles and corrosion that can damage injectors and other sensitive fuel system components over time.
Is your 6.7L Cummins starting to lose efficiency, run rough, or just due for routine maintenance? This MAHLE Fuel Filter is one of those simple upgrades that plays a massive role in keeping your truck running the way it should. Designed as an OEM replacement, this filter protects your system by removing contaminants before they ever reach critical components, helping maintain consistent fuel delivery, smoother operation, and long-term reliability.
When it comes to diesel engines, clean fuel isn’t optional; it’s essential. Dirt, debris, and corrosion can quickly lead to injector wear, reduced performance, and costly repairs. This filter is built to keep your fuel system clean and your engine running strong, making it a must-have whether you’re staying on top of maintenance or bringing a neglected truck back to life.
Built by MAHLE, a trusted OEM supplier, the KX4911D features high-quality filter media that capture fine contaminants while maintaining proper fuel flow. This ensures your injection system gets clean, consistent fuel without restriction, even under load.
It’s a cartridge-style filter engineered to meet or exceed factory specifications, offering reliable sealing and proper fitment in the factory housing. Designed for durability and long service intervals, it helps protect against dirt particles and corrosion that can damage injectors and other sensitive fuel system components over time.
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.