Are there any important fitment notes for the DmaxStore Billet Filter Head Plunger Delete 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML?

Only recommended for trucks equipped with an aftermarket lift pump; once installed, you will no longer be able to manually prime the fuel system.

SKU #: DMAX-FHPD MPN #: DMAX-FHPD

DmaxStore Billet Filter Head Plunger Delete 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

Name: DmaxStore Billet Filter Head Plunger Delete 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML
Brand: DMAXStore
Price: 49.99 USD
Availability: InStock

$49.99

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DmaxStore Billet Filter Head Plunger Delete 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

Description Overview

Eliminate a common fuel-system leak point on your Duramax with the DmaxStore Billet Filter Head Plunger Delete. Designed specifically for LB7, LLY, LBZ, LMM, and LML applications running an aftermarket lift pump, this upgrade replaces the factory filter-head plunger system with a sealed billet cap. Higher fuel pressure from an aftermarket lift pump can cause the factory plunger seals to leak, potentially leading to fuel leaks under the hood and hard-start or no-start issues. By removing the stock plunger assembly, this delete eliminates that potential failure point and creates a more reliable fuel-filter head setup. Machined from 6061-T6 aluminum, the plunger delete is anodized black and laser-engraved for a durable finish and a clean appearance. The kit includes the billet filter head plunger delete, O-ring, and multipurpose synthetic grease, providing the components needed for installation. Keep in mind that once installed, you will no longer be able to manually prime the fuel system, so DmaxStore recommends this upgrade only for trucks equipped with an aftermarket lift pump.

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A billet aluminum delete that replaces the factory fuel-filter head plunger assembly with a sealed cap, eliminating a common lift-pump-induced fuel leak point.

Fits: 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML
Brand: DMAXStore
Best for: trucks running an aftermarket lift pump
Key features: Eliminates factory plunger seal leak point
Machined from 6061-T6 aluminum
Black anodized finish
Laser-engraved for clean appearance
Includes O-ring and multipurpose synthetic grease
Key specs: 6061-T6 aluminum
Important: Only recommended for trucks equipped with an aftermarket lift pump; once installed, you will no longer be able to manually prime the fuel system.

Summarized by AI from this product’s description and specs. Confirm fitment for your year, make and engine before ordering.

Eliminate a common fuel-system leak point on your Duramax with the DmaxStore Billet Filter Head Plunger Delete. Designed specifically for LB7, LLY, LBZ, LMM, and LML applications running an aftermarket lift pump, this upgrade replaces the factory filter-head plunger system with a sealed billet cap. Higher fuel pressure from an aftermarket lift pump can cause the factory plunger seals to leak, potentially leading to fuel leaks under the hood and hard-start or no-start issues. By removing the stock plunger assembly, this delete eliminates that potential failure point and creates a more reliable fuel-filter head setup.

Machined from 6061-T6 aluminum, the plunger delete is anodized black and laser-engraved for a durable finish and a clean appearance. The kit includes the billet filter head plunger delete, O-ring, and multipurpose synthetic grease, providing the components needed for installation. Keep in mind that once installed, you will no longer be able to manually prime the fuel system, so DmaxStore recommends this upgrade only for trucks equipped with an aftermarket lift pump.

Vehicle Fitment

2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

About DMAXStore

DmaxStore is dedicated to one thing: helping GMC and Chevy Duramax diesel owners get the most out of their trucks. Since 2007, DmaxStore has built its reputation around Duramax-specific parts, performance upgrades, replacement components, and technical knowledge for diesel truck enthusiasts.

Rather than trying to cover every make and model, DmaxStore focuses specifically on the Duramax platform. That specialization allows the company to carefully select products for their quality, performance, fitment, and value while providing customers with knowledgeable support when choosing parts for their trucks.

Duramax Parts From People Who Know Duramax Trucks

DmaxStore was founded after its owner spent seven years working for one of the largest GM dealers in the United States, where he earned the GM Mark of Excellence award. That experience helped establish the foundation for a business centered entirely around the GMC and Chevy Duramax diesel community.

Today, DmaxStore offers parts and upgrades covering a wide range of Duramax applications, from the original LB7 through the latest generations of the L5P, along with Duramax-powered Colorado and Canyon applications. Their product selection includes everything from maintenance and replacement parts to fuel-system upgrades, suspension components, drivetrain parts, steering upgrades, engine performance products, and more.

Performance, Replacement & Upgrade Parts

Whether you're maintaining a high-mileage Duramax, restoring an older Silverado or Sierra, or building a truck for increased performance, DmaxStore offers products designed around the needs of diesel truck owners.