Dorman Fuel Primer Seal Kit for GMC & Chevrolet — 904-124HP Brass Bleeder Screw, 5 Gaskets, OE-Fix

This Dorman 904-124HP Fuel Primer Seal Kit replaces worn primer housing gaskets and swaps the fragile plastic bleeder screw for a durable brass screw to restore a secure, leak-free fuel filter primer assembly.

If the plastic bleeder screw or rubber seals on your GMC or Chevrolet fuel filter primer housing have stripped or started leaking, this OE FIX kit is a direct-repair solution designed to match the original fit while improving longevity. Dorman engineered this kit for owners and technicians who want to avoid a full housing replacement by refitting the original assembly with upgraded parts.

How will this seal kit fix common fuel primer housing problems?

The kit supplies replacement rubber gaskets and screws sized to match the original primer housing components, addressing leaks and loose fasteners. Replacing failed seals and the fragile plastic screw restores proper sealing and simplifies future maintenance.

• Includes five rubber gaskets that replace worn or cracked O-rings and seals.
• Comes with three replacement screws for securing the housing assembly.
• Replaces the original plastic bleeder with a brass bleeder screw for improved durability.

Will these parts fit my GMC or Chevrolet truck?

Dorman designed the 904-124HP kit as an OE FIX that matches the factory geometry used on select GM fuel primer housings, but fitment varies by year and trim. Use the vehicle look-up (entering make, model and trim) to confirm exact compatibility before ordering.

• Intended for specific GMC and Chevrolet models with compatible primer housings.
• Engineered to align with original mounting points and seal profiles.
• Always verify fitment using your vehicle details in the garage tool.

What advantages does the brass bleeder screw offer over the original plastic screw?

The brass bleeder screw resists stripping, corrosion and wear that commonly cause the plastic original to fail. Brass provides a firmer thread engagement and better longevity, reducing the risk of future leaks or stripped fastening points during bleed procedures.

• Stronger threads reduce stripping when tightening or loosening.
• More corrosion resistant than plastic in fuel-exposed environments.
• Simplifies bleed operations without risk of damaging the housing.

What comes in the kit and what should I expect during installation?

The kit ships with all the small parts needed to restore the primer housing seal and bleeding capability; installation requires basic hand tools and a clean workspace. Replacing the gaskets and swapping in the brass bleeder screw is a straightforward repair for a DIYer comfortable with light fuel-system work, or it can be completed quickly by a mechanic.

• Contents: five rubber gaskets, three screws, one brass bleeder screw.
• Tools: common hand tools and a torque/feel approach for final tightening.
• Tip: clean mating surfaces and inspect the primer housing for damage before reassembly.

Who is this for: technicians, fleet mechanics and owners of compatible GMC or Chevrolet trucks who prefer a targeted repair over full component replacement. If you’re dealing with a leaking primer housing, stripped plastic bleeder screw, or routine maintenance that requires reliable bleed hardware, this Dorman OE FIX kit offers an engineered, U.S.-designed solution to extend the life of the original primer assembly.