Description
Product Overview
The SeaEagles Holley 4150 Carburetor Rebuild Kit (model QZ‑37‑485) is engineered to revitalize the iconic double‑pumper carburetor found in many high‑performance engines. Constructed from durable, heat‑resistant materials, each component—gaskets, O‑rings, pump diaphragm, needle, seat, and 125‑65 6‑5’Hg power valve—matches original equipment specifications for a perfect fit. The kit is painted to resist corrosion and comes in a compact 8.94 x 7.48 x 1.26‑inch package weighing just 8.8 oz, making storage and handling effortless.
Usage
Designed for automotive enthusiasts, racers, and DIY mechanics, this rebuild kit restores optimal fuel metering in street‑legal cars, off‑road trucks, and competition vehicles. Install the components during routine maintenance or after a performance upgrade to ensure consistent throttle response and prevent lean or rich conditions. The kit is compatible with all Holley 4150/4150C models, including 650, 750, and 850M variants, making it a versatile solution for a wide range of applications.

Why Choose Us
SeaEagles combines decades of carburetor expertise with rigorous quality control. Each part undergoes precision machining and dimensional testing to meet OEM tolerances, guaranteeing leak‑free operation and extended service life. Our customer support team provides rapid assistance and can supply detailed installation instructions upon request, ensuring confidence throughout the rebuild process. With a 3.9‑star rating from over 120 verified buyers, the kit has proven reliability in real‑world conditions.
Key Features
- Complete set includes all gaskets, O‑rings, pump diaphragm(s), needle, seat, and power valve for a full rebuild.
- High‑temperature resistant materials prevent deformation under extreme engine conditions.
- Exact OEM dimensions ensure a seamless fit without the need for modifications.
- Compatible with Holley 4150, 4150C, 650, 750, and 850M double‑pumper carburetors.
- Painted exterior adds corrosion resistance and easy visual identification of parts.
FAQ
What engines are compatible with this rebuild kit?
The kit fits all Holley double‑pumper 4150 series carburetors, including 4150, 4150C, and the 650, 750, and 850M models commonly used in V8 and V6 performance engines.
Do I need additional tools to install the kit?
Standard carburetor service tools such as a screwdriver set, torque wrench, and a small pry bar are sufficient. No specialized equipment is required.
Can I purchase installation instructions separately?
Yes. If the printed manual is not included, contact the seller and we will provide a detailed PDF guide to walk you through each step.
How does the pump diaphragm improve performance?
The pump diaphragm restores proper fuel pump action, ensuring consistent fuel flow and preventing pressure drops that can cause hesitation or loss of power.
Is this kit covered by a warranty?
All SeaEagles rebuild kits come with a one‑year limited warranty against manufacturing defects. Register your purchase on our website for full coverage.




GM Black Plastic Master Cylinder Cap
Reviews
There are no reviews yet.