SeaEagles 30cc Accelerator Pump Diaphragm for Holley 4150/2300 – 135-10 Direct-Fit Replacement, Durable Rubber Kit

SeaEagles 135-10 30cc accelerator pump diaphragm is a direct-fit replacement kit that restores proper fuel squirt and throttle response on Holley 2300 and 4150 carburetors.

This replacement diaphragm kit supplies the parts needed to revive the accelerator pump function in Holley-style carburetors commonly found on classic cars, hot rods, and performance builds. The SeaEagles kit is made to match the Holley 135-10 dimensions and provides a robust rubber diaphragm and associated hardware designed for straightforward installation and long-term use. Before buying, verify the 30cc capacity and model fit for your Holley 2300 or 4150 carburetor to ensure compatibility.

How does the SeaEagles diaphragm affect throttle response?

A healthy accelerator pump diaphragm delivers a precise, short burst of fuel when you open the throttle, preventing hesitation or stumble. Replacing a worn or cracked diaphragm with this SeaEagles 30cc unit helps restore consistent fuel delivery under rapid throttle changes.

• Reinstates a clean fuel squirt during throttle tip-in
• Reduces lean hesitation and stumble on acceleration
• Maintains correct 30cc pump volume for intended jetting

Will this fit my Holley 4150 or 2300 carburetor?

This kit is designed as a direct replacement for Holley 135-10 style accelerator pump diaphragms used on many 2300 and 4150 carburetor assemblies. Confirm your carburetor uses the 135-10/135-5/135-12 style diaphragm and the 30cc pump capacity before ordering to guarantee a proper match.

• Compatible with Holley 2300 and 4150 models that use 135-10 style parts
• Fits standard 30cc accelerator pump housings
• Check original part number or measure pump volume if unsure

How difficult is installation and what tools are needed?

Replacing the diaphragm is a modestly simple task for anyone comfortable working with carburetors. Typically the process requires removing the pump cover, swapping the old diaphragm for the new one, and reassembling with supplied or existing hardware. Always work on a clean bench and keep small parts organized.

• Basic hand tools: screwdrivers, small wrenches, clean rags
• No special machining or carburetor body modification required
• Allow time to verify pump travel and seating after installation

What should I expect in terms of durability and maintenance?

The SeaEagles diaphragm is manufactured from durable rubber materials intended to resist typical heat and fuel exposure found in automotive use. Like all rubber parts, it will eventually age; periodically inspect for cracks, hardening, or leaks and replace as needed to maintain best performance.

• High-quality rubber resists fuel swelling and heat degradation
• Inspect diaphragms during routine carburetor service intervals
• Replace at signs of wear to avoid drivability issues

Who this is for: This SeaEagles 135-10 30cc accelerator pump diaphragm kit is aimed at classic car owners, hot rod builders, and mechanics who need a reliable, direct-fit replacement for Holley 2300 and 4150 carburetors. It’s also useful as a maintenance spare for shops that service vintage and performance carbureted engines. If you want to restore crisp throttle response and maintain correct pump volume without modifying your carburetor, this kit provides an affordable, quality option—just confirm model and volume compatibility before purchase.