HENKYO Accelerator Pump Jet Brass Direct Mount

Description

Product Overview

The HENKYO Accelerator Pump Discharge Jet is a high‑precision brass nozzle crafted for gasoline carburetors. Featuring a square bore flange and a direct‑mount configuration, it fits OEM part numbers Holley 121‑131, 121‑133, 121‑135, and 121‑137. Each jet is CNC‑lathed in Japan to exact tolerances, ensuring optimal fuel metering. The package includes a corrosion‑resistant copper gasket that forms a secure seal when compressed, extending service life.

Usage

Designed for classic and performance engines, this jet excels in street, track, and restoration applications. Install it inside the accelerator pump housing of 2300, 4150, 4160, or 4500 carburetors to improve throttle response and fuel atomization. Ideal for hobbyists, mechanics, and racers seeking reliable, plug‑and‑play upgrades.

Why Choose Us

HENKYO combines Japanese machining expertise with premium brass material, delivering a component that resists corrosion and wear. Our inclusion of a pre‑shaped copper gasket eliminates the need for additional parts, simplifying installation. Backed by a 4.7‑star rating from verified buyers, this jet offers proven performance and durability.

Key Features

• Precision CNC‑machined brass for exact fuel flow control
• Square bore flange ensures secure, leak‑free mounting
• Includes durable copper gasket that forms a tight seal
• Compatible with Holley part numbers 121‑131, 121‑133, 121‑135, 121‑137
• Designed for 0.020‑0.080 jet sizes, suitable for 2300‑4500 carburetors

FAQ

What carburetor models are compatible?

The jet fits 2300, 4150, 4160, and 4500 series carburetors that use Holley part numbers 121‑131, 121‑133, 121‑135, or 121‑137.

Do I need additional tools for installation?

Installation requires basic hand tools such as a screwdriver and a small wrench. The included copper gasket simplifies the process, eliminating the need for extra sealing components.

Is the brass material suitable for high‑temperature environments?

Yes, the brass is alloyed for heat resistance and corrosion protection, making it ideal for performance engines that operate under elevated temperatures.

Can I replace the jet without removing the entire carburetor?

Yes, the direct‑mount design allows the jet to be accessed and replaced from within the accelerator pump housing without disassembling the whole carburetor.

What is the warranty on this product?

HENKYO offers a one‑year limited warranty covering manufacturing defects, ensuring confidence in the product’s quality.