Carburetor Fuel Solenoid Autoparts Automatic Plunger Kit for Kohler

Description

Product Overview

The Autoparts carburetor fuel solenoid is engineered to provide precise fuel control for small engine equipment such as Kohler CV17-25 and CV620-740 models. Featuring an automatic, normally‑open design, the unit activates the fuel flow when the engine control signal is present, eliminating the need for manual intervention. The solenoid’s plunger mechanism is driven by a silver‑coated contact that offers excellent conductivity and resistance to corrosion, ensuring reliable operation over a wide temperature range.

The device incorporates a Molex connector with a through‑hole or screw terminal option, allowing installers to secure the wiring with confidence. The contact type is normally open, which means the circuit remains inactive until the solenoid is energized, reducing the risk of fuel leakage. With a compact package measuring 3.54 by 2.36 by 1.06 inches and a lightweight of just 2.47 ounces, the solenoid fits easily into tight engine bays without compromising clearance.

Built from high‑grade materials, the solenoid delivers a long service life even under continuous cycling conditions. The silver contact material provides low electrical resistance, which translates into efficient energy use and reduced heat generation. The actuator type is a plunger, offering a simple yet robust mechanical action that is less prone to wear compared with more complex valve designs. This reliability makes the part a preferred replacement for OEM numbers 2404120, 2475515, and related equivalents.

Installation is straightforward thanks to the screw‑type terminal that can be secured with a standard screwdriver, and the unit’s design aligns with the original mounting points of the OEM solenoid. Users should verify compatibility with their engine model before purchase; the part is intended for Kohler CV17-25 and CV620-740 carburetor systems, and it is not suitable for the 24-757-45S CV22 variant. The package includes one solenoid kit, ready for immediate replacement.

By delivering a consistent fuel pulse, the solenoid helps maintain optimal engine performance, improving throttle response and reducing emissions. Its automatic operation ensures that the fuel valve opens precisely when needed, preventing over‑fueling and the associated wear on engine components. The combination of a durable silver contact, a reliable Molex connector, and a compact form factor makes this solenoid an ideal upgrade for both repair shops and DIY enthusiasts seeking dependable results.

During development, the solenoid was subjected to thermal cycling tests ranging from -40°C to +85°C to verify its performance under extreme conditions. Engineers also performed vibration testing at frequencies up to 2000 Hz to simulate the harsh environment of portable equipment. These rigorous assessments confirmed that the internal components maintain their structural integrity and electrical characteristics, providing confidence that the solenoid will operate reliably in both indoor and outdoor settings.

The solenoid complies with industry standards for automotive components, and its materials are selected to minimize environmental impact. The silver plating process is performed in a closed system to reduce waste, and the polymer housing is free from halogenated flame retardants. Autoparts also ensures that the packaging is recyclable, using cardboard and minimal plastic wrap, aligning with sustainable practices that many customers value.

Usage

The solenoid is designed for use in a variety of small‑engine applications, including lawn mowers, portable generators, and pressure washers that rely on Kohler carburetor systems. In these machines, precise fuel delivery is critical for smooth start‑up, steady idle, and efficient power output. The automatic nature of the unit means it reacts instantly to the engine’s control signals, providing the right amount of fuel at the exact moment it is required.

To install the solenoid, first disconnect the battery and relieve any residual pressure in the fuel system. Remove the original valve, taking note of the wiring orientation. Attach the new Molex connector, ensuring the pins align correctly, then secure the terminal with the provided screw. Position the solenoid in the original mounting location, reconnect the fuel line, and re‑energize the battery. A brief test run will confirm proper operation.

Regular maintenance involves checking the connector for corrosion and confirming that the plunger moves freely without obstruction. If the engine exhibits hard starting or irregular idle, inspect the solenoid for signs of wear or electrical failure. Replacing a faulty unit with this Autoparts model restores the original fuel flow characteristics, reducing the likelihood of engine stalling and extending the overall lifespan of the equipment.

Professional repair technicians appreciate the solenoid’s quick swap capability, which minimizes downtime for customers and allows service bays to handle more jobs per day. Hobbyists and DIY owners also benefit from the clear labeling and straightforward wiring, making it an ideal choice for those who prefer to perform their own maintenance. Because the part meets or exceeds OEM specifications, it can be confidently used in both new builds and refurbishment projects.

Safety is a paramount concern when handling fuel‑related components. The solenoid’s sealed design prevents fuel leakage, and the IP00 rating indicates that the unit is intended for indoor use where exposure to water is minimal. Users should always follow the manufacturer’s guidelines for torque specifications when securing the terminal, as overtightening can damage the connector and compromise the electrical path. Proper installation ensures that the fuel system operates within its designed parameters, reducing the risk of fire or engine damage.

Why Choose Us

Autoparts has built a reputation for delivering components that meet rigorous automotive standards, and this carburetor fuel solenoid is no exception. Each unit undergoes a multi‑stage quality control process that includes dimensional inspection, electrical continuity testing, and functional verification under simulated operating conditions. This systematic approach guarantees that every solenoid leaving the factory performs to the same high level of reliability expected by mechanics and end‑users alike.

The solenoid’s core components are fabricated from high‑grade alloys that resist corrosion and maintain conductivity over prolonged service life. The silver contact surface is plated to a precise thickness, providing a low‑resistance path for the control current while also offering excellent wear resistance. The housing is molded from a durable polymer that can withstand the vibrations and temperature fluctuations typical of outdoor power equipment.

Customers who purchase this solenoid benefit from Autoparts’ dedicated technical support team, which is available to answer installation questions, troubleshoot performance issues, and provide guidance on part compatibility. The company offers a straightforward return policy and a warranty that covers manufacturing defects for a period of one year from the date of purchase. This commitment to service ensures that buyers receive not only a quality product but also peace of mind throughout the ownership cycle.

The design of the Autoparts solenoid mirrors the original OEM dimensions, ensuring a seamless fit into the existing mounting bracket without the need for modifications. The Molex connector aligns perfectly with the factory wiring harness, and the screw‑type terminal provides a secure mechanical lock that resists loosening due to engine vibration. This precise engineering eliminates the guesswork often associated with aftermarket replacements, delivering a plug‑and‑play experience for both professionals and hobbyists.

By combining durable materials, rigorous testing, and comprehensive support, this solenoid offers a cost‑effective alternative to OEM parts while maintaining comparable performance. Users can expect consistent fuel delivery, reduced engine wear, and improved overall efficiency, translating into lower operating costs over the lifespan of the equipment. Whether replacing a failed unit or upgrading an older system, the Autoparts carburetor fuel solenoid provides the reliability and peace of mind that discerning customers demand.

Autoparts continuously invests in research to improve the efficiency of its fuel control components. Future iterations of the solenoid will incorporate advanced sealing technologies that further reduce the risk of fuel vapor escape, supporting stricter emissions regulations. By choosing this current model, customers gain access to a product that not only meets today’s performance standards but also positions them to benefit from upcoming upgrades and compatibility enhancements.

Key Features

• High‑conductivity silver contact ensures low resistance and reliable fuel valve actuation.
• Durable Molex connector with screw‑type terminal provides secure, vibration‑resistant wiring.
• Compact 3.54 x 2.36 x 1.06 inch form factor fits tight engine bays without modification.
• Designed for Kohler CV17-25 and CV620-740 models, delivering precise automatic fuel control.
• Backed by Autoparts technical support and a one‑year warranty for peace of mind.

FAQ

How do I know if this solenoid is compatible with my engine?

Compatibility is determined by the engine model and the original part numbers. This solenoid is engineered to replace OEM numbers 2404120, 2404120‑S, 2475515, 2475722, and 2475722‑S, and it fits Kohler CV17‑25 and CV620‑740 carburetor systems. Before purchasing, compare the physical dimensions and connector type with your existing solenoid. If your engine uses a different part number, such as the 24‑757‑45S CV22, this unit is not suitable. Consulting the equipment’s service manual or contacting Autoparts support can provide additional confirmation.

What are the steps to replace the fuel solenoid?

Begin by disconnecting the battery and relieving any fuel pressure to avoid spills. Remove the old solenoid, noting the orientation of the wiring and the position of the mounting bracket. Attach the new Molex connector, ensuring each pin aligns correctly, then secure the terminal with the supplied screw. Place the solenoid back into the original mounting location, reconnect the fuel line, and re‑attach the battery. Start the engine and observe the fuel flow; a smooth idle indicates successful installation. If any leaks or irregular behavior occur, double‑check the connections and torque specifications.

Can I use this solenoid in applications other than Kohler engines?

The solenoid’s design focuses on the specifications of Kohler CV17‑25 and CV620‑740 models, but the core features—automatic operation, silver contact, and Molex connector—are common in many small‑engine fuel systems. If another engine uses a compatible connector type and has a similar voltage requirement, the solenoid may function correctly. However, variations in flow rate, pressure, or mounting geometry can affect performance. It is recommended to verify the exact requirements of the alternative equipment and, if possible, test the solenoid in a controlled environment before permanent installation.

What warranty coverage does Autoparts provide for this product?

Autoparts offers a one‑year limited warranty that covers any manufacturing defects arising from material or workmanship issues. The warranty does not apply to damage caused by improper installation, misuse, or modifications that deviate from the original design. If a defect is discovered within the warranty period, contact Autoparts customer service with the purchase receipt and a description of the problem. The company will arrange a replacement or repair, subject to the terms of the warranty, and will also provide technical assistance to help resolve any installation concerns.