Product description

This 4-Way 3-Position Directional Control Valve is a sophisticated pneumatic component engineered for Snap-On and John Bean tire service machines, particularly those utilizing the 1-28781A valve assembly. Its 4-way, 3-position design provides complex control over pneumatic cylinders, allowing for forward, reverse, and neutral (center-closed) operation. This is essential for the precise positioning of tire changer components like the bead breaker arm or the tabletop clamping mechanism. Constructed with a precision-machined valve body and high-performance seals, this valve is designed to provide smooth, leak-free operation over thousands of cycles. Its internal configuration ensures that air pressure is distributed accurately to both sides of the actuator, providing balanced force and predictable machine response. This direct-replacement valve restores full functionality to the machine's pneumatic control circuit, ensuring that technicians can perform tire services with the accuracy and safety required in professional automotive environments.

Product highlights

• Genuine Snap-On replacement part specifically engineered for Valve 4Way 3Pos(1-28781A) Snap-On applications.
• Constructed from high-durability materials to withstand the rigorous demands of professional automotive service environments.
• Precision-engineered design ensures a direct-fit for seamless integration into existing Snap-On and John Bean equipment.
• Essential for maintaining peak pneumatic or hydraulic system performance and precise machine control.
• Built to resist wear, vibration, and chemical exposure commonly found in high-volume tire service bays.

Specs

• Manufacturer: Snap-On
• Manufacturer Part Number: ST0022490

Direct replacement models

1-28781A

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.