Mytee Products Windshield Wiper Control Valve with 1/8″ NPT Port – Fits PAI, OE Aftermarket, Navistar, 1653-421-C, IH-1653-421-C, IH1653421C

Description

Be safe while driving with clear visibility with this Windshield Wiper Control Valve with 1/8″ NPT Port – Fits PAI, OE Aftermarket, Navistar, 1653-421-C, IH-1653-421-C, IH1653421C. Thus, the wiper valve is a direct replacement for OEM part number 1653-421-C for a controlled windshield wiper system. Know more about this product below:

• Construction: This wiper valve is manufactured using steel material and has a metallic color. It is corrosion-proof and tolerant to wear.
• Application: This windshield wiper control valve regulates the flow of air or fluid in the wiper system. It acts as a control mechanism for the wider system and determines its speed or activation.

Compatibility: Check the complete compatibility list below:

• Fits Navistar: 1653-421-C
• Fits OE Aftermarket: GK-4
• Fits PAI: 4977

Installation Instructions

• Ensure the vehicle is turned off and the wiper system is deactivated.
• Locate the existing Windshield Wiper Control Valve and disconnect any air or fluid lines.
• Unscrew or unclip the old valve from its mounting position.
• Align the new Windshield Wiper Control Valve with the existing mounting points.
• Secure the valve in place and reconnect the air or fluid lines to the 1/8 NPT port.
• Test the wiper system to ensure smooth and responsive operation.

When to Replace Your Windshield Wiper Control Valve

• If the wipers fail to activate, operate erratically, or respond inconsistently.
• When there is noticeable air or fluid leakage from the valve.
• If the control knob is unresponsive or difficult to turn (if applicable).
• After prolonged exposure to corrosion, extreme temperatures, or wear.
• If the existing valve is overused and no longer functions efficiently.

Reasons to Choose Our Windshield Wiper Control Valve

• Direct replacement for part numbers 1653-421-C, IH1653421C.
• Heavy-duty steel construction for long-lasting durability.
• Corrosion-resistant metallic finish for extended lifespan.
• Precision-engineered for seamless integration into compatible wiper systems.
• Easy installation with a standard 1/8 NPT port.

Safety Considerations

• Disconnect the vehicle’s air or fluid supply before replacing the valve.
• Ensure all connections are secure to minimize leaks or malfunctions.
• Avoid overtightening fittings, which could damage the valve or port threads.
• Test the wiper system after installation to confirm proper functionality.
• Wear gloves to protect your hands from sharp edges or rough surfaces.

18-month Warranty: This product is covered for one year, 100,000 miles after the installation, or 18 months after the purchase, whichever comes first. The product’s warranty is only active when the parts have defective material or workmanship defaults. Inappropriate application will lead to the dismissal of the warranty. Additionally, the warranty doesn’t cover the parts that fail or get damaged due to misuse, misapplication, or accident. If the customer wishes to return/replace this product under warranty, reach out to us. The team will verify by doing a thorough inspection and if they find a defect that is covered in the above-mentioned warranty; the product will be replaced without any charge. We disclaim liability for labor or consequential damages of any nature. We request the customers to wait until the claim is resolved and settled from our end after the replacement is requested under warranty.