1667320C1 | Genuine OEM International/Navistar Neutral Safety Switch

The 1667320C1 Automatic Transmission Neutral Safety Switch is a Genuine OEM International/Navistar component designed for compatible automatic transmission applications. It is part of the transmission starting safety system and helps ensure the engine can start only when the transmission selector is in the appropriate position.

PRODUCT INFORMATION

• Part Number: 1667320C1
• Brand: International/Navistar
• Condition: New
• Component: Automatic Transmission Neutral Safety Switch
• Fuel Type: Diesel
• Transmission: Automatic transmission
• System: Transmission / Starting Safety System
• Application: Heavy-duty commercial trucks

APPLICATIONS

Designed for selected International/Navistar vehicles equipped with compatible automatic transmissions. Exact fitment varies depending on the vehicle model, transmission model, year, and configuration.

FUNCTION

The Neutral Safety Switch monitors the transmission selector position and supports the starting safety circuit. It helps prevent engine starting when the transmission is not in the required neutral or start position.

A worn, damaged, or failing NEUTRAL SAFETY SWITCH may cause symptoms such as:

• Engine will not start
• Intermittent starting problems
• Engine starts only in certain selector positions
• Neutral start circuit faults
• Transmission electrical faults
• Inconsistent switch operation

WHY REPLACE A NEUTRAL SAFETY SWITCH?

A faulty neutral safety switch can interfere with the transmission starting circuit and cause intermittent or complete starting problems. Replacing the switch with a Genuine OEM International/Navistar component helps restore proper starting safety system operation.

FITMENT INFORMATION

Please verify the part number, VIN, vehicle model, transmission model, and original switch specifications before ordering. Exact fitment varies by vehicle and transmission configuration.

If you are unsure whether this part is correct for your vehicle, please contact us with your VIN and original part number. We are happy to help verify compatibility before purchase.

GENUINE INTERNATIONAL/NAVISTAR PART

Part Number: 1667320C1