Standard Ignition TCS412 Automatic Transmission Control Solenoid

Automatic Transmission Control Solenoid for Ford Super Duty

Standard Ignition TCS412 is an automatic transmission control solenoid built for direct mounting on the transfer case. It uses a rectangular female connector with Ford automotive-type terminals and a metal/plastic construction for service replacement on select Ford Super Duty applications.

Compatible with Ford F-250 Super Duty and Ford F-350 Super Duty applications that call for Solenoid No. 4, this transmission control solenoid is a direct-fit replacement for transfer case-mounted service needs. The TCS412 also includes O-rings for sealing at installation.

Key Features

• Direct attachment method for straightforward replacement
• Mounts on the transfer case
• Rectangular female connector with 2 terminals
• Ford automotive-type terminal design
• Metal and plastic construction
• Includes O-rings for sealing
• No wiring harness, gasket, or mounting hardware included

Detailed Description

Standard Ignition TCS412 is an automatic transmission control solenoid intended for transfer case-mounted service applications. It is built with a female connector, female terminals, and a direct attachment design to match the original service layout on supported Ford trucks. This part number is commonly searched as Standard Ignition TCS412 for Ford F-250 Super Duty and Ford F-350 Super Duty transmission control solenoid replacement needs.

This part cross-references BC3Z7G383U and TCS335 for the same application. Use TCS412 when replacing a transfer case-mounted solenoid on 2011-2023 Ford F-250 Super Duty and 2011-2020 Ford F-350 Super Duty vehicles, including 2022 Ford F-350 Super Duty Solenoid No. 4 applications.

What It Helps Fix

• Transmission control issues related to a failed transfer case solenoid
• Shift or engagement problems tied to Solenoid No. 4
• Electrical connection faults at the solenoid connector
• Sealing concerns at the transfer case interface
• Service replacement needs on Ford Super Duty driveline systems

Installation Notes and Tips

Verify the connector style, terminal type, and transfer case mounting location before installation. Inspect the sealing surfaces and replace worn O-rings as needed; this part includes O-rings and does not use a wiring harness, gasket, or mounting bracket. Confirm the vehicle application and Solenoid No. 4 callout for your Ford F-250 Super Duty or Ford F-350 Super Duty before service.

Quality Assurance

Standard Ignition replacement parts are built for service-fit accuracy and consistent electrical connection in automotive applications. Confirm part number TCS412 against the original component and vehicle service information before installation.