Standard Ignition TCS121 Automatic Transmission Control Solenoid

Automatic Transmission Control Solenoid for Honda and Acura

Standard Ignition TCS121 is an automatic transmission control solenoid built for direct-fit service on select Honda and Acura applications. It uses a female connector, male blade terminals, and a push-on attachment method for a straightforward electrical connection in the transmission control circuit.

Key Features

• Brand: Standard Ignition
• Part number: TCS121
• Automatic transmission control solenoid
• Female connector with oval connector shape
• Male blade terminals, 2-terminal design
• Metal construction
• Connector quantity: 1
• Attachment method: push on
• No gasket, hardware, mounting bracket, or wiring harness included

Detailed Description

Standard Ignition TCS121 is a transmission solenoid used in automatic transmission control systems where precise electrical actuation is required. The metal-bodied design and blade-terminal connection support service replacement in vehicles that use a single-solenoid configuration. This part cross-references 28250P7W003 for the same application. It is a direct replacement option for select Honda Accord, Honda Odyssey, Honda Pilot, Acura TL, Acura CL, and Acura MDX applications, including 2006-2007 Honda Accord, 2003-2004 Honda Accord, 2002-2006 Honda Odyssey, and 2003-2005 Honda Pilot.

What It Is Used For

• Restoring transmission solenoid electrical control
• Addressing shift quality concerns tied to solenoid operation
• Replacing a failed or worn automatic transmission control solenoid
• Correcting transmission warning lights related to solenoid circuit faults
• Supporting proper hydraulic control in the transmission

Installation Notes and Tips

Verify connector style, terminal layout, and transmission application before installation. This part uses a female connector, male blade terminals, and push-on attachment, so the mating connector and terminal orientation should match the original unit. No gasket, hardware, mounting bracket, or wiring harness is included, so reuse or source any required related components separately. Confirm vehicle-specific fitment for 2000-2006 Acura TL, 2001-2003 Acura CL, and 2001-2002 Acura MDX before service.

Quality Assurance

Standard Ignition supplies replacement electrical and transmission components for service applications. TCS121 is listed with confirmed fitment for select Honda and Acura models, including 2000-2006 Acura TL and 2006-2007 Honda Accord, to support accurate parts matching during repair.