SKU: 8563125931

70-71 Manual TCS Transmission Switch (Pin Terminal) - Out of Stock

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Description

70-71 Manual TCS Transmission Switch (Pin Terminal) - Out of StockReproduction 1970 1971 Corvette TCS transmission switch. Correct for manual transmission equipped Corvettes. Includes "pin" type electrical connection. Switch threads into the transmission providing electrical signal for TCS solenoid on intake manifold. GM Part 3961567 Transmission Controlled Spark (TCS) System controls exhaust emissions by eliminating vacuum advance in the lower forward gears while at operating temperature. The TCS intake manifold

Reproduction 1970-1971 Corvette TCS transmission switch. Correct for manual transmission equipped Corvettes. Includes "pin" type electrical connection. Switch threads into the transmission providing electrical signal for TCS solenoid on intake manifold.

GM Part 3961567

Transmission Controlled Spark (TCS) System controls exhaust emissions by eliminating vacuum advance in the lower forward gears while at operating temperature. The TCS intake manifold solenoid controls vacuum to the distributor's vacuum advance unit. The solenoid determines when, and how much, vacuum to release. Typically, a vacuum line from the carburetor enters the solenoid and another vacuum line exits the solenoid to the distributor vacuum advance unit (some applications have multiple inlet and outlet lines). The TCS solenoid relies on an electrical signal provided by other TCS system switches/senders via an electrical connection on the back or side of the solenoid (Engine Harness or TCS Harness plugs into this connection).

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SKU: 8563125931

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Benjamin Argabright
Belleville, US
★★★★★ 5
My wife says its shiny and pretty!
Fits my 2005 Escape perfect. Works great!
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Reviewed in the United States on April 12, 2026
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Takota Lenfest
Los Angeles, US
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This was definitely a great purchase! I put it in my moms truck and it works great no issues at all
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Reviewed in the United States on November 26, 2025
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Austin Birge
Phoenix, US
★★★★★ 5
OE quality part!
Great product! A-Premium always comes in clutch with the affordable parts that are built well ! Fit perfectly on my 2011 Ford Escape 3.0. Only took me 20 minutes to install.
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Reviewed in the United States on April 13, 2026
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wano81
Battle Creek, US
★★★★★ 5
Quality part at a low price!
Low price for a quality part. Fit my 2006 Ford Escape perfectly and works great with no problems. Installed by a professional mechanic.
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Reviewed in the United States on October 11, 2025
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Ignacio Cesar de los Reyes Pico
Bozeman, US
★★★★★ 5
Buenisimo
de manera confiable y enciende el vehículo sin problemas. Material resistente y duradero, fácil de instalar y compatible con el modelo del carro. Muy recomendable para mantener el vehículo en óptimas condiciones.
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Reviewed in the United States on October 2, 2025

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