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GM TPI Products

Knock Sensors

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KNOCK SENSOR: 1985-89 TPI & 1986-92 TBI

CODE: MA209

$65.00
Part # MA209 Used on all 1985 and later TPI and TBI engines to detect the presence of spark knock (detonation). Usually mounted in the block drain, but may... More
KNOCK SENSOR: 1990-93 TPI / LT-1 & 1993-95 TBI

CODE: SD208

$65.00
Part # SD208 Used on all 1991 and later TPI and TBI engines to detect the presence of spark knock (detonation). Usually mounted in the block drain, but may... More