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GMC Truck
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1999
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S15/T15 Sonoma P/U 4WD V6-4.3L VIN W
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S100 - S199
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S150
S150
Heated Oxygen Sensor Extension Harness:
(CKT 539) Heated oxygen sensor (HO2S) harness, between the breakouts to the RF and the post-catalytic heated oxygen sensors (HO2S), 10 cm (3.9 in) from the breakout to the RH sensor