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Auto Parts Gallery - Electrical

What is it? LS 770 fan switch connector. What does it fit? GM applications with DR 137S, DR 137T, DR 137W or DR 137X fan switches. What else does it fit? Some GM knock sensors. Why does it fail? It breaks due to heat-related deterioration of the plastic. What happens when it fails? Loss of the cooling fan, engine damage and/or A/C system failure.

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