Bought this for keyless entry but ended up not needing it. A week later my son needed a relay for secondary fan in his Jeep Cherokee. I was surprised when he told me none of the local auto stores stocked the correct relay. I actually ended up with two of these so I gave him one since it was the same relay. Im sure the autoparts stores would have charged $25-30 if they had one in stock so we also saved about $20. Good deal all around.