wmw.workhorse.com---My question is that when you are out and no where near a workhorse, why can't one cross reference a workhorse part. For example, rv dealears say you must use workhorse parts when in all reality a part from auto zone or some other place will fill the bill. Again , a remy 145 amp alternator is exactly like a workhorse part at half the price. I paid 480 bucks for a workhorse part when i could have the part at auto zone for 217 dollars and could have save me milage trying to get the workhorse part...