5-Pin Headlight Relay 12 Volt. 111-941-583AC 111941583AC Was £18.00 - Now £16.20! inc. VAT (where applicable) Quantity: at £16.20 each Add To Basket 5-Pin headlight relay 12 Volt. Correct for '70 on Bay window, but will work on any 12 Volt Split bus. More modern equivalent of the original. And T25 MODELS.