Ignition Electrical Switch 74-79. 111-905-865L 111905865L £10.50 inc. VAT (where applicable) Quantity: at £10.50 each Add To Basket Top quality ignition switch. Comes with the 4 terminals. Fits Bay Window 74-79. This is the switch inside where you turn the key to start, and normally is at fault if there is a problem with starting, also the easiest part to change.