Using H4 Headlight Bulbs with 3 Prongs on 1964 Cadillac with 2 Prong Receptacle

Updated 08/12/2014 | Published 08/10/2014

Products Featured in This Question

Putco Wiring Harness for H4 Halogen Bulbs

(1)

$3.65

Putco Heavy-Duty Harness and Relay for H4 Halogen Bulbs

(5)

$53.95

Question:

I have a 1964 Cadillac with has 2 low beam headlights and 2 high beam headlights. Im changing them from the stock sealed beam lights to h4 bulbs. My problem is one of the plugs is a 3 prong and the other is a 2 prong plug and the h4 bulbs are 3 prong. How do I convert my 2 prong plug to fit than h4 bulb. Thank you

asked by: Frank

Expert Reply:

My dad used to have a 1967 Cadillac Sedan DeVille. I have been inside and out of the car helping him work on it. I think your best option is to use wiring harness # P239003HD. It has a 3-prong receptacle and the wiring for the bulb.

Better yet you could use # P230004HW which includes the heavier wire and receptacles along with relays to protect the old wiring on your Caddy.

expert reply by: Michael H