Dorman - TECHoice Headlight Socket P/N:645-303
Dorman 645-540 headlamp socket for the 2006-2010 Mazda 5 and other vehicles is a wire pigtail that replaces a damaged socket and has two female blade terminals.
A flickering or dead headlight, melted or darkened plastic, or green corrosion on the contacts can mean the socket is worn. A bulb or a wiring fault can show the same signs, so with the engine off and the lights off, look over the bulb and the old socket before you replace anything.
This socket also fits the 2004-2009 Mazda 3 and the 2001-2003 Mazda Protege. If your Mazda is a different year or model, enter it in the Buyer's Guide tab to see whether this socket is made for it.
Fit and size
Build and materials
One socket, and a vehicle takes one. A retainer is not included.
Interchange: 1P2071 · B28V510A3 · B28V510A3A · 1439
This part cross-references / interchanges with the following part numbers:
Does the Dorman 645-540 headlamp socket fit a 2006-2010 Mazda 5?
Yes, the Dorman 645-540 fits the 2006-2010 Mazda 5. It also fits the 2004-2009 Mazda 3.
Does this headlamp socket come with a retainer?
No. This listing is one socket pigtail, and a retainer is not included.
How many terminals does this Dorman headlamp socket have?
The Dorman 645-540 has two female blade terminals on two wires. Its overall length is 1.5 in, and the connector is oval.
How can I tell a headlight socket is going bad?
Lights that flicker or stay dark, plastic that looks melted or darkened, and corroded contacts can all point to a worn socket. A shop can test the wiring if you are unsure.
Is the Dorman 645-540 a full harness or just the socket?
The Dorman 645-540 is a wire pigtail socket. It replaces only the damaged socket by splicing into the existing vehicle wiring.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.