Dorman 645-734 Turn Signal Light Socket - Front

Brand Dorman 645-734
Position Front
Overall Length 1.1
Package Contents Lamp Socket
Terminal Design Blade
Terminal Gender Female
Terminal Material Plastic
Water Resistant No
Wire Pigtail Included No
Wire Quantity 0
Fits Buick · 6 vehicles

OE-style replacement. Matches the original socket's fit and function.

Blade terminals. Female terminals provide a secure electrical connection.

Lamp socket. A durable electrical socket for reliable performance.

Cross-references BENDIX PREMIUM BRAKE SHOES 856, Standard Ignition S-1023 and 1P1487 for the same application. See all 6.

$31.42Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $31.42
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 645-734 Turn Signal Light Socket

Dorman 645-734 is a turn signal light socket built to match the fit and function of the original socket on specified vehicles. It is made for reliable electrical connection and durable everyday performance in the lighting circuit.

  • Direct replacement turn signal light socket for specified applications
  • Female terminal design with blade-style terminals
  • Plastic terminal material
  • Overall length: 1.1 in.
  • Package contents: lamp socket
  • No wire pigtail included
  • No wire quantity listed

Fitment and Application

Fits 2000-2005 Buick LeSabre, front park and turn signal. This Dorman 645-734 socket is a direct-fit electrical socket for the front lighting position on Buick LeSabre models from 2000 through 2005. Compare with the original socket before installation to confirm terminal gender and connector style.

This part cross-references Standard Ignition S-1023 for the same application.

What It Helps Fix

  • Intermittent front turn signal operation
  • Corrosion or wear at the socket terminals
  • Loose or damaged lamp connection
  • Heat-related socket deterioration
  • Lighting faults caused by a failed original socket

Installation Notes

Verify the original socket’s terminal gender, blade terminal design, and overall length before installation. This Dorman 645-734 socket does not include a wire pigtail, so inspect the existing harness and connector condition during service. Compare with the original socket on the vehicle to confirm proper fit on the front park and turn signal lamp location.

Quality Assurance

Dorman engineers this socket to match original fit and function for the listed Buick LeSabre applications. It is built for dependable electrical performance in the vehicle’s lighting system.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2005BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
2004BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
2003BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
2002BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
2001BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
2000BuickLeSabreFrontPark and Turn Signal; Compare w/Original Socket; Terminal Gender: Female
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BENDIX PREMIUM BRAKE SHOES — 856Standard Ignition — S-10231P148712335587LS233PT5900