BWD SS633 Emergency Vehicle Lamp Relay

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• ACDelco 19140106
• ACDelco U978
• Cole Hersee 24144
• Airtex 1M1376
• Airtex 1M1377
• Standard Ignition SS-624
• Wells SS945
• Wells SS946
• CARQUEST Premium By WELLS 25-1924
• CARQUEST Premium By WELLS 25-1925
• Pollak 52-339
• CARQUEST Premium By WELLS 251924
• CARQUEST Premium By WELLS 251925
• Pollak 52339
• Standard Ignition SS624
• Echlin ST633
• Duralast RLYB10005
• Duralast RLYB10117
• Duralast SS945
• Duralast SS946

• Enhanced Protection and Performance: Polyester-insulated magnet wire, cadmium-plated copper discs, and solid contact bolts are used to reduce voltage drop and deliver full battery power to the starter.
• Heavy-Duty Copper Contacts: Our starter solenoids are equipped with heavy-duty copper contacts that minimize arcing effects and extend solenoid life, providing enhanced durability.
• Pure Copper Construction: Our battery terminal studs are crafted from pure copper, significantly reducing resistance and enabling higher current flow.
• Stronger Magnetic Field: With more pure copper windings than found on most vehicles, our starter solenoids create a stronger magnetic field, contributing to efficient vehicle start-up.