Standard Motor Products SR-121 Starter Relay

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

• Chrysler 5227300
• General Motors 12351076
• Kem SR21
• ACDelco 12351076
• ACDelco C1757
• MasterPro 2-DR1018
• MasterPro 2DR1018
• Airtex 1S5032
• CARQUEST Premium By WELLS 56-2487
• Advan-tech 5N2
• Echlin SR21
• Duralast 16123
• NAPA Mileage Plus SR21SB
• CARTEK DR1018
• MasterPro Ignition 2-DR1018
• Duralast RLYB10128
• BWD S5030
• CARQUEST Premium By WELLS 562487

• Built to Last: Our relays feature high-quality composite housings that protect against harsh temperatures and the most demanding under-hood conditions, ensuring lasting reliability.
• Certified Quality: Manufactured at TS16949 and ISO9001 certified facilities, our relays meet the highest industry standards, guaranteeing top-notch quality.
• Enhanced Wear Resistance: Featuring brass or copper contacts where specified, our relays offer extended wear resistance, ensuring reliability even in high-stress applications.
• Renowned Global Manufacturer: As a global manufacturer of original equipment ignition products, we maintain complete quality control throughout the manufacturing process from componentry to finished product.