Standard Ignition SR-123 Starter Relay

Starter Relay for Jeep Applications

Standard Ignition SR-123 is a 12-volt starter relay built for Jeep starting-system service. It uses a rectangular connector shape, 5 male terminals, and a stud/blade terminal design to match the specified electrical layout on supported vehicles.

Compatible With Jeep Grand Wagoneer, Cherokee, Comanche, Wagoneer, Wrangler, J10, and J20 applications listed below, this relay is intended for direct replacement use where the original starter relay has failed or become unreliable. The SR-123 part number is also commonly referenced in cross-application service searches.

Key Features

• 12 V starter relay for electrical, charging, and starting system repair
• 25 amp amperage rating
• Rectangular connector shape with 5 male terminals
• Stud and blade terminal types for specified vehicle connections
• Mounting bracket(s) included
• Composite housing built for harsh under-hood temperatures and conditions
• Brass or copper contacts used where specified for wear resistance
• Manufactured under TS16949 and ISO9001 certified processes

Detailed Description

Standard Ignition SR-123 is a starter relay engineered for Jeep starting circuits that require a 12-volt relay with a 25 amp rating. The housing is made from composite material to help withstand heat and demanding under-hood environments, while specified brass or copper contacts support long-term electrical wear performance. Standard Ignition maintains quality control from component selection through final assembly, and the part is produced in TS16949 and ISO9001 certified facilities. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• No-crank condition when the starter relay is not switching power correctly
• Intermittent starting caused by worn relay contacts
• Starter engagement problems related to damaged relay terminals
• Heat-related relay failure in the engine compartment
• Electrical connection issues at the relay mounting point

Installation Notes and Tips

Verify the connector shape, terminal count, terminal type, and mounting bracket layout before installation. Confirm the vehicle uses a 12-volt starter relay with a rectangular connector and 5 male terminals. For Jeep Grand Wagoneer, Cherokee, Comanche, Wagoneer, Wrangler, J10, and J20 service, compare the original relay and terminal arrangement to the SR-123 before connecting the harness.

• Fits 1993 Jeep Grand Wagoneer, N/A
• Fits 1986-1991 Jeep Grand Wagoneer, N/A
• Fits 1988-1990 Jeep Cherokee, N/A
• Fits 1988-1990 Jeep Comanche, N/A
• Fits 1986 Jeep Comanche, N/A
• Fits 1988-1990 Jeep Wagoneer, N/A
• Fits 1984-1986 Jeep Wagoneer, N/A
• Fits 1987-1990 Jeep Wrangler, N/A
• Fits 1987-1988 Jeep J10, N/A
• Fits 1987-1988 Jeep J20, N/A

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements with TS16949 and ISO9001 certified production systems. The SR-123 is built with controlled materials and manufacturing processes to support consistent fit and electrical performance across the listed Jeep applications.