Standard Ignition SR-121 Starter Relay

Reliable Starter Relay for Chrysler, Dodge, and Plymouth Vehicles

The Standard Ignition SR-121 starter relay is designed to provide dependable electrical performance for a range of Chrysler, Dodge, and Plymouth models. Engineered to meet OEM specifications, this relay ensures consistent starting system operation in vehicles such as the Dodge Caravan, Plymouth Sundance, and Chrysler Town & Country.

• Amperage rating of 20 amps for stable current handling
• Female rectangular connector with one connector for secure fit
• Includes mounting bracket(s) for easy installation
• Four male blade terminals for reliable electrical connections
• Designed as a relay for starting system applications
• Continuous duty: No, suitable for intermittent use in starting circuits

Technical Details and Compatibility

The Standard Ignition SR-121 starter relay features a 20 amp amperage rating, making it suitable for the electrical demands of starting systems in various Chrysler, Dodge, and Plymouth vehicles. The relay includes a female rectangular connector with one connector quantity, ensuring a precise fit with the vehicle’s wiring harness. Four male blade terminals provide secure and efficient electrical contact. The included mounting bracket(s) simplify the installation process by allowing the relay to be firmly attached within the engine compartment.

This relay is compatible with multiple models including the Dodge Dakota, Plymouth Acclaim, Chrysler LeBaron, and Ram 2500, among others. Its design supports the specific electrical requirements of these vehicles, helping maintain reliable engine starting performance.

Common Applications and Problem Resolution

• Resolves intermittent or no-start conditions caused by faulty starter relays
• Replaces relays with damaged or corroded terminals affecting electrical flow
• Addresses relay failures that cause clicking sounds without engine turnover
• Restores proper relay function in vehicles experiencing electrical shorts or relay overheating
• Improves starting system reliability in Chrysler, Dodge, and Plymouth models

Installation Notes and Tips

When installing the Standard Ignition SR-121 starter relay, ensure the vehicle’s battery is disconnected to prevent electrical shorts. Use the included mounting bracket(s) to secure the relay in the designated location, typically near the starter or fuse box. Verify that the female rectangular connector aligns correctly with the vehicle’s wiring harness and that all four male blade terminals are fully seated. After installation, test the starting system to confirm proper relay operation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The SR-121 starter relay undergoes rigorous quality control testing to verify electrical specifications and fitment accuracy. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.