Standard Ignition RY-238 Wiring Relay

Standard Ignition RY-238 Wiring Relay Overview

Standard Ignition RY-238 is a 12-volt wiring relay built for starter relay applications and demanding under-hood electrical service. It uses a 30 amp amperage rating, a 4-terminal layout, and a female-to-female connector design with a round connector shape for direct replacement use in supported vehicles.

Compatible With Chevrolet and GMC trucks, SUVs, and emergency-vehicle applications across 1987-1996 model years, including Chevrolet Blazer, C/K Series, Tahoe, and GMC Jimmy, Yukon, and C/K Series platforms. Standard Ignition RY-238 is a practical OE-style relay choice for vehicles that need reliable starter circuit control.

Key Features

• 12-volt wiring relay with 30 amp amperage rating
• Starter relay function for electrical circuit switching
• 4 connector and 4 terminal design
• Female connector ends with male screw-and-blade terminals
• Round connector shape with mounting bracket(s) included
• Composite housing built for harsh temperature and under-hood conditions
• Brass or copper contacts where specified for wear resistance

Detailed Description

RY-238 is engineered by Standard Ignition, a global OE ignition manufacturer that controls production from component materials through final assembly. The relay uses durable composite housing construction to help withstand heat, vibration, and severe engine-bay conditions, while specified brass or copper contacts support long service life. Manufacturing is backed by TS16949 and ISO9001 certified plants, helping ensure consistent fit and function for the right vehicle application.

This part cross-references 15555675 and 1R1351 for the same application. It is a strong match for long-tail searches such as Chevrolet Blazer emergency vehicle light relay, GMC Jimmy 2 screw 2 blade terminal relay, and 1995-1996 Tahoe roof light relay replacement. Standard Ignition RY-238 also serves Chevrolet C1500, K1500, C2500, K2500, and related GMC C/K truck applications listed in the fitment data.

What This Relay Helps Solve

• Starter relay failure causing no-crank conditions
• Intermittent electrical switching in under-hood circuits
• Corrosion or wear at relay contacts
• Heat-related relay housing damage
• Replacement needs for OE number 15555675 applications

Installation Notes and Tips

Verify connector style, terminal count, and OE reference before installation. This relay uses a 4-terminal configuration with screw-and-blade terminals, so matching the original wiring layout is important for proper operation. Confirm the vehicle’s relay location and application notes, especially on emergency-light, camper-package, and roof-light equipped models.

• Fits 1994-1996 Chevrolet Blazer, N/A, w/ 5x7 (Roof Lights); OE No. 15555675
• Fits 1995-1996 Chevrolet Tahoe, N/A, w/ 5x7 (Roof Lights); OE No. 15555675
• Fits 1994-1996 Chevrolet C1500, N/A, OE No. 15555675; Emergency Lights, w/ 5x7 Inch (Roof Lights)
• Fits 1994-1996 GMC C1500, N/A, 2 Screw, 2 Blade Term.
• Fits 1994-1996 GMC K1500, N/A, 2 Screw, 2 Blade Term.
• Fits 1987-1991 GMC Jimmy, N/A, 2 Screw, 2 Blade Term.

Quality Assurance

Standard Ignition manufactures this relay under controlled quality processes with TS16949 and ISO9001 certified production systems. The brand’s OE-focused manufacturing approach supports consistent part selection for supported Chevrolet and GMC applications.