Standard Ignition RY-395 Brake Light Relay

Brand Standard Ignition RY-395
Connector Gender Female
Connector Shape Rectangular
Contents Relay
Continuous Duty No
Functions Relay
Mounting Bracket(s) Included Yes
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits Chevrolet and Isuzu · 6 vehicles

OE-quality construction. Built to stringent standards with complete quality control throughout manufacturing.

Composite housing. Helps protect the relay from harsh temperatures and severe under-hood conditions.

Blade terminals. Four male blade terminals and a rectangular connector for a secure electrical connection.

Cross-references Eastern Catalytic 20429, 1R1777 and 56-2117 for the same application. See all 8.

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Brake Light Relay for Select Chevrolet and Isuzu Models

Standard Ignition RY-395 is a 12-volt brake light relay built for dependable electrical switching in select import and domestic applications. It is a direct-fit service part for 1985-1986 Chevrolet Spectrum and 1982-1985 Isuzu I-Mark vehicles.

Key Features

  • 12-volt brake light relay
  • Female connector with rectangular shape
  • 4 male blade terminals
  • Mounting bracket included
  • Composite housing helps protect the relay in harsh under-hood temperatures
  • Brass or copper contacts are used where specified for wear resistance
  • Manufactured under TS16949 and ISO9001 quality systems

Product Details

Standard Ignition RY-395 is engineered as a brake light relay for vehicles that rely on a dedicated relay to control brake lamp operation. The relay uses a single rectangular female connector and male blade terminals for a secure electrical interface, while the included mounting bracket supports stable installation. This part cross-references Eastern Catalytic 20429 for the same application. It is a practical replacement choice for Chevrolet Spectrum and Isuzu I-Mark brake light relay service, including 1985-1986 Chevrolet Spectrum and 1982-1985 Isuzu I-Mark applications.

Common Problems This Relay Can Address

  • Brake lights that do not illuminate consistently
  • Intermittent brake lamp operation caused by relay wear
  • Electrical switching faults in the brake light circuit
  • Heat-related relay housing deterioration
  • Connector or terminal fitment issues on the original relay

Installation Notes

Verify connector style, terminal count, and mounting location before installation. Confirm the vehicle uses a 12-volt brake light relay with a female rectangular connector and 4 blade terminals. Inspect the relay socket, terminals, and surrounding wiring for corrosion or heat damage before installing the replacement. For fitment-specific service, use this part on 1985-1986 Chevrolet Spectrum and 1982-1985 Isuzu I-Mark vehicles only.

Quality Assurance

Standard Ignition manufactures this relay with controlled quality processes and OE-focused production standards. Composite housing construction and specified metal contacts support durability in demanding electrical environments, and the part is produced in TS16949- and ISO9001-certified facilities.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1986ChevroletSpectrumN/A—
1985ChevroletSpectrumN/A—
1985IsuzuI-MarkN/A—
1984IsuzuI-MarkN/A—
1983IsuzuI-MarkN/A—
1982IsuzuI-MarkN/A—
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Eastern Catalytic — 204291R177756-211789057636941246680683000030AR541R4785