Standard Ignition RY1868 Diesel Glow Plug Relay
OE Quality 60-Day Returns
Standard Ignition

Standard Ignition RY1868 Diesel Glow Plug Relay

Brand Standard Ignition RY1868
Connector Gender Male
Connector Quantity 4
Continuous Duty No
Functions Relay
Mounting Bracket(s) Included Yes
Terminal Gender Male
Terminal Quantity 4
Terminal Type Stud
Voltage 12
Fits —

Durable composite housing. Helps protect the relay from heat and harsh underhood conditions.

Aluminum contacts. Built for dependable conductivity and long service life.

Epoxy-sealed design. Helps keep out dust, heat, and moisture.

Cross-references Carlson 16213, 1R3374 and 4C4Z12B533AA for the same application. See all 8.

$72.26Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $72.26
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Diesel Glow Plug Relay options

Diesel Glow Plug Relay for 12V Systems

Standard Ignition RY1868 is a diesel glow plug relay built for 12-volt electrical systems and demanding underhood conditions. It uses a 4-pin male connector layout with stud terminals and includes a mounting bracket for secure installation.

Key Features

  • 12-volt diesel glow plug relay for glow plug circuit control
  • 4 connector positions with male connector and male stud terminals
  • Mounting bracket included for stable placement
  • Composite housing helps protect against heat and severe engine-bay conditions
  • Aluminum contacts support durability and long service life
  • Epoxy-sealed construction helps resist dust, heat, and moisture
  • Manufactured in TS16949 and ISO9001 certified facilities

Application Details

Standard Ignition RY1868 is used in diesel starting systems that rely on a glow plug relay to manage current flow during cold starts. It is a direct-fit electrical relay solution for diesel truck and van repair work where reliable glow plug operation is required. This part cross-references Carlson 16213 for the same application. RY1868 is also referenced in OE-style interchange listings including 1R3374 and 4C4Z12B533AA.

What It Helps Resolve

  • Hard starting in cold weather
  • Glow plugs not receiving power
  • Intermittent relay operation
  • Electrical issues caused by heat, dust, or moisture exposure
  • Relay failure from worn internal contacts

Installation Notes

Verify the connector style, terminal type, and 12-volt system requirements before installation. Inspect the glow plug circuit, wiring, and related fuses for damage before replacing the relay. Confirm the mounting location and bracket alignment during service. For vehicle-specific search needs, this relay is commonly sought for diesel truck and van applications, including Ford diesel glow plug relay replacement searches tied to RY1868.

Quality Assurance

Standard Ignition manufactures this relay in a TS16949 and ISO9001 certified facility. The composite housing, aluminum contacts, and epoxy sealing are selected to support consistent electrical performance in harsh engine-bay environments. For buyers comparing diesel glow plug relay options, RY1868 is built with materials and construction focused on durability and long-term service.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Carlson — 162131R33744C4Z12B533AA1840861C1DY989GPR203R7371RAC2662