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Standard Ignition RY-383 Diesel Glow Plug RelayOE Quality 60-Day Returns
Part #: RY-383

Standard Ignition RY-383 Diesel Glow Plug Relay

185 vehicles fit this part
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Fitment: Chevrolet and GMC, C2500, C3500, Express 2500, Express 3500, K2500, K3500, Savana 2500, Savana 3500, C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, P30, Tahoe, P3500, C1500, K1500, Yukon, G30, G3500, G20, G2500, and Blazer
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Not what you need? See all Diesel Glow Plug Relay options

Diesel Glow Plug Relay for GM Diesel Applications

Standard Ignition RY-383 is a 12-volt diesel glow plug relay built for dependable electrical switching in demanding underhood environments. It is a direct-fit style replacement for a range of Chevrolet and GMC diesel applications, including Express, Savana, C/K truck, Suburban, Tahoe, Yukon, and P-series models.

With a rectangular connector shape, 3 blade terminals, and an included mounting bracket, this relay is built for straightforward service replacement where the original unit has failed or become intermittent.

Key Features

  • 12-volt diesel glow plug relay for ignition and preheat control
  • Rectangular connector shape for OE-style fitment
  • 3 male blade terminals for secure electrical connection
  • Mounting bracket(s) included for proper installation support
  • Composite housing helps protect against heat and harsh engine bay conditions
  • Brass or copper contacts are used where specified for wear resistance
  • Manufactured under TS16949 and ISO9001 certified quality systems

Detailed Description

Standard Ignition RY-383 is engineered for diesel starting systems that rely on a glow plug relay to manage current flow during cold starts. It serves Chevrolet Express 2500 and Express 3500, GMC Savana 2500 and Savana 3500, and a wide range of Chevrolet and GMC C/K, Suburban, Tahoe, Yukon, and P-series vehicles across the 1991-2002 model years. This part number, RY-383, is also cross-referenced to BBB Industries 19301 for the same application.

Standard Ignition uses durable composite housings and controlled manufacturing processes to help maintain consistent electrical performance. For buyers searching for a diesel glow plug relay for a 1994-2000 Chevrolet K2500, a 1995-1999 GMC Yukon, or a 1997-2002 Chevrolet Express 3500, this relay matches the required 12-volt, 3-terminal blade configuration.

Common Problems This Relay Can Address

  • Hard starting during cold weather
  • Glow plugs not receiving proper power
  • Intermittent or no preheat operation
  • Check engine or starting complaints tied to relay failure
  • Electrical switching issues caused by worn relay contacts

Installation Notes and Tips

  • Verify the connector shape, terminal count, and 12-volt system before installation.
  • Confirm vehicle-specific fitment for your Chevrolet or GMC application, especially on diesel-equipped models.
  • Inspect the harness terminals and mounting location for heat damage or corrosion before replacing the relay.
  • Use the included mounting bracket(s) to secure the relay in the original location.

Quality Assurance

Standard Ignition manufactures this relay under stringent quality requirements with TS16949 and ISO9001 certified plants. That process control helps ensure the part is built to the correct specification for the intended vehicle application.

BrandStandard Ignition
Part NumberRY-383
Connector ShapeRectangular
FunctionsRelay
Mounting Bracket(s) IncludedYes
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 185 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2002ChevroletExpress 2500DIESELN/A
2002ChevroletExpress 3500DIESELN/A
2002GMCSavana 2500DIESELN/A
2002GMCSavana 3500DIESELN/A
2001ChevroletExpress 2500DIESELN/A
2001ChevroletExpress 3500DIESELN/A
2001GMCSavana 2500DIESELN/A
2001GMCSavana 3500DIESELN/A
2000ChevroletC2500DIESELN/A
2000ChevroletC3500DIESELN/A
2000ChevroletExpress 2500DIESELN/A
2000ChevroletExpress 3500DIESELN/A
2000ChevroletK2500DIESELN/A
2000ChevroletK3500DIESELN/A
2000GMCC2500DIESELN/A
2000GMCC3500DIESELN/A
2000GMCK2500DIESELN/A
2000GMCK3500DIESELN/A
2000GMCSavana 2500DIESELN/A
2000GMCSavana 3500DIESELN/A
1999ChevroletC1500 SuburbanDIESELN/A
1999ChevroletC2500DIESELN/A
1999ChevroletC2500 SuburbanDIESELN/A
1999ChevroletC3500DIESELN/A
1999ChevroletExpress 2500DIESELN/A
1999ChevroletExpress 3500DIESELN/A
1999ChevroletK1500 SuburbanDIESELN/A
1999ChevroletK2500DIESELN/A
1999ChevroletK2500 SuburbanDIESELN/A
1999ChevroletK3500DIESELN/A
1999ChevroletP30DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1999ChevroletTahoeDIESELN/A
1999GMCC1500 SuburbanDIESELN/A
1999GMCC2500DIESELN/A
1999GMCC2500 SuburbanDIESELN/A
1999GMCC3500DIESELN/A
1999GMCK1500 SuburbanDIESELN/A
1999GMCK2500DIESELN/A
1999GMCK2500 SuburbanDIESELN/A
1999GMCK3500DIESELN/A
1999GMCP3500DIESELN/A
1999GMCSavana 2500DIESELN/ACompatible with vehicles equipped with Federal Emissions.
1999GMCSavana 3500DIESELN/ACompatible with vehicles equipped with Federal Emissions.
1998ChevroletC1500DIESELN/A
1998ChevroletC1500 SuburbanDIESELN/A
1998ChevroletC2500DIESELN/A
1998ChevroletC2500 SuburbanDIESELN/A
1998ChevroletC3500DIESELN/A
1998ChevroletExpress 2500DIESELN/A
1998ChevroletExpress 3500DIESELN/A
1998ChevroletK1500DIESELN/A
1998ChevroletK1500 SuburbanDIESELN/A
1998ChevroletK2500DIESELN/A
1998ChevroletK2500 SuburbanDIESELN/A
1998ChevroletK3500DIESELN/A
1998ChevroletP30DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1998ChevroletTahoeDIESELN/A
1998GMCC1500 SuburbanDIESELN/A
1998GMCC2500DIESELN/A
1998GMCC2500 SuburbanDIESELN/A
1998GMCC3500DIESELN/A
1998GMCK1500DIESELN/A
1998GMCK1500 SuburbanDIESELN/A
1998GMCK2500DIESELN/A
1998GMCK2500 SuburbanDIESELN/A
1998GMCK3500DIESELN/A
1998GMCP3500DIESELN/A
1998GMCSavana 2500DIESELN/A
1998GMCSavana 3500DIESELN/A
1997ChevroletC1500DIESELN/A
1997ChevroletC1500 SuburbanDIESELN/A
1997ChevroletC2500DIESELN/A
1997ChevroletC2500 SuburbanDIESELN/A
1997ChevroletC3500DIESELN/A
1997ChevroletExpress 2500DIESELN/A
1997ChevroletExpress 3500DIESELN/A
1997ChevroletK1500DIESELN/A
1997ChevroletK1500 SuburbanDIESELN/A
1997ChevroletK2500DIESELN/A
1997ChevroletK2500 SuburbanDIESELN/A
1997ChevroletK3500DIESELN/A
1997ChevroletP30DIESELN/A
1997ChevroletTahoeDIESELN/A
1997GMCC1500DIESELN/A
1997GMCC1500 SuburbanDIESELN/A
1997GMCC2500DIESELN/A
1997GMCC2500 SuburbanDIESELN/A
1997GMCC3500DIESELN/A
1997GMCK1500DIESELN/A
1997GMCK1500 SuburbanDIESELN/A
1997GMCK2500DIESELN/A
1997GMCK2500 SuburbanDIESELN/A
1997GMCK3500DIESELN/A
1997GMCP3500DIESELN/A
1997GMCSavana 2500DIESELN/A
1997GMCSavana 3500DIESELN/A
1997GMCYukonDIESELN/A
1996ChevroletC15006.5LV8N/A
1996ChevroletC1500 SuburbanDIESELN/A
1996ChevroletC2500DIESELN/A
1996ChevroletC2500 SuburbanDIESELN/A
1996ChevroletC3500DIESELN/A
1996ChevroletExpress 2500DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996ChevroletExpress 3500DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996ChevroletG30DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996ChevroletK1500DIESELN/A
1996ChevroletK1500 SuburbanDIESELN/A
1996ChevroletK2500DIESELN/A
1996ChevroletK2500 SuburbanDIESELN/A
1996ChevroletK3500DIESELN/A
1996ChevroletP30DIESELN/A
1996ChevroletTahoeDIESELN/A
1996GMCC15006.5LV8DIESELN/A
1996GMCC1500 SuburbanDIESELN/A
1996GMCC2500DIESELN/A
1996GMCC2500 SuburbanDIESELN/A
1996GMCC3500DIESELN/A
1996GMCG3500DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996GMCK1500DIESELN/A
1996GMCK1500 SuburbanDIESELN/A
1996GMCK2500DIESELN/A
1996GMCK2500 SuburbanDIESELN/A
1996GMCK3500DIESELN/A
1996GMCP3500DIESELN/A
1996GMCSavana 2500DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996GMCSavana 3500DIESELN/A3 Terminal Manifold Absolute Pressure Sensor
1996GMCYukonDIESELN/A
1995ChevroletC1500DIESELN/A
1995ChevroletC1500 SuburbanDIESELN/A
1995ChevroletC2500DIESELN/A
1995ChevroletC2500 SuburbanDIESELN/A
1995ChevroletC3500DIESELN/A
1995ChevroletG20DIESELN/A
1995ChevroletG30DIESELN/A
1995ChevroletK1500DIESELN/A
1995ChevroletK1500 SuburbanDIESELN/A
1995ChevroletK2500DIESELN/A
1995ChevroletK2500 SuburbanDIESELN/A
1995ChevroletK3500DIESELN/A
1995ChevroletP30DIESELN/A
1995ChevroletTahoeDIESELN/A
1995GMCC1500DIESELN/A
1995GMCC1500 SuburbanDIESELN/A
1995GMCC2500DIESELN/A
1995GMCC2500 SuburbanDIESELN/A
1995GMCC3500DIESELN/A
1995GMCG2500DIESELN/A
1995GMCG3500DIESELN/A
1995GMCK1500DIESELN/A
1995GMCK1500 SuburbanDIESELN/A
1995GMCK2500DIESELN/A
1995GMCK2500 SuburbanDIESELN/A
1995GMCK3500DIESELN/A
1995GMCP3500DIESELN/A
1995GMCYukonDIESELN/A
1994ChevroletBlazerDIESELN/A
1994ChevroletC1500DIESELN/A
1994ChevroletC2500DIESELN/A
1994ChevroletC2500 SuburbanDIESELN/A
1994ChevroletC3500DIESELN/A
1994ChevroletG20DIESELN/A
1994ChevroletG30DIESELN/A
1994ChevroletK1500DIESELN/A
1994ChevroletK2500DIESELN/A
1994ChevroletK2500 SuburbanDIESELN/A
1994ChevroletK3500DIESELN/A
1994ChevroletP30DIESELN/A
1994GMCC1500DIESELN/A
1994GMCC2500DIESELN/A
1994GMCC2500 SuburbanDIESELN/A
1994GMCC3500DIESELN/A
1994GMCG2500DIESELN/A
1994GMCG3500DIESELN/A
1994GMCK1500DIESELN/A
1994GMCK2500DIESELN/A
1994GMCK2500 SuburbanDIESELN/A
1994GMCK3500DIESELN/A
1994GMCP3500DIESELN/A
1994GMCYukonDIESELN/A
1993ChevroletP30DIESELN/A
1993GMCP3500DIESELN/A
1992ChevroletP30DIESELN/A
1992GMCP3500DIESELN/A
1991ChevroletP30DIESELN/A
1991GMCP3500DIESELN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12088560193011R137253-21504AR579DR1095DT650007GPC1004GPC5GPR105HDC907

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.