Standard Ignition RY-91 Automatic Transmission Torque Converter Clutch Relay

Brand Standard Ignition RY-91
Amperage Rating 10
Connector Gender Female
Connector Shape Rectangular
Continuous Duty No
Functions Relay
Mounting Bracket(s) Included No
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits Nissan, INFINITI, and Mercury · 356 vehicles

Relay function. Controls A/C, heating, and defrosting circuits.

12-volt design. Built for standard automotive electrical systems.

Blade terminals. Features a 6-terminal blade connection.

Cross-references Davico Mfg 19415, Four Seasons 35844 and Rostra Powertrain Controls 60-0091 for the same application. See all 18.

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Automatic Transmission Relay for Nissan and Infiniti

Standard Ignition RY-91 is a 12-volt automatic transmission torque converter clutch relay built for vehicles that use a 6-terminal blade-style relay with a female connector. It is specified for 10-amp operation and supports A/C, heating, and defrosting functions in the listed applications.

Compatible With Nissan Maxima, Pathfinder, Sentra, Altima, 240SX, 300ZX, and Infiniti Q45, G20, I30, J30, M30, QX4, FX35, FX45, and more across model years from 1977 through 2007.

  • Standard Ignition RY-91 relay for transmission-related electrical control
  • 12 V relay with 10 A amperage rating
  • Female connector with 1 polygon-shaped connector interface
  • 6 male blade terminals for listed OE-style applications
  • Used in systems serving A/C, heating, and defrosting functions
  • Cross-references Four Seasons 35844 for the same application

Detailed Product Overview

This relay is used in automatic transmission control circuits where torque converter clutch operation depends on a properly functioning electrical relay. Standard Ignition RY-91 is listed across a wide range of Nissan and Infiniti applications, including Nissan Frontier, Pathfinder, Sentra, Xterra, Maxima, and Infiniti Q45, I30, and G20 platforms. The fitment data also includes several OE-numbered and connector-specific applications, such as gray, brown, and Jideco/Niles variants, so matching the connector style and terminal count is important during replacement.

Common Problems This Relay Can Address

  • Torque converter clutch relay failure causing transmission control issues
  • Intermittent electrical operation in A/C, heating, or defrost circuits
  • No-start or no-command conditions related to relay switching
  • Incorrect relay fitment when the original unit uses a 6-blade terminal layout
  • Electrical contact wear in older Nissan and Infiniti relay applications

Installation Notes and Tips

Verify the connector shape, terminal count, and terminal gender before installation. This part does not include mounting hardware or a mounting bracket, and it has no mounting holes. Several fitments require specific relay variants by color, supplier, or production date, including some Nissan Maxima, Pathfinder, Sentra, and Infiniti Q45 applications. Confirm the OE number and connector style against the original relay before replacement.

Quality Assurance

Standard Ignition supplies this relay as a direct-fit electrical replacement for the listed applications. Part number RY-91 is also referenced in interchange data for related aftermarket and OE-style applications, including Rostra Powertrain Controls 60-0091.

This part fits 356 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2007INFINITIFX35———N/A—
2007INFINITIFX45———N/A—
2006INFINITIFX35———N/A—
2006INFINITIFX45———N/A—
2006INFINITIQ45———N/A—
2005INFINITIFX35———N/A—
2005INFINITIFX45———N/A—
2005INFINITIQ45———N/A—
2005NissanFrontier———N/A—
2004INFINITIFX35———N/A—
2004INFINITIFX45———N/A—
2004INFINITIQ45———N/A—
2003INFINITIFX35———N/A—
2003INFINITIFX45———N/A—
2003INFINITIQ45———N/A—
2002INFINITIG20———N/A—
2002INFINITIG20Automatic——N/A—
2002INFINITII35———N/A—
2002INFINITII35—3.5LV6N/A—
2002INFINITIQ45———N/A—
2002INFINITIQX4———N/A—
2002MercuryVillager———N/A6 Term.
2002MercuryVillager———N/A6 Blade Term.
2002MercuryVillager———N/A—
2002NissanFrontier———N/A—
2002NissanFrontierAutomatic2.4LL4N/A—
2002NissanFrontierAutomatic3.3LV6N/A—
2002NissanMaxima———N/A—
2002NissanMaximaAutomatic——N/A—
2002NissanPathfinder———N/AJideco; Gray
2002NissanPathfinder———N/ABrown
2002NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2002NissanSentraAutomatic2.5LL4N/ANiles; Jideco
2002NissanSentra———N/A—
2002NissanXterra———N/A—
2002NissanXterraAutomatic3.3LV6N/A—
2001INFINITIG20———N/A—
2001INFINITIG20Automatic——N/A—
2001INFINITII30———N/A—
2001INFINITII30———N/AJideco; Gray
2001INFINITII30———N/AJideco
2001INFINITIQ45———N/ATo 1/01
2001INFINITIQ45———N/A—
2001INFINITIQX4———N/A—
2001MercuryVillager———N/A6 Term.
2001MercuryVillager—3.3LV6N/A—
2001MercuryVillager———N/A—
2001NissanAltimaAutomatic——N/A—
2001NissanFrontierAutomatic——N/A—
2001NissanFrontier———N/A—
2001NissanMaxima———N/A—
2001NissanMaximaAutomatic——N/A—
2001NissanPathfinder———N/ANiles; Jideco; Gray
2001NissanSentraAutomatic2.0LL4N/ANiles; Jideco
2001NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2001NissanXterra———N/A—
2001NissanXterraAutomatic3.3LV6N/A—
2000INFINITIG20———N/A—
2000INFINITIG20Automatic——N/A—
2000INFINITII30———N/A—
2000INFINITII30———N/AJideco; Gray
2000INFINITII30———N/AJideco
2000INFINITIQ45———N/A—
2000INFINITIQX4———N/A—
2000MercuryVillager———N/A6 Term.
2000MercuryVillager———N/A—
2000MercuryVillager—3.3LV6N/A—
2000NissanAltimaAutomatic——N/A—
2000NissanFrontierAutomatic——N/A—
2000NissanFrontier———N/A—
2000NissanMaxima———N/A—
2000NissanMaximaAutomatic——N/A—
2000NissanPathfinder———N/A—
2000NissanPathfinder———N/ABrown
2000NissanSentra—2.0LL4N/A—
2000NissanSentra———N/AFrom 1/00
2000NissanSentraAutomatic2.0LL4N/ANiles; Jideco
2000NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2000NissanXterra———N/A—
2000NissanXterraAutomatic3.3LV6N/A—
1999INFINITIG20———N/A—
1999INFINITIG20Automatic——N/A—
1999INFINITII30———N/A—
1999INFINITII30Automatic——N/A—
1999INFINITIQ45———N/A6 Term.
1999INFINITIQ45———N/A—
1999INFINITIQX4———N/A—
1999MercuryVillager———N/A6 Term.
1999MercuryVillager———N/A—
1999MercuryVillager—3.3LV6N/A—
1999NissanAltimaAutomatic——N/A—
1999NissanFrontierAutomatic——N/A—
1999NissanFrontier———N/A—
1999NissanMaximaAutomatic——N/A—
1999NissanMaxima———N/A—
1999NissanPathfinder———N/A—
1999NissanPathfinder———N/ABrown
1999NissanQuest———N/A—
1998INFINITII30———N/A—
1998INFINITII30Automatic——N/A—
1998INFINITIQ45———N/A6 Term.
1998INFINITIQ45———N/A—
1998INFINITIQX4———N/A—
1998MercuryVillager———N/A6 Term.
1998MercuryVillager—3.0LV6N/A—
1998MercuryVillager———N/A—
1998NissanAltimaAutomatic——N/A—
1998NissanFrontierAutomatic——N/A—
1998NissanFrontier———N/A—
1998NissanPathfinder———N/A—
1998NissanPathfinder———N/ABrown
1997INFINITII30———N/A—
1997INFINITII30Automatic——N/A—
1997INFINITIJ30———N/A—
1997INFINITIQ45———N/A6 Term.
1997INFINITIQ45———N/A—
1997INFINITIQX4———N/A—
1997MercuryVillager———N/A6 Term.
1997MercuryVillager———N/A—
1997MercuryVillager—3.0LV6N/A—
1997Nissan200SX———N/AOE No. 25230-C9962, 72; 6 Term.
1997Nissan240SX———N/AOE No. 25230-C9962, 72; 6 Term.
1997NissanAltima———N/AOE No. 25230-C9962, 72; 6 Term.
1997NissanMaxima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanPathfinder———N/AOE No. 25230-C9962, 72; 6 Term.
1997NissanPathfinder———N/ABrown
1997NissanPickup———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanQuest———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanSentra———N/Aw/ Skirt; 6 Term.
1996INFINITIG20———N/AGray
1996INFINITIG20———N/A—
1996INFINITII30———N/A—
1996INFINITII30Automatic——N/A—
1996INFINITIJ30———N/A—
1996INFINITIQ45———N/A6 Term.
1996INFINITIQ45———N/A—
1996MercuryVillager———N/A6 Term.
1996MercuryVillager———N/A—
1996MercuryVillager—3.0LV6N/A—
1996Nissan200SX———N/AOE No. 25230-C9962, 72; 6 Term.
1996Nissan200SXAutomatic——N/A—
1996Nissan240SX———N/AOE No. 25230-C9962, 72; 6 Term.
1996Nissan300ZX———N/A—
1996NissanAltima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanMaxima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanMaxima———N/A—
1996NissanPathfinder———N/AOE No. 25230-C9962, 72; 6 Term.
1996NissanPathfinder———N/ABrown
1996NissanPathfinder———N/AGray
1996NissanPickup———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanQuest———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanSentra———N/Aw/ Skirt; 6 Term.
1996NissanSentraAutomatic——N/A—
1996NissanSentra———N/A—
1995INFINITIG20———N/A—
1995INFINITIG20———N/AGray
1995INFINITIJ30———N/A—
1995INFINITIQ45———N/A—
1995MercuryVillager———N/A6 Term.
1995MercuryVillager———N/A—
1995MercuryVillager—3.0LV6N/A—
1995Nissan200SX———N/AOE No. 25230-C9962, 72; 6 Term.
1995Nissan200SXAutomatic——N/A—
1995Nissan240SX———N/A—
1995Nissan300ZX———N/A—
1995NissanAltima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanAltima———N/AGray
1995NissanAltima———N/A7 Term.
1995NissanMaxima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanMaximaAutomatic——N/A—
1995NissanMaxima———N/A—
1995NissanPathfinder———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanPathfinder———N/A—
1995NissanPathfinder———N/AGray
1995NissanPickup———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanPickup———N/AGray
1995NissanQuest———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanSentra———N/Aw/ Skirt; 6 Term.
1995NissanSentra———N/A—
1994INFINITIG20———N/A—
1994INFINITIG20———N/AGray
1994INFINITIJ30———N/A—
1994INFINITIQ45———N/A—
1994MercuryVillager———N/A6 Term.
1994MercuryVillager———N/A—
1994MercuryVillager—3.0LV6N/A—
1994Nissan240SX———N/A—
1994Nissan240SX———N/ABrown
1994Nissan300ZX———N/A—
1994NissanAltima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanAltima———N/A—
1994NissanAltima———N/A7 Term.
1994NissanD21———N/A—
1994NissanMaximaAutomatic——N/A—
1994NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1994NissanMaxima———N/AFits vehicles from February 1994.
1994NissanMaxima———N/A—
1994NissanPathfinder———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanQuest———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanSentra———N/Aw/ Skirt; 6 Term.
1994NissanSentra———N/AGray
1993INFINITIG20———N/AGray
1993INFINITIJ30———N/A—
1993INFINITIQ45———N/A6 Blade Term.
1993INFINITIQ45———N/A—
1993MercuryVillager———N/A6 Term.
1993MercuryVillager———N/A—
1993MercuryVillager—3.0LV6N/A—
1993Nissan240SX———N/A—
1993Nissan240SX———N/ABrown
1993Nissan300ZX———N/A—
1993NissanAltima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanAltima———N/A—
1993NissanAltima———N/A7 Term.
1993NissanD21———N/A—
1993NissanMaximaAutomatic——N/A—
1993NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1993NissanNX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanNX———N/AGray
1993NissanPathfinder———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanQuest———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanSentra———N/Aw/ Skirt; 6 Term.
1993NissanSentra———N/AGray
1992INFINITIG20———N/A—
1992INFINITIG20———N/AGray
1992INFINITIM30———N/A—
1992INFINITIQ45———N/A—
1992Nissan240SX———N/A—
1992Nissan240SX———N/ABrown
1992Nissan300ZX———N/A—
1992NissanD21———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1992NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1992NissanNX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1992NissanNX———N/AGray
1992NissanPathfinder———N/A—
1992NissanSentra———N/Aw/ Skirt; 6 Term.
1992NissanSentra———N/AGray
1991INFINITIG20———N/A6 Term.
1991INFINITIG20———N/AGray
1991INFINITIM30———N/A—
1991INFINITIQ45———N/A—
1991Nissan240SX———N/A—
1991Nissan240SX———N/ABrown
1991Nissan300ZX———N/A—
1991NissanD21———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1991NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1991NissanNX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1991NissanNX———N/AGray
1991NissanPathfinder———N/A—
1991NissanSentra———N/Aw/ Skirt; 6 Term.
1991NissanSentra———N/AGray
1990INFINITIM30———N/A—
1990INFINITIQ45———N/A—
1990Nissan240SX—2.4LL4N/AOE No. 25230-C9962, C9972
1990Nissan240SX———N/A—
1990Nissan300ZX———N/A6 Blade Term.
1990NissanD21—2.4LL4N/AOE No. 25230-C9962, C9972
1990NissanD21—3.0LV6N/AOE No. 25230-C9962, C9972
1990NissanD21———N/A—
1990NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1990NissanPathfinder—3.0LV6N/AOE No. 25230-C9962, C9972
1990NissanPathfinder———N/A—
1990NissanPulsar NX—1.6LL4N/AOE No. 25230-C9962, C9972
1990NissanPulsar NX———N/A6 Blade Term.
1990NissanSentra—1.6LL4N/AOE No. 25230-C9962, C9972
1990NissanSentra———N/A—
1989Nissan240SX———N/A—
1989Nissan300ZX———N/A—
1989Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1989NissanD21———N/A—
1989NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1989NissanPathfinder———N/A—
1989NissanPulsar NX———N/A6 Blade Term.
1989NissanSentra———N/A—
1988Nissan200SX———N/A—
1988Nissan300ZX———N/A—
1988Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1988NissanD21———N/A—
1988NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1988NissanMaxima———N/A—
1988NissanPathfinder———N/A—
1988NissanPulsar NX———N/A6 Blade Term.
1988NissanSentra———N/A—
1987Nissan200SX———N/A—
1987Nissan300ZX———N/A—
1987Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1987NissanD21———N/A—
1987NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1987NissanMaxima———N/A—
1987NissanPathfinder———N/A—
1987NissanPulsar NX———N/A6 Blade Term.
1987NissanSentra———N/A—
1986Nissan200SX———N/A—
1986Nissan300ZX———N/A—
1986Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1986Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1986NissanD21———N/A—
1986NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1986NissanMaxima———N/A—
1986NissanPulsar NX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1986NissanSentra———N/A—
1985Nissan200SX———N/A—
1985Nissan300ZX———N/A—
1985Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1985Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1985NissanMaxima———N/AAutomatic temperature control is needed for proper installation.
1985NissanMaxima———N/A—
1985NissanPulsar NX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1985NissanSentra———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984Nissan200SX———N/A—
1984Nissan300ZX———N/A—
1984Nissan300ZX———N/AAutomatic temperature control is needed for proper installation.
1984Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984NissanMaxima———N/Aw/ Auto. Temp Control; From 7/84
1984NissanPulsar NX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984NissanSentra———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983Nissan280ZX———N/A—
1983Nissan280ZX—2.8LL6N/Aw/ Auto. Temp Control; From 7/83
1983Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanMaxima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanPulsar———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanPulsar NX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanSentra———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan210———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan280ZX———N/A—
1982Nissan310———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982NissanMaxima———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982NissanSentra———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan210———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan280ZX———N/A6 Term.
1981Nissan310———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan510———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan810———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan210———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan280ZX———N/A6 Term.
1980Nissan310———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan510———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan720———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan810———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan210———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan280ZX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan310———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan510———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan810———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan510———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan810———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1977Nissan200SX———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1977Nissan810———N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
Directly replaces or cross-references 18 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Davico Mfg — 19415Four Seasons — 35844Rostra Powertrain Controls — 60-0091Standard Ignition — RY-911R118115-593025-012956-1654203-0099252300B0101711286AR351AR364F3XY14N089DJR9MT0586R3064RAA1277