HomeTransmission > RelaysStandard Ignition RY-91 Automatic Transmission Torque Converter Clutch Relay
Part #: RY-91

Standard Ignition RY-91 Automatic Transmission Torque Converter Clutch Relay

⚙️ 356 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Nissan, INFINITI, and Mercury, Tsuru, FX35, FX45, Q45, Frontier, G20, I35, QX4, Villager, Maxima, Pathfinder, Sentra, Xterra, I30, Altima, Quest, J30, 200SX, 240SX, Pickup, 300ZX, Axxess, D21, NX, M30, Stanza, Micra, Pulsar NX, Multi, Van, 720, 280ZX, Pulsar, 210, 310, 510, 810, 620, 280Z, B210, F10, 710, 610, and 260Z
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Reliable Automatic Transmission Torque Converter Clutch Relay

The Standard Ignition RY-91 Automatic Transmission Torque Converter Clutch Relay is designed for precise control of the torque converter clutch in select INFINITI, Mercury, and Nissan vehicles. This relay ensures smooth transmission operation and helps maintain optimal vehicle performance.

  • Compatible with various Nissan models including 200SX, 240SX, 300ZX, Altima, Maxima, and Pathfinder
  • Fits INFINITI models such as FX35, FX45, G20, I30, I35, J30, M30, Q45, QX4, and FX35
  • Supports Mercury models including 210, 310, 510, 720, 810, and Villager
  • Part number RY-91 for accurate identification and replacement
  • Designed for automatic transmission systems requiring torque converter clutch relay functionality

Product Details and Compatibility

The RY-91 relay from Standard Ignition is engineered to meet the specific requirements of automatic transmission systems in a range of Nissan, INFINITI, and Mercury vehicles. It plays a critical role in engaging and disengaging the torque converter clutch, which improves fuel efficiency and reduces transmission heat. This relay is compatible with Nissan models such as the Sentra, Pulsar, Frontier, Xterra, and D21 pickup, as well as INFINITI luxury models like the FX35 and QX4. Mercury vehicles including the Villager and various series from the 200s to 800s are also supported. Using the correct relay ensures reliable transmission performance and helps prevent drivability issues.

Common Applications and Problem Resolution

  • Prevents torque converter clutch slipping and overheating
  • Resolves transmission shifting delays or harsh engagement
  • Eliminates erratic torque converter clutch operation
  • Addresses transmission warning lights related to clutch relay faults
  • Improves overall transmission responsiveness and fuel economy

Installation Notes and Tips

Installation of the Standard Ignition RY-91 relay should be performed by a qualified technician familiar with automatic transmission systems. Ensure the vehicle’s battery is disconnected before replacing the relay to avoid electrical shorts. Verify the part number RY-91 matches the original relay to confirm compatibility. After installation, test the transmission operation under various driving conditions to confirm proper torque converter clutch engagement.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The RY-91 relay undergoes rigorous quality control testing to ensure consistent operation within the transmission system. Warranty coverage details should be confirmed at the time of purchase, typically including protection against defects in materials and workmanship.

BrandStandard Ignition
Part NumberRY-91
Amperage Rating10
Connector GenderFemale
Connector ShapeRectangular
Continuous DutyNo
FunctionsRelay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 356 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2007INFINITIFX35N/A
2007INFINITIFX45N/A
2006INFINITIFX35N/A
2006INFINITIFX45N/A
2006INFINITIQ45N/A
2005INFINITIFX35N/A
2005INFINITIFX45N/A
2005INFINITIQ45N/A
2005NissanFrontierN/A
2004INFINITIFX35N/A
2004INFINITIFX45N/A
2004INFINITIQ45N/A
2003INFINITIFX35N/A
2003INFINITIFX45N/A
2003INFINITIQ45N/A
2002INFINITIG20N/A
2002INFINITIG20AutomaticN/A
2002INFINITII35N/A
2002INFINITII353.5LV6N/A
2002INFINITIQ45N/A
2002INFINITIQX4N/A
2002MercuryVillagerN/A6 Term.
2002MercuryVillagerN/A6 Blade Term.
2002MercuryVillagerN/A
2002NissanFrontierN/A
2002NissanFrontierAutomatic2.4LL4N/A
2002NissanFrontierAutomatic3.3LV6N/A
2002NissanMaximaN/A
2002NissanMaximaAutomaticN/A
2002NissanPathfinderN/AJideco; Gray
2002NissanPathfinderN/ABrown
2002NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2002NissanSentraAutomatic2.5LL4N/ANiles; Jideco
2002NissanSentraN/A
2002NissanXterraN/A
2002NissanXterraAutomatic3.3LV6N/A
2001INFINITIG20N/A
2001INFINITIG20AutomaticN/A
2001INFINITII30N/A
2001INFINITII30N/AJideco; Gray
2001INFINITII30N/AJideco
2001INFINITIQ45N/ATo 1/01
2001INFINITIQ45N/A
2001INFINITIQX4N/A
2001MercuryVillagerN/A6 Term.
2001MercuryVillager3.3LV6N/A
2001MercuryVillagerN/A
2001NissanAltimaAutomaticN/A
2001NissanFrontierAutomaticN/A
2001NissanFrontierN/A
2001NissanMaximaN/A
2001NissanMaximaAutomaticN/A
2001NissanPathfinderN/ANiles; Jideco; Gray
2001NissanSentraAutomatic2.0LL4N/ANiles; Jideco
2001NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2001NissanXterraN/A
2001NissanXterraAutomatic3.3LV6N/A
2000INFINITIG20N/A
2000INFINITIG20AutomaticN/A
2000INFINITII30N/A
2000INFINITII30N/AJideco; Gray
2000INFINITII30N/AJideco
2000INFINITIQ45N/A
2000INFINITIQX4N/A
2000MercuryVillagerN/A6 Term.
2000MercuryVillagerN/A
2000MercuryVillager3.3LV6N/A
2000NissanAltimaAutomaticN/A
2000NissanFrontierAutomaticN/A
2000NissanFrontierN/A
2000NissanMaximaN/A
2000NissanMaximaAutomaticN/A
2000NissanPathfinderN/A
2000NissanPathfinderN/ABrown
2000NissanSentra2.0LL4N/A
2000NissanSentraN/AFrom 1/00
2000NissanSentraAutomatic2.0LL4N/ANiles; Jideco
2000NissanSentraAutomatic1.8LL4N/ANiles; Jideco
2000NissanXterraN/A
2000NissanXterraAutomatic3.3LV6N/A
1999INFINITIG20N/A
1999INFINITIG20AutomaticN/A
1999INFINITII30N/A
1999INFINITII30AutomaticN/A
1999INFINITIQ45N/A6 Term.
1999INFINITIQ45N/A
1999INFINITIQX4N/A
1999MercuryVillagerN/A6 Term.
1999MercuryVillagerN/A
1999MercuryVillager3.3LV6N/A
1999NissanAltimaAutomaticN/A
1999NissanFrontierAutomaticN/A
1999NissanFrontierN/A
1999NissanMaximaAutomaticN/A
1999NissanMaximaN/A
1999NissanPathfinderN/A
1999NissanPathfinderN/ABrown
1999NissanQuestN/A
1998INFINITII30N/A
1998INFINITII30AutomaticN/A
1998INFINITIQ45N/A6 Term.
1998INFINITIQ45N/A
1998INFINITIQX4N/A
1998MercuryVillagerN/A6 Term.
1998MercuryVillager3.0LV6N/A
1998MercuryVillagerN/A
1998NissanAltimaAutomaticN/A
1998NissanFrontierAutomaticN/A
1998NissanFrontierN/A
1998NissanPathfinderN/A
1998NissanPathfinderN/ABrown
1997INFINITII30N/A
1997INFINITII30AutomaticN/A
1997INFINITIJ30N/A
1997INFINITIQ45N/A6 Term.
1997INFINITIQ45N/A
1997INFINITIQX4N/A
1997MercuryVillagerN/A6 Term.
1997MercuryVillagerN/A
1997MercuryVillager3.0LV6N/A
1997Nissan200SXN/AOE No. 25230-C9962, 72; 6 Term.
1997Nissan240SXN/AOE No. 25230-C9962, 72; 6 Term.
1997NissanAltimaN/AOE No. 25230-C9962, 72; 6 Term.
1997NissanMaximaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanPathfinderN/AOE No. 25230-C9962, 72; 6 Term.
1997NissanPathfinderN/ABrown
1997NissanPickupN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanQuestN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1997NissanSentraN/Aw/ Skirt; 6 Term.
1996INFINITIG20N/AGray
1996INFINITIG20N/A
1996INFINITII30N/A
1996INFINITII30AutomaticN/A
1996INFINITIJ30N/A
1996INFINITIQ45N/A6 Term.
1996INFINITIQ45N/A
1996MercuryVillagerN/A6 Term.
1996MercuryVillagerN/A
1996MercuryVillager3.0LV6N/A
1996Nissan200SXN/AOE No. 25230-C9962, 72; 6 Term.
1996Nissan200SXAutomaticN/A
1996Nissan240SXN/AOE No. 25230-C9962, 72; 6 Term.
1996Nissan300ZXN/A
1996NissanAltimaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanMaximaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanMaximaN/A
1996NissanPathfinderN/AOE No. 25230-C9962, 72; 6 Term.
1996NissanPathfinderN/ABrown
1996NissanPathfinderN/AGray
1996NissanPickupN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanQuestN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1996NissanSentraN/Aw/ Skirt; 6 Term.
1996NissanSentraAutomaticN/A
1996NissanSentraN/A
1995INFINITIG20N/A
1995INFINITIG20N/AGray
1995INFINITIJ30N/A
1995INFINITIQ45N/A
1995MercuryVillagerN/A6 Term.
1995MercuryVillagerN/A
1995MercuryVillager3.0LV6N/A
1995Nissan200SXN/AOE No. 25230-C9962, 72; 6 Term.
1995Nissan200SXAutomaticN/A
1995Nissan240SXN/A
1995Nissan300ZXN/A
1995NissanAltimaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanAltimaN/AGray
1995NissanAltimaN/A7 Term.
1995NissanMaximaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanMaximaAutomaticN/A
1995NissanMaximaN/A
1995NissanPathfinderN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanPathfinderN/A
1995NissanPathfinderN/AGray
1995NissanPickupN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanPickupN/AGray
1995NissanQuestN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1995NissanSentraN/Aw/ Skirt; 6 Term.
1995NissanSentraN/A
1994INFINITIG20N/A
1994INFINITIG20N/AGray
1994INFINITIJ30N/A
1994INFINITIQ45N/A
1994MercuryVillagerN/A6 Term.
1994MercuryVillagerN/A
1994MercuryVillager3.0LV6N/A
1994Nissan240SXN/A
1994Nissan240SXN/ABrown
1994Nissan300ZXN/A
1994NissanAltimaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanAltimaN/A
1994NissanAltimaN/A7 Term.
1994NissanD21N/A
1994NissanMaximaAutomaticN/A
1994NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1994NissanMaximaN/AFits vehicles from February 1994.
1994NissanMaximaN/A
1994NissanPathfinderN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanQuestN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1994NissanSentraN/Aw/ Skirt; 6 Term.
1994NissanSentraN/AGray
1993INFINITIG20N/AGray
1993INFINITIJ30N/A
1993INFINITIQ45N/A6 Blade Term.
1993INFINITIQ45N/A
1993MercuryVillagerN/A6 Term.
1993MercuryVillagerN/A
1993MercuryVillager3.0LV6N/A
1993Nissan240SXN/A
1993Nissan240SXN/ABrown
1993Nissan300ZXN/A
1993NissanAltimaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanAltimaN/A
1993NissanAltimaN/A7 Term.
1993NissanD21N/A
1993NissanMaximaAutomaticN/A
1993NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1993NissanNXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanNXN/AGray
1993NissanPathfinderN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanQuestN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1993NissanSentraN/Aw/ Skirt; 6 Term.
1993NissanSentraN/AGray
1992INFINITIG20N/A
1992INFINITIG20N/AGray
1992INFINITIM30N/A
1992INFINITIQ45N/A
1992Nissan240SXN/A
1992Nissan240SXN/ABrown
1992Nissan300ZXN/A
1992NissanD21N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1992NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1992NissanNXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1992NissanNXN/AGray
1992NissanPathfinderN/A
1992NissanSentraN/Aw/ Skirt; 6 Term.
1992NissanSentraN/AGray
1991INFINITIG20N/A6 Term.
1991INFINITIG20N/AGray
1991INFINITIM30N/A
1991INFINITIQ45N/A
1991Nissan240SXN/A
1991Nissan240SXN/ABrown
1991Nissan300ZXN/A
1991NissanD21N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1991NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1991NissanNXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1991NissanNXN/AGray
1991NissanPathfinderN/A
1991NissanSentraN/Aw/ Skirt; 6 Term.
1991NissanSentraN/AGray
1990INFINITIM30N/A
1990INFINITIQ45N/A
1990Nissan240SX2.4LL4N/AOE No. 25230-C9962, C9972
1990Nissan240SXN/A
1990Nissan300ZXN/A6 Blade Term.
1990NissanD212.4LL4N/AOE No. 25230-C9962, C9972
1990NissanD213.0LV6N/AOE No. 25230-C9962, C9972
1990NissanD21N/A
1990NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1990NissanPathfinder3.0LV6N/AOE No. 25230-C9962, C9972
1990NissanPathfinderN/A
1990NissanPulsar NX1.6LL4N/AOE No. 25230-C9962, C9972
1990NissanPulsar NXN/A6 Blade Term.
1990NissanSentra1.6LL4N/AOE No. 25230-C9962, C9972
1990NissanSentraN/A
1989Nissan240SXN/A
1989Nissan300ZXN/A
1989Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1989NissanD21N/A
1989NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1989NissanPathfinderN/A
1989NissanPulsar NXN/A6 Blade Term.
1989NissanSentraN/A
1988Nissan200SXN/A
1988Nissan300ZXN/A
1988Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1988NissanD21N/A
1988NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1988NissanMaximaN/A
1988NissanPathfinderN/A
1988NissanPulsar NXN/A6 Blade Term.
1988NissanSentraN/A
1987Nissan200SXN/A
1987Nissan300ZXN/A
1987Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1987NissanD21N/A
1987NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1987NissanMaximaN/A
1987NissanPathfinderN/A
1987NissanPulsar NXN/A6 Blade Term.
1987NissanSentraN/A
1986Nissan200SXN/A
1986Nissan300ZXN/A
1986Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1986Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1986NissanD21N/A
1986NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1986NissanMaximaN/A
1986NissanPulsar NXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1986NissanSentraN/A
1985Nissan200SXN/A
1985Nissan300ZXN/A
1985Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1985Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1985NissanMaximaN/AAutomatic temperature control is needed for proper installation.
1985NissanMaximaN/A
1985NissanPulsar NXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1985NissanSentraN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984Nissan200SXN/A
1984Nissan300ZXN/A
1984Nissan300ZXN/AAutomatic temperature control is needed for proper installation.
1984Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984NissanMaximaN/Aw/ Auto. Temp Control; From 7/84
1984NissanPulsar NXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1984NissanSentraN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983Nissan280ZXN/A
1983Nissan280ZX2.8LL6N/Aw/ Auto. Temp Control; From 7/83
1983Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanMaximaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanPulsarN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanPulsar NXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1983NissanSentraN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan210N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan280ZXN/A
1982Nissan310N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982NissanMaximaN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1982NissanSentraN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan210N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan280ZXN/A6 Term.
1981Nissan310N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan510N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1981Nissan810N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan210N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan280ZXN/A6 Term.
1980Nissan310N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan510N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan720N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1980Nissan810N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan210N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan280ZXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan310N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan510N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1979Nissan810N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan510N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1978Nissan810N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1977Nissan200SXN/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.
1977Nissan810N/AOE No. 25230-C9962, 72; Gray and White; 6 Blade Term.

* 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:

15-5930194151R1181203-009925-0129252300B0103584456-1654AR351AR364F3XY14N089DJR9MT0586R3064RAA1277

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