# MotoRad 5231KT Engine Coolant Thermostat Kit for 1984-2004 Infiniti QX4 ### Specifications Bolt Hole Quantity: 3 Bolts Included: No Color: Silver Gasket or Seal included: No Material: Steel, stainless steel, copper ### Features - Offer precise pressure control - Ensure the proper fit - Made of high quality materials - Easy installation ### Product Details Engine Coolant Thermostat Kit by MotoRad®. Temperature: 170F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality product used in their vehicle. MotoRad offers a full line of thermostats to replace original equipment thermostats. These parts are manufactured with high-grade duel bridge stainless steel construction and they meet or exceed all original equipment manufacturer requirements. MotoRad also offers standard thermostats in many alternate temperatures. Brand: MotoRad Part Number: 5231KT UPC: 055644687322 ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1997 Infiniti QX4 1998 Infiniti QX4 1999 Infiniti QX4 2000 Infiniti QX4 2001 Infiniti QX4 1987 Nissan 200SX 1988 Nissan 200SX 1984 Nissan 300ZX 1985 Nissan 300ZX 1986 Nissan 300ZX 1987 Nissan 300ZX 1988 Nissan 300ZX 1989 Nissan 300ZX 1999 Nissan Frontier 2000 Nissan Frontier 2001 Nissan Frontier 2002 Nissan Frontier 2003 Nissan Frontier 2004 Nissan Frontier 1987 Nissan Pathfinder 1988 Nissan Pathfinder 1989 Nissan Pathfinder 1990 Nissan Pathfinder 1991 Nissan Pathfinder 1992 Nissan Pathfinder 1993 Nissan Pathfinder 1994 Nissan Pathfinder 1995 Nissan Pathfinder 1996 Nissan Pathfinder 1997 Nissan Pathfinder 1998 Nissan Pathfinder 1999 Nissan Pathfinder 2000 Nissan Pathfinder 1990 Nissan Pick Up 1991 Nissan Pick Up 1992 Nissan Pick Up 1993 Nissan Pick Up 1994 Nissan Pick Up 1995 Nissan Pick Up 2000 Nissan Xterra 2001 Nissan Xterra 2002 Nissan Xterra 2003 Nissan Xterra 2004 Nissan Xterra ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase. **What part number is this?** The listed part number is 5231KT. **Is this product designed for direct replacement?** Yes. This product is intended to match the compatible vehicle applications listed in the fitment table. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering. ### Common Searches - Engine Coolant Thermostat Kit for Infiniti QX4 - 5231KT fitment - MotoRad Engine Coolant Thermostat Kit - 1997 Infiniti QX4 Engine Coolant Thermostat Kit ## Details - **Price:** 57.51 CAD - **Vendor:** MotoRad - **Type:** Engine Coolant Thermostat Kit - **Tags:** 1984-1989 Nissan 300ZX, 1987-1988 Nissan 200SX, 1987-2000 Nissan Pathfinder, 1990-1995 Nissan Pick Up, 1997-2001 Infiniti QX4, 1999-2004 Nissan Frontier, 2000-2004 Nissan Xterra, 5231KT, Automotive, Engine Coolant Thermostat Kit, MotoRad ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 57.51 CAD | In stock | ## Images - MotoRad 5231KT Engine Coolant Thermostat Kit for 1984-2004 Infiniti QX4 --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-5231kt-engine-coolant-thermostat-kit) > Updated: 2026-08-17