This Jayrad fan clutch slots onto the water pump of 4.2L Nissan Patrol GQ and GU models and takes over fan drive so the fan only works hard when the engine is hot and backs off when temps drop to save noise and drag. The flange mount lines up with the hub pattern on 1980–2003 Patrols so you can tackle tours or beach runs without chasing odd bolt spacings. The clutch body runs an outside diameter of 149 mm with a 58.8 mm overall height so it sits in the sweet spot between the radiator and fan shroud on stock setups. The 31.8 mm pilot hole keeps the fan centred while the 135 mm fan bolt circle matches the factory blade pattern for straight swap fitment. You get a bit of peace of mind out bush because the dimensions mirror standard 4.2L cooling hardware and keep the airflow where it should be.

• Suits Nissan Patrol GQ/GU 4.2L engines
• Viscous fan clutch for engine cooling
• Flange screw type mounting style
• Overall clutch height of 58.8 mm
• Pilot hole diameter of 31.8 mm
• Fan blade bolt circle of 135 mm
• Outside housing diameter of 149 mm
• Direct replacement for factory-style unit
• Finned alloy body assists heat dissipation
• Ideal for touring and towing Patrol setups

Q: How can I confirm this fan clutch matches my existing one?

Match the measurements and mounting style to your original clutch. Check that your current unit uses a flange screw type mount, then measure the pilot hole, bolt circle, and overall height. You want a pilot hole of about 31.8 mm and a fan bolt circle close to 135 mm. The outside diameter should be around 149 mm so it clears your shroud with similar spacing.

Q: Do I need to replace the fan blade at the same time?

Not necessarily, as long as the existing fan blade matches the 135 mm bolt circle. Inspect the fan for cracks, damaged blades, or elongated bolt holes before refitting. A sound fan with clean mounting faces will sit better on the new clutch. If the blade is damaged or warped, replace it to avoid vibration and extra load on the new unit.

Q: Can this fan clutch be used with aftermarket radiators or shrouds?

It can be used if the aftermarket components keep factory-style clearances. The key is maintaining enough space between the fan tips and the shroud while keeping the fan centred on the radiator core. After fitting an aftermarket radiator or shroud, slowly rotate the fan by hand to check for interference. If the fan contacts the shroud, adjust the setup before running the engine.

Q: What symptoms suggest my old fan clutch needs replacing?

Common signs include the engine running hotter than usual at low speeds and the fan either roaring constantly or barely engaging. You might notice temperature rising in traffic but normal on the highway, or visible wobble at the fan hub. A new clutch with the correct Patrol dimensions can restore consistent airflow across the radiator under load.

Suits Nissan Patrol GQ and GU models with 4.2L engines from approximately 1980 to 2003. Fan clutch mounts to the water pump via a flange screw type connection. Fan blade attaches to a bolt circle of 135 mm. Pilot hole diameter of 31.8 mm must match the fan hub location. Always confirm measurements and existing part number on your vehicle before installation by a suitably qualified person.