The Jayrad JFC041 fan clutch sits on the front of the 4D56 in your Challenger PB or Triton MN or ML and controls how hard the fan pulls air through the radiator. The flange mount lines up with a 24mm pilot and a 177mm fan bolt pattern so it drops into standard 4020 style cooling layouts. The 73mm overall height keeps the fan in the shroud sweet spot when you tackle steep climbs or soft sand.

The body runs a 192mm outside diameter with deep alloy fins that dump heat fast when the clutch is working hard in 40°C days. The flange screw type mount matches factory hardware so the kit stays solid when the front end cops corrugations week after week. The centred 24mm pilot keeps the fan true which helps bearings last longer in real-world touring loads. It is smart buy gear for anyone keeping a 4D56 cooling system in shape.

• Flange screw type fan clutch for Mitsubishi 4D56 engines
• Suits Challenger PB and Triton MN or ML models as referenced
• 24mm pilot hole to match standard water pump nose
• 177mm fan blade bolt circle for OE-style fans
• 73mm overall height to suit tight engine bays
• 192mm outside diameter finned body for heat dissipation
• Alloy construction with radial fins to manage clutch temperature
• Direct bolt-up style using flange mounting holes
• Helps maintain stable radiator airflow under load
• Suitable replacement part for ageing viscous fan clutches

Q: Do I need to change the radiator fan when fitting this Jayrad JFC041 fan clutch?

No, this fan clutch is made to work with fan blades that use a 177mm bolt circle. Most factory Mitsubishi 4D56 fans in Challenger PB and Triton MN or ML share this pattern. Always measure the bolt circle on your existing fan before bolting it up. If the fan does not match 177mm, it should not be used with this clutch.

Q: How can I confirm this fan clutch will fit my 4D56 engine before pulling everything apart?

Measure three key points on your current clutch and compare. Check the pilot on the water pump nose is 24mm. Confirm the bolt circle on the fan is 177mm. Finally confirm the overall clutch height is close to 73mm. If those numbers line up this JFC041 unit is the correct style.

Q: Will this fan clutch change the position of the fan in the shroud?

The clutch height of 73mm is intended to match standard 4D56 layouts. That keeps the fan in roughly the same place within the shroud opening. A big change in height can cause noise or reduced cooling. If your old unit measures very differently, check part numbers before installing.

Q: Can I install this fan clutch at home with basic tools?

Yes, if you are comfortable working on front-of-engine accessories and have access to standard metric spanners and torque tools. The flange design uses straightforward bolts instead of pressed fittings. Always follow a workshop manual for torque specs and cooling system bleed steps. If unsure, a mechanic should handle the job.

• Suits Mitsubishi Challenger PB models fitted with 4D56 diesel engines
• Suits Mitsubishi Triton MN models fitted with 4D56 diesel engines
• Suits Mitsubishi Triton ML models fitted with 4D56 diesel engines
• Verify 73mm overall height and 192mm outside diameter against existing clutch before install
• Professional installation recommended using standard workshop procedures and torque settings