Hayden 2559 Engine Cooling Fan Clutch

Hayden 2559 Fan Clutch Overview

The Hayden 2559 is a standard-duty thermal engine cooling fan clutch built for import truck and van applications that need consistent fan engagement. With an aluminum body, non-electronic design, and OE-style flange mounting, it supports proper cooling fan operation in vehicles such as the Mitsubishi Mighty Max, Dodge Ram 50, and Toyota Van.

Hayden Fan Clutch 2559 is a direct-fit cooling component for select 1979-1996 import applications, including Mitsubishi Mighty Max and Dodge Ram 50 fitments. It is a thermal, standard-duty replacement that meets or exceeds OEM requirements for the listed applications.

Key Features

• Thermal, standard-duty engine cooling fan clutch
• Aluminum construction with raw aluminum finish
• Non-electronic design for mechanical fan control
• Flange mounting with 4-bolt pattern and M6 x 1.0 hole thread
• 5.85 in. maximum clutch diameter and 4.8 in. fan bolt circle
• Meets or exceeds OEM specifications for the listed applications
• Performance rated for standard cooling system service

Detailed Description

The Hayden 2559 fan clutch is engineered for thermal fan control in standard-duty cooling systems. Its 5.85-inch clutch diameter, 2.28-inch mount diameter, and 2.69-inch overall height support a compact OE-style layout, while the 0.88-inch pilot depth and 0.63-inch pilot diameter help maintain proper fitment at the fan hub. This part number is commonly referenced for import cooling repairs and service work on Mitsubishi Mighty Max, Dodge Ram 50, Dodge Power Ram 50, Dodge D50, Mitsubishi Van, and Toyota Van applications. Hayden 2559 is a practical replacement when the original clutch no longer engages the fan correctly or when cooling performance has become inconsistent.

This part cross-references Four Seasons 36917 and Gates 22086 for the same application.

What It Helps Fix

• Engine temperatures that rise at idle or in slow traffic
• Cooling fan engagement that feels weak or inconsistent
• Noisy or worn fan clutch operation
• Reduced airflow through the radiator and engine bay
• Cooling system performance loss on listed Mitsubishi, Dodge, and Toyota applications

Installation Notes and Tips

Verify the fan bolt circle, mounting flange style, and pilot dimensions before installation. This Hayden 2559 uses a standard rotation and a 4-bolt flange mount, so the replacement should match the original fan clutch configuration on the vehicle. Mounting hardware is not included. Confirm clearance around the radiator, shroud, and fan blades during installation, and inspect the fan assembly for wear before reassembly.

Quality Assurance

Hayden lists this fan clutch as new, performance rated, and built to meet or exceed OEM requirements for the specified applications. The aluminum construction and thermal standard-duty design support dependable cooling-system service in the listed fitments.