1874596C91 - Genuine International Fan Clutch Pulley - 1 - wisentpartscenter.com

Description

Genuine International 1874596C91 Fan Clutch Pulley is a Horton DM Advantage pulley assembly used in the engine cooling fan-drive system. The pulley is driven by the engine belt and provides the mounting and drive point for the Horton fan clutch, allowing engine power to be transferred to the cooling fan when the clutch engages.

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The 1874596C91 is the mechanical connection between the engine's belt drive and the fan clutch. As the engine turns the belt, this pulley drives the Horton fan-clutch assembly so the cooling fan can provide airflow through the radiator when additional engine cooling is required.

Issue Symptoms / When to Replace

A worn or damaged pulley can cause belt noise, pulley wobble, vibration around the fan drive, uneven belt wear, or problems keeping the belt properly aligned. Bearing or fan-clutch problems can create similar symptoms, so the pulley, fan drive, belt, and surrounding mounting components should be inspected together before replacement.

Brand Information

Horton was founded in 1951 and specializes in engine-cooling equipment for commercial vehicles and heavy-duty machinery. The company began applying its clutch technology to vehicle cooling systems in the 1960s, and Horton fan drives later became original equipment with major truck manufacturers including Navistar. The DM Advantage family is one of Horton's heavy-duty fan-drive systems used in truck cooling applications.

Installation Notes

Disconnect the negative battery cable to prevent accidental engine cranking, relieve belt tension, and properly support the fan-clutch assembly before removing the pulley.

How to Identify an OEM Part

Verify the Horton manufacturer identification and 99A4996 part number or the corresponding International 1874596C91 identification.

Why Buy 99A4996 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

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Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.