Buy F17-1030-001 - Genuine Horton Fan Clutch Assembly - wisentpartscenter.com

Description

Genuine Horton 98A9659 Fan Clutch Assembly is a DM Advantage On/Off pneumatic fan drive used to control engine-cooling fan operation. This design is spring-engaged and air-disengaged: with the clutch engaged, the fan turns with the drive to provide maximum radiator and charge-air-cooler airflow; when cooling demand drops, control air releases the clutch so the fan no longer consumes full engine power.

Key Functions
- Engages the cooling fan when full airflow is required.
- Uses air pressure to disengage the clutch when maximum cooling is unnecessary.
- Transfers engine power through a heavy-duty 12-rib pulley and 5-inch fan-pilot configuration.

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

Purpose of the Part

The 98A9659 controls when the engine fan receives full mechanical drive. When cooling is needed, spring force engages the clutch and drives the fan. When the cooling system no longer needs maximum airflow, approximately 90 PSI or more of control air disengages the clutch, reducing unnecessary fan load on the engine.

Issue Symptoms / When to Replace

A worn fan clutch can cause overheating under load if it will not engage, or excessive fan noise and horsepower draw if it remains engaged continuously. Air leakage, delayed disengagement, bearing noise, clutch slippage, or excessive play at the fan can also indicate a problem. Before replacing the drive, verify that the clutch is receiving adequate control air and that the fan-control solenoid and surrounding air lines are working correctly.

Brand Information

Horton was founded in 1951 and began applying its clutch technology to heavy-vehicle cooling systems in the 1960s. Horton fan drives later became original equipment with manufacturers including Peterbilt and Kenworth, and the company continues to specialize in fan drives, fans, and thermal-management systems for heavy-duty equipment. The DM Advantage On/Off family is Horton’s spring-engaged, air-disengaged pneumatic fan-drive design for high-heat truck applications.

Installation Notes

Confirm the 5.00-inch fan pilot before installation and verify that the clutch receives at least 90 PSI control air for proper disengagement. Horton specifically warns that some BorgWarner applications use a 2.56-inch fan pilot and require a fan-blade change when converted to this configuration.

How to Identify an OEM Part

A genuine unit can be identified by the factory Horton identification showing OEM number 98A9659.

Why Buy 98A9659 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.

Shop with confidence

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.