Horton Fan Clutch Assembly Horton 99A9621 For Heavy Duty Diesel Engine
Heavy-Duty Engine Fan Clutch Assembly
Primary Part Number: 99A9621
Replaces / Cross-References: ABPN2099621, 98A9621
Component Type: Engine Cooling Fan Clutch
Condition: Used (Liquidating Old Inventory)
Donor Vehicle: 2019 Freightliner Cascadia (Running Salvage Unit, ~500k Miles)
Description: Restore proper engine cooling and optimize your fuel economy with this heavy-duty replacement fan clutch assembly.
The fan clutch is a critical cooling component designed to engage the engine cooling fan only when operating temperatures require it, saving horsepower and reducing fuel consumption when cooling isn't needed. When internal seals fail or the clutch locks up, it can cause poor fuel mileage, engine overheating, or AC underperformance. This specific unit was carefully removed from a running 2019 truck with roughly 500,000 miles that is currently being scrapped out for salvage. We are currently liquidating old inventory, making this an excellent opportunity to replace a failing or locked-up fan clutch at a fraction of standard replacement costs.
Engine Fitment: Designed specifically for heavy-duty engine platforms. Compatible with:
For Detroit Diesel: DD13 and DD16 engines (Often compatible with DD15 setups, but please verify part numbers).
Vehicle Fitment & Compatibility: Compatible with modern Class 8 heavy-duty commercial trucks running the engine platforms listed above, heavily utilized on:
Fits Freightliner: Cascadia, New Cascadia, Cascadia Evolution, 114SD, and 122SD chassis.
Fits Western Star: 4900, 49X, 57X, and 5700XE chassis.
Fitment Note: Fan clutch mounting hubs, pulley configurations, and electrical/air connections can vary based on your exact engine block and cooling package. You MUST verify your original part numbers against 99A9621, ABPN2099621, or 98A9621 before ordering to guarantee a perfect mechanical fit!
Shipping Details: Standard shipping is completely free on this item! Expedited and overnight shipping options are also available upon customer request. If you need this rushed to your shop to get your rig out of the bay and minimize downtime, simply reach out to Iron Eagle Truck Center before or immediately after purchasing, and we can arrange overnight shipping (customer is responsible for the upgraded expedited shipping costs).
Ships from Wisconsin — Wisconsin only shipping location for this seller.