Product Description
KB799494-2X - DRIVEMASTER TWO-SPEED FAN CLUTCH (MACK ASET AI)
PART NUMBER(S):
Fleet Products: KB799494-2X (Remanufactured) | OE: 99A9494-2, 79A9494-2, 99494-2
DESCRIPTION:
Model: Drivemaster Two-Speed Fan Clutch
Vehicles: Mack with ASET AI Engine
• Back Pulley Diameter: 5.23"
• Belt Configuration: 12PK
• Pulley Diameter: 5.04"
• Fan Blade Stud Length: 1.05"
• Stud Thread Size: .312-18 UNC
Applications:
Engineered for Mack trucks equipped with ASET AI engines. This remanufactured two-speed Drivemaster fan clutch provides high-output thermal regulation, improved fuel efficiency, and consistent torque delivery under extreme loads—ideal for long-haul and vocational uptime-critical operations.
CROSS-REFERENCE(S):
20883819, 21192240, 21210845, 21596045, 22113077, 24-465CK, 2S-DP, 2S-DP-CP, 3443-994942, 3443-998494, 3912-79A94942, 40MH4103M, 40MH413AM, 40MH440M, 6514-060-1, 65140601, 799494, 79A5494-2, 79A5644-2, 79A9494, 79A9494-2, 79A9494-2RMAN, 79A9954, 85115602, 85123189, 85139329, 989347, 989473, 989494, 989954, 99347, 994346, 99473, 99494-2, 995550, 999347, 999473, 99954-2, 999542, 999954, 99A9494, 99A9494-2, ABP N20 99494, ABP N20 994942, ABPN2099494, ABPN20994942, D&W 130-184-0410, F17-1000-9494, FC7994942, FLT99494, FLT994942, HOR79A94942, K799494-2, KIT MASTERS 99494, KM N20 99494, KM N20 994942, KMI99494, KMI994942, KMN2099494, KMN20994942, Kit Masters 98A9494, R799494-2, RX79A9494RMAN, RX99A9494RMAN, ZBH79A94942, f17-1000-9494, f1710009494
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Verify the mounting and fan dimensions before installation
✔ Compatible with Mack ASET AI engine configurations
✔ Ensure correct 12PK belt configuration and pulley alignment for optimal function
✔ Confirm two-speed fan clutch compatibility before installation
DM 2-Speed Repair Kits:
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com .
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