DriveMaster Two-Speed: 999921

Order Part

Horton Service # 999921 Horton OEM # 989921

This product can be used as a replacement part for:Terex 31390, Terex 23906

Replacement Options

DM Advantage Two-Speed Reman

799311-2 - 2.56" Fan Pilot

DM Advantage On/Off

799311 - 2.56" Fan Pilot

Item	Description	Qty
1	JOURNAL BRACKET	1
2*	SHEAVE BEARINGS	2
3	SHEAVE	1
4*	BEARING NUT	1
5	AIR CHAMBER CAP	1
6*	O-RING SEAL	1
9*	FAN MOUNTED FRICTION DISC (FMFD)	1
17*	BUTTON HEAD SCREWS	8
18*	AIR CHAMBER SEAL	1
20*	FACE SEAL	1
22*	BEARING RETAINING RING	1
23*	AIR CARTRIDGE ASSEMBLY	1
24*	AIR CARTRIDGE RETAINING RING	1
27*	STUDS	6
28*	FRICTION LINER	1
44	BEARING SPACERS	1
50*	CLUTCH PACK - SPRING HOUSING/PISTON	1
53*	SOCKET FLAT HEAD SCREWS	4
54	MAGNET PLATES	2
56*	CURVED MAGNETS	4

	Item 1	Item 3	BEARING KIT	FMFD KIT	POLARFORCE KIT	SEAL KIT	STUD KIT
Service # 999921 OEM # 989921	17762	18182	995548	2S-DP-CP	2S-DP-CP	994346	995513
Service # 999921 OEM # 989921	On Terex applications, a fan blade change and 993293 Solenoid Valve may be required when retrofitting from electric. Repair / Replace

On Terex applications, a fan blade change and 993293 Solenoid Valve may be required when retrofitting from electric.