Item	Description	Qty
1	JOURNAL BRACKET	1
2	SHEAVE BEARING, includes bearing install tool	1
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	FAN MTG STUD	6
28	FRICTION LINER	1
44	BEARING SPACERS	1
50	CLUTCH PACK - SPRING HOUSING/PISTON	1
60	Magnet Assembly	*

	ITEM 1	ITEM 3	ITEM 44	A - SUPER QUICK KIT	BEARING KIT	FMFD KIT	POLARFORCE KIT	SEAL KIT	STUD KIT	SUPER KIT
Service # 99A8189 OEM # 98A8189	19761	19760	no spacer	2S-DP	995550	2S-DP-CP	2S-DP-CP	994346	995514	2S-DP
Service # 99A8189 OEM # 98A8189	DM Advantage Two Speed Upgrade for 991455 HT650 and Direct Drive Hub. The required 993379 Solenoid Valve is included with the 99A8189 for this upgrade. Reman version 79A8189 does not include Solenoid Valve. For On/Off Version see 99A9649. The 99A9649 is required for models with Secondary AC V-Belt option. Repair / Replace

Notes

DM Advantage Two Speed Upgrade for 991455 HT650 and Direct Drive Hub. The required 993379 Solenoid Valve is included with the 99A8189 for this upgrade. Reman version 79A8189 does not include Solenoid Valve. For On/Off Version see 99A9649. The 99A9649 is required for models with Secondary AC V-Belt option.