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DriveMaster: 999491

Horton Service # 999491 Horton OEM # 989491 Old Service # 999247

This product can be used as a replacement part for:Mack 40MH437M, Mack 40MH414M, Mack 20862232

Clutch Type: DriveMaster

Replacement Options

DriveMaster On/Off Reman

DM Advantage Two-Speed

DM Advantage Two-Speed Reman

Repair Kits

Repair Kit Options

Part Components

View Full List of Components

Standard Parts List

	Item	Description	Qty	Comments
	1	JOURNAL BRACKET	1
	2*	SHEAVE BEARINGS	1 OR 2
	3	SHEAVE	1
	4*	BEARING NUT	1
	5	AIR CHAMBER CAP	1
	6*	O-RING SEAL	1
	9*	FAN MOUNTING DISC/STUDS	1
	17*	BUTTON HEAD SCREWS	8
	18*	AIR CHAMBER SEAL	1
	20*	FACE SEAL	1
	22*	RETAINING RING	1
	23*	AIR CARTRIDGE ASSEMBLY	1
	24*	RETAINING RING	1
	28*	FRICTION LINER	1
	44	BEARING SPACER	1
	50*	CLUTCH PACK - SPRING HOUSING/PISTON	1
	55*	CAGE NUT (USED FOR REPAIRS ONLY)	1

	Item 1	Item 3	Item 44	CLUTCH PACK KIT	DMA CONVERSION BEARING KIT (DM Only)	DMA CONVERSION SUPER KIT(DM Only)	DMA TWO-SPEED CONVERSION SUPER KIT	FRICTION DISC KIT	FRICTION LINER KIT	POLARFORCE KIT	SEAL KIT
Service # 999491 OEM # 989491	17547	17546	12246	1S-DP-CP	995574	1S-DP	do not convert	994348	994349	do not convert	994346
Service # 999491 OEM # 989491	Repair / Replace