Rieken's Racing: Horstman HDC-4 Clutch Parts

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New Drum

Factory Blueprinted
Clutch Springs

Horstman HDC-4 Dry Clutch
for Yamaha KT100S
The HDC-4 3" design clutch model is now old technology
since the release of the HDC-5 2-1/2" designs.
Spare parts will be available as demand dictates.
Click here for owner's manual.

HDC-4 PARTS

Part#	Ref#	Description	List	Sell
H322300	1	Spacer .145" (use with 10t #219 / 11t #215 drums)	3.94	3.15
H323800	1	Spacer .145" (use with 11t#219 / 9t#35 / 12t #215 drums)	3.94	3.15
H325900	1	Spacer .145" (use with 12t#219 / 10t#35 / 13t#215 drums)	3.94	3.15
H333301	2	10t #219 aluminum drum	72.39	54.29
H333302	2	11t #219 aluminum drum	65.80	49.35
H333303	2	12t #219 aluminum drum	65.80	49.35
H333320	2	15t #219 aluminum drum	65.80	49.35
H333304	2	9t #35 aluminum drum	65.80	49.35
H333305	2	10t #35 aluminum drum	65.80	49.35
H333307	2	11t #219 steel drum	71.13	53.35
H330151	2B	HDC Aluminum Drum with bolts	36.06	27.05
H330152	2B	HDC Steel Drum with bolts	37.49	28.12
H330134	2A	Sprocket, 9t #35	36.05	28.84
H330135	2A	Sprocket, 10t #35	37.49	29.99
H330136	2A	Sprocket, 15t #35	40.38	32.30
H330137	2A	Sprocket, 10t #219	43.26	34.61
H330138	2A	Sprocket, 11t #219	36.05	28.84
H330139	2A	Sprocket, 12t #219	40.38	32.30
H330140	2A	Sprocket, 13t #219	41.83	33.46
H330141	2A	Sprocket, 15t #219	43.26	34.61
H330147		Screw, 10-31 x ¼" flat head	0.44	0.35
H330400	3	Bearing (10t #219 & 11t #215)	15.33	12.26
H300300	3	Bushing (9t #35/11t #219/12t #215)	6.73	5.38
H300400	3	Bearing (10t#35/12t #219/13t #215)	10.08	8.06
H333355	4	Drive Hub & backing plate	152.14	114.11
H333356	4	Drive Hub only	47.65	35.74
H333357		Backing Plate only	NLA	NLA
H971031	5	Friction Disc	41.79	37.61
H333328	6	Pressure Plate Fits HDC 2 & 3. Use this instead of #H333359	92.70	69.53
H330026	7	Lever Support	71.15	53.36
H330027	8	Dowell Pin	0.80	0.64
H330043	9	T-Slot Lever 10.5g	11.29	9.03
H326600	10	Coned Washer	5.51	4.41
H326700	11	Nut 1-1/8" LH	8.52	6.82
H703600	12	Starter Nut	22.82	17.12
H330031	13	Spring Adjuster	4.14	3.31
H114000	13	Adjusting Screws Use with new style pressure plate	1.24	0.99
H334700	13	Spring Retainers Use with new style pressure plate	1.23	0.98
H313000	14	Spring, .091" wire (standard)	4.82	3.86
H328200	14	Spring, .085" wire (optional)	5.07	4.06
H514200	14	Spring, .072" wire (optional)	3.96	3.17
H309300		Woodruff key	2.38	1.90

NEW HORSTMAN HDC Ultra-Light Steel Drum HIGH QUALITY
Features:
1 Piece style for better precision... Made from billet alloy... Heat treated... Cryogenically treated for improved life... Light-Weight (strength of steel/ weight of aluminum)
Includes Graphite* bushing and spacer.
Retro-fits HDC 1, 2, 3 and 4 clutches.

Part#	Description	List	Sell
H330122	Ultralight Steel Drum 10t #219	56.22	42.17
H330123	Ultralight Steel Drum 11t #219*	56.22	42.17

Rieken's Racing offers expert rebuilding of all Horstman disc clutches. Please email for details.
Orders | Back to the Catalog | Rieken's Racing | HDC-3 Clutch
Rieken's Racing (319)373-2018 365 7th Ave., Marion, IA 52302