17
HYDRO-GEAR HYDROSTATIC PUMP
Model 991085, 086, 087
Item Ariens p/n Hydro-Gear p/n Qty. Description
1 71413 1 Kit, Main Housing RH
7 21543819 51190 16 HFHCS 1/4-20 x 1.25
10 51804 2 O-Ring, .111 .103 x .424
11 08613700 9005110-5600 1 Plug, 9/16-18 (Metal)
NS 21543771 50928 10.1 oz Sealant
NS N/A 70.3 oz 20W50 Oil
22 21543839 51448 1 Plate, Bypass
23 52114 1 Filter, Oil
26 52162 2 Seal, Plug 1.25 x .25
27 52137 3 HFHCS, 3/8-16 x 1.5
30 21543845 51626 1 Seal, Lip .375 x .75 x .25
31 08622500 51628 1 Ring, Retention .375 External
32 52136 1 Rod, Bypass
33 21543846 51627 1 Ring, Retention .750 Internal
34 51910 1 Arm, Bypass
35 21543848 51630 1 Ring, Retention .375 Ext
40 21543783 51048 1 Trunnion, Swashplate
45 08611200 44130 1 Washer, .34 x .88 x .06
46 21543854 51812 1 TWHCS 5/16-24 x 1.00
52 52155 1 Shaft, Input
53 21543738 50315 1 Bearing, Ball 17 x 40 x 12 Open 6203
54 2000022 1 Ring, Ret Wire .561 ID
55 21543773 50951 1 Washer, 1.23 x 1.56 x .04
56 21543816 51161 1 Seal, Lip 17 x 40 x 7
57 21543741 50329 1 Ring, Ret 1.59 Internal
60 51462 1 Bearing, Thrust
65 08609100 50551 1 Bearing, Thrust Ball 30 x 52 x 13
70 21543708 44371 1 Washer, .63 x 1.0 x .05
71 21543704 44145 1 Ring, Retaining .625
72 52342 1 Gear, 13T, Steel
73 52150 1 Shaft, Motor
74 21543788 51083 1 Washer, .72 x 1.16 x .04
80 21543724 50132 2 Washer, .5 x 1.0 x .03
81 52343 1 Gear, 46T
83 21543793 51083 1 Jack Shaft
90 08616500 50859 1 Ring, Ret 2.06 Internal
91 52108 1 Gear, 54T
92 52161 1 Spacer, .75 x 1.0 x .257
93 44121 1 Bearing, Ball .75 x 40 x 12
95 08614000 50771 1 Bearing, Ball 1.0 x 52 x 15 Open 6205M
96 08614300 50772 1 Seal, Lip 25 x 52 x 10 TC (Gray)
99 08621100 50863 1 Nut, Hex Lock 3/4-16
103 52027 1 Clip, Retaining
105 21543759 50752 3 HFHCS 1/4-20 x .75
106 52257 1 Guard, Filter, RH
111 71393 1 Fitting, Str 9/16-18 SAE .5 Barb
130 52157 2 Tube, Connecting
131 08611500 50273 1 Assembly, Gerotor Tang x 1.15 x .39
132 52250 1 O-Ring, -137, 0.103 x 2.05
133 52688 1 Cover, Charge Pump
134 21543759 50752 1 HFHCS 1/4-20 x .75
140 52527 1 Spacer, .320 x 1.00 x .179
142 21543843 51616 1 SHCS 5/16-24 x 1 Patch
146 21543871 51950 1 Washer, .343 x 1.5 x .062
147 51833 1 Spring, Extension Rtn - 34 lbs
200 71410 1 Kit, Seal ( * - parts included in this kit)
203 71411 1 Kit, Charge Pump (includes items 131, 132, 133 & 134)
210 71442 1 Kit, Input Shaft (includes items 52, 53 and 54)
211 71597 1 Kit, Rtn CCW (includes items 44, 46 and 145)
212 71569 1 Kit, Axle Shaft (includes items 94 & 109)
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