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General Pump T991

How can I tell if I have a left handed or right handed shaft?

Name Part No. Description Quantity Price Order
General Pump T991

Product Brochure
APU-3203 *Model T991
*Interpump Model W99
*Max. GPM 3.5
*Max. PSI 1500
*RPM 1450
*Shaft Size 24mm
*Inlet Port =1/2" F
*Outlet Port=3/8" F
Replaces T9961 (same pump)
Weight 19 lbs
$380.95
General Pump
Product Brochure
APU-3803-LH *Model T991
*Left Handed Shaft
*Interpump Model W99
*Max. GPM 3.5
*Max. PSI 1500
*RPM 1450
*Shaft Size 24mm
*Inlet Port =1/2" F
*Outlet Port=3/8" F
Weight 19 lbs
$380.95

General Pump T991 Repair Kits and Parts

We stock the most common General Pump repair kits and parts. If part needed is not listed with price please call for availability.


General Pump T991 Pump Breakdown Diagram
General Pump T991 Pump Parts List
General Pump T991 Pump Repair Kits

General Pump T991 Repair Kits

Name Part No. Description Quantity Price Order
Repair Kit General Pump APU-4401 *Kit 1 Valve assembly $42.56
Repair Kit General Pump APU-4404 *Kit 4 Valve plugs $71.90
Repair Kit General Pump APU-4406 *Kit 6 Plunger screws and o-rings $17.64
Repair Kit General Pump APU-4421 *Kit 20 Intermediate rings $19.94
Repair Kit General Pump APU-4422 *Kit 21 Male adapters $8.40
Repair Kit General Pump APU-4423 *Kit 22 Packing retainers $14.73
Repair Kit General Pump APU-4424 *Kit 23 Crosshead seals $17.36
Repair Kit General Pump APU-4428 *Kit 27 Plunger Packing $22.90

General Pump T991 Repair Parts


Item # Part No. GP Part No. Description Quantity Price Order
1 50.1200.22 Manifold, Aluminum(T911) CALL
1 APU-6149 50.1207.41 Manifold, Brass $409.68
2 APU-6422 99.3175.00 Screw $2.10
3 APU-6366 96.7014.00 Washer $1.00
4 APU-6437 90.3841.00 O-Ring $0.50
5 36.2003.66 Seat, Valve CALL
6 APU-6014 36.2001.76 Plate, Valve $2.49
7 94.7376.00 Spring CALL
8 APU-6015 36.2002.51 Guide, Valve $2.10
9 APU-6438 90.3847.00 O-Ring, 797x.103 $0.90
10 APU-6403 98.2220.00 Cap, M24x2x16 $14.00
11 36.7032.01 Assembly, Valve CALL
12 APU-6267 90.2620.00 Packings(TT9351,TT9441) $8.00
12 APU-6280 90.2703.00 Packing $8.94
13 APU-6191 52.2166.70 Ring, Intermediate (TT9351,TT9441) $12.00
13 APU-6159 50.2166.70 Ring, Intermediate $9.05
14 APU-6173 51.1000.51 Ring, Head(TT9351,TT9441) $1.60
14 APU-6147 50.1000.51 Ring, Head $2.10
15 APU-6190 52.0805.70 Retainer, Packing(TT9351,TT9441) $12.00
15 APU-6146 50.0805.70 Retainer, Packing $5.80
16 APU-6340 90.3612.00 O-Ring, 1.239x.070 $1.00
17 APU-6253 90.1614.00 Seal, Oil $11.00
18 APU-6412 99.1807.00 Screw, M6x10 $1.00
19 APU-6150 50.1500.74 Cover, Crankcase $6.90
20 APU-6157 50.2116.51 Spacer $6.66
21 APU-6319 90.4097.00 O-Ring, 2.187x.139 $1.90
22 APU-6347 91.8329.00 Bearing, Ball $31.08
23 APU-6138 50.0104.22 Crankcase $208.44
24 APU-6399 98.2103.00 Oil Dip Stick $10.00
25 APU-6310 90.3920.00 O-Ring $2.50
26 APU-6151 50.1600.22 Cover $99.95
27 APU-6413 99.1837.00 Screw, M6x14 $1.80
28 APU-6439 90.3585.00 O-Ring, .426x.070 $1.00
29 APU-6387 97.5968.00 Indicator, Oil $13.00
30 APU-6394 98.2041.00 Cap, 1/4-BSPP $10.00
31 50.0205.35 Crankshaft(TT9351) CALL
31 50.0201.35 Crankshaft(T9971,TT9441) CALL
31 50.0219.35 Crankshaft(T9951) CALL
31 APU-6139 50.0218.35 Crankshaft(T991,TT911) $177.00
32 APU-6389 97.7330.00 Pin, Wrist $5.80
33 64.0048.00 Key CALL
34 APU-6142 50.0303.01 Connecting Rod(T9971) $122.58
34 APU-6140 50.0300.01 Rod, Connecting $31.95
34 APU-6141 50.0300.01 Rod, Connecting $56.22
36 APU-6362 96.6939.00 Washer, M6.4x10x.7 $1.00
37 APU-6416 99.1927.00 Screw, Mx35 $1.60
38 APU-6189 52.0500.56 Plunger Guide(TT9351,TT9441) $48.95
38 APU-6145 50.0501.56 Plunger Guide $41.95
39 APU-6369 96.7070.00 Washer(TT9351,TT9441) $1.00
39 APU-6383 96.7286.00 Washer, M14x28x.5 $1.40
40 APU-6188 52.0400.09 Piston (15mm)(TT9351,TT9441) $42.06
40 APU-6143 50.0404.09 Piston (20mm) $47.95
41 APU-6442 90.5022.00 Backup-Ring(TT9351,TT9441) $2.00
41 APU-6454 90.5067.00 Ring, Back-up, .433x.551x.055 $1.00
42 APU-6365 96.7008.00 Washer(TT9351,TT9441) $1.50
42 APU-6373 96.7280.00 Washer, M14x18.5x.5 $1.25
43 APU-6110 47.2195.66 Screw, Piston $8.55
44 APU-6156 50.2115.51 Spacer $7.95
45 APU-6256 90.1634.00 Seal, Oil $9.00
46 APU-6154 50.2000.74 Feet, Pump $8.00
46 APU-6155 50.2000.74 Feet, Pump $6.00
47 APU-6367 96.7016.00 Washer, M8.4 $1.00
48 APU-6419 99.3037.00 Screw, M8x16 $1.00
49 APU-6398 98.2100.00 Cap, 3/8-BSPP $8.50
50 APU-6401 98.2176.00 Cap, 1/2-BSPP $8.50
51 APU-6376 96.7514.00 Washer, M21.5x27x1.5 $1.90
52 APU-6384 96.7380.00 Washer, M17.5x23x1.5 $1.00
53 90.2617.00 Seal, Low Press,(TT9351,TT9441) CALL
53 APU-6278 90.2698.00 Seal, Low Press, 20mm $12.00
54 APU-6441 90.3572.00 O-Ring $1.00
55 APU-6268 90.2622.00 Restop Ring $5.35


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