Hypro
Hypro 9303P-HM4C Poly Centrifugal Pump, Hydraulic Motor Driven, for Ag Sprayers
Hypro 9303P-HM4C Poly Centrifugal Pump, Hydraulic Motor Driven, for Ag Sprayers
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The 9303P-HM4C is a Hypro 9303P series hydraulic motor-driven centrifugal pump — polypropylene casing and impeller with an HM4C hydraulic motor, rated at 82 GPM and 84 PSI.
Repair Kits for This Pump
| Part | Part No. |
|---|---|
| Wet-end seal kit | 3430-0445 (Hypro factory kit) or 3430-0332, which our shop also uses on the 9303P. Silicon carbide option: 3430-0593 |
| Hydraulic motor seal kit | Newer motors (built about 2018 on, motor body 0150-2540C, no front cartridge): 3430-0881 Older motors (front seal cartridge, motor body 0150-2500C): 3430-0748 |
| Impeller | 0402-9100P polypropylene |
| Port adapter kit (HM2C/HM4C) | 3430-0187 |
Most rebuilds take the wet-end seal kit (fluid leaking at the casing or dripping from the slinger) and, if oil is weeping between the motor and pump, the motor seal kit. Not sure which motor you have? Send a photo of the motor end and the nameplate to sales@spraycenter.com or call (509) 838-2209 and we'll match the kit before you order. The detailed service parts list below follows Hypro's parts breakdown for the original motor; motor-side parts differ on newer motors.
Specifications
| Max flow | 82 GPM (310.4 l/min) |
|---|---|
| Max pressure | 84 PSI (5.8 bar) |
| Max hydraulic flow | 7 GPM (26.5 l/min) |
| Inlet | 1-1/2" NPT |
| Outlet | 1-1/4" NPT |
| Hydraulic ports | 1/2" NPT inlet, 3/4" NPT outlet |
| Housing / impeller | Polypropylene |
| Dry weight | 21 lbs |
Service Parts
| Ref. | Part No. | Description | Qty |
|---|---|---|---|
| 1 | 2210-0087 | Hex Head Cap Screw | 4 |
| 2 | 2210-0016 | Hex Head Cap Screw (Base Only) | 2 |
| 3 | 2270-0041 | Washer | 6 |
| 5 | 0700-9000P | Pump Casing | 1 |
| 6 | 2250-0052 | Impeller Nut | 1 |
| 7 | 2250-0051 | Jam Nut | 1 |
| 8 | 1700-0097 | Gasket (Viton) | 1 |
| 9 | 2270-0057 | Washer | 1 |
| 10 | 0402-9100P | Impeller | 1 |
| 11 | 1700-0100 | Rubber Gasket | 1 |
| 12 | 3430-0593 | Mechanical Seal (Silicon Carbide) - optional | 1 |
| 13 | 1721-0083 | O-ring | 1 |
| 14 | 0750-9300P | Cover | 1 |
| 15 | 2210-0088 | Screw | 1 |
| 16 | 0750-9006C | Intermediate Flange | 1 |
| 17 | 1510-0063 | Base Plate | 1 |
| 18 | 2250-0008 | Hex Nut | 2 |
| 19 | 1410-0056 | Slinger Ring | 1 |
| 20 | 1810-0014 | Snap Ring | 1 |
| 21 | 1820-0013 | Retaining Ring | 1 |
| 22 | 2000-0010 | Ball Bearing | 1 |
| 23 | 1410-0131 | Cartridge, Front | 1 |
| 24 | 1720-0268 | O-ring | 2 |
| 26 | 1410-0130 | Seal Spacer | 1 |
| 27 | 2029-0014 | Thrust Bearing Assembly | 1 |
| 29 | 3430-0850 | Shaft (HM2C/HM4C) | 1 |
| 30 | 1810-0026 | Snap Ring | 1 |
| 31 | 1610-0032 | Roll Pin (HM2C/HM4C) | 1 |
| 32 | 0150-2500C | Motor Body (includes needle bearing) | 1 |
| 33 | 2210-0021 | Hex Head Cap Screw | 4 |
| 34 | 1720-0110 | O-ring | 2 |
| 35 | 1600-0045 | Dowel Pin (HM2C/HM4C) | 1 |
| 36 | 1600-0042 | Dowel Pin (HM2C/HM4C) | 1 |
| 37 | 3900-0025 | Gerotor (HM4C) | 1 |
| 38 | 0703-2500C1 | Gerotor Housing (HM4C) 5/16 in wide | 1 |
| 39 | 0254-2500C2 | Motor End Plate (includes needle bearing) | 1 |
| 40 | 2270-0039 | Washer | 4 |
| 41 | 2220-0045 | Cap Screw (HM2C/HM4C) | 4 |
| 42 | 1720-0108 | O-ring | 1 |
| 43 | 3360-0021A | Pressure Port Adapter (includes o-ring) | 1 |
| 44 | 3320-0051A | Tank Port Adapter (includes o-ring) | 1 |
| 46 | 3220-0029 | Bypass Adjusting Screw | 1 |
| 47 | 1700-0047 | Gasket | 1 |
| 48 | 2270-0027 | Washer | 1 |
| 49 | 2250-0038 | Lock Nut | 1 |
Repair Kits
| Kit No. | Description |
|---|---|
| 3430-0445 | 9303P repair parts kit — o-ring, rubber gasket, mechanical seal, gasket, washer |
| 3430-0748 | 9303P parts kit — ball bearing, motor shaft seal, thread seal gasket, washer, cartridge and housing o-rings |
| 3430-0187 | Adapter kit — HM2C / HM4C models |
Parts and specifications per Hypro manual L-1547 (Series 9303 Centrifugal Pumps).
