Hypro
Hypro 9303C-HM4C-U Cast Iron Centrifugal Pump, Hydraulic Driven, Universal Flange Ports, 115 GPM
Hypro 9303C-HM4C-U Cast Iron Centrifugal Pump, Hydraulic Driven, Universal Flange Ports, 115 GPM
Regular price
$1,204.93 USD
Regular price
$2,008.21 USD
Sale price
$1,204.93 USD
Unit price
per
Shipping calculated at checkout.
Couldn't load pickup availability
Questions on fitment? Need a different size or quantity?
Talk to Shayne, Brett or Jordan: real people who work on sprayers. Meet the crew
(509) 838-2209
Mon–Fri 9 AM–5 PM Pacific · Spokane, WA
Request a quote or ask about this part by email
🧑🔧
Ask Dusty
Parts Expert
Get an instant answer on “Hypro 9303C-HM4C-U Cast Iron Centrifugal Pump, Hydraulic Driven, Universal Flange Ports, 115 GPM” — fitment, alternatives, or what else you need
The 9303C-HM4C-U is a Hypro 9303 series centrifugal pump — cast iron, hydraulic motor driven (HM4C), universal flange ports, rated at 115 GPM and 93 PSI with universal flange ports.
Repair Kits for This Pump
| Part | Part No. |
|---|---|
| Wet-end seal kit | 3430-0332 (Viton/ceramic seal, O-ring, gasket). Silicon carbide upgrade: 3430-0589 |
| 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 | 0401-9100P nylon (standard). Poly option: 0402-9100P |
| 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 | 115 GPM (435.3 l/min) |
|---|---|
| Max pressure | 93 PSI (6.4 bar) |
| Max hydraulic flow | 7 GPM (26.5 l/min) |
| Max hydraulic pressure | 3000 PSI (206.8 bar) |
| Inlet/outlet ports | 220 X 200 Universal Flange |
| Hydraulic inlet port | 1/2" NPT |
| Hydraulic outlet port | 3/4" NPT |
| Dry weight | 26 lbs (11.8 kg) |
| Mounting bolts | 2X 3/8" or M10 |
| Housing material | Cast iron |
| Impeller material | Nylon (standard) |
| Seal | Viton/Ceramic |
Service Parts
| Ref. | Part No. | Description | Qty |
|---|---|---|---|
| 1B | 2406-0001 | Vent Plug | 4 |
| 2A | 0153-9000C | Pump Casing (Universal Flange Model C-U) | 1 |
| 3 | 3430-0825 | Impeller Nut | 1 |
| 4 | 0401-9100P | Impeller (Nylon Std. 9303C) | 1 |
| 5 | 1720-0083 | O-ring | 1 |
| 6 | 1700-0100 | Gasket | 1 |
| 8 | 0750-9300C | Mounting Flange | 1 |
| 9 | 2210-0020 | Hex Head Cap Screw | 4 |
| 10 | 1410-0056 | Slinger Ring | 1 |
| 11 | 1810-0014 | Snap Ring | 1 |
| 12 | 1820-0013 | Retaining Ring | 1 |
| 13 | 2000-0010 | Ball Bearing | 1 |
| 14 | 1410-0131 | Cartridge, Front | 1 |
| 15 | 1720-0268 | O-ring | 2 |
| 16 | 3430-0748 | Lip Seal | 1 |
| 17 | 1410-0130 | Seal Spacer | 1 |
| 18 | 2029-0014 | Thrust Bearing Assembly | 1 |
| 19 | 3430-0850 | Shaft (HM2C/HM4C) | 1 |
| 20 | 0150-2500C | Motor Body (includes needle bearing) | 1 |
| 21 | 2210-0005 | Hex Head Cap Screw | 4 |
| 22 | 1720-0110 | O-ring | 2 |
| 23 | 1600-0045 | Dowel Pin (HM2C / HM4C) | 1 |
| 24 | 1600-0042 | Dowel Pin (HM2C / HM4C) | 1 |
| 25 | 3900-0025 | Gerotor (HM4C) | 1 |
| 26 | 0703-2500C1 | Gerotor Housing (HM4C Models) 5/16" wide | 1 |
| 27 | 0254-2500C2 | Motor End Plate (includes needle bearing) | 1 |
| 28 | 2270-0039 | Washer | 4 |
| 29 | 2220-0045 | Cap Screw (HM2C / HM4C Models) | 4 |
| 30 | 1720-0108 | O-ring | 1 |
| 31 | 3360-0021A | Pressure Port Adapter (includes o-ring) | 1 |
| 33 | 3320-0051A | Tank Port Adapter (includes o-ring) | 1 |
| 34 | 3220-0029 | Bypass Adjusting Screw | 1 |
| 35 | 1700-0047 | Gasket | 1 |
| 36 | 2270-0027 | Washer | 1 |
| 37 | 2250-0038 | Lock Nut | 1 |
| 38 | 1610-0032 | Roll Pin (HM2C / HM4C) | 1 |
| 39 | 1810-0026 | Snap Ring | 1 |
| 40 | 1610-0012 | Woodruff Key (9303C) | 1 |
| 2500-0084C | Hydraulic Motor (HM4C Models), complete | 1 |
Repair Kits
| Kit No. | Description |
|---|---|
| 3430-0332 | Repair Parts Kit - one mechanical seal (ref 7), one o-ring (ref 5), one rubber gasket (ref 6) |
| 3430-0589 | Silicon Carbide Seal Kit - mechanical seal (ref 7) and o-ring (ref 5) |
| 3430-0748 | Parts Kit - ball bearing (ref 13), motor shaft seal (ref 16), thread seal gasket (ref 35), two cartridge o-rings (ref 15), washer (ref 36), two motor housing o-rings (ref 22), port adapter o-rings (ref 30 and 32) |
| 3430-0187 | Adapter Kit (HM2 and HM4 models only) - orifice sizes 3373-0020 (#1), 3373-0021 (#2), 3373-0022 (#3), adapter o-ring 1720-0108, orifice o-ring 1720-0105 |
Parts and specifications per Hypro manual L-1547 Rev. B.
