IMO (Circor) · Pumps & Valves
IMO ACE / ACG / ACF / ACD Triple Screw Pump
Spare parts for IMO (Circor / Colfax) ACE, ACG, ACF, ACD low-pressure triple-screw pumps – LO circulating, fuel, hydraulic, and transfer service.
How to use this list: Part numbers match OEM service manuals. Use the request button below to ask about availability and pricing. Include the part number, quantity, and delivery port.
IMO SPARE PARTS KIT CODING SYSTEM 11
| Part Number | Description |
|---|---|
| G011 | G011 – Rotor Set (CCW rotation only) |
| G012 | G012 – Rotor Set (CW rotation, standard) |
| G015 | G015 – Rebuilding Set (includes G012) |
| G050 | G050 – Shaft Seal (complete) |
| G051 | G051 – Sealing Element |
| G052 | G052 – Mechanical Seal |
| G053 | G053 – Minor Kit (= G050 + G057) |
| G054 | G054 – Major Kit (= G012 + G053 + valve spring 615) |
| G057 | G057 – Joint Kit (gaskets + O-rings + sealing washers) |
| G070 | G070 – Valve Element (bypass valve complete) |
| G082 | G082 – SealGuard Kit |
ACD 025 NUMBERS 8
| Part Number | Description |
|---|---|
| 062885 | G012 Rotor Set – ACD 025 Normal lead (pump form N6) |
| 062893 | G012 Rotor Set – ACD 025 Low lead (pump form L6) |
| 190848 | G050 Complete Shaft Seal – ACD version xVxx |
| 190810 | G050 Complete Shaft Seal – ACD version xTxx |
| –calc: 190848+183681– | G053 Minor Kit – ACD (= G050 + G057) |
| 183681 | G057 Joint Kit – ACD 025 |
| 018523 | 615 – Valve Spring (bypass valve) |
| –order components– | G054 Major Kit – ACD (= G012 + G050 + G057 + 615) |
ACE / ACG SERIES NUMBERS 21
| Part Number | Description |
|---|---|
| 189964 | G050 Shaft Seal – ACE/ACG xVxx version |
| 190501 | G053 Minor Kit – ACE/ACG xVxx (= G050 189964 + G057) |
| 190503 | G053 Minor Kit – ACE/ACG (variant) |
| 191599 | G053 Minor Kit – ACG 060 N7 (specific model) |
| 190482 | Rotor Set G012 (ACE/ACG – specify model for correct variant) |
| 190619 | Rotor Set G012 (ACE/ACG variant 2) |
| 190487 | Rotor Set G012 (ACE/ACG variant 3) |
| 191653 | Shaft Seal G050 variant |
| 190783 | Shaft Seal G050 variant 2 |
| 191247 | Minor Kit G053 variant |
| 179523 | Part (6-digit – verify application) |
| 191700 | Part (6-digit – verify application) |
| 191248 | Part (6-digit – verify application) |
| 191243 | Part (6-digit – verify application) |
| 179507 | Part (6-digit – verify application) |
| 192958 | Part (6-digit – verify application) |
| 192553 | Part (6-digit – verify application) |
| 192786 | Part (6-digit – verify application) |
| 187567 | Part (6-digit – verify application) |
| 191245 | Part (6-digit – verify application) |
| 191251 | Part (6-digit – verify application) |
IMO AFTERMARKET / OEM CROSS-REFERENCE PART NUMBERS 15
| Part Number | Description |
|---|---|
| PP047BM | Bearing (replaces IMO OEM) |
| PP047BD | Bearing (alt. size – replaces IMO OEM) |
| PP056SB1-134 | O-Ring (replaces IMO OEM) |
| PP056TB1-011 | O-Ring (alt. – replaces IMO OEM) |
| PP028KA-200 | Retaining Ring (replaces IMO OEM) |
| PP028KA-175 | Retaining Ring (alt.) |
| PP028KA-118 | Retaining Ring (alt.) |
| PP028KA-156 | Retaining Ring (alt.) |
| PP028KA-78 | Retaining Ring (alt.) |
| PP046JKN | Seal (shaft seal – replaces IMO OEM) |
| 3242/350RA | Minor Repair Kit (replaces IMO OEM kit) |
| 3242/253RA | Minor Repair Kit (alt.) |
| 3242/250RA | Minor Repair Kit (alt.) |
| 3242/351RA | Minor Repair Kit (alt.) |
| 3242/252RA | Minor Repair Kit (alt.) |
IMO COMPONENT POSITION REFERENCE 16
| Part Number | Description |
|---|---|
| Pos. 1020 | Power Rotor (drive spindle) – CW rotation |
| Pos. 201/202 | Idler Rotors (qty 2 per pump) |
| Pos. 351 | Balancing Bush |
| Pos. 122 | Ball Bearing |
| Pos. 113 | Key (shaft) |
| Pos. 125 | Secondary Seal (O-ring behind shaft seal) |
| Pos. 401 | Pump Body |
| Pos. 418 | Gasket (suction flange) |
| Pos. 423 | Gasket (discharge flange) |
| Pos. 506 | O-Ring (front cover) |
| Pos. 509 | Shaft Seal complete |
| Pos. 556 | Gasket (rear cover) |
| Pos. 614 | Valve Piston (bypass valve) |
| Pos. 615 / p/n 018523 | Valve Spring (bypass valve) |
| Pos. 605 | O-Ring (valve – lower) |
| Pos. 602 | Sealing Washer (bypass valve cover) |