| Parameter | Specification |
|---|---|
| COGENG Part Number | 11708609 (Replaces OEM) |
| OEM Equivalent | Volvo 11708609 |
| Product Type | Hydraulic Pump |
| Application | Steering, Hoist, Brake systems |
| Compatible Models | Volvo A25E, Volvo A30E Articulated Haulers |
| Mounting Type | Direct bolt-on replacement |
| Parameter | Specification |
|---|---|
| Pump Type | Hydraulic gear pump (or piston pump) |
| Displacement | OEM-specified (A25E/A30E application) |
| Flow Rate (rated RPM) | OEM-specified L/min (GPM) |
| Maximum Operating Pressure | 250 - 300 bar (3,625 - 4,350 psi) |
| Continuous Pressure Rating | 200 - 250 bar (2,900 - 3,625 psi) |
| Rated Speed | OEM-specified RPM |
| Direction of Rotation | Clockwise (CW) / Counter-clockwise (CCW) |
| Mounting Flange | SAE / Volvo standard |
| Shaft Type | Splined / Keyed |
| Port Type | SAE flanged / Threaded |
| Weight | 15 - 35 kg (33 - 77 lbs) depending on pump type |
| Component | Material Specification |
|---|---|
| Housing | High-strength cast iron / Aluminum |
| Gears (gear pump) | Hardened steel |
| Piston assembly (piston pump) | Hardened steel |
| Shaft | Alloy steel |
| Seals | HNBR / FKM (Viton) |
| Bearings | Heavy-duty tapered roller / needle |
| Cover/Flange | Cast iron / Aluminum |
| Parameter | Specification |
|---|---|
| Recommended Fluids | Mineral oil, synthetic hydraulic fluids |
| Viscosity Grade | ISO VG 46 / ISO VG 68 |
| Operating Temperature Range | -20°C to +90°C (-4°F to +194°F) |
| Filtration Requirement | ISO 18/16/13 (10-15 micron absolute) |
| Parameter | Specification |
|---|---|
| Model | Volvo A25E Articulated Hauler |
| Engine | Volvo D9A (or equivalent) |
| Rated Payload | 24,000 kg / 25 tons |
| Hydraulic System | Steering + Hoist + Brake |
| Pump Location | PTO-mounted / Direct drive |
| Parameter | Specification |
|---|---|
| Model | Volvo A30E Articulated Hauler |
| Engine | Volvo D9A / D11 (or equivalent) |
| Rated Payload | 28,000 kg / 30 tons |
| Hydraulic System | Steering + Hoist + Brake |
| Pump Location | PTO-mounted / Direct drive |
| Function | Steering System | Hoist System | Brake System |
|---|---|---|---|
| Primary pump | Steering pump (integral) | Hoist pump (integral) | Brake pump (integral or separate) |
| Operating pressure | 140-180 bar | 200-250 bar | 100-150 bar |
| Flow requirement | High flow | Very high flow | Moderate flow |
Note: The OEM 11708609 pump is typically a multi-section (tandem) pump that combines steering, hoist, and brake functions into one integrated unit. Verify your pump configuration before ordering. Contact COGENG with your machine serial number for exact compatibility confirmation.
| Type | Description | Application |
|---|---|---|
| Single Section Pump | One hydraulic circuit | Steering only / auxiliary only |
| Tandem Pump (2-section) | Two pumps in one housing | Steering + Hoist or Brake |
| Triple Pump (3-section) | Three pumps in one housing | Steering + Hoist + Brake (many A25E/A30E configurations) |
| Section | Function | Flow | Pressure |
|---|---|---|---|
| Section 1 | Steering | Medium | 140-180 bar |
| Section 2 | Hoist / Dump | High | 200-250 bar |
| Section 3 | Brake / Cooling | Low | 100-150 bar |
⚠️ IMPORTANT: Confirm your machine's exact pump configuration (number of sections, port sizes, rotation) before ordering.
| Feature | Benefit |
|---|---|
| Precision-machined components | Optimal efficiency, minimal internal leakage |
| Hardened gears/pistons | Extended wear life |
| Heavy-duty bearings | Withstands continuous heavy loads |
| High-quality seals | Leak-proof operation (HNBR/FKM) |
| Balanced design | Quiet operation, reduced vibration |
| 100% factory tested | Every pump individually tested |
| Direct fit | Plug-and-play replacement for 11708609 |
| Test | Method | Acceptance Criteria |
|---|---|---|
| Flow test | Calibrated test stand | Meets OEM curve (±5%) |
| Pressure test | Pressure gauge | Meets OEM spec |
| Efficiency test (volumetric) | Flow @ pressure | ≥90% |
| Case drain test | Measure leakage | ≤OEM spec |
| Noise test | Sound meter | ≤OEM spec |
| Temperature test | Thermal imaging | ≤90°C operation |
| Pressure hold test | Static pressure | No drop |
| Cycle test | 1,000,000 cycles (sample) | No degradation |
✅ ISO 9001:2015 – Quality Management System
✅ ISO 14001 – Environmental Management
✅ RoHS Compliant
✅ REACH Compliant
| NO | Number | Name | Qty |
| VOE11708609 | Hydraulic Pump | 1 | |
| 1 | VOE935073 | Elbow Pipe Fitting | 1 |
| 2 | VOE973200 | Flange Screw | 2 |
| 3 | VOE977025 | O-Ring | 1 |
| 4 | VOE914529 | Retaining Ring | 1 |
| 5 | VOE11031509 | Coupling Sleeve | 1 |
| 6 | VOE993325 | O-Ring | 2 |
| 7 | VOE11123250 | Valve Sleeve | 1 |
| 8 | VOE11123251 | Valve | 1 |
| 9 | VOE11124087 | Plug | 1 |
| 10 | VOE935067 | Elbow Pipe Fitting | 1 |
| 11 | VOE990736 | • O-Ring | 1 |
| 12 | VOE932037 | • O-Ring | 1 |
| 13 | VOE956594 | Hex Screw | 2 |
| 14 | VOE11117311 | Check Valve | 1 |
| 15 | VOE11709715 | • O-Ring | 1 |
| 16 | VOE11015455 | Half Flange | 2 |
| 17 | VOE959249 | Hex Socket Head Screw | 2 |
| 18 | VOE959345 | Hex Socket Head Screw | 2 |
| 19 | VOE944708 | O-Ring | 1 |
| 20 | VOE11124189 | Suction Pipe | 1 |
| 21 | VOE4871469 | Vent Valve | 1 |
| 22 | VOE11034256 | • Protective Cap | 1 |
| 23 | VOE13933883 | Threaded Sleeve | 1 |
| 24 | VOE990736 | • O-Ring | 1 |
| 25 | VOE14211856 | • Sealing Ring | 1 |
| 26 | VOE935309 | Half Flange | 2 |
| 27 | VOE956616 | Socket Head Cap Screw | 4 |
| 28 | VOE13933925 | Elbow Pipe Fitting | 2 |
| 29 | VOE990736 | • O-Ring | 2 |
| 30 | VOE931209 | • O-Ring | 2 |
| 31 | VOE13933859 | T-?? (Fitting) | 1 |
| 32 | VOE990736 | • O-Ring | 2 |
| 33 | VOE11124088 | Valve Sleeve | 1 |
| 34 | VOE11123252 | Valve | 1 |
| 35 | VOE11123253 | Magnet | 1 |
| 36 | VOE11125311 | Bracket | 1 |
| 37 | VOE965177 | Flange Screw | 2 |
| 38 | VOE949278 | Flange Lock Nut | 2 |
| 39 | VOE935082 | Threaded Sleeve | 1 |
| 40 | VOE990736 | • O-Ring | 1 |
| 41 | VOE932037 | • O-Ring | 1 |
| 42 | SA8230-09790 | • Pin | 2 |
| 43 | •• Pin | 1 | |
| 44 | •• Locating Pin | 1 | |
| 45 | VOE14540778 | • Piston | 2 |
| 46 | VOE14600770 | • Plate | 2 |
| 47 | SA8230-09650 | • Plate | 2 |
| 48 | VOE14534044 | • O-Ring | 2 |
| 49 | VOE14535450 | • O-Ring | 1 |
| 50 | VOE14535451 | • O-Ring | 4 |
| 51 | VOE14533604 | • O-Ring | 16 |
| 52 | VOE14534029 | • O-Ring | 8 |
| 53 | VOE14533612 | • O-Ring | 4 |
| 54 | VOE14534028 | • O-Ring | 2 |
| 55 | VOE14535452 | • Seal | 1 |
| 56 | SA9566-10180 | • Support Ring | 2 |
| 57 | SA9566-20350 | • Support Ring | 2 |
| 58 | SA8230-25620 | • Nut | 2 |
| 59 | VOE979022 | • Hex Nut | 2 |
| 60 | SA8230-25980 | • Sealing Ring | 2 |
| 61 | SA8230-26430 | • Mounting Plate | 2 |
| 62 | SA7223-00660 | • Spring Pin | 4 |
| 63 | SA8230-25450 | • Eyebolt | 2 |
| 64 | SA8230-26780 | • Bolt | 2 |
| 65 | SA8230-09700 | • Bolt | 2 |
| 66 | SA8230-09070 | • Pivot | 1 |
| 67 | SA8230-09660 | • Adapter Plate | 1 |
| 68 | VOE14535425 | • Bearing | 2 |
| 69 | VOE14535447 | • Bearing | 2 |
| 70 | SA8230-14530 | • Locator | 4 |
| 71 | VOE14541865 | • Plate | 2 |
| 72 | VOE14535448 | • Bushing | 2 |
| 73 | SA8230-09710 | • Spring | 18 |
| 74 | VOE14555298 | Seal Kit | 1 |
Q1: Which Volvo articulated hauler models use the VOE11708609 hydraulic pump?
A: This hydraulic pump is designed for Volvo A25E and A30E articulated haulers requiring OEM part number VOE11708609 (also listed as 11708609). Please verify compatibility with your machine serial number before ordering.
Q2: Is this an OEM or aftermarket hydraulic pump?
A: It is a direct OEM replacement hydraulic pump, manufactured to meet or exceed original Volvo quality standards for performance, durability, and precise fit.
Q3: What is the function of this hydraulic pump on A25E/A30E haulers?
A: This pump supplies hydraulic flow for critical systems including steering, braking, suspension, hoist (dump body), and auxiliary hydraulic functions on Volvo articulated haulers.
Q4: What symptoms indicate I need to replace my hydraulic pump?
A: Common signs include weak or slow steering, reduced dumping/hoisting power, poor braking performance, unusual noises from the pump area, hydraulic system overheating, and low system pressure.
Contact COGENG
📞 Phone: +86-185-2913-1515 🌐 Instagram
📧 Email: hugo@cogeng.net 🌐 Facebook：Excavator Parts Selection and Replacement Community
💬 WhatsApp +86-185-2913-1515 Facebook: Excavator Wiring Harness
💬 WeChat: +86-185-7865-1106 Facebook: Excavator Wire Harness
🌐 Website: cogeng.net Facebook: Excavator SolenoidValve
#ExcavatorWiringHarness #ExcavatorThrottleMotor #ExcavatorSolenoidValve #ExcavatorSealKit
