Cat D8R Bulldozer Hydraulic Pump 139-4151 | 79.3 GPM Flow Capacity | 3,500 PSI Relief Valve
High-performance hydraulic piston pump designed specifically for Caterpillar D8R bulldozers, delivering reliable power and precise control for demanding construction applications.
| Product Name | Excavator Hydraulic Pump |
| Specification | D8R |
| Part Number | 139-4151 |
| Pump Flow Capacity | 79.3 gallons per minute (300 liters per minute) |
| Pump Type | Piston |
| Relief Valve Pressure | 3,500 psi |
| Configuration | Available in Tandem |
This hydraulic pump is compatible with most 20-ton excavators including DAEWOO, DOOSAN, HYUNDAI, VOLVO, SAMSUNG, Kobelco, Kato, and similar models.
| Position | Part Number | Parts Name |
|---|---|---|
| 1 | 183-8388 Y | VALVE GP-PUMP CONTROL (PRESSURE, FLOW COMPENSATOR)(STEERING) |
| 2 | 183-8403 Y | PUMP GP-CHARGE (STEERING) |
| 3 | 183-8414 Y | HEAD GP-PUMP |
| 4 | 183-8430 Y | ACTUATOR GP-PUMP |
| 5 | 183-8445 Y | ROTATING GP-PUMP |
| 6 | 183-8454 | HOUSING |
| 7 | 096-6095 | PLUG |
| 8 | 123-7582 | PIN-THREADED |
| 9 | 9T-3929 | PLUG AS |
| 10 | 9T-3928 | PLUG AS |
| 11 | 2M-9780 | SEAL-O-RING |
| 12 | 3J-1907 | SEAL-O-RING |
| 13 | 6E-4350 | PIN |
| 14 | 6E-4351 | PIN |
| 15 | 6E-4352 | PLUG-ORIFICE |
| 16 | 6E-4353 | CONNECTOR |
| 17 | 6E-4385 M | LOCKNUT (M12X1.5-THD) |
| 18 | 6E-4614 | PIN |
| 19 | 6V-5326 | SEAL-O-RING |
| 21 | 7M-8485 | SEAL-O-RING |
| 22 | 8C-5193 | SEAL-O-RING |
| 24 | 9S-8004 | PLUG (9/16-18-THD) |
| 25 | 9S-8006 | PLUG (7/8-14-THD) |
| 26 | 9S-9334 | PLUG |
- Provide correct model number/machine serial number/any numbers on the parts itself
- Or measure the parts and provide dimensions or drawings
- High frequency quenching No.40 manganese steel for cylinder rods - better bending resistance
- No.25 manganese steel for tube material - superior wear resistance
- High-strength hardened steel for rod head and tube head - enhanced durability
- Name-brand seal kits to minimize hydraulic cylinder oil leakage
- Common excavator hydraulic cylinder models: in stock, delivered within 7 days
- Orders less than one container: approximately 2 weeks
- Orders of 1-2 containers: 4-6 weeks
- Manufacturing time may vary during busy seasons - confirmed through discussion
- Orders under $3000: full payment at order
- Orders over $3000: 50% deposit to start, 50% balance upon delivery
- Inspection service accepted
- Customized orders: 70% payment as deposit, 30% balance upon delivery
- Option to use your shipping agent - we coordinate accordingly
- If no agent provided, we arrange through our established shipping partners
- Light goods: UPS/DHL/TNT (DAP terms)
- Heavy goods: by sea (FOB, CIF, CFR)
GuangZhou GuoLi Engineering Machinery Co., Ltd. specializes in excavator hydraulic cylinders, including arm, boom, and bucket cylinders, as well as cylinder tubes, rods, seal kits, engine parts, pumps and undercarriage components. Based in Guangzhou with access to a major construction machinery parts market, we offer a complete part number system, detailed specifications, and strong foreign trade expertise. We strive for professionalism and win-win cooperation.
Active participation in major industry exhibitions including 2023 Malaysia and 2024 Shanghai Bauma, demonstrating our commitment to industry engagement and customer relationships.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.