Shandong Shengyue Technology Development Co.,Ltd is one of the most professional caterpillar 301.7 / 301.7cr / 301.7d main hydraulic pump assembly / axial piston pump 487-6207 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
Caterpillar 301.7 / 301.7CR / 301.7D Main Hydraulic Pump Assembly / Axial Piston Pump 487-6207
When installing a new or overhauled pump, you must manually fill the pump housing with clean hydraulic oil through the highest drain/fill port before starting the engine; dry running is strictly prohibited, as the internal slippers and valve plate would otherwise burn out within seconds.
CAT 301.7 Hydraulic Main Pump Overhaul & Replacement BOM Detail
| Module Category | CAT Genuine Part No. (Example) | Component Name (EN) | Std. Qty | Maintenance / Overhaul Remarks & Suggestions |
|---|---|---|---|---|
| Rotary Kit (Core) | 487-6207 Comp. / Standard | Cylinder Block | 1 | Critical Inspection: 9-hole cast-iron block. Must be replaced if the face or cylinder bores are scratched, worn, or showing severe internal leakage. |
| Rotary Kit (Core) | 487-6207 Comp. / Standard | Piston Set with Shoes | 9 (1 Set) | Mandatory Replacement: Friction-reducing copper-coated sliding shoes. If the copper layer flakes off or ball joints loosen, replace as a complete set. |
| Rotary Kit (Core) | 487-6207 Comp. / Standard | Valve Plate | 1 | Mandatory Replacement: Specific to rotation. Forms a micro-level high-pressure seal against the cylinder. Single-sided wear spikes oil temperature. |
| Rotary Kit (Core) | 487-6207 Comp. / Standard | Retainer Plate / Set Plate | 1 | Recommended: High-tensile spring steel plate. Holds piston shoes against the swash plate; replace immediately if deformed, cracked, or warped. |
| Rotary Kit (Core) | 487-6207 Comp. / Standard | Thrust Plate | 1 | Recommended: Wear-resistant steel liner on the swash plate surface. Highly polished; deep scratches will quickly destroy new piston shoes. |
| Drive Component | Manufacturer Standard | Drive Shaft (Spline Shaft) | 1 | Replace as Needed: Inserts into the flywheel coupler. Check for worn spline teeth or twist distortion to prevent sudden shaft shearing. |
| Control Component | 487-6207 Component | Load Sensing (LS) Regulator Valve | 1 | Inspect & Clean: Controls displacement flow. Clogged spools or fatigued internal springs cause sudden engine stalling or dead/rigid hydraulic response. |
| High-Frequency Seals | CAT Genuine Seal Kit | Pump Seal Kit (NBR/Viton) | 1 Set | 100% Mandatory Renewal: Includes high-temp front shaft seal, casing O-rings, and port seals. Reusing old seals will cause external oil leaks. |
| Coupling Hardware | 399-2936 (Ref) | Flywheel Flexible Coupling | 1 | Mandatory Renewal: Rubber dampening component sitting between engine flywheel and pump shaft. Easily degrades from heat; replace concurrently. |
| System Consumable | CAT HYDO Series | Premium Anti-Wear Hydraulic Oil | Full Cap. | Mandatory Refill: Old oil will contain metallic dust after pump failure. Must flush the tank and lines entirely before refilling, or the new pump will fail. |
| System Consumable | 453-6534 / 453-6535 (Ref) | Suction & Return Hydraulic Filters | 1 Set | Mandatory Renewal: Traps lingering metallic debris within the system loop; must be replaced in tandem with the fresh hydraulic oil. |
DETAILS
| DESCRIPTION | Main Hydraulic Pump Assembly / Axial Piston Pump | PART NUMBER | 487-6207 |
| WEIGHT | 20kg | VOLUME | 38 cm × 26 cm × 28 cm |
| TRUCK MOLDE | Caterpillar | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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