Home /Products/Engine Oil Pump/OEM 129001-32001 119802-32100 129407-32000 Yanmar 4D88 Diesel Engine Oil Pump

OEM 129001-32001 119802-32100 129407-32000 Yanmar 4D88 Diesel Engine Oil Pump

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OEM 129001-32001 119802-32100 129407-32000 Yanmar 4D88 Diesel Engine Oil Pump
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Features
Specifications
Applicable Engine Model: Yanmar 4D88
OEM Part Number / Cross Reference: 129001-32001 119802-32100 129407-32000
Drive Type: Direct Drive From Crankshaft – Ensures Positive And Reliable Operation
Housing Material: High‑grade Cast Iron – Durable And Resistant To Wear
Gear Material: Hardened Steel – Precision‑machined For Long Service Life
Lubrication System: Full‑pressure Forced‑feed – Delivers Oil To All Critical Engine Components
Quality Assurance: 100% Functionally Tested – Meets Or Exceeds OEM Specifications
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129001-32001 Engine Oil Pump

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OEM Engine Oil Pump

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129407-32000 oil pump
Basic Infomation
Place of Origin: CHINA
Brand Name: For Yanmar
Certification: ISO 9001
Model Number: 4D88
Payment & Shipping Terms
Packaging Details: Carton Packing, Wooden Case, Plastic Pallet, Paper Pallet.
Delivery Time: Ships in 24h (1-7 days max)
Payment Terms: T/T,Western Union,D/A
Product Description
Yanmar 4D88 Diesel Engine Oil Pump | OEM 129001-32001 119802-32100 129407-32000 | Engine Oil Pump
Ensure reliable lubrication and extended engine life for your excavator or compact equipment with this high-quality engine oil pump for the Yanmar 4D88 diesel engine. The oil pump is the critical component that delivers pressurized oil to all rotating and sliding parts, preventing metal-to-metal contact and catastrophic engine failure.
Technical Specifications
Engine Model Yanmar 4D88, 4D88E, 4D88-5, 4D88-6, Komatsu 4D88E
Part Name Engine Oil Pump (Gear Rotor Type)
OEM Part Numbers 129001-32001, 119802-32100, 129407-32000
Engine Type 4-Cylinder Inline Diesel
Displacement 2.19 L
Bore x Stroke 88 mm x 90 mm
Application Excavator / Construction Machinery / Compact Equipment
Lubrication System Forced-Feed / Full Pressure
Pump Type Precision Trochoid Gear Rotor Design
Drive Type Direct Drive from Crankshaft via Timing Gears
Material High-Grade Cast Iron Housing / Hardened Steel Rotors
Condition Brand New
Warranty 6 Months
Compatible Equipment Models
Excavators Komatsu PC27MR, PC27R, PC30MR, PC35MR, PC35R, PC40MR, PC45R, PC40MR-2, PC40MR-3, PC45MR-3, PC50MR-2, PC50MR-3, PC58UU-3, PC40R-8, PC50R-8
Excavators Hitachi ZX40U-2, ZX40U-3, ZX48U-3, ZX50U-2, ZX50U-3
Excavators Kobelco CX50, CX50B, CX55B, Z76RP, Z84, Z85, Z89
Excavators Takeuchi TB53FR, TB53RF, TB145, TB153FR, TB250
Excavators Yanmar VIO45, VIO45-5B, VIO50
Skid Steer Loaders Gehl KL278, KL398, SL4240, 4240, 4240E, 540, 540R
Skid Steer Loaders Mustang 450Z NXT2, 1350R, 1500R, 2041, 2044, 2054
Skid Steer Loaders Komatsu SK714-5, SK815-5, SK818-5
Compact Track Loaders ASV / Terex / Yanmar models with 4D88 engine
Wheel Loaders Komatsu WA50-6, WA65-6
Other Applications Generators, forklifts, and agricultural machinery powered by Yanmar 4D88 diesel engines
Product Features & Engineering Advantages
  • Critical Component for Engine Longevity: The oil pump is the heart of the engine lubrication system, drawing oil from the oil pan and forcing it under pressure through oil galleries to rotating bearings, sliding pistons, and the camshaft.
  • Positive Displacement Design: As engine RPM increases, the pump turns faster and pumps more oil, matching increased lubrication and cooling requirements at higher engine speeds.
  • Precision Trochoid Rotor Technology: Features precision-engineered trochoid gear rotors that create closed cavities to generate vacuum and draw oil in, then contract to pressurize and discharge oil for consistent flow.
  • Robust Construction: Manufactured from high-strength cast iron housing with hardened steel rotors, built to withstand extreme combustion pressures and temperatures in demanding construction environments.
  • Direct Crankshaft Drive: Engineered for direct drive from the crankshaft via timing gears, ensuring positive and reliable operation whenever the engine is running.
  • OEM-Compliant Specifications: Manufactured to meet or exceed original Yanmar and Komatsu specifications for the 4D88 engine series.
  • Fuel-Efficient Operation: Proper lubrication from a high-quality oil pump is essential for maintaining the engine's fuel efficiency and operational cost savings.
  • Multiple OEM Cross-Reference: Direct replacement for multiple OEM numbers including 129001-32001, 119802-32100, 129407-32000, and their Yanmar-branded equivalents.
Quality Assurance
  • 100% Tested – Every oil pump undergoes functional testing to ensure proper pressure and flow characteristics
  • OEM Standard – Manufactured to meet or exceed original equipment specifications in ISO-certified facilities
  • Warranty – 6-month warranty against manufacturing defects
  • Global Shipping – Fast DHL, FedEx, UPS shipping available from multiple warehouses
  • Expert Support – Technical assistance available for part identification and compatibility verification
Installation Guidelines
The oil pump is typically located at the front of the engine inside the timing gear case or inside the oil pan. When installing a new oil pump on a Yanmar 4D88 engine:
  • Always inspect the oil pickup tube O-ring and screen for debris during installation
  • Professional installation is recommended due to the precision required for proper alignment and sealing
  • Regular oil changes with the correct viscosity oil will extend the life of both the oil pump and the engine
Warning: Never operate the engine without verifying proper oil pressure after pump replacement. Low oil pressure can cause immediate and severe engine damage.
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Engine Oil Pump

diesel engine oil pump

oil pumps

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