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Yanmar 4D84 Diesel Engine Oil Pump OEM 129407-32000 129001-32001 129418-32000

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Yanmar 4D84 Diesel Engine Oil Pump OEM 129407-32000 129001-32001 129418-32000
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Features
Specifications
Applicable Engine Model: Yanmar 4D84
OEM Part Number / Cross Reference: 129407-32000 129001-32001 129418-32000
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
Highlight:

129001-32001 diesel engine oil pump

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129407-32000 diesel engine oil pump

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129418-32000 engine oil pump
Basic Infomation
Place of Origin: CHINA
Brand Name: For Yanmar
Certification: ISO 9001
Model Number: Yanmar 4D84
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 4D84 Diesel Engine Oil Pump | OEM 129407-32000 129001-32001 129418-32000 | 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 4D84 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
Parameter Details
Engine Model Yanmar 4D84, 4D84-2, 4D84-3, 4TNE84, 4TNV84, 4TNV84T, Komatsu 4D84E
Part Name Engine Oil Pump (Gear Rotor Type)
OEM Part Numbers 129407-32000, 129001-32001, 129418-32000, 129006-42002
Engine Type 4-Cylinder Inline Diesel
Bore x Stroke 84 mm x 90 mm (3.30 in x 3.54 in)
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 / Remanufactured Options Available
Warranty 6 Months
Compatible Equipment Models
Equipment Type Applicable Models
Excavators Komatsu PC27MR, PC30MR, PC35MR, PC40MR, PC40MR-2, PC40MR-3, PC45MR, PC45MR-3
Excavators Komatsu PC40R-8, PC45R-8, PC50R-8, PC50MR-2, PC50MR-3, PC58UU-3
Excavators Komatsu PC40-7, PC45-1
Excavators Kobelco SK40SR-2
Excavators Hitachi ZX40U, ZX48U, ZX50U series
Excavators Yanmar VIO45, VIO50, B50 series
Excavators Takeuchi TB53FR, TB53RF, TB145, TB153FR
Skid Steer Loaders Komatsu SK510, SK815, SK815-5, SK820, SK820-5
Skid Steer Loaders Mustang 2040, 2042, 2044, 2050
Skid Steer Loaders Gehl 4240, 4240E, 540, 540R
Skid Steer Loaders Daewoo 1340XL, 602 Plus, DSL601
Skid Steer Loaders Doosan 1340XL
Other Applications Generators, forklifts, and agricultural machinery powered by Yanmar 4D84 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 through a pickup pipe and screen to prevent large particles from entering the pump.
  • Positive Displacement Design - Ensures the amount of oil that leaves equals the amount that enters, matching increased lubrication requirements at higher engine speeds.
  • Precision Trochoid Rotor Technology - Features precision-engineered trochoid gear rotors that create closed cavities for consistent oil flow and pressure regulation.
  • Robust Construction - Manufactured from high-strength cast iron housing with hardened steel rotors to withstand extreme combustion pressures and temperatures.
  • 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 4D84 engine series.
  • Pickup Pipe Screen Protection - Includes a pickup pipe with gauze filter screen that prevents large particles from being sucked into the pump.
  • Multiple OEM Cross-Reference - Direct replacement for multiple OEM numbers including 129407-32000, 129001-32001, 129418-32000, 129006-42002.
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 4D84 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

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