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{"title":"Yanmar 4TNV94 Diesel Engine Oil Pump OEM 119450-42010 119450-42011","imgUrl":"https:\/\/img.chinax.com\/nimg\/05\/af\/1e793ae095c62de783169f8456bd-200x200-1\/yanmar_4tnv94_diesel_engine_oil_pump_oem_119450_42010_119450_42011.jpg","attrs":{"Payment Terms":"T\/T,,D\/A","Housing Material":"High\u2011grade cast iron \u2013 durable and resistant to wear","Minimum Order Quantity":"1 SET","Place of Origin":"CHINA"}}
{"title":"ME990328 ME2211050S Mitsubishi 4M50 Diesel Engine Oil Pump OEM","imgUrl":"https:\/\/img.chinax.com\/nimg\/d6\/86\/a3aa6c0da5774629abfd57e1f7f4-200x200-1\/me990328_me2211050s_mitsubishi_4m50_diesel_engine_oil_pump_oem.jpg","attrs":{"Applicable Engine Model":"Mitsubishi 4M50","Brand Name":"For Mitsubishi","Delivery Time":"Ships in 24h (1-7 days max)","Housing Material":"High\u2011grade cast iron \u2013 durable and resistant to wear"}}
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
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.
