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

MOQ： 1 SET
Price： $98
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Payment Terms	T/T,Western Union,D/A
Delivery Time	Ships in 24h (1-7 days max)
Packaging Details	Carton Packing, Wooden Case, Plastic Pallet, Paper Pallet.
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
Brand Name	For Yanmar
Model Number	4D88
Certification	ISO 9001
Place of Origin	CHINA

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Product Specification


Payment Terms	T/T,Western Union,D/A	Delivery Time	Ships in 24h (1-7 days max)
Packaging Details	Carton Packing, Wooden Case, Plastic Pallet, Paper Pallet.	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
Brand Name	For Yanmar	Model Number	4D88
Certification	ISO 9001	Place of Origin	CHINA
High Light	129001-32001 Engine Oil Pump ，OEM Engine Oil Pump ，129407-32000 oil pump

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.

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer,Exporter 


Year Established:

2018 


Total Annual:

400,000-USD 600,000


Employee Number:

>50 


Ecer Certification：

Verified Supplier 

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Company Name: Guangzhou Jusheng Precision Manufacturing Co., Ltd.
https://www.excavatorsparesparts.com/

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