Description
Overview:
This engine water pump is a Non-Genuine compatible part that replaces Yanmar OEM No. 119802-42000. It circulates coolant through the engine block and cylinder head to control operating temperature in compact construction equipment. Designed for mini excavators using Yanmar 3-cylinder diesel engines, it mounts in the factory position and drives from the existing belt and pulley. The pump features a durable metal body with a pre-fitted bearing and shaft seal for reliable service. Suitable for Yanmar B-series and ViO models and Komatsu mini excavators specified with Yanmar engines. Example compatible machines include Yanmar B25V and Komatsu PC27R. This replacement is intended to match the original hose connections and mounting geometry for straightforward installation and correct belt alignment.
Key Features:
- Non-Genuine compatible replacement for Yanmar OEM 119802-42000
- Cross references: 119802 42000, 245651, 245 651
- Fits Yanmar B22, B25V, B27, B30V mini excavators
- Also suits Yanmar ViO30 and ViO35 models
- Compatible with Komatsu PC20R, PC27R, PC20-7, PC27-8, PC25R-8
- Engine compatibility: 3TNV82A, 3TNV75, 3TNE82, 3D82, 3D78
- Direct bolt-on using the original fasteners
- Uses the existing pulley and belt arrangement
- Matches OEM hose connection locations for straightforward fitment
- Metal housing with pre-installed shaft seal and bearing
- Designed for continuous coolant circulation under normal site conditions
- Suitable for standard ethylene glycol-based coolants
Typical Applications:
Used in Yanmar and Komatsu mini excavators to maintain stable engine temperature during digging, grading, and utility trenching. Provides continuous coolant flow through the engine jacket and head, supporting reliable operation under stop-start and constant-load site work.
Also known as:
Engine water pump, coolant pump, Yanmar mini excavator water pump, 3TNV82 water pump, 3TNE82 pump, cooling pump assembly.
Fits Models:
3TNV82A, 3TNV82A-M5FA, 3TN75L-RB, 3TNE82, 3TNV75, 3TNV82, 3TNC78, 3TN75, 3TNC80, 3TNV76, B25V, B22, B27, B30V, VIO30, VIO35, PC20R, PC27R, PC27-8, PC20-7, PC25R-8, 3D82, 3D78
Alternate Part Numbers:
119802-42000, 119802 42000, 245 651, 245651
Product Specifications
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
