Hanchi Auto Parts
U45011020 Water Pump Suitable for Perkins 403D-11 High Quality
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U45011020 is a Perkins water pump OE number. Our replacement matches the same mounting and cooling specs, fits 403D-11 engines, and ships with a 1.10 kg net weight (8 pcs per carton). Cross numbers: 145017960, 3801345, U45017961.
Which engines use the U45011020 water pump?
You will find this pump on 403D-11.
If your engine tag matches any entry above, this pump is the right replacement.
What are the specifications of U45011020?
| Parameter | Value |
| OE number | U45011020 |
| Fits brand | Perkins |
| TO Shaft head height | 111.9 |
| Mounting hole position | Aligned to OE mounting points |
| Threads on the pump body | 2-M6X1 |
| Flange thread | 4-M6X1 |
| TO Flange height | 103.9 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 0.6 |
| Air tightness testing | No leakage detected under negative pressure of 0.1 MPa |
| Appearance Ⅰ | Neutral finish, no third-party logos |
| Appearance Ⅱ | Clean surface: no dirt, rust or paint peeling |
| Assembly rotation | Turns freely by hand, no sticking or noise |
| Included Component 1 | PK205-WD-1 |
| Net weight | 1.10 kg |
| Packing | 8 pcs/ctn, 10.80 kg gross |
What part numbers interchange with U45011020?
Parts books from different markets list this pump under several numbers. All of them point to the same unit:
- 145017960
- 3801345
- U45017961
Packing and quality checks
Logistics data: 8 pcs/ctn, 10.80 kg gross, 40.8 x 36 x 38.5 cm.
We leak-test each unit at a negative pressure of 0.1 MPa, then spin it by hand to confirm free rotation.
Frequently asked questions
What vehicles or engines does U45011020 fit?
U45011020 fits 403D-11 engines. It is a Perkins application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace U45011020?
U45011020 interchanges with 145017960, 3801345, U45017961. All of these refer to the same water pump assembly.
Is U45011020 available from stock?
Yes, this number is in regular production. Lead time for carton quantities is usually a few days; ask us for current stock before ordering.
How much does the U45011020 water pump weigh?
One pump weighs 1.10 kg net. A full carton of 8 pieces comes to 10.80 kg gross.
How do I confirm U45011020 is the pump I need?
Check the OE number stamped on your old pump or in the parts book, then compare engine model and pulley height with the spec table on this page. If anything is unclear, send us a photo of the old unit.
Stock moves fast on this number. Send your inquiry with quantity and destination port for a firm quote.
Send the OE number, your quantity and your destination port — feel free to Contact Us. We reply with fitment confirmation and a quote.


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