Hanchi Auto Parts
21010-J5125 Water Pump Suitable for Nissan H20 High Quality
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21010-J5125 is how Nissan lists this water pump. It serves H20 engines. Our version copies the OE mounting pattern and impeller geometry, so it drops in without modification. Cross-reference: 21010-66028, 21010-78200, 21010-78202, 21010-78203, 21010-78225 and 4 more.
Which engines use the 21010-J5125 water pump?
Fitment covers H20.
Any engine on this list takes our replacement as a straight swap.
What part numbers interchange with 21010-J5125?
Parts books from different markets list this pump under several numbers. All of them point to the same unit:
- 21010-66028
- 21010-78200
- 21010-78202
- 21010-78203
- 21010-78225
- 21010-78226
- 21010-J5025
- 21010-L1100
- 21010-V4425
What are the specifications of 21010-J5125?
| Parameter | Value |
| OE number | 21010-J5125 |
| Fits brand | Nissan |
| TO Shaft head height | 125.52 |
| Mounting hole position | Aligned to OE mounting points |
| Flange thread | M6X1 |
| TO Flange height | 118.81 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 1.92 |
| 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 | N125-WD-1 |
| Net weight of one | 1.60 |
| Net weight | 1.60 kg |
| Packing | 8 pcs/ctn, 15.00 kg gross |
Packing and quality checks
Packing runs 8 pumps per carton, 15.00 kg gross weight, carton size 40.8 x 36 x 38.5 cm.
Every pump leaves the line after a leak test at a negative pressure of 0.1 MPa. No leaks, no exceptions.
Frequently asked questions
What vehicles or engines does 21010-J5125 fit?
21010-J5125 fits H20 engines. It is a Nissan application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 21010-J5125?
21010-J5125 interchanges with 21010-66028, 21010-78200, 21010-78202, 21010-78203, 21010-78225, 21010-78226 and 3 more. All of these refer to the same water pump assembly.
Is 21010-J5125 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 21010-J5125 water pump weigh?
One pump weighs 1.60 kg net. A full carton of 8 pieces comes to 15.00 kg gross.
How do I confirm 21010-J5125 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.
OEM Avalible
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