Hanchi Auto Parts
7421812257 Water Pump Suitable for Volvo RENAULT TRUCK VOLVO BUS High Quality
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If your parts book shows 7421812257, you need a water pump for RENAULT TRUCK, VOLVO BUS, VOLVO TRUCK and other listed engines. Ours is a matching replacement — same mounting holes, same belt pulley height, pressure-tested before packing. Related OE numbers include 20921917, 20921947, 20921951, 21618716, 21643286 and 15 more.
Which engines use the 7421812257 water pump?
Fitment covers RENAULT TRUCK; VOLVO BUS; VOLVO TRUCK; pulley 147.5mm.
Any engine on this list takes our replacement as a straight swap.
What part numbers interchange with 7421812257?
Depending on the catalog you use, the same pump shows up as:
- 20921917
- 20921947
- 20921951
- 21618716
- 21643286
- 21648712
- 21648716
- 21781059
- 21812242
- 21812257
- 21941088
- 21969187
- 21974080
- 7421072414
- 7421648716
- 7421781059
- 7421812242
- 7421969188
- 7421974078
- 85020130
What are the specifications of 7421812257?
| Parameter | Value |
| OE number | 7421812257 |
| Fits brand | Volvo |
| TO Flange height | 99.1 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 1.3 |
| 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 |
| Net weight of one | 5.60 |
| Units per Carton | 2 |
| Gross Weight | 13.50 |
| Measurement | 51.5 x 29 x 26 cm |
| Net weight | 5.60 kg |
| Packing | 2 pcs/ctn, 13.50 kg gross |
Packing and quality checks
Each pump is packed individually; a master carton holds 2 pieces at 13.50 kg gross.
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 7421812257 fit?
7421812257 fits RENAULT TRUCK, VOLVO BUS, VOLVO TRUCK and other listed engines. It is a Volvo application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 7421812257?
7421812257 interchanges with 20921917, 20921947, 20921951, 21618716, 21643286, 21648712 and 14 more. All of these refer to the same water pump assembly.
Is 7421812257 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 7421812257 water pump weigh?
One pump weighs 5.60 kg net. A full carton of 2 pieces comes to 13.50 kg gross.
Not sure this is your pump? Send a photo of the old unit and the engine tag; we will match it.
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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