Hanchi Auto Parts
20921951 Water Pump Suitable for Volvo RENAULT TRUCK VOLVO BUS High Quality
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20921951 is a Volvo water pump OE number. Our replacement matches the same mounting and cooling specs, fits RENAULT TRUCK, VOLVO BUS, VOLVO TRUCK and other listed engines, and ships with a 5.60 kg net weight (2 pcs per carton). Cross numbers: 20921917, 20921947, 21618716, 21643286, 21648712 and 15 more.
Which engines use the 20921951 water pump?
This pump was designed for RENAULT TRUCK; VOLVO BUS; VOLVO TRUCK; pulley 147.5mm.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of 20921951?
| Parameter | Value |
| OE number | 20921951 |
| 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 |
What part numbers interchange with 20921951?
Parts books from different markets list this pump under several numbers. All of them point to the same unit:
- 20921917
- 20921947
- 21618716
- 21643286
- 21648712
- 21648716
- 21781059
- 21812242
- 21812257
- 21941088
- 21969187
- 21974080
- 7421072414
- 7421648716
- 7421781059
- 7421812242
- 7421812257
- 7421969188
- 7421974078
- 85020130
Packing and quality checks
Each pump is packed individually; a master carton holds 2 pieces at 13.50 kg gross.
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 20921951 fit?
20921951 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 20921951?
20921951 interchanges with 20921917, 20921947, 21618716, 21643286, 21648712, 21648716 and 14 more. All of these refer to the same water pump assembly.
Is 20921951 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 20921951 water pump weigh?
One pump weighs 5.60 kg net. A full carton of 2 pieces comes to 13.50 kg gross.
How do I confirm 20921951 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.
Message us with the OE number off your old pump. We reply with fitment confirmation and a price the same day.
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
Our company understands the challenges of bringing some special parts from paper to reality. Therefore, we offer our services to customers that need help.