Hanchi Auto Parts
7421974078 Water Pump Suitable for Volvo RENAULT TRUCK VOLVO BUS High Quality
Couldn't load pickup availability
7421974078 belongs to the Volvo cooling system parts family. The pump sits on RENAULT TRUCK, VOLVO BUS, VOLVO TRUCK and other listed engines. Our aftermarket equivalent follows the OE dimensions and passes air-tightness testing under a negative pressure of 0.1 MPa. It also replaces 20921917, 20921947, 20921951, 21618716, 21643286 and 15 more.
Which engines use the 7421974078 water pump?
Fitment covers RENAULT TRUCK; VOLVO BUS; VOLVO TRUCK; pulley 147.5mm.
Match your engine model to the list and the pump will fit without rework.
What are the specifications of 7421974078?
| Parameter | Value |
| OE number | 7421974078 |
| 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 7421974078?
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
- 7421812257
- 7421969188
- 85020130
Packing and quality checks
For shipping estimates, count on 2 pumps per carton (13.50 kg, 51.5 x 29 x 26 cm).
Before boxing, each pump passes a negative-pressure leak check and a hand-rotation check for smooth, noise-free bearing movement.
Frequently asked questions
What vehicles or engines does 7421974078 fit?
7421974078 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 7421974078?
7421974078 interchanges with 20921917, 20921947, 20921951, 21618716, 21643286, 21648712 and 14 more. All of these refer to the same water pump assembly.
Is 7421974078 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 7421974078 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 7421974078 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.
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
Our company understands the challenges of bringing some special parts from paper to reality. Therefore, we offer our services to customers that need help.