Hanchi Auto Parts
10121021 Water Pump Suitable for Liebherr R916 R934 High Quality
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10121021 is a Liebherr water pump OE number. Our replacement matches the same mounting and cooling specs, fits R916, R934, D934 and other listed engines, and ships with a 4.80 kg net weight (4 pcs per carton). Cross numbers: 10121020, 10132817.
Which engines use the 10121021 water pump?
This pump was designed for R916; R934; D934; D936; D946.
When in doubt, compare the old pump pulley height against our spec table below — it settles most fitment questions.
What are the specifications of 10121021?
| Parameter | Value |
| OE number | 10121021 |
| Fits brand | Liebherr |
| TO Impeller height Ⅱ | 40 |
| TO Shaft head height | 94.5 |
| Mounting hole position | Aligned to OE mounting points |
| TO Gear height | 93.2 |
| 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 |
| Number of Teeth | 29 |
| Included Component 1 | O120X3.5-2 |
| Included Component 2 | O73X3.5-3 |
| Net weight of one | 4.80 |
| Net weight | 4.80 kg |
| Packing | 4 pcs/ctn, 21.20 kg gross |
What part numbers interchange with 10121021?
One pump, many part numbers. The full cross list:
- 10121020
- 10132817
Packing and quality checks
Packing runs 4 pumps per carton, 21.20 kg gross weight, carton size 59.5 x 51 x 25 cm.
Air-tightness is checked pump by pump under a negative pressure of 0.1 MPa before packing.
Frequently asked questions
What vehicles or engines does 10121021 fit?
10121021 fits R916, R934, D934 and other listed engines. It is a Liebherr application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace 10121021?
10121021 interchanges with 10121020, 10132817. All of these refer to the same water pump assembly.
Is 10121021 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 10121021 water pump weigh?
One pump weighs 4.80 kg net. A full carton of 4 pieces comes to 21.20 kg gross.
How do I confirm 10121021 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.


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