Hanchi Auto Parts
16100-3781 Water Pump Suitable for Hino P11C/FM2P P11C-TK LFR-2P High Quality
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If your parts book shows 16100-3781, you need a water pump for P11C/FM2P, P11C-TK LFR-2P, 22teeth and other listed engines. Ours is a matching replacement — same mounting holes, same belt pulley height, pressure-tested before packing. Related OE numbers include —.
Which engines use the 16100-3781 water pump?
Fitment covers P11C/FM2P; P11C-TK LFR-2P; 22teeth.
Match your engine model to the list and the pump will fit without rework.
What are the specifications of 16100-3781?
| Parameter | Value |
| OE number | 16100-3781 |
| Fits brand | Hino |
| TO Shaft head height | 122.9 |
| Mounting hole position | Aligned to OE mounting points |
| Threads on the pump body | RC1/2 |
| TO Impeller height Ⅰ | 0.5 |
| TO Gear height | 51.5 |
| Installation of water pipes | Water pipe fitted complete, no deformation |
| 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 | 22 |
| Included Component 1 | O82X3.5 |
| Net weight | 9.80 kg |
| Packing | 2 pcs/ctn, 21.30 kg gross |
Packing and quality checks
Logistics data: 2 pcs/ctn, 21.30 kg gross, 59 x 38 x 21 cm.
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 16100-3781 fit?
16100-3781 fits P11C/FM2P, P11C-TK LFR-2P, 22teeth and other listed engines. It is a Hino application water pump, and our aftermarket unit replaces it directly.
Is 16100-3781 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 16100-3781 water pump weigh?
One pump weighs 9.80 kg net. A full carton of 2 pieces comes to 21.30 kg gross.
How do I confirm 16100-3781 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.
Send us the OE number and your engine model — we confirm fitment before you order.
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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