Hanchi Auto Parts
S1610-03971 Water Pump Suitable for Hino J08E J08W (M8) High Quality
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Looking for S1610-03971? It is the Hino OE reference for a cooling water pump used on J08E and J08W (M8) engines. The replacement we supply keeps the same fit and pulley dimensions. Net weight 6.30 kg, packed 2 per carton.
Which engines use the S1610-03971 water pump?
This pump was designed for J08E; J08W (M8).
Any engine on this list takes our replacement as a straight swap.
What are the specifications of S1610-03971?
| Parameter | Value |
| OE number | S1610-03971 |
| Fits brand | Hino |
| TO Shaft head height | 148.3 |
| Mounting hole position | Aligned to OE mounting points |
| Threads on the pump body | 3-M8X1.25 |
| Flange thread | 4-M10X1.5 |
| TO Flange height | 129.3 |
| Flange jumping | 0.07 |
| TO Impeller height Ⅰ | 0.8 |
| 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 |
| Included Component 1 | O68X3.5 |
| Net weight | 6.30 kg |
| Packing | 2 pcs/ctn, 14.30 kg gross |
What part numbers interchange with S1610-03971?
Dealers and fleet systems quote this pump under more than one OE number:
- 16100-E0021
- 16100-E0022
- 16100-E0070
Packing and quality checks
Each pump is packed individually; a master carton holds 2 pieces at 14.30 kg gross.
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 S1610-03971 fit?
S1610-03971 fits J08E and J08W (M8) engines. It is a Hino application water pump, and our aftermarket unit replaces it directly.
What other part numbers replace S1610-03971?
S1610-03971 interchanges with 16100-E0021, 16100-E0022, 16100-E0070. All of these refer to the same water pump assembly.
Is S1610-03971 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 S1610-03971 water pump weigh?
One pump weighs 6.30 kg net. A full carton of 2 pieces comes to 14.30 kg gross.
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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