HINO SUPER DOLPHIN FN FP FR FS FH BUS RU HU EP100 EP100T EM100 8.8L 9.4L 23T GEAR DRIVEN ENGINE COOLING WATER PUMP ASSY WITH BACK PLATE (OE: 16100-2833 / 161002833 / 16100-2830 / 16100-2831 / 16100-2832 / HP-3108 / HP3108)

Overview

The Hino EP100 / EM100 23T Gear-Driven Engine Water Pump Assembly (Water Pump Assy 16100-2833 / 161002833 / HP-3108 / HP3108) is a commercial-grade engine cooling system component engineered specifically for Hino Super Dolphin heavy commercial transport trucks, commercial buses, and industrial crane machinery powered by Hino EP100 / EP100-T (8.8L Turbo) and EM100 (9.4L) inline-6 diesel engines. Built with a precision 23-Tooth (23T) helical drive gear, pre-installed steel rear backing cover plate (secured with 6 hex bolts), extended side coolant pipe with an integrated 2-bolt side flange port, raised 2-bolt oval front flange port, and auxiliary rear hose spout configuration, this heavy-duty cast iron water pump delivers continuous, high-volume coolant circulation through the engine block and oil cooler under heavy commercial haulage. Replacing a worn, leaking, or bearing-damaged water pump restores optimal engine operating temperatures and prevents overheating during long-haul and heavy-duty operations.

Key Dimensions (As Labeled in Product Photos)

• Drive Mechanism: Precision-machined 23-Tooth (23T) helical drive gear pressed onto a heavy-duty stepped bearing shaft for direct engine timing gear drive.

• Complete Assembly with Rear Cover Plate: Supplied complete with a pre-installed steel rear backing cover plate (fastened by 6 grade-8.8 hex bolts) and internal sealing gasket, with 3 perimeter mounting bolt holes.

• Multi-Port Cast Iron Volute Body:

  • Extended left-hand coolant pipe featuring both a round hose outlet end and a machined 2-bolt flat side flange port.

  • Center-front raised machined 2-bolt oval flange port (with 2 tapped bolt ears).

  • Upper-right secondary round hose connection spout.

• Measurement Notice: Key specifications including the 23T helical gear, multi-port housing layout, and pre-assembled 6-bolt rear cover plate are shown directly in our product photos.

• Please verify your existing water pump gear tooth count (23T), side flange ports, and rear cover plate profile against our product photos before ordering.

Compatible Truck & Heavy Equipment Applications

• HINO HEAVY COMMERCIAL TRUCKS & BUSES:

  • Hino Super Dolphin Series (FN, FP, FR, FS, FH, SH Heavy Cargo Lorries, Prime Movers, Tippers, Dump Trucks & Mixer Trucks running EP100 / EM100 engines)

  • Hino Commercial Buses (RU, HU, Blue Ribbon Series)

  • Heavy Cranes & Construction Equipment powered by Hino EP100 / EM100 series diesel engines

• Engine Application:

  • Hino EP100 / EP100-T (8.8L Inline-6 Turbocharged Direct Injection Diesel)

  • Hino EM100 (9.4L Inline-6 Naturally Aspirated Direct Injection Diesel)

• OEM & Cross-Reference Part Numbers:

  • 16100-2833 / 161002833 (Hino Genuine OEM)

  • 16100-2830 / 16100-2831 / 16100-2832

  • S1610-02833 / S161002833

  • HP-3108 / HP3108

• (Note: Hino EP100 and EM100 water pumps have variations in side port layouts and gear specifications [such as 16100-2862 for EP100TE]. This 16100-2833 / HP-3108 unit specifically uses a 23-Tooth (23T) helical drive gear, a 2-bolt oval center flange port, and an extended side pipe with a 2-bolt side flange. Always count your gear teeth [23T] and match the housing ports against your old sample prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Induction-Hardened 23T Helical Gear: Heat-treated 23-tooth drive gear meshes smoothly with the engine timing gear train, resisting tooth pitting, wear, and gear backlash under continuous high-RPM operation.

• Pre-Assembled Rear Cover Plate & Gasket: Comes ready to bolt on with a factory-sealed 6-bolt steel backing plate, saving workshop assembly time and preventing rear plate coolant leaks.

• Heavy-Duty Cast Iron Multi-Port Casing: Thick-walled cast iron housing with precision-machined flange surfaces ensures leak-free sealing across all coolant bypass and radiator ports.

• Reinforced Shaft & Mechanical Seal: Built to endure high temperatures and continuous gear-driven radial loads without shaft play or coolant weepage.

• Ready Stock & Fast Shipping: Readily stocked for quick dispatch across Peninsular and East Malaysia.

Need Help Confirming Fitment?

Unsure whether this water pump matches your lorry, bus, or crane engine setup?

• Check your old pump against the 23T drive gear, side flange ports, and rear backing plate shown in our pictures.

• Or send your Chassis Number (VIN) / Engine Model (EP100 / EM100) / Gear Teeth Count (23T) / sample photos to our team via WhatsApp for instant confirmation!