HINO 700 PROFIA SH1E FS1E FR1E SS1E FM2P SELEGA BUS RU P11C P11C-T P11C-U 10.5L SHROUDED GEAR DRIVEN ENGINE COOLING WATER PUMP ASSY WITH BACK PLATE (OE: 16100-3910 / 161003910 / S1610-03910 / S161003910 / KHI-12W)

Overview

The Hino 700 / Profia / Bus P11C Shrouded Gear-Driven Engine Water Pump Assembly (Water Pump Assy 16100-3910 / 161003910 / S1610-03910 / KHI-12W) is a commercial-grade engine cooling system component engineered specifically for Hino 700 Series, Super Dolphin Profia heavy commercial transport trucks, prime movers, and Hino commercial buses powered by Hino P11C, P11C-T, and P11C-U (10.5L / 10,520cc) 24-valve inline-6 common-rail turbocharged diesel engines. Built with a 4-bolt top bearing cage housing a shrouded internal drive gear, dual opposing unpainted metal hose connection spouts (1 large-diameter spout + 1 medium-diameter spout), a raised 2-bolt oval front flange port, and a pre-installed 3-screw circular rear backing cover plate configuration, this heavy-duty cast iron water pump delivers continuous, high-volume coolant circulation through the cylinder block and oil cooler under heavy commercial haulage. Replacing a worn, noisy, leaking, or bearing-damaged water pump restores optimal cooling efficiency and prevents catastrophic engine overheating during long-haul operations.

Key Dimensions & Features (As Shown in Product Photos)

• Shrouded Drive Gear & 4-Bolt Bearing Cage: Heavy-duty cast iron bearing tower secured at the top by 4 hex bolts, featuring an exposed top ball bearing assembly and a side mesh cutout window housing the precision internal drive gear for direct engine timing gear engagement.

• Pre-Assembled Circular Rear Cover Plate: Supplied complete with a pre-installed circular rear backing cover plate fastened by 3 countersunk Phillips screws and sealed with an internal gasket, surrounded by CNC-machined perimeter mounting pads.

• Dual Opposing Metal Hose Spouts & Oval Flange Port:

  • Large Metal Hose Spout Arm: Equipped with a large-diameter unpainted metal hose sleeve/spout and a small metal breather/weep pin near the base of the bearing collar.

  • Medium Metal Hose Spout Arm: Equipped with a medium-diameter unpainted metal hose sleeve/spout on the opposite side of the volute body.

  • Raised 2-Bolt Oval Flange Port: Features a flat-machined 2-bolt oval coolant port on the front section of the main housing.

• Perimeter Mounting Bosses: Built with raised cylindrical through-bolt mounting bosses and dual-hole mounting ears around the cast iron housing.

• Visual Verification Notice: Key structural details including the 4-bolt shrouded gear cage, exposed top bearing, dual unpainted metal hose spouts, 2-bolt oval flange port, and 3-screw circular rear cover plate are shown directly in our product photos.

• Please verify your existing water pump drive type (shrouded gear vs. pulley hub), gear tooth count, and dual metal hose spout layout against our product photos before ordering.

Compatible Truck & Heavy Equipment Applications

• HINO 700 / PROFIA HEAVY COMMERCIAL TRUCKS & BUSES:

  • Hino 700 & Super Dolphin Profia Series (SH1E, SS1E, FS1E, FR1E, FN1E, FW1E, FY1E, ZS1E, ZY1E, FM2P Heavy Prime Movers, Cargo Lorries, Multi-Axle Tippers, Dump Trucks & Concrete Mixers)

  • Hino Commercial Buses & Coaches (Selega RU1E, Blue Ribbon Series running P11C engines)

• Engine Application:

  • Hino P11C / P11C-T / P11C-U / P11C-UH / P11C-UJ (10.5L / 10,520cc 24-Valve Inline-6 Turbocharged & Intercooled Diesel)

• OEM & Cross-Reference Part Numbers:

  • 16100-3910 / 161003910 (Hino Genuine OEM)

  • S1610-03910 / S161003910

  • NUK / Kawasaki Ref: KHI-12W

• (Note: Hino P11C engines use two different drive styles and several gear tooth variations across truck, bus, and excavator platforms: pulley-driven P11C engines use a 4-hole flange hub [16100-3811 / 16100-3311 / HWP-053], whereas gear-driven P11C engines use shrouded gear pumps [16100-3910, 16100-3771, 16100-3772, 16100-3781, 16100-3782]. This 16100-3910 unit features the 4-bolt shrouded gear tower, dual metal hose spouts, and a 2-bolt oval flange port. Always match your old sample pump's gear tooth count and hose spouts prior to ordering.)

Why Choose Our Commercial Truck Parts?

• Induction-Hardened Shrouded Drive Gear: Heat-treated internal drive gear housed inside a rigid 4-bolt cast iron bearing cage ensures smooth meshing with the P11C timing gear train and resists tooth wear under continuous load.

• Pre-Assembled Rear Cover Plate & Gasket: Factory-sealed with a 3-screw circular backing plate to prevent rear cover coolant leaks and save workshop installation time.

• Precision Metal Hose Sleeves & Oval Flange: Press-fitted metal hose spouts and a CNC-machined 2-bolt oval flange face provide secure, leak-free connections across all cooling lines.

• Heavy-Duty Bearing & Mechanical Shaft Seal: Engineered to withstand high gear-driven radial loads and elevated cooling system pressures without shaft play or premature coolant weepage.

• Ready Stock & Fast Shipping: Readily stocked for quick dispatch.

Need Help Confirming Fitment?

Unsure whether this 16100-3910 P11C water pump matches your prime mover, lorry, or bus engine setup?

• Check your old pump against the 4-bolt shrouded gear cage, dual metal hose spouts, 2-bolt oval flange, and 3-screw rear plate shown in our pictures.

• Or send your Chassis Number (VIN) / Engine Model (P11C) / Gear Tooth Count / sample photos to our team via WhatsApp for instant confirmation!