VH166913730A Turbo Water Pipe Sub Assy

Product Overview

The VH166913730A Turbo Water Pipe Sub Assy is a critical cooling system component for the Hino J05E-TA engine powering Kobelco SK200-8 and SK210LC-8 excavators. This turbocharger water pipe, also known as a coolant pipe or water tube, circulates engine coolant to and from the turbocharger to regulate its temperature during operation.

The Kobelco SK200-8 and SK210LC-8 are 20-21 ton class excavators powered by the Hino J05E-TA engine, a 4-cylinder, 5.123-liter turbocharged diesel with intercooler producing 114 kW (155 HP) at 2,000 rpm . The J05E-TA engine features a water-cooled turbocharger that relies on a continuous flow of engine coolant to dissipate heat generated during boost operation .

The turbocharger water pipe is part of the engine’s cooling circuit, typically connecting the cylinder block to the turbocharger. The “Sub Assy” designation indicates this is a complete assembly, often including the pipe, brackets, and sometimes pre-installed gaskets or seals needed for installation . When this pipe fails due to corrosion, cracking, or damage, the engine can lose coolant, leading to turbocharger overheating and potential failure. Replacing a damaged pipe with this OEM-spec VH166913730A assembly restores proper coolant flow to the turbocharger.

Key Features

• OEM Specification Compliance: Manufactured to meet the exact dimensional and material specifications required by Hino for the J05E-TA engine turbocharger cooling system.

• Complete Sub Assembly: Includes the pipe with correct bends and mounting brackets for straightforward replacement.

• Corrosion-Resistant Construction: Manufactured from materials designed to withstand continuous exposure to hot engine coolant without degrading.

• Precision Bent Tubing: Factory-formed to match the exact routing path required for J05E-TA engine applications, ensuring proper clearance from other components.

• Direct Replacement: Matches OEM mounting dimensions and connection points for a perfect fit with no modifications required.

• Essential for Turbocharger Cooling: Ensures proper coolant circulation through the turbocharger to prevent overheating and premature bearing failure.

• New Gaskets/Seals Included: The assembly typically includes necessary sealing components for a leak-free installation .

Compatibility

This turbo water pipe assembly is a direct replacement for the following applications:

Compatible Excavator Models

• Kobelco SK200-8 (Serial No. YN11-45001~) 

• Kobelco SK210LC-8 (Serial No. YQ11-06001~) 

Engine Compatibility

• Hino J05E-TA (4-cylinder, 5.123L, water-cooled, direct injection, turbocharged with intercooler) 

Additional Engine Applications (Verify Fitment)

• Hino J05E-TH (similar turbocharger cooling system configuration) 

Part Number: VH166913730A

Also Known As: Turbo Water Pipe, Turbocharger Coolant Pipe, Turbo Water Tube, Coolant Supply Pipe, Turbocharger Water Inlet/Outlet Pipe, Coolant Pipe Sub Assembly

Please verify your machine’s serial number and compare with your original part before purchasing.

How the Turbocharger Water Pipe Works

The VH166913730A is part of the J05E-TA engine’s turbocharger cooling circuit:

Turbocharger Cooling System Overview

The Hino J05E-TA engine uses engine coolant to cool the turbocharger. Coolant circulates from the engine block through the turbo water pipe, into the turbocharger’s water jacket, and back to the cooling system.

Related Components

Typical components in the turbocharger cooling circuit include:

• Water Pipe, Turbocharger In (137) – The supply side pipe 

• Water Pipe, Turbocharger Out (115) – The return side pipe 

• Gaskets and Seals – For leak-free connections 

• Brackets and Bolts – For secure mounting 

Service Notes

According to the Hino workshop manual, when removing or installing turbocharger coolant pipes:

• Coolant must be drained before disconnecting pipes 

• Oil holes, water holes, and cylinder block holes should be sealed to prevent dirt entry 

• New soft washers, O-rings, and gaskets should always be used 

• Sealant should not be used at installation surfaces to prevent clogging 

Signs Your Turbo Water Pipe Needs Replacement

The turbo water pipe can fail due to corrosion, vibration fatigue, or impact damage. Replace your VH166913730A pipe if you observe:

1. Coolant Leakage: Visible coolant dripping from the turbocharger area or along the pipe routing path. The turbocharger coolant pipe is a common source of coolant leaks on J05E engines .

2. Low Coolant Level: The engine coolant reservoir requires frequent refilling without visible external leaks elsewhere.

3. Engine Overheating: The engine runs hotter than normal or the temperature gauge reads high, indicating cooling system inefficiency.

4. Turbocharger Performance Issues: Reduced engine power or boost pressure, potentially related to turbocharger cooling problems.

5. Visible Pipe Damage: Cracks, corrosion, rust perforation, or physical damage to the pipe .

6. Coolant Contamination: Oil in the coolant or coolant in the oil may indicate a failed turbocharger seal, requiring pipe removal and inspection .

7. During Turbocharger Service: When servicing or replacing the turbocharger, the coolant pipes should be inspected and replaced if worn or corroded .

8. During Major Engine Overhaul: Any comprehensive engine rebuild should include replacement of coolant pipes in the turbocharger circuit.

Benefits

Why choose our VH166913730A Turbo Water Pipe Sub Assy for your J05E-TA engine?

1. Prevents Turbocharger Overheating: Proper coolant flow through the turbocharger is essential for preventing heat-related bearing failure.

2. Eliminates Coolant Leaks: Replaces a corroded or cracked pipe to stop coolant loss and potential engine overheating.

3. Restores Cooling System Integrity: A new pipe with fresh seals ensures leak-free operation of the turbocharger cooling circuit.

4. Essential for Turbocharger Service: When removing or replacing the turbocharger, new coolant pipes and seals are recommended for reliable reassembly .

5. Protects the Engine: Prevents coolant loss that could lead to engine overheating and serious internal damage.

6. Direct OEM Fit: Manufactured to match the exact routing path and connection specifications of the J05E-TA engine.

7. Complete Assembly: Includes pipe and essential mounting brackets for straightforward installation.

8. OEM-Quality Assurance: Manufactured to meet or exceed original equipment standards for durability and fitment.

Installation Tips

• Professional Installation Recommended: Turbo water pipe replacement requires draining engine coolant and working in the turbocharger area. Professional installation is strongly recommended.

• Drain Coolant: Before beginning work, drain the engine coolant to a clean container for reuse or proper disposal .

• Clean the Area: Thoroughly clean the area around the turbocharger before disconnecting pipes to prevent dirt from entering the cooling system .

• Seal Open Holes: After disconnecting pipes, seal oil holes, water holes, and cylinder block holes to prevent entry of dirt or foreign matter .

• Use New Seals: Always use new soft washers, O-rings, and gaskets when installing the replacement pipe .

• Do Not Use Sealant: Do not use sealant at the installation surface of coolant pipes to prevent clogging and potential damage .

• Check for Correct Routing: Verify the pipe follows the factory routing path, keeping clear of moving parts and hot exhaust components.

• Inspect Related Components: While the pipe is removed, inspect the turbocharger and other cooling system components for signs of wear or damage .

• Refill and Bleed: After installation, refill the cooling system and properly bleed air from the coolant circuit.

• Check for Leaks: After running the engine to operating temperature, inspect all connections for leaks.

Why Choose Our VH166913730A Turbo Water Pipe?

We understand that the Hino J05E-TA engine in your Kobelco SK200-8 or SK210LC-8 excavator relies on proper cooling system function for reliable turbocharger operation. The turbo water pipe is a critical component that ensures coolant circulates through the turbocharger to prevent overheating and premature bearing failure.

Our VH166913730A Turbo Water Pipe Sub Assy is manufactured to meet OEM specifications, ensuring the correct pipe diameter, bend angles, and mounting bracket locations for the J05E-TA engine. Whether you are addressing a coolant leak, performing turbocharger service, or completing a major engine overhaul, this direct-fit pipe provides the reliable coolant flow your J05E-TA engine requires.

Technical Specifications

Order your VH166913730A J05E Turbo Water Pipe Sub Assy today and ensure reliable turbocharger cooling for your Kobelco SK200-8 or SK210LC-8 excavator. In stock and ready for immediate worldwide shipping. Bulk pricing available for fleet maintenance.