1-13743036-1 Isuzu 6WG1 / 6WF1 Engine Thermostat Rubber Gasket for Hitachi / Sumitomo / Sany Excavator

Product Overview

1-13743036-1 is a genuine-quality thermostat rubber gasket (thermostat seal / rubber sealing ring) designed for Isuzu 6WG1 and 6WF1 series engines. This gasket is installed on the sealing surface between the thermostat housing and the engine block, sealing the coolant passage to prevent coolant leakage from the thermostat mounting point. It is an important sealing component of the engine cooling system.

This gasket is widely used in HITACHI, SUMITOMO, and SANY excavators and other construction equipment. In high-temperature, high-pressure operating environments, the thermostat gasket is subjected to continuous coolant pressure and thermal loads. This gasket is manufactured with premium high-temperature and oil-resistant rubber materials specifically for such demanding conditions, ensuring long-term reliable thermostat performance.

Product Specifications

Compatible Models

This thermostat gasket is compatible with equipment powered by Isuzu 6WG1/6WF1 series engines, including:

HITACHI

• ZX450-3, ZX450-5

• ZX470-3, ZX470-5

• ZX650, ZX650-3

• ZX670-5G

• ZX850-3, ZX850-5

• ZX870-3G

SUMITOMO

• SH450-3B, SH460

SANY

• SY500 series

Other Equipment

• Excavators and other construction machinery equipped with 6WG1/6WF1 engines

Note: The above is a partial list of compatible models. Please verify against your engine model (6WG1/6WF1). Confirm that your old thermostat gasket part number matches before installation.

Key Features

• OEM Quality: Manufactured to Isuzu technical standards for precise compatibility with 6WG1/6WF1 engines.

• Reliable Sealing: Effectively seals the coolant passage between the thermostat and engine block, preventing coolant leakage.

• Heat & Oil Resistant: Constructed from premium high-temperature and oil-resistant rubber materials to withstand engine heat and coolant chemicals.

• Precision Manufactured: Manufactured with tight tolerances for a perfect fit with the thermostat and engine block.

• Direct Replacement: Standard OEM specification for hassle-free, bolt-on installation.

• Broad Application: Fits HITACHI, SUMITOMO, SANY, and many other mainstream excavator brands.

Installation Tips

• Verify that the new gasket matches the old unit (part number 1-13743036-1) before installation.

• Thoroughly clean the sealing surfaces of the thermostat housing and engine block, removing all oil, debris, and old gasket residue.

• Ensure correct orientation of the gasket during installation for proper alignment.

• Tighten the thermostat mounting bolts to the torque specifications recommended by the engine manufacturer.

• After installation, refill coolant, start the engine, and check for any coolant leaks.

After-Sales Support

• Genuine product, sourced from Japan.

• Contact your supplier for any quality concerns.