TOYOTA 17173-51020 Exhaust Manifold Gasket

The genuine TOYOTA 17173-51020 exhaust manifold gasket (GASKET, EXHAUST MANIFOLD TO HEAD) is a precision component responsible for providing a hermetic gas seal between the cylinder head and the exhaust manifold in models equipped with the 4.5-litre D-4D (1VD-FTV) V8 diesel engine. Its design resists extreme exhaust gas temperatures, mechanical vibrations, and stresses resulting from thermal expansion, preventing leaks and pressure loss.

Function and Technical Significance:

The primary role of the exhaust manifold gasket is to ensure the leak-free transfer of exhaust gases from the cylinders to the exhaust system and the turbocharger. Wear or burnout of this component can lead to a drop in boost pressure, loss of engine power, soot accumulation in the engine compartment, and exhaust odors. The most common indicators of gasket failure include sharp chirping or hissing exhaust noises under engine load, as well as black soot deposits appearing on the mating surfaces between the cylinder head and the manifold.

Technical Specifications:

• Genuine Part: Toyota OEM (Original Equipment Manufacturer)
• Part Designation: Exhaust manifold gasket (between cylinder head and manifold)
• Installation Location / Position: Exhaust manifold – cylinder head interface
• Compatible Engine Code: 1VD-FTV (4.5 D-4D)
• Material: High heat-resistant, multi-layer metal construction

Compatible Vehicles:

• Toyota Land Cruiser 200 (J200) 4.5 D-4D [2007 - ...] (VDJ200, 1VDFTV)
• Toyota Land Cruiser 70 (J70) 4.5 D-4D [2007 - ...] (VDJ70, 1VDFTV)
• Toyota Lexus LX (J200) 4.5 D-4D [2015 - ...] (VDJ201, 1VDFTV)