Lexus LS400 Piston With Conrod Left N/S 1UZFE 8V 4.0 Petrol Engine 133015002002

Lexus LS400 Piston With Conrod Left N/S 1UZFE 8V 4.0 Petrol Engine is an original component from the Pistons and rings group, designed for use in a V8 petrol engine. This used piston with connecting rod provides a functional service solution for the 1UZFE unit, allowing for the restoration of proper cylinder operation on the left side without the need to purchase a completely new set.

Specifications and technical data

• SKU: 133015002002
• Mark: Lexus
• Condition: Used
• OEM Part Number: 133015002002
• Substitutable numbers: 133015002002
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Pistons & Rings

Purpose and function in the 1UZFE engine

The presented piston with connecting rod is a working component of the crank-piston system, responsible for converting the energy of petrol combustion into the rotational movement of the crankshaft. The component works with an eight-valve cylinder head, ensuring the correct operating geometry of the piston in the cylinder and stable guidance at high rotational speeds.

The placement on the left side facilitates the selection of parts during the repair of a specific cylinder bank in a V8 engine, which is important for the precise rebuilding of the power unit. By maintaining factory design parameters, the piston remains compatible with the standard Lexus LS400 engine equipment.

Benefits of using an original piston with connecting rod

Using an original element from the Pistons and rings group allows for maintaining the structural consistency of the power unit. In practice, this means:

• maintaining factory assembly clearances in the cylinder,
• proper cooperation with the standard gudgeon pin and connecting rod bearings,
• appropriate operating characteristics in a petrol engine,
• easier condition monitoring during assembly and potential machining.

For users who value durability and predictable performance of the power unit, it is important that the original piston with connecting rod maintains the design parameters specified by the vehicle manufacturer.

Selection, assembly, and service aspects

Before assembly, a standard workshop procedure is recommended: verification of the cylinder diameter, checking the ring end gap (if used separately), checking the connecting rod alignment, and the condition of the mating surfaces. A properly selected and installed piston with connecting rod helps reduce the risk of improper compression, excessive oil consumption, or vibrations resulting from mass discrepancies in the crank-piston system.

The element is intended for a petrol engine, so its geometry and mass are adapted to the operating characteristics of the 1UZFE unit, including the RPM range and loads typical for this design. Correct installation on the left cylinder bank is crucial for maintaining the balance of the entire V8 engine.

Condition and use in repairs

The used piston with connecting rod is particularly suitable for repairs where it is necessary to replace a single element in one cylinder, for example, after local mechanical damage or overheating. This allows for an economical rebuild of the power unit while maintaining compliance with factory specifications.

In combination with properly selected rings and appropriate cylinder bore machining, the component can contribute to stabilizing engine parameters, such as compression, oil consumption, and idle as well as under-load performance.

If you are planning a comprehensive repair or upgrade of the engine area in your Lexus and need other elements from the same group, such as pistons, rings, or complete repair kits, check the available parts in the Lexus Pistons and rings category.

For those interested in a broader approach to using second-hand parts in control systems and diagnostics, practical tips on selection by identification numbers, hardware and software compatibility, and assembly can be found in the article: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.