VW Volkswagen Polo Mk5 Seat Ibiza 4 1.4 TDI Bare Engine CUSA 75HP 65k, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

VW Volkswagen Polo Mk5 Seat Ibiza 4 1.4 TDI Bare Engine CUSA 75HP 65k, WARRANTY is a used, factory-original engine block from the TDI family, designed for modern, urban models of the Volkswagen group. It is a solution for users looking for a technically compatible, original powertrain component that allows for professional repair or engine replacement. By maintaining the specific construction of the block, it serves as a solid base for further assembly of accessories.

Specifications and technical data

• SKU: 04B100090
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04B100090
• Substitutable numbers: 04B100090, 04B 100 090, 04B100090X, 04B 100 090 X
• Fuel type: Diesel
• Number of cylinders: 3
• Category: Engines
• Engine code: CUSA
• Mileage: 65 000

Technical characteristics of the CUSA 1.4 TDI engine

The presented block belongs to the Engines category and represents a modern diesel construction from the TDI family. The unit with the CUSA code was designed as a compact, economical powertrain for city and suburban cars, providing a favorable balance between fuel consumption and performance. The cylinder layout and operating parameters promote smooth, economical driving while maintaining adequate dynamics in typical road conditions.

The engine runs on Diesel fuel, which translates into the torque curve characteristic of TDI engines – available in the lower RPM range. The use of three cylinders has allowed for reduced unit weight and improved efficiency, while maintaining appropriate refinement for the city car segment. This configuration is particularly beneficial for drivers who expect low fuel consumption and predictable drive characteristics.

Application in VW Polo Mk5 and Seat Ibiza 4

The offered bare engine block is intended for installation in VW Polo Mk5 and Seat Ibiza 4 models equipped with the 1.4 TDI 75HP unit. This means it is possible to use the existing accessories in the vehicle (e.g., injection system, turbocharger, manifolds, auxiliary equipment) and transfer them to a proven engine base. This approach is often chosen by workshops that want to maintain the original vehicle equipment configuration while replacing a key powertrain component.

The engine with the CUSA code is structurally matched to the platform used in the Polo Mk5 and Ibiza 4, which facilitates installation in the engine bay and integration with the existing electrical installation and control system. As a result, the workshop can focus on the correct transfer of accessories and ECU configuration without the need for unusual mechanical modifications.

Condition, mileage, and benefits of choosing a used block

The unit is offered as a used engine block, which in practice represents an attractive compromise between repair costs and maintaining the manufacturer's original design. The declared mileage allows for assessing the degree of wear and planning further service activities, such as replacing consumables or seals during installation. For many workshops, this is a favorable moment to perform preventive work that will extend the unit's service life after installation.

Choosing a used, original block instead of rebuilding a heavily worn engine often shortens repair time and reduces the risk of problems resulting from the inconsistent service history of individual components. You receive a complete structural base on which a functional powertrain can be built, using the manufacturer's known and proven design.

Why it is worth choosing an original used engine

The original block from the TDI family ensures factory-fit compatibility with the powertrain of VW Polo Mk5 and Seat Ibiza 4 vehicles, which is important for both durability and proper cooperation with the control electronics. Using a unit consistent with the engine code minimizes the risk of adaptation problems, ECU errors, or improper operation of accessories.

If you want to better understand how to safely select a used engine by VIN or OEM number, what are the common myths about such units, and what are the real costs compared to regeneration, check out our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical supplement to knowledge for mechanics and conscious users planning a powertrain replacement.

Expanding work in the engine area

If you are planning a comprehensive repair or modernization of the engine area in your Volkswagen and need other components from the same group, such as additional blocks or cylinder heads, check the available parts in the Volkswagen Engines category.

When replacing the block, it is worth simultaneously verifying the condition of the accessories, cooling system, lubrication system, and drivetrain components. This approach helps reduce the risk of future service downtime and ensures a consistent, technically correct modernization of the entire powertrain.