Rotomaster K1030112N Turbocharger

Rotomaster New Turbocharger K1030112N

Restore boost response and engine efficiency with this Rotomaster new turbocharger, part number K1030112N. Built as a direct replacement for select Audi A4, Audi A4 Quattro, and Volkswagen Passat applications, it is engineered for OE fit and performance with oil-and-coolant cooling and a journal bearing design.

Key Features

• 100% new turbocharger construction with tested components
• Journal bearing design for OE-style operation
• Oil and coolant cooled turbocharger assembly
• Wastegate actuator included
• Supplied with gaskets, washers, studs, instruction sheets, and pre-lube syringe
• Meets or exceeds OE performance targets
• Direct-replacement design for select Audi and Volkswagen turbo applications

Product Details

Rotomaster’s New Turbocharger line is built for drivers who need a replacement turbo that matches factory fitment and performance expectations. This K1030112N unit is designed for 2000-2006 Audi A4, 2000-2005 Audi A4 Quattro, and 2000-2005 Volkswagen Passat applications, making it a strong match for buyers searching for a turbocharger for Audi A4 1.8T replacement or a Volkswagen Passat turbocharger direct fit. The package includes installation-related components and a pre-lube syringe to help protect the turbo during setup.

This part cross-references Audi 058145703JX and 058145703NX, and Volkswagen 058145703N for the same application.

Common Problems This Turbocharger Can Address

• Loss of engine power or slow acceleration
• Turbo noise caused by worn internal components
• Oil leakage from turbo seals related to wear or contamination
• Boost issues tied to damaged compressor or turbine wheels
• Replacement needs after foreign object damage in the intake or exhaust path

Installation Notes and Tips

• Change the engine oil and filter before installation.
• Follow the included installation guide for proper setup and warranty compliance.
• Inspect the air filter and clean the intake and exhaust system to reduce the risk of repeat damage.
• Allow the engine to cool before shutdown to help prevent oil coking in a hot turbocharger.
• Diagnose and correct the original failure cause before installing the new unit.

Quality Assurance

Rotomaster designs and tests these 100% new turbochargers to match OE fit and performance. The K1030112N turbocharger is built to meet federal emissions-related requirements where applicable and is intended as a direct replacement for the listed Audi A4, Audi A4 Quattro, and Volkswagen Passat applications.