BorgWarner 53049880025 Turbocharger - Left

BorgWarner Turbocharger for Audi A4 Quattro

The BorgWarner 53049880025 turbocharger is an OE-quality replacement built for the 2000 Audi A4 Quattro, left side, with OE numbers 078145703M and 078145703MX. BorgWarner supplies turbochargers to many OEM vehicle brands, and this aftermarket unit follows that same service-part approach for import applications.

Key Features

• Turbocharger assembly for the left side application on the 2000 Audi A4 Quattro
• Coolant-cooled center housing for thermal management
• Journal bearing design for proven turbo support
• OE-quality aftermarket replacement from BorgWarner
• Part number 53049880025 for direct catalog identification
• Cross-references OE numbers 078145703M and 078145703MX

Detailed Description

This BorgWarner turbocharger, part number 53049880025, is built for the 2000 Audi A4 Quattro, left position, and matches OE references 078145703M and 078145703MX. It uses a coolant-cooled center housing and a journal bearing layout, helping support stable turbo operation in a factory-style replacement application. For buyers searching for a 2000 Audi A4 Quattro left turbocharger or BorgWarner 53049880025 replacement, this unit provides a direct-fit service option for the listed vehicle.

BorgWarner is known for supplying turbochargers across a wide range of OEM passenger vehicles, and its aftermarket service line brings that OE-focused engineering to import applications. This part cross-references OE numbers 078145703M and 078145703MX for the same application.

What This Turbocharger Helps Address

• Loss of boost pressure from a worn turbocharger
• Excessive shaft play or bearing wear
• Coolant-related turbo housing heat management concerns
• Reduced engine response caused by turbocharger failure
• OE replacement needs for a 2000 Audi A4 Quattro left turbo

Installation Notes and Tips

Verify the OE number, left-side position, and vehicle application before installation. Inspect oil and coolant supply lines, seals, and related intake components during replacement to help prevent repeat failure. Because mounting hardware, gaskets, seals, and brackets are not included, source any required service parts separately before beginning the job.

Quality Assurance

BorgWarner manufactures turbochargers for OEM and aftermarket service use, and this part is built to OE-quality standards for the listed Audi application. Confirm fitment against the vehicle identification and OE reference numbers before installation.