BorgWarner 53037110000 K03 K04 Turbo Overhaul Rebuild Kit for VW Audi Skoda Seat

Vehicle Fitment

• Compatible with all K03 and K04 single-feed BorgWarner turbochargers used across VW, Audi, Seat, and Skoda platforms - see Fitment Notes for turbo part number reference list

Fitment Notes

• This is a universal overhaul kit for single-feed K03 and K04 BorgWarner turbochargers - not vehicle-specific
• Verify compatibility by matching your turbo's part number (e.g., 53039700xxx / 53039880xxx / 53049700xxx / 53049880xxx) to the supported turbo list
• Compatible turbo numbers include (but are not limited to): 53039700003, 53039700005, 53039700006, 53039700011, 53039700013, 53039700019, 53039700022, 53039700025, 53039700029, 53039700044, 53039700045, 53039700049, 53039700060, 53039700070, 53039700077, 53039700105, 53039700106, 53049700002, 53049700003, 53049700007, 53049700011, 53049700012, 53049700015 and their 880/988 equivalents
• Does NOT fit twin-feed K03/K04 turbochargers - confirm your bearing housing oil feed type before ordering
• Cross-reference: 5303-711-0000 / 5303 711 0000

Features

• Genuine OEM BorgWarner rebuild kit - same part supplied to Audi, VW, Seat, and Skoda dealers
• Complete all-in-one overhaul solution covering bearings, seals, and all internal wear components
• Restores turbo to factory specification performance and oil sealing
• Precision-spec components machined to OE tolerances for proper shaft clearance and balance
• Eliminates oil burning, shaft play, and boost loss caused by worn internal components
• Cost-effective rebuild alternative to full turbo replacement
• Compatible with a wide range of K03 and K04 single-feed turbo applications across the VAG platform
• Supplied new in genuine BorgWarner packaging

Specifications

• Part Number: 53037110000 (5303-711-0000)
• Kit Type: Single-Feed K03 / K04 Turbo Overhaul / Rebuild Kit
• Brand: BorgWarner (3K - Schwitzer)
• Bearing Type: Single-feed journal bearing system
• Thrust Bearing: 360° Standard Thrust Bearing
• Seal Type: Piston Ring (front and rear)
• Application: Universal fit for compatible single-feed K03/K04 BorgWarner units

Included Components

• 1x Journal Bearing (Single Feed)
• 1x 360° Thrust Bearing (Standard)
• 1x Front Oil Seal (Piston Ring)
• 1x Rear Oil Seal (Piston Ring)
• 1x Anti-Rotation Plate
• 1x Anti-Rotation Plate Retaining Clip
• 1x Journal Circlip
• 1x Bearing Housing O-Ring
• 1x Oil Feed Copper Washer
• 1x Shaft Nut (left-hand thread)

Product Description

The BorgWarner 53037110000 is a genuine OEM overhaul kit designed to fully rebuild single-feed K03 and K04 turbochargers used across a wide range of VW Group vehicles including Volkswagen, Audi, Seat, and Skoda models. When a turbo begins showing symptoms such as oil burning, excessive shaft play, loss of boost pressure, or unusual noise, this kit provides every internal wear component needed to restore it to factory specification without replacing the entire turbocharger assembly.

Each kit includes all critical rotating and sealing components - journal bearing, thrust bearing, front and rear piston ring seals, O-ring, circlip, anti-rotation plate, and shaft nut - all manufactured to BorgWarner OE tolerances. This kit is for single-feed bearing housing turbochargers only. Before ordering, confirm your turbo's part number and bearing housing oil feed type to ensure compatibility. Professional installation with proper pre-lubrication and turbo balancing post-rebuild is strongly recommended.