Rotomaster
Remanufactured Turbocharger

Rotomaster K8390124R Turbocharger

Brand Rotomaster K8390124R
Bearing Type Journal
E-Waste No
Material Steel; Aluminum
Mounting Bracket Included No
Mounting Hardware Included No
Package Contents Turbocharger; Gasket; Syringe; Instruction Sheet
Product Condition Remanufactured
Troubleshooting Tip A decrease in engine power may be your first indication your turbocharger is damaged or has failed.
Troubleshooting Tip Any nicks, scratches, or chips on either wheel are evidence foreign object damage caused by contaminants entering the airflow to or from the engine.
Troubleshooting Tip Axial end play of the wheels and shaft in and out greater than the thickness of a sheet of paper indicates a worn thrust bearing due to excessive exhaust backpressure.
Troubleshooting Tip Before a failed turbocharger is replaced the original cause of failure must be diagnosed and corrected to protect the new installation.
Troubleshooting Tip Common signs of wear indicating replacement may be required:
Troubleshooting Tip Worn engines with excessive blow by will result in crankcase pressurization, leading to oil leaking from the turbochargers internal seals. This may result in oil deposits in the intake manifold or smoke in the exhaust. This is not necessarily a sign of a failed turbocharger, but rather a sign that the engine needs to be rebuilt or replaced.
Turbocharger Cooling Method Oil
Wastegate Actuator Included Yes
Product line Remanufactured Turbocharger
Fits Volkswagen · 8 vehicles

Direct replacement. Designed and tested for OE fit and performance.

Remanufactured unit. Renewed bearings, seals, and mating surfaces for lasting operation.

Pre-lube syringe included. Helps protect the turbocharger during installation.

Cross-references Volkswagen 038253019SX and Volkswagen 7784450001 for the same application. See all 2.

$978.16Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $978.16
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Remanufactured Turbocharger for Volkswagen Diesel Applications

Restore boost response and engine efficiency with this Rotomaster remanufactured turbocharger, part number K8390124R. Built as a direct replacement for select Volkswagen Beetle, Golf, and Jetta models, it is designed to match original equipment fit and performance while supporting reliable air and fuel delivery.

Key Features

  • Remanufactured Rotomaster turbocharger for OE-style replacement
  • Fits 2004-2006 Volkswagen Beetle, 2004-2006 Volkswagen Golf, and 2004-2005 Volkswagen Jetta
  • Journal bearing design with oil cooling method
  • Wastegate actuator included
  • All rotating, journal, and thrust bearings and seals are replaced as required
  • Mating surfaces and passages are renewed as needed for longer service life
  • Wheels, shafts, and bores are measured to controlled tolerances
  • Package contents include turbocharger, gasket, syringe, and instruction sheet

Product Details

Rotomaster remanufactured turbochargers are built for drivers who need a direct-fit replacement that meets OE performance targets. This unit is engineered and tested for proper fit on Volkswagen Beetle, Golf, and Jetta diesel applications, with attention to bearing condition, sealing surfaces, and rotating assembly tolerances. Part number K8390124R is a practical choice when the original turbocharger shows wear, reduced boost, or contamination-related damage.

This part cross-references Volkswagen 038253019SX and 7784450001 for the same application.

What This Turbocharger Can Help Solve

  • Loss of engine power or slow turbo spool
  • Smoke from the exhaust caused by turbo seal wear or oil control issues
  • Oil leakage into the intake system from worn internal components
  • Boost problems related to damaged wheels, shafts, or bearings
  • Noise or imbalance from a worn turbocharger assembly

Installation Notes and Tips

Fits 2004-2006 Volkswagen Beetle, 2004-2006 Volkswagen Golf, and 2004-2005 Volkswagen Jetta. The notes for these applications specify that an engine oil and filter change is required for proper turbo function, and the installation guide should be followed closely. Before replacing the turbocharger, diagnose and correct the original cause of failure to protect the new unit. Clean the air and exhaust system, replace the air filter, and verify oil supply and return paths are free of contamination. The included pre-lube syringe helps protect the turbocharger during installation.

Quality Assurance

Rotomaster remanufactured turbochargers are designed and tested to meet OE fit and performance expectations and to comply with federal emissions regulations. Each unit is rebuilt with renewed bearings and seals as required, and critical rotating components are checked against controlled tolerances for dependable operation.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006VolkswagenBeetle1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2006VolkswagenGolf1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2005VolkswagenBeetle1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2005VolkswagenGolf1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2005VolkswagenJetta1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2004VolkswagenBeetle1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2004VolkswagenGolf1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
2004VolkswagenJetta1.9LL4N/AEngine oil and filter change required for proper turbo function; follow installation guide, coordinate availability with sales rep for special order, and avoid stocking PO to prevent voiding warranty.; Remanufactured Turbocharger
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Volkswagen — 038253019SXVolkswagen — 7784450001