Turbocharger K03 53039880055 4432306 931619

Turbocharger K03 53039880055 / 4432306 / 931619 – High-Performance Replacement for Renault Master II 2.5 DCI G9U (73/84kW, 100/114HP)

The K03 turbocharger with part numbers 53039880055, 4432306, and 931619 is a high-quality, direct-fit replacement for the Renault Master II 2.5 DCI, 

equipped with the G9U diesel engine, producing 73 kW (100 HP) or 84 kW (114 HP). This turbocharger is engineered to meet or exceed OEM standards, 

ensuring reliable performance, improved engine efficiency, and extended durability.

🔧 Product Specifications:

Turbo Model: K03

Part Numbers: 5303-988-0055 / 4432306 / 931619

OEM Reference: Garrett replacement turbo

Engine Type: G9U (G9U720, G9U724, G9U650, G9U754)

Application: Renault Master II 2.5 DCI (2001–2010)

Power Output: 73 kW / 100 HP or 84 kW / 114 HP

Fuel Type: Diesel

Cooling Type: Oil-cooled

Actuator: Pneumatic wastegate actuator

Turbo Type: Wastegate controlled single-scroll turbocharger

🚚 Vehicle Applications:

This turbocharger is primarily used in the Renault Master II, but also applies to other models using the same G9U diesel engine, such as:

Renault Master II 2.5 DCI (2001–2010)

Renault Trafic 2.5 DCI

Opel Movano 2.5 CDTI

Nissan Interstar 2.5 DCI

Please confirm part numbers and vehicle compatibility using the VIN code or consult a qualified mechanic.

✅ Key Features & Benefits:

1. OEM-Equivalent Performance

This K03 turbo is engineered to meet the exact specifications of the original unit. Its build quality ensures seamless integration into the engine 

system with no modifications needed. Performance and boost characteristics match the OEM setup.

2. Improved Engine Efficiency

The turbocharger restores lost power due to a worn or failing turbo, ensuring optimal air-fuel combustion and improving engine responsiveness. 

You'll notice smoother acceleration, better throttle response, and overall enhanced drivability.

3. Fuel Economy and Emissions

A properly functioning turbo helps your engine run more efficiently, often leading to reduced fuel consumption and lower emissions, 

which is especially important for commercial vehicles subject to strict emission regulations.

4. Durability and Heat Resistance

The turbo components are made from high-grade heat-resistant alloys, capable of withstanding the high thermal and mechanical stresses found in diesel engines. 

Precision-balanced for extended lifespan and stable performance even under heavy-duty operation.

5. Cost-Effective Repair Solution

Instead of purchasing a new engine or costly OEM turbo, this K03 turbocharger provides a more affordable yet reliable alternative, 

particularly for aging commercial vehicles like the Renault Master II.

⚙️ Installation Tips:

Always replace oil feed and return lines when installing a new turbo to prevent oil contamination.

Ensure proper lubrication before first start (prime the turbo with fresh engine oil).

Check and clean the intercooler, intake system, and exhaust pathways for any debris or oil buildup.

After installation, allow the engine to idle for several minutes on the first start to protect the turbo’s bearings.

Installation should be performed by a certified technician for best results and to validate any warranty coverage.

📦 Package Includes:

1 x Complete K03 Turbocharger Unit

Pre-installed Wastegate Actuator

Balanced and ready for installation

Optional Gasket Kit (available upon request or included in some versions)

🛡️ Warranty & Support:

We offer a 12-month limited warranty against manufacturing defects. Our technical team is available for installation support and troubleshooting. 

We are committed to providing high-quality turbocharger solutions and excellent after-sales service.

📌 Conclusion:

Whether you're restoring a work van or maintaining a fleet, the Turbo K03 53039880055 / 4432306 / 931619 is a smart choice for reliable diesel performance. 

Built with precision and designed for durability, this turbocharger brings new life to your Renault Master II 2.5 DCI and keeps your engine running at peak efficiency.

Order now and get your vehicle back on the road with confidence!