Growshine VW GROUP Garrett Turbocharger 03L253016T 775517-5002S | Original Performance

Need custom machining or special materials? We develop castings, forgings and CNC finished parts for turbocharger housings, compressor wheels, turbine shafts and more—small batch OK, OEM/ODM welcome.

Product Overview

03L253016T, 775517-5002S (also written as 7755175002S for search match) is a brand-new, genuine Garrett GTC1244MVZ variable-geometry turbocharger engineered for 1.6 TDI engines of the VW GROUP—commonly found in VW Golf, VW Polo, VW Caddy, Audi A3, SEAT Leon and Škoda Octavia. Growshine International exports this reference together with construction machinery parts, heavy-truck parts, tractor parts and passenger car parts to more than 60 countries.

Key Features & Benefits

• 100% authentic Garrett cartridge, actuator and VNT mechanism.

• Perfect fit for engine codes CAYB & CAYC 66-77 kW without modification.

• Variable nozzle turbine improves low-end torque and reduces fuel consumption.

• Supplied with pre-calibrated vacuum actuator for plug-and-play installation.

• 24-month unlimited mileage warranty when purchased through Growshine.

• Global courier options: DHL, FedEx, UPS, sea & rail for bulk orders.

Quick Specs

OEM Part numbers: 03L253016T, 03L253016TX, 775517-5002S, 7755175002S
   Engine: 1.6 TDI 4-cyl CAYB/CAYC
   Power: 90-105 PS (66-77 kW)
   Technology: VNT (Variable Nozzle Turbine), vacuum actuator
   Weight: ~8.0 kg
   Package: Foam-protected carton, Garrett hologram seal

Interchange & Related Numbers

Garrett 775517-0001, 775517-0002, 775517-5001S, 775517-9002S, BV39F0098, 54399700086, 54399880086, 03L253016TV, 03L253016TX, 03L253016A, 03L253016H, 03L253056D, 03L253056R. If you also need gaskets, banjo bolts or oil pipes, please check our Garrett catalogue or contact Growshine sales.

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Real-World Fault & Fix

Equipment: Caterpillar 345D excavator
   Fault: Low power, black smoke, boost pressure 35% below spec
   Diagnosis: VNT nozzle ring seized with carbon; actuator rod travel only 3 mm (spec 9 mm)
   Solution: Removed turbo, ultrasonic-cleaned nozzle ring, replaced 792430-0003 actuator, re-calibrated with MityVac. Test drive showed normal boost 1.85 bar, smoke<1 BSU. Saved customer USD 1,800 versus replacing complete CAT 295-9270 turbo.

Know Your Turbo

Variable-geometry turbos (VNT) adjust the angle of nozzle vanes to change exhaust gas speed onto the turbine wheel. At low rpm vanes close, gas speed increases and boost rises quickly; at high rpm vanes open to avoid over-boost. A faulty vnt mechanism or leaking vacuum capsule is the #1 cause of limp-home mode on 1.6 TDI engines. Always check actuator movement with a hand pump before replacing the entire unit.

Random Glossary (English)

• Compressor wheel

• Installed in the intake side of the turbo; converts shaft energy into boost air. Example: JCB 457/20230 wheel.

• Turbine shaft & wheel

• Driven by exhaust gases, located in the hot side housing. Example: Komatsu 6D125-PC400-8 shaft & wheel.

• Actuator

• Vacuum or electric servo that moves the VNT lever. Example: Garrett 794081-0176 actuator for John Deere 6068HF485 engine.

• Bearing housing

• Central hub containing journal bearings, oil galleries and water jackets. Example: BorgWarner 5439-970-0088 housing for Case IH 8240 combine.

• Nozzle ring assembly

• Ring of pivoting vanes that controls exhaust flow angle. Example: Schwitzer 5439-970-0086 ring for New Holland T7.270 tractor.

• Heat shield

• Stainless plate that protects compressor housing from radiation. Example: IHI RHF5 shield for Kubota V3800DT engine.

• Thrust bearing

• Takes axial load from compressor and turbine wheels. Example: Mitsubishi TD04 thrust bearing for Volvo FH-13 520 hp engine.

• Oil deflector

• Prevents oil pooling at turbine end. Example: Holset HE400VG deflector for DAF XF105 CF85 Euro 5.

• Wastegate

• Valve that bleeds excess exhaust to limit boost (not on VNT). Example: Toyota 1KD-FTV 17201-0L050 turbo wastegate for Hiace KDH201.

• Speed sensor

• Hall or inductive probe that reports turbo rpm to ECU. Example: Bosch Mahle 0 281 002 800 sensor on MAN TGX D26 engine.

Hot Searches

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