Turbo Wastegate Actuator for Audi Volkswagen Seat Skoda GT1749V 434855-0015 Replacement

The GT1749V Turbo Wastegate Actuator for Audi, VW, Seat and Skoda is a precise, high-quality replacement designed to restore optimal boost control on 1.9 TDI engines. Built to fit a wide range of turbocharged applications, this actuator helps maintain consistent boost levels, prevents overboost, and supports reliable engine performance across a variety of models. It’s a ready-to-install upgrade for drivers seeking to restore factory-like responsiveness without expensive dealer replacements.

Crafted from lightweight aluminium with a durable silver finish, this actuator combines robust construction with compact dimensions to fit tightly in the turbo housing. It is a direct replacement for GT1749V units and is associated with OE part numbers 434855-0004/15/20, along with reference numbers such as 038253019A/AV/AX and related 03G253016K variants. The package is designed for straightforward installation on compatible 1.9 TDI platforms, helping you regain precise wastegate actuation and boost control.

Applications cover a broad spectrum of popular models and years, including various Audi, VW, Seat and Skoda 1.9 TDI vehicles. This actuator is compatible with models listed under 97/08-03/05 Audi A3 1.9 TDI 8L1, 01/02-10/09 VW New Beetle 1.9 TDI, 00/04-10/03 VW Sharan 1.9 TDI, 00/06-10/03 Seat Alhambra 1.9 TDi, 00/01-07/12 Skoda Fabia I 1.9 TDi, and many more within the GT1749V family. OE and reference numbers provided in the listing help verify compatibility with your exact VIN and engine code.

Specifications at a glance: lightweight aluminium construction, silver color, 7.6 cm length, 5.6 cm width, 0.5 kg weight. Country of origin: China. Interchange part numbers include 434855-0015, with OE references 434855-0004/15/20. This listing is 100% brand new, never used or installed, and ready to perform like a fresh factory replacement.

Benefits & Tips

• Restore proper boost control to your turbo system, reducing lag and preventing mis-timed boost spikes on compatible 1.9 TDI engines.
• Choose a reliable replacement that aligns with OE part numbers and VW/Audi/Seat/Skoda references to minimize installation issues and ECU recalibration needs.
• Plan professional installation and double-check compatibility with your exact vehicle year, model, and engine code to ensure a seamless fit.

Product specifications

• Brand: PQY
• Product type: GT1749V Turbo Wastegate Actuator
• Compatible models: Audi, VW, Seat, Skoda 1.9 TDI (various years and trims listed in the application notes)
• OE part numbers: 434855-0004/15/20
• Interchange part number: 434855-0015
• Reference numbers: 038253019A/AV/AX, 03G253016K/KV/KX
• Material: Lightweight aluminium
• Color: Silver
• Dimensions: 7.6 cm (L) x 5.6 cm (W)
• Weight: 0.5 kg
• Origin: Mainland China
• Package contents: 1x Turbocharger (100% Brand New Never Used Or Installed)

Package includes:

• 1x Turbocharger (100% Brand New Never Used Or Installed)

Warnings / Reminders

• Professional installation is recommended to ensure correct fitment and impulse line routing.
• Verify exact model fitment against your vehicle’s VIN and engine code before purchase.
• After installation, perform a proper boost calibration if required by your vehicle’s ECU.

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