The turbo intercooler boost hose pipe (OE 39155303 / 39098774) is a direct-fit charge-air hose designed for the Vauxhall Insignia B (Mk II) 2.0 D turbodiesel (engine codes B20DTH / D20DTH). This robust hose connects the intercooler outlet to the engine’s intake system, ensuring that cool compressed air from the intercooler reaches the engine efficiently. When the original boost pipe becomes cracked, split or porous due to heat and pressure, your engine can experience reduced boost pressure, loss of power and slower acceleration — problems this quality boost hose replacement helps eliminate by maintaining proper airflow through the turbo system.

OEM Number: 39155303, 39098774, 461071664

Fitting Position : Upper, Charge Air Cooler

Quantity : 1

Make	Model	Variant	Type	Engine	Chassis	Year
Opel	Insignia	Diesel Estate	2.0 CDTi	1956cc 125KW 170HP B 20 DTH;D 20 DTH	FWD B Z18	2017-2024
Opel	Insignia	Diesel Estate	2.0 CDTi	1956cc 125KW 170HP D 20 DTH	FWD B Z18	2017-2024
Opel	Insignia	Diesel Estate	2.0 CDTi 4x4	1956cc 125KW 170HP D 20 DTH	AWD B Z18	2017-2024
Opel	Insignia	Diesel Estate	2.0 CDTi 4x4	1956cc 125KW 170HP D 20 DTH	AWD B Z18	2017-2024
Opel	Insignia	Diesel Hatch	2.0 CDTi	1956cc 125KW 170HP B 20 DTH;D 20 DTH	FWD B Z18	2017-2024
Opel	Insignia	Diesel Hatch	2.0 CDTi 4x4	1956cc 125KW 170HP D 20 DTH	AWD B Z18	2017-2024
Vauxhall	Insignia	Diesel Estate	2.0 D	1956cc 125KW 170HP B 20 DTH;D 20 DTH	FWD Mk II (B) Z18	2017-2024
Vauxhall	Insignia	Diesel Estate	2.0 D	1956cc 125KW 170HP D 20 DTH	FWD Mk II (B) Z18	2017-2024
Vauxhall	Insignia	Diesel Estate	2.0 D 4x4	1956cc 125KW 170HP B 20 DTH;D 20 DTH	AWD Mk II (B) Z18	2017-2024
Vauxhall	Insignia	Diesel Hatch	2.0 D	1956cc 125KW 170HP B 20 DTH;D 20 DTH	FWD Mk II (B) Z18	2017-2024
Make	Model	Variant	Type	Engine	Chassis	Year

Our SKU: TVAU39155303_94 

All our Turbo Intercooler Boost Hose Pipe For Vauxhall Insignia B 2.0d 39155303 39098774 are OEM quality and reliable after market car parts. This Turbo Intercooler Boost Hose Pipe For Vauxhall Insignia B 2.0d 39155303 39098774 is specifically compatible with Opel: Insignia, Vauxhall: Insignia, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

✔ Direct OE-Matched Replacement
Engineered to match Vauxhall part numbers 39155303 and 39098774 for perfect fitment on Insignia B 2.0 D models without the need for modifications.

✔ Restores Turbo Boost & Airflow
Maintains correct pressure delivery between the intercooler and intake, helping the turbo system operate as designed and restoring throttle response and engine performance.

✔ Durable Construction for Turbo Systems
Made from reinforced materials to withstand heat, pressure and engine bay vibration common in modern diesel turbo engines.

✔ Improves Driving Performance
Replacing a worn or leaking intercooler hose can reduce turbo lag, avoid boost loss and ensure smooth acceleration under load — essential characteristics for normal daily driving and towing scenarios.

✔ Compatible With Multiple Insignia Variants
Suitable for Vauxhall Insignia B Mk II (2017 →) vehicles with the 2.0 D turbo engine — including hatchback, Sports Tourer and Grand Sport body styles (engine codes B20DTH/D20DTH).

Frequently Asked Questions

Q: What does the turbo intercooler boost hose pipe do?
This hose pipe carries compressed, cooled air from the intercooler to the engine’s intake, helping the turbo system supply denser air for combustion — which improves power and efficiency.

Q: What are signs the intercooler hose needs replacing?
Common symptoms include loss of turbo boost, sluggish throttle response, hissing or whistling noises under acceleration, increased fuel consumption or a noticeable drop in performance.

Q: Is this part a direct fit?
Yes — this hose matches OE numbers 39155303 and 39098774 and is designed for a direct-fit installation on compatible 2.0 D Insignia models.

Q: Will replacing this hose improve performance?
If your vehicle shows signs of turbo boost loss due to leaks or cracked hoses, replacing with this OE-compatible pipe often restores correct boost pressure and engine responsiveness.