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Volvo S80 Turbocharger Mounting Kits

Volvo S80 Turbocharger mounting kits

Starting at low prices, AutoBuffy stocks multiple turbocharger mounting kits from top OE-quality brands for the Volvo S80. A turbocharger mounting kit contains the hardware — studs, nuts, gaskets, and flanges — that secures the turbo to the exhaust manifold and oil feed lines. When these components fail, exhaust leaks, oil leaks, and boost loss follow quickly, putting the turbocharger itself at risk.

Signs your Volvo S80 needs a new turbocharger mounting kit

  • Hissing or whistling noise from the engine bay under boost, indicating an exhaust leak at the turbo flange
  • Visible oil seeping around the turbo-to-manifold connection or oil feed line fittings
  • Noticeable drop in boost pressure or sluggish acceleration under load
  • Burnt oil smell from the engine bay, caused by oil dripping onto hot exhaust surfaces near the turbo mount
  • Check engine light with boost-related or exhaust pressure fault codes
  • Rattling or vibration felt at the turbo when the engine is running, pointing to loose or broken mounting studs

Which turbocharger mounting kit should you buy for your Volvo S80?

The most important decision is whether you need a full hardware-and-gasket kit or a gaskets-only set, and whether the grade of hardware matches your use case. Turbocharged engines run extreme heat cycles that cause standard hardware to seize or stretch, so material quality matters more here than on most other fasteners.

OEM-equivalent complete kit
Best for
Daily drivers and stock replacements where fit and long-term reliability are the priority
What you get
Matched studs, nuts, and multi-layer steel or composite gaskets engineered to factory specifications
Performance-grade hardware kit
Best for
Modified engines or vehicles running elevated boost levels beyond factory output
What you get
High-alloy studs and locking nuts rated for higher clamping load and thermal fatigue resistance
Gaskets-only kit
Best for
Rebuilds where original hardware is undamaged and only sealing surfaces need to be renewed
What you get
Turbo inlet, outlet, and oil feed gaskets without fasteners, reducing cost when hardware is reusable
Full turbo installation kit
Best for
Complete turbo replacements or rebuilds where all contact hardware is being refreshed at once
What you get
Comprehensive set including exhaust flange gaskets, oil feed and return line gaskets, V-band clamps, and all fasteners in one package

Replacing a turbocharger mounting kit on a Volvo S80

Advanced⏱ 2–4 hoursBreaker bar and socket setStud extractor setTorque wrenchPenetrating oilWire brush and thread chaser tap set

The most time-consuming part of this job is removing corroded or seized studs from the exhaust manifold without snapping them — applying penetrating oil and allowing soak time before attempting removal is essential. Once all old hardware is out, clean the mating surfaces thoroughly, chase the threads, and install new studs and gaskets before torquing fasteners in a cross pattern to the manufacturer's specification. Reinstalling coolant and oil lines before starting the engine and allowing idle time before driving under load gives the new gaskets time to seat properly.

Frequently asked questions

How much does it cost to replace turbocharger mounting kits on a Volvo S80?
Parts start at low prices for a Volvo S80 turbocharger mounting kit at AutoBuffy. A shop will add one to three hours of labor depending on turbo accessibility on your specific engine layout. Doing the job yourself keeps the total cost close to the parts price alone.
Can I reuse my old turbo mounting studs and nuts when installing a new turbocharger on a Volvo S80?
Reusing old hardware is not recommended. Turbo studs are exposed to extreme heat cycles that cause metal fatigue, corrosion, and thread distortion over time. A stud that appears intact can snap during reinstallation or fail under boost shortly after. Replacing all fasteners with the new turbo eliminates this risk.
What causes turbocharger mounting hardware to fail on a Volvo S80?
Heat cycling is the primary cause. The repeated expansion and contraction of metal between cold starts and full operating temperature gradually loosens fasteners and degrades gaskets. Oil contamination, detonation, and over-boost events accelerate the process. Hardware near the exhaust manifold is especially vulnerable due to sustained high temperatures.
Do I need to replace the turbo oil feed gasket when replacing the turbocharger mounting kit on a Volvo S80?
Yes. The oil feed and return line gaskets should always be replaced at the same time as the main mounting hardware. These gaskets seal pressurized oil passages feeding the turbo's center cartridge. A leaking oil feed gasket starves the turbo of lubrication, leading to bearing failure even on a brand-new unit.
How long do turbocharger mounting kits last on a Volvo S80?
Mounting hardware typically outlasts one full turbocharger service interval when the engine is stock and properly maintained. However, it is standard practice to replace the entire kit any time the turbocharger is removed, since the cost of the hardware is low relative to the labor already invested in the job.
Will a loose turbocharger mounting kit damage the turbo on a Volvo S80?
Yes, and quickly. A loose flange connection creates an exhaust leak that disrupts the pressure differential driving the turbine wheel, reducing efficiency immediately. More critically, a loose oil feed fitting restricts lubrication to the turbo bearings, causing accelerated wear or catastrophic failure within a short period of sustained operation.

More parts for your Volvo S80

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Turbocharger mounting kits for other Volvo models

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