Turner Motorsport Billet Oil Cooler Thermostat - F8X S55 (Stock Oil Cooler Lines)
Keep your S55 running cooler, longer. The factory oil cooler thermostat on the S55 waits until the oil reaches roughly 110°C (230°F) before sending it to the cooler. By then, the cooling system is already playing catch-up, especially on track days, spirited canyon runs, hot summer traffic, or tuned cars making well beyond stock power.
Our S55 Billet Oil Cooler Thermostat design addresses this issue at the source. Our proprietary low-temperature 70°C (158°F) thermostat routes oil through the cooler much earlier, so temperatures stay controlled before they climb instead of being pulled back down after the fact. The result is more consistent oil temperatures, more stable performance lap after lap, and less heat stress on bearings, turbochargers, and other critical components.
Unlike thermostat delete or “always open” bypass solutions, our kit uses a real working thermostat. Your engine still warms up properly on cold starts, which protects internal friction surfaces and keeps the oil at the right temperature for daily driving in any climate. Housing the thermostat is a CNC-machined billet aluminum cover, which is much stronger than the factory piece and looks great under the hood. Our thermostat solution is compatible with both factory and -10 AN oil cooler lines when used in conjunction with an AN Line Adapter (see T#59331100).
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Product Details
Keep your S55 running cooler, longer. The factory oil cooler thermostat on the S55 waits until the oil reaches roughly 110°C (230°F) before sending it to the cooler. By then, the cooling system is already playing catch-up, especially on track days, spirited canyon runs, hot summer traffic, or tuned cars making well beyond stock power.
Our S55 Billet Oil Cooler Thermostat design addresses this issue at the source. Our proprietary low-temperature 70°C (158°F) thermostat routes oil through the cooler much earlier, so temperatures stay controlled before they climb instead of being pulled back down after the fact. The result is more consistent oil temperatures, more stable performance lap after lap, and less heat stress on bearings, turbochargers, and other critical components.
Unlike thermostat delete or “always open” bypass solutions, our kit uses a real working thermostat. Your engine still warms up properly on cold starts, which protects internal friction surfaces and keeps the oil at the right temperature for daily driving in any climate. Housing the thermostat is a CNC-machined billet aluminum cover, which is much stronger than the factory piece and looks great under the hood. Our thermostat solution is compatible with both factory and -10 AN oil cooler lines when used in conjunction with an AN Line Adapter (see T#59331100).
Features & Benefits:
- Low-temperature 70°C (158°F) thermostat vs. factory 110°C (230°F)
- CNC-machined billet aluminum thermostat cover
- True thermostat design, not a bypass, so the engine still warms up properly
- Earlier oil flow to the cooler for more consistent oil temperatures under hard use
- Ideal for track, performance driving, hot climates, and tuned S55 builds
- Direct bolt-on replacement for the factory unit
- Serviceable thermostat and gaskets
Kit Contents:
- Turner Motorsport Billet Aluminum Oil Cooler Thermostat Housing
- Turner Motorsport Performance Oil Cooler Thermostat (70°C [158°F])
- Turner Motorsport Performance Oil Cooler Thermostat Spring
Product Development:
Our Billet Oil Cooler Thermostat was designed, engineered, tested, and quality-inspected by our Research and Development team at our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.
Installation & Support:
- Click HERE For Installation Instructions -
Prop 65 Warning
Kit Contents
| Qty | Description | Brand | T# | Part# | Lifetime |
|---|---|---|---|---|---|
| 1 | Elring Oil Cooler Gasket - N52 N54 N55 |
|
T#363983 | 11428637820~ELR | YES |
| 1 | N54/N55 Oil Cooler Thermostat - 70 C |
|
T#23383295 | T1285-70~TMS | YES |
| 1 | Low Temp Thermostat Spring |
|
T#26771722 | 2710RH11~TMS | YES |
| 1 | Blue-Dyed Zinc-Plated Alloy Steel Socket Head Screw, M6 X 1 Mm Thread Size, 65 Mm Long |
|
T#59331098 | 91502A177~BRP | YES |
| 1 | Class 8.8 Steel General Purpose Washer, Zinc-Flake Coated, For M6 Screw Size, 6.4mm ID, 12mm OD |
|
T#59331097 | 91455A430~BRP | YES |
| 1 | Upgraded Oil Cooler Thermostat Housing |
|
T#59331095 | 059170LA01~B | YES |
