Oil Cooler Kit for Scion FR-S (2013-2015) 2.0L

Thermostatic 19-Row Oil Cooler Kit for 2013-2015 Scion FR-S (ZN6)

What it Does: The thermostatic oil cooler kit regulates fluid thermal load on the 2013-2015 Scion FR-S by routing engine oil through an external 19-row heat exchanger to stabilize oil viscosity and protect internal engine bearings.

The Stock Scion FR-S Thermal Weakness

The factory FA20 naturally aspirated boxer engine lacks a dedicated external liquid-to-air engine oil cooler from the factory. Under sustained high-RPM operation, aggressive canyon runs, or track use, the ZN6 platform regularly pushes engine oil temperatures well beyond safe operating limits, often exceeding 265°F (130°C). At these elevated temperatures, low-viscosity oils shear rapidly, drastically reducing hydrodynamic film thickness at the rod bearings and main journals, leading to accelerated wear and catastrophic bottom-end engine failure.

The Engineering Solution

This system integrates an efficient 19-row bar-and-plate aluminum oil cooler core mounted directly in the high-pressure ambient airflow stream. A billet aluminum 73°C (163°F) thermostatic sandwich plate mounts beneath the top-mounted oil filter, preventing cold-start thermal lag by retaining oil in the block until operational temperature is met. Once reached, the internal thermostat directs hot oil through high-pressure lines with leak-free AN fittings to reject heat efficiently, dropping operating temperatures back into the safe 200°F–225°F window.

What's Included

• 1 x 19-row aluminum oil cooler core
• 1 x 73°C thermostatic sandwich plate with adapter spacer
• 2 x Pre-crimped high-pressure oil hoses
• 1 x Application-specific mounting bracket kit
• Installation hardware and leak-free O-ring fittings

Technical Specifications

Compatibility

• 2013-2015 Scion FR-S 2.0L FA20
• 2013-2019 Subaru BRZ 2.0L FA20
• 2013-2019 Toyota 86 / GT86 2.0L FA20

Frequently Asked Questions & Fitment Warnings

Does this fit the ZN6 FR-S?

Yes, this is a direct fit for the 2013-2015 Scion FR-S equipped with the FA20 engine.

How much additional engine oil is required after installing this kit?

The 19-row core and external oil routing lines typically add approximately 0.6 to 0.8 quarts of overall oil capacity to your system.

The Scion Performance Standard

Engineered for high-revving boxer platforms, this oil cooling setup provides the thermal stability demanded by the ZN6 chassis to withstand lap after lap without power drop-off or bearing compromise.