Curated Partner Component
42mm Performance Auxilary Radiator LH (991 GT3/GT4/Turbo)
Porsche – 42mm Left Hand Side Radiator – 991.1 Turbo, 991.1 GT3/RS
PWR now offers radiators for the 991 GT3/RS and 991 Turbo models. Built by PWR in USA and used by top teams in The IMSA Continental Tire GS series, this LHS radiator features 42mm dimple tube core technology for unmatched heat rejection. These are the same radiators used by the winning 2016 Sebring and Laguna Seca team are a must-have for any performance upgrade on your Porsche. The radiator mounts just like the factory cooler using OEM mounting provisions and provides optimum cooling that is demanded by Porsche 991 GT3/RS and 991 Turbo cars racing on the IMSA circuit or at other racing venues.
Note: This radiator will fit the below Porsche models and chassis.
991 Carrera
2014-2016 Porsche 911 GT3 Coupe
2016 Porsche 911 GT3 RS Coupe
2014-2016 Porsche 911 Turbo
2014-2016 Porsche 911 Turbo S
CR-UC-RPR077B
Built for the Cockpit.
Partner components selected for real motorsport use — packaging, clearance, and how the part works with seats, belts, and the rest of the build.
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Product Questions.
Answers to common product and project questions.
How do I confirm fitment?
Share your chassis, year, and intended use. We’ll confirm mounting, clearance, and any vehicle-specific brackets before you order.
Are partner parts returnable?
Most curated components can be returned unused in original packaging within the stated window. Custom or cut parts are final sale—confirm before ordering.
Do you help with installation?
Yes. We can advise on mounting, harness routing, and shop selection, or take the install in-house when the project calls for it.
Lead time and shipping?
Lead times vary by brand and configuration. Contact us for current stock and shipping estimates before you need the part on the car.
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Check compatibility.
Not sure if this part fits your chassis or series? We’ll confirm before you order.