Heating and Cooling› Radiators

PWR

42mm Performance Radiator

$1,235.00

SKU: CR-UC-RPR078B

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The PWR 42mm Performance Radiator is a crossflow, single-pass radiator designed for enhanced cooling. It features top inlet and outlet locations, both with 28mm sizing, and a 42mm tube size for efficient heat rejection. This radiator is built by PWR in Australia and used by top teams in the IMSA Continental Tire GS series.
Show original supplier description
The PWR 42mm Performance Radiator is engineered for superior cooling performance, utilizing advanced 42mm dimple tube core technology for unmatched heat rejection. Manufactured in Australia by PWR and employed by winning teams in the IMSA Continental Tire GS series, this radiator is a crucial upgrade for any performance-oriented Porsche. Designed as a direct replacement, this radiator mounts using OEM provisions, ensuring a straightforward installation process. Its specifications include a crossflow design with a single pass, top-located 28mm inlet and outlet ports, and a 42mm tube size for maximum thermal efficiency. This performance radiator is demanded by Porsche 981 GT4, 991 GT3/RS, and 991 Turbo cars for rigorous track use. This radiator is specifically designed for the following Porsche models and chassis: 991 GT3 Coupe (2014-2016), 991 GT3 RS Coupe (2016), 991 Turbo (2014-2016), 991 Turbo S (2014-2016), 981 Boxster Spyder Convertible, and 981 Cayman GT4 Hatchback. The manufacturer notes that this radiator will fit the specified Porsche models and chassis.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPWR
Part NumberCR-UC-RPR078B
CategoryHeating and Cooling

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy