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Radiator oil cooler High-Performance Core. Porsche 914/6 - 90110705903
Code: 90110705903/2
Radiator oil cooler, Engine block.

OEM+ / High-Performance recreation of the original Behr Oil Cooler
CNC Machined mounting plate with helix design for strength and pocketed for weight savings
Modern Tube & Fin core with lower pressure drop and higher heat dissipation than the original
All OEM Behr features replicated on the billet mounting plate and cooler case
Comes standard with modern Cerakote titanium finish (additional heat dissipation) – modern interpretation of the OEM Behr finish
Optimized ID and flow characteristics of oil pipe for maximum oil flow through the vehicle’s oil system
Complete drop-in fit, absolutely no modifications to install


Porsche 914/6

Porsche 914 with flat six engine conversion

Click 'Zoom in' for large parts diagram.
Diagram Ref No 15

Cross reference numbers

The new oil cooler for the Porsche 914-6 is based on the incredibly popular and successful CSF 911/930 Turbo Engine Oil Cooler (CSF #8242). Both of these oil coolers went through 2+ years of development and multiple rounds of prototypes. The CSF Porsche 914-6 Engine Oil Cooler’s world debut at Rennsport Reunion 2023 was met with incredible support and enthusiasm from the community. Obviously air-cooled enthusiasts know the struggles associated with the oil cooler located on the engine block of the old flat six motor. With the 914-6 swaps/conversions becoming ever more popular, this new Oil Cooler will be a game changer for classic Porsche owners and restoration shops.

The high-performance core uses 7 cooling tubes with 8 rows of fins. Between the ultra efficient fin design and high flow tubes, the CSF cooler is ~10% more efficient than a brand new OE unit and up to 25% more efficient than a used unit.

Because the base plate of the cooler is also a common problem area, CSF sought to improve this area as much as possible. Instead of the original cast design, the CSF cooler uses a CNC machined billet aluminum plate. This offers a perfectly flat mounting surface which is both stronger and more resistant to warping over time. You’ll also notice a special helix design which adds strength while keeping weight at a minimum.

Each unit is Individually Leak and Pressure Tested with a 10 year warranty
New OEM coolers from Porsche are extremely scarce/hard to source and cost $1,300+

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