CSF Porsche 964 / 993 OEM+ Performance Engine Oil Cooler

The Porsche 964 and 993 models represent a pivotal era in the evolution of the iconic air-cooled 911 series. These vehicles, while celebrated for their performance and engineering, operated under more demanding thermal conditions compared to their predecessors. Factors such as increased engine output, stricter emissions regulations, and constrained engine bay dimensions contributed to elevated operating temperatures. Porsche’s original air/oil cooling systems, innovative for their time, began to approach the limits of their effectiveness given the technological constraints of the late 20th century.

Building upon the resounding success and positive reception of the CSF 911/930 Turbo Fender Oil Cooler (#8168), CSF has expanded its portfolio with a cutting-edge OEM+ performance upgrade tailored specifically for the final air-cooled 911 generations. Introducing the CSF Porsche 964 / 993 OEM+ Performance Engine Oil Cooler — a product that seamlessly integrates modern engineering advancements with the revered design principles of Porsche’s classic air-cooled engines.

Design & Engineering Excellence

CSF’s commitment to delivering a superior cooling solution led to a strategic partnership with SV Auto, renowned specialists in Porsche engine restoration and performance enhancement. Their extensive expertise in air-cooled engine dynamics and restoration informed the development process, ensuring the cooler meets the highest standards of functionality and authenticity.

Leveraging proprietary technology perfected during the development of the best-selling G-Body Engine Oil Cooler — a project that encompassed over 18 months of rigorous R&D and an investment exceeding $20,000 — the CSF 964/993 cooler embodies the pinnacle of modern oil cooling technology. This product is engineered to blend flawlessly into concours-level restorations, preserving the factory aesthetic while delivering enhanced thermal performance and durability.

Whether your project involves restoring a classic 964 or 993, constructing a high-output restomod, or preparing a vehicle for competitive track use, this cooler represents the ultimate OEM+ upgrade, combining authentic appearance with advanced cooling efficiency.

Endorsed by Industry Leaders

Pfaff Tuning, a globally recognized authority in Porsche 964 performance and restoration since 2012, integrates the CSF OEM+ Performance Oil Cooler into their bespoke restoration and tuning programs. Their dedication to OEM+ authenticity and performance has made them a trusted partner for enthusiasts seeking uncompromising quality and reliability. Pfaff Tuning exclusively utilizes genuine OEM Porsche components or premium aftermarket upgrades such as the CSF cooler to ensure optimal vehicle performance and longevity.

First impressions of unboxing the cooler were of the high level of quality. Fitment was no different. All the OEM lines, shroud and hardware fit perfectly in place as if the cooler was OEM. We look forward to using these coolers on all our 964 project cars going forward. Using any oil cooler other than CSF just makes no sense.

Erik Morrison
Parts Manager
Pfaff Tuning

CSF vs OEM: A Technological Advancement

The original Längerer & Reich oil cooler, designed for the Porsche 964 and 993 during the 1980s, was a benchmark in cooling technology at the time. However, after more than three decades, its design and materials have become outdated. Although Porsche Classic continues to offer OEM replacements, these units replicate the original specifications without incorporating modern improvements in cooling efficiency or durability. Consequently, while OEM replacements may resolve immediate operational issues, they do not enhance performance or reliability in a meaningful way.

Key Features of the CSF Oil Cooler

The CSF Porsche 964 / 993 OEM+ Performance Engine Oil Cooler incorporates a suite of advanced features that significantly improve upon the original design:

• Innovative Rolled Fin Design: Enhances structural strength and durability while reducing susceptibility to clogging.
• Wider Air Passages: Facilitates improved airflow through the cooling core.
• 10% Increase in Airflow: Optimizes cooling efficiency by allowing greater volume of cooling air.
• 16% Larger Core Volume: Expands the cooling surface area for superior heat exchange.
• 6% Increase in Heat Dissipation: Improves the cooler’s ability to transfer heat away from the engine oil.
• Maintains OEM Oil Pressure: Ensures no adverse impact on engine oil pressure, preserving system integrity.

Clogged Core Comparison: OEM Cooler vs CSF Cooler

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.