CSF OEM+ Performance Fender Oil Cooler for 964 & 993 Porsche Carrera / GT2 / RS America / Speedster / Targa / Turbo [8334]

CSF OEM+ Performance Fender Oil Cooler for 964 & 993 Porsche Carrera / GT2 / RS America / Speedster / Targa / Turbo [8334]

CSF acknowledges that when it comes to the Porsche 911, few generations stir as much passion and controversy as the 964 and 993. These two generations represent the final chapters of the air-cooled era, and Porsche worked to bridge the gap between classic design and modern performance. However, several challenges proved difficult to overcome. Both the 964 and 993 ran hotter than earlier air-cooled 911s due to increased performance output, stricter emissions regulations, and limited engine bay space. CSF notes that Porsche was truly pushing the limits of air / oil cooling, especially given the technology and design constraints of the time. Building on the success and strong response to the CSF 911 / 930 Turbo Fender Oil Cooler, CSF has expanded its Porsche performance lineup with a modern OEM+ upgrade for the last of the air-cooled 911s — introducing the all-new CSF OEM+ Performance Engine Oil Cooler for the Porsche 964 and 993.

Design & Engineering

• To develop a truly modern cooling solution for the 964 and 993, CSF once again partnered with the Porsche engine building and restoration specialists at SV Auto. Their extensive expertise in air-cooled engine restoration and performance provided CSF with critical insight that directly influenced the design of this next-generation cooler. Leveraging proven technology from the best-selling G-Body Engine Oil Cooler — a project that required over 18 months of development and more than $20,000 in R&D — CSF brings advanced modern engineering to the 911 platform with this release.
• Engineered to integrate seamlessly into concours-level restorations, the CSF oil cooler delivers factory-style appearance alongside cutting-edge performance and construction. Whether the build is a restored classic 964 / 993, a high-horsepower resto-mod, or a track-prepped machine, CSF offers the ultimate OEM+ performance cooling solution for air-cooled Porsche 911s.

M30 x 1.5 High-Flow Fittings

• CSF drew further inspiration from its proven 911 / 930 Turbo Fender Oil Cooler, incorporating a similarly engineered set of Widemouth fittings. These precision-machined, threaded M30 Widemouth fittings feature an optimized inner diameter designed to substantially improve oil flow.
• These upgraded fittings deliver up to 50% greater flow capacity compared to standard OEM connections. Each fitting is crafted in-house from high-strength stainless steel to ensure maximum durability, pressure resistance, and long-term reliability. For added assurance and ease of installation, CSF pre-installs the fittings using high-quality copper crush washers to ensure a leak-free seal.

CSF vs OEM

• CSF recognizes that the original Längerer & Reich oil cooler for the Porsche 964 and 993, developed in the 1980s, has begun to show its age. While replacements are still available through the Porsche Classic program, CSF points out that these OEM units are manufactured using the same outdated materials and design specifications as the originals. Replacing a clogged or failing cooler with a factory unit may temporarily resolve the issue, but it does not offer any meaningful improvements in cooling performance or long-term reliability.
• CSF constructs its oil cooler from TIG-welded, 100% aluminum to significantly enhance strength and durability. This robust design ensures confidence under demanding conditions and spirited driving. The cooler is engineered as a true “drop-in fit” solution, mounting in the factory location and fully compatible with the OEM fan and A/C condenser — no modifications or cutting required. CSF also refined the fan shroud mounting locations for improved fitment and easier installation.

Premium Packaging

• Each CSF oil cooler is packaged in a premium box with precision-cut foam inserts to ensure maximum protection during shipping, giving customers peace of mind from the moment the product leaves CSF’s facility.

Features

• Innovative rolled fin design – stronger / more durable and less clogging
• Wider air passages for improved flow
• 10% increase in airflow
• 16% larger Core volume
• 6% increase in heat dissipation
• No change in oil pressure vs OEM
• OEM+ / High-performance recreation of the original Längerer & Reich oil cooler
• Modern dual pass 50mm high-performance tube and fin core
• Stainless steel “widemouth” M30 x 1.5 high-flow fittings
• Improved design of fan shroud mounting locations for easier installation
• 100% all aluminum TIG-welded construction
• Satin Black finish
• True plug-and-play “drop-in fit” installation requires absolutely no modifications
• Individually leak & pressure tested at 8bar (116psi)
• CSF logo stamping and individually serialized for quality control & authenticity
• Product specific foam inserts and high quality 5-ply box to ensure damage free shipment worldwide
• Includes warranty sheet with torque specifications
• 10-year limited warranty

Specifications

• Core Length x Height:
  • CSF: 269mm x 255.6mm
  • OEM: 268mm x 244mm
• Core Thickness:
  • CSF: 50mm
  • OEM: 44mm
• Core Volume:
  • CSF: 3438cc
  • OEM: 2877cc
• # Cooling Tubes:
  • CSF: 22
  • OEM: 22
• # Cooling Fin Rows:
  • CSF: 23
  • OEM: 23
• Fin Height:
  • CSF: 7mm multi-louvered fin
  • OEM: 7mm
• Core Material:
  • CSF: Aluminum
  • OEM: Aluminum
• Tank Material:
  • CSF: Aluminum
  • OEM: Aluminum
• Construction:
  • CSF: 100% TIG-welded
  • OEM: Brazed

Applications

• Porsche 911 Carrera: 964, 993 (1990-1998) [3.6L H6 M64]
• Porsche 911 Carrera 4: 964, 993 (1989-1998) [3.6L H6 M64]
• Porsche 911 Carrera 4S: 993 (1996-1998) [3.6L H6 M64]
• Porsche 911 Carrera RS: 993 (1995-1996) [3.8L H6 M64/20]
• Porsche 911 Carrera S: 993 (1996-1998) [3.6L H6 M64]
• Porsche 911 GT2: 993 (1995-1997) [3.6L H6 twin-turbo M64/60]
• Porsche 911 RS America: 964 (1993-1994) [3.6L H6 M64]
• Porsche 911 Speedster: 964 (1989-1994) [3.6L H6 M64]
• Porsche 911 Targa: 993 (1996-1998) [3.6L H6 M64]
• Porsche 911 Turbo: 964, 993 (1990-1998) [3.3L H6 turbo M30/69, 3.6L H6 turbo M64/50, 3.6L H6 twin-turbo M64/60]

About CSF

The Racing & High Performance Division of CSF Inc. is dedicated to designing and producing the world’s most advanced, efficient, and dependable cooling solutions. CSF offers a broad range of state-of-the-art cooling systems, with over 250 distinct applications. These include high-performance all-aluminum direct-fit radiators, intercoolers, and oil coolers, as well as bespoke manufacturing tailored for racecars, power sports, off-road vehicles, marine, and industrial applications. Every cooling solution from CSF is meticulously crafted to ensure optimal engine temperature management, even in the most rigorous driving scenarios. With a legacy spanning over 50 years and more than 40 million cooling units distributed worldwide, CSF is widely regarded as a luminary in the industry.