CSF Heavy-Duty Radiator for JT / JL Jeep Gladiator and Wrangler [7340]

CSF Heavy-Duty Radiator for JT / JL Jeep Gladiator and Wrangler [7340]

CSF acknowledges the Jeep Wrangler JL and Gladiator JT for their rugged reliability and factory off-road capability, yet even these platforms can push coolant temperatures to the limit during rock crawling, off-roading, or overlanding in extreme conditions. The CSF Heavy-Duty All-Aluminum Radiator is engineered as the ultimate cooling upgrade—delivering increased heat rejection and durability to keep your Jeep running cool when it matters most.

Design & Engineering

• CSF notes that coolant overheating forces drivers to back off or stop—an unacceptable limitation for modern SUVs and trucks, especially the Wrangler. Its heavy-duty upgrade addresses this with a 2-row, 42 mm all-aluminum core that increases fluid capacity and heat rejection, while CSF’s exclusive B-Tube with new 5 mm, multi-louvered fin pack boosts heat-transfer efficiency by roughly 20–25% over conventional oval tubes. The result is a dramatic temperature reduction under all conditions. Engineered to withstand extreme environments, the radiator supports higher-boost and bigger-turbo builds and the extra load from gear, mods, and hard driving, and integrates seamlessly with factory or aftermarket transmission coolers, intercoolers, and related components.

CSF vs OEM

• CSF acknowledges that Jeep improved the JL / JT’s factory cooling, but today’s builds—bigger turbos, more boost, heavier accessories—generate far more heat than stock systems were designed to handle. Rather than waiting for heat soak, power loss, or an OEM failure, CSF recommends a proactive upgrade to its Heavy-Duty All-Aluminum Radiator: a 50% larger core volume than OEM, a 20–25% gain in heat-transfer efficiency from CSF’s new 5 mm fin and exclusive B-Tube technology, and 100% TIG-welded aluminum construction (no plastic end tanks). Engineered for extreme conditions, it integrates cleanly with factory or aftermarket transmission coolers and intercoolers, making it equally at home daily driving, towing, or tackling off-road adventures.

5mm Core Upgrade

• CSF reports that while early prototypes using its 6.5 mm fin performed well, the company pursued an even higher standard before production. The final design adopts CSF’s latest 5 mm fin technology—introduced in late 2023—providing greater heat-transfer surface area and improved thermal efficiency over the tested prototypes. CSF is confident this radiator is ready for the world’s most demanding conditions.

Plug and Play Installation

• CSF engineers these radiators as direct-replacement units for an easy, plug-and-play drop-in install (typically a 2-3 hour job), significantly enhancing engine reliability and service life.

Why Upgrade?

• CSF notes that upgraded cooling isn’t just for off-road builds or heavy haulers—even modest mods like oversized tires can add heat and strain. The CSF Radiator provides critical thermal headroom to maintain optimal coolant temperatures, extend engine life, enhance towing capability, and eliminate performance limitations in demanding conditions, all with superior construction and durability for long-term peace of mind

Features

• 2-Row-42mm high-performance core
• Cooling tubes with CSF’s exclusive B-tube technology
• New 5mm tall ultra efficient fins with a multi-louvered design for maximum surface area contact
• CNC machined mounting brackets and OEM style inlet / outlet
• 100% All aluminum TIG-welded construction
• Hand brushed satin finish
• True plug-and-play “drop-in fit” installation requires absolutely no modifications
• Individually leak and pressure tested
• 2-Year limited warranty

Specifications

• Core Thickness:
  • CSF: 42mm
  • OEM: 27mm
• Core Rows:
  • CSF: 2
  • OEM: 1
• Fin Height:
  • CSF: 5mm
  • OEM: 5mm
• Tank Material:
  • CSF: Aluminum
  • OEM: Plastic
• Core Material:
  • CSF: Aluminum
  • OEM: Aluminum
• Construction:
  • CSF: 100% TIG-welded
  • OEM: Crimp-on gasket

Applications

• Jeep Gladiator: JT (2020-2023) [3.0L V6 Turbo Diesel, 3.6L V6]
• Jeep Wrangler: JL (2018-2024) [2.0L L4 Turbo, 3.0L V6 Turbo Diesel, 3.6L V6]

Notes

• Also compatible with hybrid models

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.