Out of stock
SKU: PFM69680.2
UPC: 037995711154
MPN: 69680.2
The 79-93 Mustang Slim Fit Radiator Auto Trans by ProForm is engineered for Fox-body Mustang owners who demand efficient cooling without sacrificing underhood clearance. This compact radiator addresses a critical challenge in third-generation Mustang builds: factory radiators often create packaging conflicts when upgrading to modern engines, larger alternators, or custom intake manifolds. The slim-fit design delivers the solution, maintaining adequate heat dissipation while freeing up valuable installation space for performance modifications and quality-of-life upgrades.
ProForm engineered this radiator specifically for automatic transmission applications, meaning the cooling capacity and fin density are optimized for the thermal load and fluid temperatures typical of stock and mildly modified automatic powertrains. The aluminum core construction provides superior heat transfer compared to older brass-and-copper designs, while the reduced overall footprint allows air to flow efficiently without interfering with serpentine belt routing or accessory placement. At 21.75 inches wide and 7.75 inches deep, this unit fits within tight engine bay constraints that would reject oversized or stock-width alternatives, making it ideal for restomod builds where modern reliability meets classic aesthetics.
This radiator is the go-to choice for 1979–1993 Mustang owners with automatic transmissions who are installing newer crate engines, upgrading cooling systems on stock builds, or resolving chronic overheating in heavily modified platforms. Mechanics and enthusiasts doing frame-off restorations frequently specify this unit to eliminate fitment issues that plague universal radiator applications. Installation pairs well with electric fan conversions, which further reduce parasitic power loss and heat soak. Verify automatic transmission cooler line routing and hose diameter compatibility during fitment, as adapters may be required depending on your specific year model and cooling system configuration.
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