C-4 Cast Aluminum Deep Tranny Pan

The C-4 Cast Aluminum Deep Tranny Pan is a purpose-built transmission sump upgrade designed for Ford C4 automatic transmissions, delivering the extra fluid capacity serious builders and daily drivers need to maintain cooler operating temperatures and reduce heat-related wear. If you've spent time modifying your classic or modern Ford-powered vehicle, you know that stock transmission pans often lack the reserve capacity required during sustained driving, towing, or performance applications. This deep-sump design adds a full quart of ATF capacity, a straightforward but critical improvement that directly extends transmission life and improves shift consistency under load.

Cast from durable aluminum and finished in natural bare metal, the C-4 Cast Aluminum Deep Tranny Pan features integral cooling fins that increase surface area for heat dissipation—a passive but effective cooling strategy that complements active transmission coolers or stands alone in moderate-duty applications. The finned design isn't cosmetic; those ribs dramatically raise the pan's thermal mass and expose more oil to ambient airflow, resulting in measurable temperature reductions during highway cruising or stop-and-go city work. At 8.41 lbs, the pan's substantial weight reflects its cast construction and thick aluminum walls, ensuring rigidity and long-term durability without the flex that thinner stamped-steel pans exhibit under pressure or vibration.

Street rod builders, truck restorers, and anyone running a Ford C4 in a hot climate or with aggressive shift programming will appreciate the 1.0-quart increase in fluid reserve and the passive cooling provided by the finned aluminum construction. Installation is straightforward—the pan bolts to the transmission housing using existing mounting points, though new gaskets and fluid are required during replacement. Verify C4 transmission fitment before ordering, as pan geometry is transmission-specific; this unit is engineered exclusively for Ford C4 three-speed automatics across multiple platform applications.