Th350 Finned Pan

The TH350 finned pan from TRANS-DAPT is a direct replacement transmission pan engineered for TH350 automatic transmissions in classic and modern muscle cars, hot rods, and street machines. As a seasoned mechanic, you know that transmission cooling is critical to longevity and performance—stock pans often struggle to dissipate heat adequately during spirited driving or towing. This finned pan upgrade solves that problem by increasing surface area for passive heat rejection without requiring external coolers or complex modifications.

Constructed from steel with a mirror-polished chrome finish, the TH350 finned pan features ribbed sidewalls and external fins that work together to radiate heat more efficiently than flat-bottom designs. The chrome plating not only provides superior corrosion resistance—especially critical in wet climates or salt environments—but also delivers the clean, show-quality appearance that separates a pro build from a bolt-and-go job. Weighing just 3.5 pounds and measuring 14.6 by 18 inches, it fits within the OEM envelope while the internal stock sump geometry maintains perfect compatibility with existing TH350 components, gaskets, and dipstick assemblies. No adapters or modifications required; drop-in installation takes minutes.

This pan is ideal for restorers building show-quality TH350-equipped vehicles, performance enthusiasts upgrading cooling on street or strip cars, and anyone running their transmission harder than stock cooling allows. Whether you're wrapping up a frame-off restoration, adding highway performance to a vintage build, or simply refusing to let transmission temperature creep into the danger zone, the finned design delivers measurable benefits without sacrificing OEM fitment or aesthetics. Installation pairs seamlessly with stock or performance torque converters, deep-sump modifications, and external transmission coolers for builders who demand maximum control over fluid temperature.