Adjustable Modulator

ADJUSTABLE MODULATOR (TH400, TH350)

The Coan Racing COA‑22650 Adjustable Modulator is an expertly crafted modulator designed specifically for Turbo Hydramatic 400 and TH350 transmissions. Manufactured in the USA to Coan’s exacting standards, this unit allows drivers and builders to fine-tune modulator pressure settings, providing precise control over shift timing and firmness. This modulator helps achieve optimal shift characteristics tailored to engine intensity and driving style.

As a direct-fit replacement for stock modulators, the COA‑22650 installs without modifications and maintains the hydraulic integrity vital for consistent, repeatable shifts. Whether being used in street/strip performance builds or full race-prepped TH400/TH350 units, this adjustable modulator offers enhanced adaptability, ensuring crisp, consistent shifts under varying vacuum levels and load conditions. It's an essential upgrade for anyone seeking to dial in transmission behavior to match engine performance and driving environment.