Keep the lifeblood of your automatic transmission — its fluid — clean with the ATP Automatic Transmission Filter Kit B-31 (also written B31). It installs as a direct-fit replacement across a range of classic Ford and Mercury applications, including the 1968-1972 Galaxie 500, 1968-1970 Custom 500, 1969-1970 E-100 Econoline, and 1966-1969 Ranch Wagon — see the Buyer's Guide tab for the full list of covered vehicles.
Replacing the transmission filter is a normal part of scheduled maintenance; follow the intervals and procedure in your vehicle's service information.
Interchange: TF182 · 19941 · 33236 · 33261B · 85923 · T544 · JT326 · FT1027 · C5AP7A098C · C5AZ7A098C · TF1027 · TF20 · T27 · FT36A · 14498 · 14723 · F18 · 745012 · FK108 · P226 · 58923
This part cross-references / interchanges with the following part numbers:
What does the ATP B-31 filter kit do?
It filters debris out of the automatic transmission fluid so contaminated fluid isn't circulated, helping keep the valve body and other internal components from clogging.
Which vehicles does the B-31 kit fit?
It's a direct-fit replacement for a range of classic Ford and Mercury applications, such as the 1968-1972 Galaxie 500, 1968-1970 Custom 500, and 1969-1970 E-100 Econoline. See the Buyer's Guide tab for the full list.
How often should the transmission filter be replaced?
Replace it at the service interval specified in your vehicle's service information. Regular filter changes help extend transmission life and reduce the risk of avoidable repairs.
What are signs the transmission filter may need replacing?
Signs can include slipping, delayed engagement, or dirty or burnt-smelling fluid. These symptoms can have other causes, so diagnose the transmission before replacing parts.
Is B-31 the same as B31?
Yes. This ATP transmission filter kit is listed as both B-31 and B31 — they refer to the same part.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
