ATP Transmission Filter Kit P/N:B-173
Keep clean automatic transmission fluid flowing through your gearbox with the ATP Automatic Transmission Filter Kit B-373 (also written B373). It installs as a direct-fit replacement for the 2005-2007 Avanti Avanti, 2002 Ford Explorer, 2007-2010 Explorer Sport Trac, 2003-2005 Lincoln Aviator, and 2004-2010 Mercury Mountaineer — see the Buyer's Guide tab for engine-level fitment.
A clogged or restricted filter can starve the transmission of fluid and lead to delayed or harsh shifts. If a dirty or failing filter is the cause of poor shift quality on your vehicle, replacing it with this kit renews that part of the fluid path. Always follow the vehicle service procedure for correct fluid type, fill level, and any required components.
What does this transmission filter kit do?
It strains debris out of the automatic transmission fluid as it circulates, helping protect the valve body, clutches, and other internal transmission components.
Which vehicles does the ATP B-373 fit?
It's a direct-fit replacement for the 2005-2007 Avanti Avanti, 2002 Ford Explorer, 2007-2010 Explorer Sport Trac, 2003-2005 Lincoln Aviator, and 2004-2010 Mercury Mountaineer. See the Buyer's Guide tab.
What are signs the filter may need replacing?
Delayed, harsh, or slipping shifts and dirty or contaminated fluid can be signs of a restricted filter. Diagnose the cause before servicing, as these symptoms can have other sources.
Is the manufacturer part number B-373 or B373?
Both refer to the same ATP kit; the part is written as B-373 and also as B373.
When should this kit be installed?
It's intended to be installed during a routine transmission fluid and filter service. Follow the vehicle service procedure for the correct fluid type and fill level.
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.