ATP Parts B-403 Transmission Filter Kit

Transmission Filter Kit for Honda Civic and Fit

ATP Parts B-403 is a transmission filter kit built to help keep transmission fluid cleaner as it circulates through the unit. For Honda Civic and Honda Fit applications, regular filter service helps reduce debris buildup that can restrict flow and affect internal components.

• Transmission filter kit for service replacement
• Helps capture wear debris from transmission fluid
• Supports cleaner fluid flow through the valve body and related components
• Fits 2012-2013 Honda Civic, strainer
• Fits 2009-2013 Honda Fit, strainer
• Fits 2006-2008 Honda Civic
• Fits 2007-2008 Honda Fit, only fits SPCA

Detailed Product Information

ATP Parts B-403 is a transmission filter kit for routine transmission service on select Honda Civic and Honda Fit models. The filter is used to remove accumulated debris from transmission fluid, helping maintain cleaner fluid as it moves through the transmission. Keeping the fluid cleaner can reduce the chance of clogging in the valve body and other critical internal passages. This part cross-references Honda 25420-RPC-003 for the same application.

Common Service Issues

• Dirty transmission fluid from normal wear
• Debris buildup that can restrict fluid flow
• Clogging in the valve body or internal passages
• Reduced transmission service life from neglected filter maintenance
• Costly repairs linked to contaminated fluid

Installation Notes and Tips

Verify the transmission code and application before ordering, especially for 2007-2008 Honda Fit models marked only fits SPCA. Match the part number B-403 to the vehicle’s transmission service requirements and inspect the fluid condition during replacement. Confirm fitment for your Honda Civic or Honda Fit before installation.

Quality Assurance

ATP Parts transmission filters are built for transmission service maintenance and are backed by ATP Parts manufacturing standards.