ATP Parts B-401 Transmission Filter Kit

Transmission Filter Kit for Hyundai and Kia

ATP Parts B-401 is a transmission filter kit for select Hyundai and Kia applications. It helps keep transmission fluid cleaner by replacing the filter that traps wear debris before it can circulate through the valve body and other critical internal components.

Key Features

• Transmission filter kit for service work on select automatic transmissions
• Helps maintain cleaner transmission fluid by capturing debris from normal wear
• Supports valve body and internal component cleanliness during routine maintenance
• Fits 2007-2012 Hyundai Elantra, N/A
• Fits 2010-2011 Kia Soul, N/A
• Fits 2010 Kia Forte, N/A
• Fits 2007-2009 Kia Spectra, N/A, only fits A4CF2
• Fits 2004-2005 Kia Spectra, N/A, only fits A4CF2
• Fits 2008 Kia Spectra5, N/A, from 09/11/2006 to 03/01/2008
• Fits 2008 Kia Spectra5, N/A, from 14/02/2007 to 03/01/2008
• Fits 2005-2007 Kia Spectra5, N/A
• Fits 2006 Kia Spectra, N/A

Detailed Description

ATP Parts B-401 is built for transmission service on Hyundai Elantra and several Kia models, including Kia Soul, Forte, Spectra, and Spectra5. This transmission filter kit is used to replace a clogged or worn filter so transmission fluid can continue moving through the system with less contamination. This part cross-references OE number 46321-23000 for the same application.

Common Problems It Can Help Address

• Restricted fluid flow caused by a dirty transmission filter
• Debris buildup inside the transmission pan and fluid circuit
• Valve body contamination that can affect shifting performance
• Premature wear from circulating particles in old transmission fluid
• Service issues on Hyundai Elantra and Kia Spectra-family automatic transmissions

Installation Notes and Tips

Transmission disassembly is required for installation. Confirm the transmission code and vehicle application before service, especially on Kia Spectra models that are listed for A4CF2 only. Use the fitment notes to verify the correct year range for your Hyundai Elantra or Kia application before ordering ATP Parts B-401.

Quality Assurance

ATP Parts transmission filters are made for routine transmission maintenance where clean fluid and internal component protection matter. Regular filter replacement during service helps extend transmission life and reduce the chance of avoidable repairs.