ATP Parts B-439 Transmission Oil Filter

Transmission Oil Filter for Hyundai and Kia

ATP Parts B-439 is a transmission oil filter built to keep transmission fluid cleaner as it circulates through the unit. By capturing wear debris before it can reach the valve body and other critical components, this filter supports cleaner fluid flow and helps reduce the risk of clogging-related transmission problems.

Compatible with select Hyundai Santa Fe, Santa Fe XL, Azera, and Kia Sedona, Sportage, Cadenza, and Optima applications, ATP Parts B-439 is a direct-fit service part for routine transmission maintenance.

Key Features

• Transmission oil filter for automatic transmission service
• Helps trap debris created by normal transmission wear
• Supports cleaner fluid circulation through the valve body and internal passages
• Direct replacement for select Hyundai and Kia applications
• Cross-references Hyundai/Kia OE part number 46321-3B000

Detailed Description

ATP Parts B-439 is engineered for transmission fluid filtration in vehicles that rely on clean fluid to keep internal hydraulic components operating properly. Over time, normal wear can introduce particles into the fluid, and those contaminants can restrict flow or contribute to valve body issues. Replacing the filter during transmission service helps maintain cleaner fluid and supports long-term transmission care. This part number is commonly searched as ATP B-439 transmission filter and ATP Parts B-439 for Hyundai and Kia automatic transmission maintenance.

Fits 2018 Hyundai Santa Fe, W/ Pan; Fits 2018 Hyundai Santa Fe XL, W/ Pan; Fits 2011-2017 Hyundai Azera; Fits 2010-2017 Hyundai Santa Fe; Fits 2013-2017 Hyundai Santa Fe XL; Fits 2014-2017 Kia Sedona; Fits 2012 Kia Sedona; Fits 2011-2017 Kia Sportage; Fits 2014-2016 Kia Cadenza; Fits 2016 Kia Optima; Fits 2011-2013 Kia Optima; Fits 2014 Kia Optima, Model Code KKCIPTF14.

What It Helps Address

• Dirty transmission fluid from normal wear and tear
• Debris buildup that can restrict fluid passages
• Valve body contamination
• Reduced transmission fluid cleanliness during service intervals
• Premature wear from circulating particles

Installation Notes and Tips

Install during transmission service and follow the vehicle-specific procedure for pan removal and filter replacement. Verify the application by year, make, model, and pan configuration before ordering. For Hyundai Santa Fe and Kia Optima service work, confirm the transmission setup matches the listed fitment.

Quality Assurance

ATP Parts focuses on replacement filtration components that support routine transmission maintenance. B-439 is built for the listed Hyundai and Kia applications and cross-references OE part number 46321-3B000.