ATP Transmission Filter Kit P/N:B-401

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$28.99
MPN: B-401
UPC: 740993072881
Item Package Quantity: 1
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ATP Transmission Filter Kit P/N:B-401
ATP Transmission Filter Kit P/N:B-401
$28.99

Keep clean fluid moving through your automatic transmission with the ATP Transmission Filter Kit B-401 (also written B401). It drops in as a direct-fit replacement for the 2007-2012 Hyundai Elantra and the 2010 Kia Forte — see the Buyer's Guide tab for engine-level details on the listed applications.

ATP transmission filters are designed to keep the life blood of your transmission — the transmission fluid — clean. Every transmission eventually accumulates debris from normal wear and tear, so keeping the fluid clean helps protect the valve body and other vital components from clogging.

  • Traps debris: filters wear particles out of the circulating fluid so they don't reach critical passages.
  • Protects the valve body: helps keep the valve body and other vital components from becoming clogged.
  • Routine maintenance: replacing the filter at each fluid service helps extend transmission life and reduce the possibility of costly repairs.

Signs the filter may need replacing include delayed or harsh shifts, slipping, or contaminated fluid — diagnose the cause before servicing, as these symptoms can have other sources. Install it with fresh transmission fluid following the vehicle service procedure.

Interchange: 46321-23000
4632123000

This part cross-references / interchanges with the following part numbers:

46321-23000

Frequently Asked Questions

What vehicles does the ATP B-401 fit?

It is a direct-fit replacement for the 2007-2012 Hyundai Elantra and the 2010 Kia Forte. Check the Buyer's Guide tab to confirm fitment for your vehicle.

What does a transmission filter do?

It keeps the transmission fluid clean by trapping debris from normal wear, helping protect the valve body and other vital components from clogging.

Why should I replace the transmission filter?

Regularly replacing the filter helps keep the fluid clean, extends transmission life, and reduces the possibility of costly repairs that could have been avoided.

What interchange number does this filter cross to?

It replaces interchange number 46321-23000 (also listed as 4632123000). Match the number to your original part to confirm.

What are signs the filter may need replacing?

Delayed or harsh shifts, slipping, or contaminated fluid can be signs. Diagnose the cause first, since these symptoms may have other sources.