Filter / Subaru R4axel 4 Spd Legacy 1/2" Tall Neck (rectangular Hole) 90-on (oem# 31728-aa010 / 31728-aa011)

Automatic Transmission Filter for Subaru 4-Speed R4axel Legacy 1990-On

Keep your Subaru's automatic transmission running clean with this direct-fit replacement filter, engineered to match OEM specifications for the 4-speed R4axel and Legacy applications. Manufactured by Atk, this filter features a 1/2" tall neck and rectangular hole design for a precise fit and reliable fluid filtration. It replaces OEM part numbers 31728-AA010 and 31728-AA011, making it an ideal choice for routine maintenance or rebuilds.

Key Features

• Direct replacement for OEM part numbers 31728-AA010 and 31728-AA011
• 1/2" tall neck with rectangular hole for exact fitment
• Designed for Subaru 4-speed automatic transmissions (R4axel / Legacy)
• Manufactured by Atk to meet or exceed OEM quality standards
• Helps protect transmission components by trapping harmful debris

Compatibility

This filter is compatible with Subaru vehicles equipped with 4-speed automatic transmissions from 1990 and up, including R4axel and Legacy models. It is not a Subaru-manufactured part; it is produced by Atk as a high-quality aftermarket replacement.

Why Choose This Part?

When it's time to service your Subaru's automatic transmission, using a filter that fits right and performs reliably is essential. This Atk filter delivers OEM-level fit and function at a competitive price, helping extend the life of your transmission. Order now and get fast shipping from Florida to keep your project moving.