ATP B-321 Automatic Transmission Sump Filter F4A51-2

The ATP B-321 is a direct-fit replacement automatic transmission sump filter designed for the Mitsubishi F4A51-2 transmission. Engineered to OE specifications, this filter keeps transmission fluid clean by capturing microscopic contaminants and wear particles that accumulate during normal transmission operation, protecting critical internal components and extending transmission life.

Key Features:

• Precision-fit sump filter designed specifically for the F4A51-2 automatic transmission
• Tested for filtration effectiveness at the micron level for thorough contaminant capture
• Developed to OE specifications for proper fluid pressure and flow rates at inlet and outlet
• Matches factory-recommended filter media material for transmission longevity
• 7.875-inch length for correct fit and sealing
• Backed by a limited 90-day manufacturer warranty

OE Cross-Reference: Mitsubishi OEM part number MR350441. Also cross-references with Beck/Arnley 440313, Purolator P1292, GK Industries TF1215, Pro-King FK366, PTC F228, Pioneer Automotive Industries 746233, LODI FCF4A51D, and Chromite JT7300.

Replace your transmission filter at regular service intervals to maintain proper fluid cleanliness, ensure consistent hydraulic pressure, and protect the longevity of your automatic transmission.