HomeTransmission > FiltersATP Parts B-551 Transmission Oil Filter
Part #: B-551

ATP Parts B-551 Transmission Oil Filter

⚙️ 13 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, Forester, Impreza, Legacy, and Outback
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Reliable Transmission Oil Filter for Subaru Vehicles

The ATP Parts B-551 transmission oil filter is designed to maintain optimal transmission performance in select Subaru models. Engineered to meet the specific needs of Subaru Forester, Impreza, Legacy, and Outback vehicles, this filter helps ensure clean transmission fluid and smooth shifting.

  • Compatible with Subaru Forester, Impreza, Legacy, and Outback models
  • Part number B-551 for precise identification
  • Designed to filter contaminants from transmission fluid effectively
  • Manufactured by ATP Parts, a trusted name in automotive components
  • Line code: Atp, indicating consistent quality standards

Product Details and Specifications

The ATP Parts B-551 transmission oil filter is engineered to fit specific Subaru models, including the Forester, Impreza, Legacy, and Outback. This filter is essential for maintaining the cleanliness of the transmission fluid, which directly impacts the longevity and performance of the transmission system. The filter’s design ensures efficient removal of debris and contaminants, helping to prevent premature wear and transmission issues. The line code 'Atp' reflects the product’s adherence to ATP Parts’ quality control and manufacturing standards.

Applications and Problem Solving

This transmission oil filter is used to address several common transmission-related issues in compatible Subaru vehicles:

  • Prevents transmission fluid contamination that can cause shifting problems
  • Reduces wear on transmission components by filtering out debris
  • Helps maintain smooth and consistent gear engagement
  • Supports transmission system longevity by ensuring clean fluid flow
  • Minimizes risk of transmission overheating due to clogged filters

Installation Notes and Tips

When installing the ATP Parts B-551 transmission oil filter, ensure the vehicle is securely lifted and the transmission fluid is properly drained. Replace the filter according to the manufacturer’s recommended service intervals for Subaru Forester, Impreza, Legacy, and Outback models. Use appropriate tools to avoid damage to the filter housing and verify that the new filter is seated correctly to prevent leaks.

Quality Assurance and Warranty

ATP Parts manufactures the B-551 transmission oil filter under strict quality standards to ensure reliable performance. While specific warranty details are not provided, ATP Parts products typically meet or exceed OEM specifications for fit and function, offering confidence in durability and compatibility with Subaru transmissions.

BrandATP Parts
Part NumberB-551
LineCodeAtp

This part fits 13 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2013SubaruForesterAutomatic2.5LH4N/A
2012SubaruForesterAutomatic2.5LH4N/A
2011SubaruForesterAutomatic2.5LH4N/A
2011SubaruImprezaAutomatic2.5LH4N/A
2010SubaruForesterAutomatic2.5LH4N/A
2010SubaruImprezaAutomatic2.5LH4N/A
2009SubaruForesterAutomatic2.5LH4N/A
2009SubaruImprezaAutomatic2.5LH4N/A
2009SubaruLegacyAutomatic2.5LH4N/A
2009SubaruOutbackAutomatic2.5LH4N/A
2008SubaruImprezaAutomatic2.5LH4N/A
2008SubaruLegacyAutomatic2.5LH4N/A
2008SubaruOutbackAutomatic2.5LH4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.