Quicksilver 866340Q03 Oil Filter for MerCruiser Sterndrive and Inboard Engines
Quicksilver 866340Q03 Oil Filter for MerCruiser Sterndrive and Inboard Engines
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Quicksilver 866340Q03 Oil Filter for MerCruiser Sterndrive and Inboard Engines

Key item features

  • Superior Filtration: Features M-Pleated cleansing filter media designed to effectively remove oil contaminants that could potentially harm the engine.
  • Lubrication Assurance: Includes an anti-drain back valve to ensure consistent lubrication during startup and prevent damaging dry starts.
  • Engine Compatibility: Specifically designed for MerCruiser high-performance sterndrive or inboard engines manufactured by General Motors and Mercury Marine.
  • OEM Specification: Produced to meet Mercury Marine original equipment manufacturer specifications, ensuring optimal protection for MerCruiser engines.
  • Broad Application: Serves as a replacement oil filter for most MerCruiser sterndrive and inboard engines, excluding V6 engines with block-mounted filters.
  • Specific Fitment: Also compatible with all Mercury Marine-made 4.5L and 6.2L engines.
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Columbus, 43215
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4.7 out of 5 stars
stars52 ratings29 reviews
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Showing 1-3 of 29 reviews

Jul 20, 2025
Steve
Sold and shipped byBoating Store
5 out of 5 stars review

Verified Purchase

Same as Mercury 35-866340K01

This is the same as the Mercury 35-866340K01. Just the retail version. Works great and installs the same.

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Helpful?20R02D6OCE5917165297
Aug 15, 2025
Hank
Sold and shipped byBoating Store
5 out of 5 stars review

Verified Purchase

Better price than the marine dealership for the same part. I understand why, %26 I appreciate my local dealership, but I am looking out for %231

Helpful?20R02D6OCE5917165297
Jun 16, 2025
Cameron
Sold and shipped byBoating Store
5 out of 5 stars review

Verified Purchase

Seemed to help oil pressure

Second season using this same filter, the oil pressure this year was better than last (75psi )in 5.0 MPI while running at speed so very pleased.

Incentivized Review
Helpful?20R02D6OCE5917165297