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The J&L oil separator 3.0 for 2005–2024 Toyota 4Runner 4.0L is a billet-aluminum crankcase vent separator that captures oil vapors before they enter the intake. It uses a fine mesh stainless screen and an aluminum honeycomb filter to coalesce vapors into a 3 oz removable tank with an O-ring seal, and J&L recommends draining every 2,000–3,000 miles to maintain separation performance and protect intake cleanliness.
J&L 05-24 Toyota 4Runner 4.0L Driver Side Oil Separator 3.0 - Black Anodized
