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The CSF transmission oil cooler for 2003–2009 Toyota 4Runner 4.0L provides dedicated cooling for transmission fluid to help manage operating temperatures and support smooth drivetrain operation. Intended as the application-specific replacement, it restores cooling capacity lost to wear or blockage, helping maintain transmission health for regular driving and occasional heavy loading.
CSF 03-09 Toyota 4Runner 4.0L Transmission Oil Cooler
