3/8" Oil Cooler Line Remover Used for disconnecting transmission oil cooler lines. The flares on the cooler lines near the fittings prevent access with the original style disconnect tools. The locking clip used in the fitting is different than the standard 'tabs' used on most other applications. Used for R and R of Oil Cooler Lines. Purple-Anodized Aluminum Construction. The #8021 will clear the flare & disconnect the new style clips with ease. Applicable: [2003-2004] Ford Explorer, [2003-2008] Ford F-150 and [2003-2004] Cadillac CTS 8021 No -