Derale 13303 6 Pass 18" Series 7000 Copper/Aluminum Transmission Cooler Kit -6AN 2002 It is made of plastic

It is made of plastic with nickel plated copper alloy

2014 - 2018 GMC Sierra 1500 5-1/2 Foot Bed

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Derale 13303 6 Pass 18" Series 7000 Copper/Aluminum Transmission Cooler Kit -6AN 2002 It is made of plasticSPECIFICATIONS 6 Pass 18" Series 7000 Copper Aluminum Transmission Cooler Kit, 6AN. Buy now and get same day shipping! Prevents heat related transmission failures Extends life of transmission Improves transmission performance Extruded plastic cooling fin guards 6 pass cooler design 1 2" copper tubing expanded into aluminum cooling fins 6AN inlets 18500 GVW rated Cooler style: Tube & Fin Construction: Copper tube and aluminum fin Inlet size: 6AN male