Peterbilt 320 Charge Air Cooler # 606157

Peterbilt, 320,520, Charge Air Cooler, Lifetime Warranty, (G-PB20M-Lower, X5931001, X5931001, W0993001, EC172001, FW530001, F3161660101021, F3161666101021, F3161661202011, F3161661102011), This is a 2 piece charge air cooler, This is just the Bottom@