100% Genuine SMX complete Aftercooler for Cummins QSC 8.3 Engine

** All complete SMX aftercoolers will arrive pre-serviced, hang-on ready! **

Includes Spare O-Ring Kit & Metalube Grease

Cummins Part: 5301727

New SMX Core Made to Seaboard Specifications:

Core length has been specifically shortened 0.030”
to increase overall “Core Float” distance which
allows housings to be re-surfaced in cases of heavy corrosion.

SMX Aftercooler Cores are Made in the U.S.A.

Heavy Duty Construction & Materials

• SMX aftercooler housing is cast from ZL109 hi-strength / high-corrosion resistant Aluminum (used in high-performance engine pistons)
• Housing is Hard Anodized to mil-spec Type III (extra thick)
• SS Heli coils in all essential locations
• Improved Endplate Materials changed to C95200 (Aluminum Bronze) to resist Corrosion & Pitting
• Constructed with Heavy Duty CuNi Tubes