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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
For Use with Big Boss Exhaust Manifold PN 9445 and 9446
Double O-Ring Seal
5 - 2010 CAT C15 Acert Engines
and W900B models
Big Boss Performance Radiator | Peterbilt 389 ISX15 Tuner For Use with Big BossBig Boss performance radiators for Peterbilt 389 models feature a dimpled tube design to allow coolant more time to cool properly for more demanding applications. When combined with higher fin count and more efficient cores, PDI radiators increase cooling capacity 15 20% over OEM. Size and Fitment is direct replacement for simple installation. Constructed of quality aluminum cores with plastic tanks to ensure no tank corrosion and efficient cooling
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