Charge Air Cooler CAC Boost Leak Tester - 6061 BILLET ALUM 60 PSI - Class 7 & 8 Trucks - Fits into intercooler hose 4", 3.5", 3" MSRP: $259.99 Now: $243.50 Choose Options Compare Detroit Diesel 12.7-Liter Series 60 MSRP: $95.99 Now: $85.00 Add to Cart Compare Compare Selected