Search site: Submit Search Policy My Account PRODUCTS ACCESSORIES HARDWARE 2002-2007 ISX ISM CM870/CM875 2008-2009 ISX ISM ISB ISC ISL CM871/CM876/CM2150 2010-2016 ISX12 ISX15 ISB6.7 ISB9 ISL9 ISC8.3 QSL9 CM2250/CM2350 2017-2023 X15 L9 B6.7 CM2350/CM2450 Shipping Returns About Us Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 MENU Open menu www.m18performance.com Policy My Account (0) PRODUCTS ACCESSORIES HARDWARE 2002-2007 ISX ISM CM870/CM875 2008-2009 ISX ISM ISB ISC ISL CM871/CM876/CM2150 2010-2016 ISX12 ISX15 ISB6.7 ISB9 ISL9 ISC8.3 QSL9 CM2250/CM2350 2017-2023 X15 L9 B6.7 CM2350/CM2450 Shipping Returns About Us Home > PRODUCTS > 2010-2016 ISX12 ISX15 ISB6.7 ISB9 ISL9 ISC8.3 QSL9 CM2250/CM2350 > Genuine Cummins® Exhaust Brake kit CM2250/CM2350/CM2450 ISX15/X15 Alternative Views: Our Price: $1,088.95 Product Code: 4089338-2NDGEN Qty: Description An Exhaust Brake Kit, also known as an engine brake or compression brake, is a device installed in a diesel truck's exhaust system to assist in slowing down the vehicle. The kit works by restricting the flow of exhaust gases, which creates back pressure that helps slow down the engine and ultimately the truck. This is particularly useful when driving downhill or when trying to maintain control of a heavy load. The 4089338 Exhaust Brake Kit is designed specifically for use with certain models of Cummins engines and includes all necessary components for installation. It can be a valuable addition to any diesel truck driver's toolkit, providing increased safety and control on steep grades or during heavy braking situations.Parts Included:Solenoid Valve1 3929051V Band Clamp1 3929060Exhaust Outlet Connection Gasket1 3944864Exhaust Brake1 4089339V Band Clamp1 4089340Note:WORKS WITH M18 NON-VGT CONVERSION KIT 2012-2023 (ISX15 & X15) CM2250 CM2350 CM2450.11" Clearance RequiredLead Time:In stock items, Orders placed before 2:00pm Central Time on a business day (Monday - Friday) will ship the same day. Orders placed after 2:00pm Central Time will be shipped until the next business day.Fits:MACKVOLVOPETERBILTKENWORTH FREIGHTLINERINTERNATIONAL 2012-2023 (ISX15 & X15) CM2250 CM2350 CM2450 Share your knowledge of this product. Be the first to write a review »