FITMENT
- 2010-Present Cummins Volvo, Peterbilt, Mack, International, Freightliner, Kenworth with the ISX15 CM2250 / CM2350 engines.
DESCRIPTION
Product Overview
- Starting with Cummins ISX15 engines, the CM2250 and CM2350 platforms introduced advanced EGR systems and emissions components to meet stricter regulations.
- Over time, soot buildup, sticking EGR valves, and potential EGR cooler failures can contribute to increased maintenance and engine downtime.
- The Stage 2 EGR Plug Kit unlike basic Stage 1 block-off plates, this kit provides additional sealing coverage for EGR valve and cooler-related passages after component removal.
Key Features
- Hybrid High-Tech Construction: Anodized and CNC precision-machined for optimum seal flatness and corrosion defense on intake passages.
- Protects Engine & Reduces EGTs: Prevents sticky carbon soot from choking intake valves and stops coolant from contaminating cylinder walls, significantly lowering EGTs.
- Complete Stage 2 Isolation: Includes precision block plates and high-pressure threaded plug fittings to completely seal off both the EGR valve and the EGR cooler ports.
- Essential for Turbo Delete Conversions: Highly recommended for trucks running an aftermarket non-VGT turbo conversion or complete emissions-bypass setups.
FAQ
Q: Why do I need an EGR block-off plug kit?
A: After EGR components are removed, unused exhaust and coolant passages must be properly sealed. This kit provides block plates, plugs, and gaskets to help prevent exhaust leaks, coolant leaks, and contamination from open EGR connections.
Q: What is the difference between CM2250 and CM2350 EGR kits?
A: Cummins kept the physical flange patterns and EGR cooler mounting locations largely identical between CM2250 and CM2350 engine generations. For standard block-off and sealing hardware (plates, threaded plugs, and gaskets used to block the EGR valve and cooler ports), most kits are cross-compatible.
Q: Why is proper sealing important after EGR removal?
A: Proper sealing prevents open exhaust and coolant passages, helping maintain a clean engine bay and reducing potential leaks or contamination issues.
Q: Will installing this block-off plate require ECM custom tuning?
A: Yes. Once you physically block the EGR flow at the intake manifold, the factory ECM will detect a change in manifold pressure and airflow, triggering a CEL and potentially causing engine limp mode. Custom ECM delete tuning is required to disable the EGR sensor logic.
