High Flow Intake Manifold 3682657 is designed for Cummins ISX CM870 engines (2003–2007). Delivers increased airflow, enhanced combustion, and better throttle response—perfect for performance-focused upgrades or replacements.
OE Replacements: 3682657
$265.00
Upgrade your 2003-2007 Cummins ISX CM870 14.9L with a high-performance intake manifold designed for enhanced airflow and efficiency. Featuring smoother contours and enlarged ports, this intake manifold optimizes air distribution, ensuring a balanced air/fuel mixture across all cylinders. Designed as a direct bolt-on replacement, it requires no modifications for installation. Experience improved horsepower, torque, and fuel efficiency, giving your truck the power it needs for any challenge.
OE Replacements: 3682657
Direct bolt-on installation
Boosts horsepower and torque
Enhances fuel efficiency with a free-flowing design
Genuine Air Intake Connection Tube Elbow 3682674 designed for Cummins ISX, ISX15, and QSX engines. Ensures proper airflow routing, durability, and a direct OEM fit for efficient engine operation.
Upgrade your Cummins ISX or ISX15 engine with this complete Turbo Conversion Kit. Compatible with ECM models CM2250, CM2350, CM570, CM870, and CM871, it delivers increased airflow and better boost response and supports high-performance turbo setups.
Applications: Cummins ISX , ISX15, CM2250, CM2350, CM570, CM870, CM871
Boost your engine’s output with this Turbocharger Conversion Kit for Cummins ISX and ISX15. Designed for maximum performance, it supports larger turbo installs, improves airflow, and increases horsepower and throttle response.
Applications: Cummins ISX , ISX15, CM2250, CM2350, CM570, CM870, CM871
Turbo Conversion Kit for Cummins ISX and ISX15 engines featuring a T6 flange performance manifold. Designed to deliver maximum airflow, faster spool times, and increased horsepower for tuned or upgraded engine builds.
Applications: Cummins ISX , ISX15 , CM2250 , CM2350, CM570, CM870, CM871
Turbocharger - HE351V | Cummins ISB Engine | 2834857, 4044384 
3682674 | Air intake Connection Tube Elbow | Cummins ISX / ISX15 / QSX 
HE400VG | Cummins Engine | PC360-10 
