Find Jeep Grand Cherokee Diesel Engine Air Intake System Components. Explore Jeep Grand Cherokee Air Intake System Components & Diesel Engine Air Intake System Components. Maintaining the intake manifold components of your Jeep Grand Cherokee is crucial for optimal engine performance. Regularly check for any signs of wear or cracks, as these can indicate the need for replacement. Enhance the component's lifespan by ensuring all seals are tight and the manifold is clean from debris. When selecting a new intake manifold, consider the material quality and compatibility with your vehicle model. Aluminum options offer durability and heat resistance, while aftermarket performance manifolds can provide increased airflow. For seamless installation, always choose components designed for your specific Grand Cherokee variant and follow the manufacturer's guidelines for a perfect fit.