Cummins Piston Ring Kit 4955366F – Consistent sealing for efficient engine performance

The Cummins Piston Ring Kit 4955366F is engineered to maintain reliable sealing between the piston and cylinder wall, which directly supports efficient combustion and stable engine output. As a core service item within the Cummins parts range, this kit helps control compression, oil consumption, and heat transfer during daily operation. In addition, it follows Cummins genuine paers standards, so it fits original engine designs without adjustment. Although piston rings appear simple, they strongly influence power balance and engine life. Therefore, technicians often choose this kit during scheduled overhauls, piston service, or compression-related repairs. At the same time, proper ring performance reduces blow-by and supports smoother engine response.

🔩 Specifications

• Part number: 4955366F

• Product type: Piston ring kit

• Brand compatibility: Cummins engines

• System location: Engine cylinder and piston assembly

• Primary function: Sealing combustion pressure and controlling oil

• Quality level: Cummins genuine paers compliant

⭐ Key Features

First, this piston ring kit delivers strong and stable cylinder sealing. In addition, it helps maintain correct compression across operating ranges. Moreover, the ring surfaces support controlled oil film distribution, which reduces friction during movement. As a result, wear decreases and service life extends. Also, the balanced ring tension supports smooth piston motion and stable combustion. Because it belongs to trusted Cummins parts, users can expect consistent performance during long service cycles.

⚙️ Technical Insights

The Cummins Piston Ring Kit 4955366F works by sealing the combustion chamber while regulating oil on the cylinder wall. Therefore, it helps the engine convert fuel energy into usable power more efficiently. At the same time, proper sealing limits gas leakage and reduces oil loss. When technicians install a fresh ring kit, compression levels recover quickly. Consequently, engine power, fuel efficiency, and stability improve. Since it follows Cummins genuine paers design rules, the kit aligns precisely with original pistons and cylinders.

🛠 Application Scenarios

This piston ring kit is widely used in industrial engines, generator sets, and heavy-duty equipment. For example, it supports engines that run for long hours under steady load. Likewise, it fits repair tasks related to low compression, high oil consumption, or engine rebuild projects. Service teams rely on Cummins parts like this kit to restore proper sealing and reduce future maintenance risk. Across these scenarios, Cummins genuine paers help maintain dependable engine operation and predictable performance.

📦 Availability

This piston ring kit is in stock and available for global shipping. To ensure correct fitment with your Cummins parts configuration, please provide your engine serial number (ESN). Our support team is ready to assist with verification and confirm compatibility with Cummins genuine paers before shipment.