Cummins O Ring Seal 3001340 20 – Reliable sealing for secure engine connections

The Cummins O Ring Seal 3001340 20 is designed to provide consistent sealing in critical engine joints where fluid or air control matters most. As part of the Cummins parts portfolio, this O ring helps protect systems from leaks while supporting smooth operation across daily use. Moreover, it follows Cummins genuine paers standards, which helps ensure correct fit and steady performance during service life. Although simple in shape, it plays a key role in maintaining pressure balance and system cleanliness. Therefore, it is commonly chosen for routine maintenance as well as repair work. At the same time, its flexible structure allows easy handling and fast installation.

🔩 Specifications

• Part number: 3001340 20

• Product type: O ring seal

• Brand compatibility: Cummins engines

• Primary function: Seals fluid or air connections

• Material type: Engine-grade elastomer

• Quality level: Cummins genuine paers compliant

⭐ Key Features

First, this O ring seal provides tight contact between mating surfaces, which helps block leaks. In addition, it maintains elasticity during regular temperature changes, so sealing force stays stable. Furthermore, the smooth surface supports even compression, which reduces the risk of early wear. As a result, service intervals can be extended. Also, the O ring supports quick replacement without special tools, which saves time during maintenance. Because it belongs to trusted Cummins parts, consistency across applications is easier to achieve.

⚙️ Technical Insights

The Cummins O Ring Seal 3001340 20 works by compressing within a groove to form a secure barrier. Therefore, it adapts well to small movement between connected parts. Meanwhile, the elastomer material supports repeated pressure cycles found in engine systems. Compared with aged or hardened seals, a new O ring restores proper sealing right away. Consequently, fluid loss and contamination risks are reduced. Since it aligns with Cummins genuine paers guidelines, it integrates smoothly with original engine designs and service procedures.

🛠 Application Scenarios

This O ring seal is widely used in fuel lines, oil passages, cooling circuits, and air systems. For example, it supports leak prevention during component reassembly after inspection. Likewise, it fits overhaul projects where sealing integrity must be renewed. In addition, fleet maintenance teams rely on Cummins parts like this to reduce unexpected downtime. Across these scenarios, reliable sealing helps protect core engine components and supports stable operation.

📦 Availability

This O ring seal 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 to confirm compatibility with Cummins genuine paers before shipment.