Cummins O Ring Seal 3632840 – Genuine Sealing Solution for Diesel Engines
The Cummins O Ring Seal 3632840 is a vital sealing component engineered to ensure leak-free performance in high-pressure fuel and oil systems. As part of the trusted lineup of Cummins genuine parts, this O-ring delivers the durability and reliability demanded by modern diesel engines under continuous load and temperature stress.
🔧 Specifications
- Part Number: 3632840
- Part Name: O Ring Seal
- Material: Fluoroelastomer (FKM/Viton® equivalent)
- Color: Standard Black or Brown (depending on batch)
- Cross-Section Type: Round
- Temperature Range: -20°C to +200°C
- Condition: Brand New, Direct OEM Replacement
- Application Type: Fuel/Oil sealing systems
- Compatibility: Specific Cummins engine models (verify by ESN)
⭐ Key Features
- Manufactured to exacting Cummins OEM standards for proper fit and chemical compatibility
- Fluoroelastomer material provides superior resistance to heat, fuel, and oil degradation
- Designed for tight sealing under thermal cycling and long-term pressure exposure
- Prevents leakage that could lead to fuel inefficiency or system contamination
- Essential for maintaining proper operation in fuel pump assemblies, oil galleries, or injector sleeves
⚙️ Technical Insights
- Compression Set Resistance: Optimized to retain shape after repeated compression cycles
- Dimensional Precision: Accurate tolerances ensure proper groove fit and consistent sealing
- Vibration and Shock Resistant: Suitable for high-vibration diesel engine environments
- OEM Compliance: Designed as a drop-in replacement for factory-installed O-rings
🛠 Application Scenarios
The Cummins 3632840 O Ring Seal is widely used in:
- Medium and heavy-duty diesel engines
- Fuel pump housings and fuel rail seals
- Turbocharger oil lines or pressure return systems
- Oil cooler assemblies or timing cover seals
Whether for fleet maintenance or engine rebuilds, this O-ring is a critical solution among trusted Cummins parts to ensure leak-proof operation.
📦 Availability
In stock and ready for immediate shipment.
For compatibility confirmation, please contact us with your engine serial number (ESN).
Worldwide shipping and technical support are available.
