Cummins Rectangular Ring Seal C3906697 – Durable Sealing for DCEC Engine Assemblies
The Cummins Rectangular Ring Seal C3906697 is designed to deliver a dependable seal between engine components where a rectangular profile offers better compression and fit. Engineered specifically for DCEC parts configurations, this seal helps prevent oil or coolant leaks while maintaining the internal pressure balance critical for optimal engine performance. As part of the Cummins genuine parts range, it ensures durability and compatibility across numerous Cummins parts systems.
📦 Specifications
- Part Number: C3906697
- Part Name: Rectangular Ring Seal
- Material: Heat-resistant synthetic rubber
- Shape: Rectangular cross-section
- Condition: 100% Brand New
- Category: Engine Seals & Gaskets
- Origin: Manufactured under Cummins OEM quality standards
- Compatibility: Specially developed for DCEC parts systems
✅ Key Features
- Provides a tight, form-fitting seal between machined surfaces
- Resists deformation under thermal cycling and pressure
- Prevents oil, coolant, or gas leakage effectively
- Helps maintain engine cleanliness and performance
- Fully compatible with Cummins genuine parts and DCEC parts
🔧 Technical Insights
Unlike standard round O-rings, the C3906697 Rectangular Ring Seal features a flat-sided profile that offers greater contact area and compression stability. This design reduces the risk of extrusion and improves sealing efficiency in static applications. Thanks to its advanced rubber formulation, the seal retains flexibility and sealing properties even after prolonged exposure to heat and engine fluids.
Moreover, it ensures tight integration with other Cummins parts, especially in demanding DCEC parts environments.
💡 Application Scenarios
This rectangular ring seal is commonly used in:
- 🔹 Cylinder head assemblies and valve covers on DCEC engines
- 🔹 Sealing connections between engine blocks and housings
- 🔹 Routine maintenance and engine overhauls
- 🔹 Diesel engine applications requiring robust seal integrity
- 🔹 Equipment depending on Cummins genuine parts for long-term service
🚚 Availability
The Cummins Rectangular Ring Seal C3906697 is available for immediate dispatch with global shipping options.
For exact fitment, please provide your Engine Serial Number (ESN). We’re here to help you select the correct DCEC parts and other Cummins parts for your application.
