Description
Technical Overview & Product Details
O-rings are essential for preventing leaks in high-pressure and high-temperature environments. The “4D” designation typically refers to the specific material grade and hardness (often NBR or FKM/Viton depending on the application) required to meet Yanmar’s stringent marine specifications. This ring is designed to deform slightly under compression, creating a durable, leak-proof seal between two mating components.
- Compatible Engine Type: Yanmar marine propulsion and auxiliary engine series.
- Part Number / Designation: 24316-000750 (4D P75).
- Component Type: O-Ring (Seal).
- Material: High-grade oil-, fuel-, and heat-resistant elastomer (specified to meet OEM thermal and chemical requirements).
- Application: General engine sealing (commonly used in cooling systems, oil circuits, and housing covers).
Key Features & Performance
- Seal Reliability: Engineered for high compression recovery, ensuring it maintains a tight seal even after significant thermal expansion and contraction cycles.
- Chemical Resilience: Formulated to resist degradation from exposure to marine diesel fuel, lubricating oils, and standard engine coolants.
- Precision Sizing: Manufactured to “P-series” (JIS standard) dimensional tolerances, ensuring it fits perfectly within standard O-ring grooves to prevent both over-compression (cracking) and under-compression (leaking).
- Vibration Endurance: Maintains its sealing force even under the intense, high-frequency vibrations found in maritime propulsion environments.
Why Source from Heybeli Marine?
Minor leaks can lead to major operational issues. Heybeli Marine protects your vessel’s performance with:
- Strict OEM Interchangeability: Our 24316-000750 seals match the exact material hardness and dimensional specifications required for Yanmar diesel engines.
- Global Strategic Logistics: We maintain a large, ready-to-ship inventory of these standard sealing components, ensuring your maintenance schedules are met without delay.
- Quality Assurance: Each ring is inspected to ensure it is free from flash, molding defects, or surface imperfections that could lead to premature failure.
- Complete Overhaul Support: We provide these essential O-rings alongside gaskets, V-rings, and other hardware, helping you ensure a reliable, leak-free engine assembly.
Technical Maintenance Note:
To ensure the 24316-000750 provides a long-lasting, leak-proof seal:
- Groove Inspection: The housing groove must be clean and free of corrosion or old material. A dirty groove will prevent the O-ring from seating evenly.
- Lubrication: Use a light coat of clean engine oil or an approved assembly lubricant upon installation. This allows the O-ring to seat properly and prevents it from twisting, which can lead to a “spiral failure.”
- Correct Tooling: Use plastic picks or your fingers to install the ring. Never use a sharp metal screwdriver, as a single scratch in the groove or on the ring surface can become an immediate leak path.
- No Reuse: Once an O-ring has been compressed in an engine environment, it loses its elasticity and “memory.” Always install a brand-new O-ring whenever a component is disassembled.