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Yanmar 24316-000440 O-Ring (4D P44)

Heybeli Marine is a leading global supplier of high-precision engine components for Japanese marine diesel engines. The Yanmar 24316-000440, identified as a 4D P44 O-Ring, is a critical sealing element designed for a wide range of fluid-handling systems within your Yanmar engine. The “P44” designation identifies its standardized sizing, while the “4D” specification denotes the high-grade elastomeric material properties necessary to withstand the rigorous demands of a marine engine room.

Category: Brand: Product ID: 19396

Description

Technical Overview & Product Details

O-rings are vital for maintaining system pressure and preventing fluid migration between engine components. The 24316-000440 is engineered to provide a robust, reliable seal in environments frequently exposed to oil, fuel, or coolant, as well as significant thermal fluctuations and constant mechanical vibration.

  • Compatible Engine Type: Yanmar marine propulsion and auxiliary engine series.
  • Part Number / Designation: 24316-000440 (4D P44).
  • Component Type: O-Ring (Seal).
  • Material: High-performance synthetic elastomer (chemically resistant and thermally stable).
  • Application: General engine sealing (often used in fluid pipes, pump housings, and cover interfaces).

Key Features & Performance

  • Reliable Seal Integrity: Engineered to maintain a hermetic or fluid-tight barrier, even when subjected to pressurized systems or varying temperatures.
  • Excellent Compression Set Resistance: Formulated to maintain its “memory” (elasticity) over time, ensuring the seal remains effective throughout its service life without flattening or hardening.
  • Marine-Grade Durability: Designed to resist degradation from fuel, lubricating oils, and common engine coolants.
  • Dimensional Accuracy: Manufactured to strict JIS standards for P-series O-rings, ensuring an exact “squeeze” and fit within its designated groove to prevent leaks.

Why Source from Heybeli Marine?

A failing O-ring can cause everything from minor weeping to critical fluid loss. Heybeli Marine protects your vessel’s performance with:

  • Strict OEM Interchangeability: Our 24316-000440 O-rings 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 you have the necessary parts for your maintenance schedules.
  • Quality Assurance: Each ring is carefully inspected for molding integrity and surface finish, guaranteeing consistent performance across all installations.
  • Complete Overhaul Support: We provide these essential O-rings alongside gaskets, V-rings, and other sealing hardware to ensure your engine assembly is professional and leak-free.

Technical Maintenance Note:

To ensure the 24316-000440 provides a long-lasting, leak-proof seal:

  1. Preparation: Always clean the housing groove thoroughly of old residue, debris, and corrosion. Even minor contaminants can prevent the O-ring from seating evenly and lead to early failure.
  2. Installation Lubrication: Apply a thin, uniform film of clean engine oil or an approved assembly lubricant to the O-ring before installation. This reduces friction and prevents the ring from twisting during seating.
  3. Avoid Sharp Tools: Never use metal screwdrivers or sharp picks to install or remove O-rings. A single scratch in the groove or on the ring surface can lead to a path for leaks. Use plastic probes or your fingers.
  4. One-Time Use: O-rings undergo permanent structural compression when installed. For this reason, never reuse an O-ring; always use a new one whenever a component is disassembled.

Additional information

Brand

Yanmar