TOYOTA 96711-24019 Fuel Injector O-Ring

The TOYOTA 96711-24019 is an original equipment manufacturer (OEM) quality injector O-ring (RING, O) that plays a critical role in maintaining the seal and optimal pressure of the fuel injection system. This precision seal prevents fuel leakage at the connection between the injector and the fuel rail (or cylinder head).

Technical Specifications and Material Composition

Genuine Toyota O-rings are manufactured to strict factory standards, ensuring a perfect fit and long service life:

• Manufacturer: TOYOTA (Original Equipment Manufacturer)
• OEM Part Number: 96711-24019
• Part Type: Injector O-ring
• Material: Special fluoroelastomer (FKM/Viton) compound resistant to high temperatures and aggressive fuels (petrol, diesel, additives).
• Function: Providing a high-pressure seal at the injector mounting point.

Role and Importance of the Injector O-Ring

The fuel injection system operates under extremely high pressure. The function of the O-ring is to hermetically seal the system, preventing pressure loss and fuel leakage into the engine bay. An aged, hardened, or cracked seal can lead to serious operational issues.

Typical Signs of Wear or Failure

• Strong fuel odor in the engine compartment or passenger cabin.
• Difficult cold starting due to fuel pressure drop.
• Rough idle, engine stuttering, or power loss (due to unmetered air intake or improper mixture formation).
• Visible fuel leakage or dampness around the injectors.
• "Check Engine" (MIL) warning light on the dashboard (e.g., trouble codes indicating a lean mixture).

For safe and efficient engine operation, replacing the O-rings is strictly recommended whenever the injectors are removed or cleaned.