Fuel Injector Insulating Ring 13 537 564 751

Maintain precise fuel delivery and protect your engine’s injectors with the genuine fuel injector insulating ring (part 13 537 564 751). This engineered elastomer ring sits between the injector and cylinder head, providing a leak-proof seal, vibration dampening and thermal isolation to ensure consistent performance and longevity.

Key Benefits

• Exact OEM Fit
  Manufactured to BMW’s original CAD dimensions for seamless drop-in replacement—no modifications required.

• Thermal Isolation
  High-temperature elastomer resists heat transfer from the cylinder head to the injector body, preserving injector electronics and fuel atomization.

• Vibration Dampening
  Resilient material absorbs engine vibrations, reducing injector wear and noise for smoother idling and operation.

• Leak-Proof Sealing
  Precision-molded profile ensures uniform compression around the injector bore, preventing fuel or combustion gas leaks.

• Chemical Resistance
  Elastomer compound withstands exposure to gasoline, additives and engine oils without swelling or degradation.

Technical Specifications

• Part Number: 13 537 564 751

• Material: Heat-resistant nitrile rubber (NBR) or FKM variant

• Inner Diameter: 8.0 mm

• Outer Diameter: 12.5 mm

• Cross-Section Height: 2.0 mm

• Operating Temperature: –40 °C … +150 °C

• Compatibility: Fits BMW engines using direct-injection injectors specifying this ring

• Warranty: 24 months genuine-parts coverage

Installation Overview

1. Relieve Fuel Pressure: Follow manufacturer procedure to depressurize the fuel rail.

2. Remove Injector: Unplug injector electrical connector and carefully extract the injector from the cylinder head.

3. Clean Bore: Wipe the injector port of carbon deposits and oil residue.

4. Inspect & Fit Ring: Slide the new insulating ring over the injector tip, ensuring full seating.

5. Reinstall Injector: Insert the injector straight into the bore until it seats firmly.

6. Reconnect & Test: Reattach electrical connector, repressurize fuel system, and verify leak-free operation.