Maintain proper fuel system sealing and reliable engine performance with the Genuine Honda Fuel Injector O-Ring (91302-PNA-003). This factory replacement O-ring is designed to provide a secure, leak-resistant seal at the designated fuel injector connection on compatible Honda and Acura engines.

Manufactured to Honda's original equipment specifications by NOK, this precision-engineered O-ring measures 7.45mm x 3.61mm and is designed to maintain a reliable seal under normal engine operating conditions.

Fuel injector O-rings are essential components of the fuel delivery system. They help prevent fuel leakage, maintain proper sealing between mating components, and support consistent fuel system operation. Over time, exposure to heat, fuel, and repeated temperature changes can cause injector seals to harden, flatten, or deteriorate.

Whether you're replacing a leaking fuel injector seal, servicing your fuel rail, or rebuilding a Honda engine, the Genuine Honda 91302-PNA-003 O-ring provides OEM-quality fitment and dependable sealing performance.

Features

• Genuine Honda OEM Part: Manufactured to Honda's original factory specifications for proper fitment and reliable performance.

• Precision Dimensions: Measures 7.45mm x 3.61mm for applications requiring this specific O-ring size.

• NOK Manufacturing: Produced by NOK, an established manufacturer of automotive sealing components.

• Reliable Fuel System Sealing: Helps prevent fuel leakage at the designated fuel injector sealing location.

• Fuel-Resistant Construction: Designed for use in compatible automotive fuel system applications.

• Heat and Pressure Resistance: Engineered to withstand normal fuel system operating conditions.

• Direct OEM Replacement: Replaces the original seal without requiring modifications when used in the correct application.

• Helps Maintain Fuel System Integrity: Supports consistent fuel delivery by maintaining a proper seal.

• Ideal for Injector Maintenance: Recommended when servicing or removing fuel injectors where this seal is specified.

• OEM Reliability: An excellent choice for factory repairs, engine rebuilds, and performance applications retaining compatible Honda fuel injectors.

Additional Information

Manufacturer: Honda Motor Co., Ltd.

Brand: Genuine Honda OEM

Honda Part Number: 91302-PNA-003

Product Name: Fuel Injector O-Ring

OEM Description: O-Ring (7.45 x 3.61) (NOK)

Manufacturer: NOK

Nominal Dimensions: 7.45mm x 3.61mm

Component Type: Fuel Injector Sealing O-Ring

Material: OEM fuel-resistant elastomer; exact compound not specified

Installation Location: Designated fuel injector sealing position, depending on application

Fitment Type: Direct OEM Replacement

Quantity: Sold Individually

Condition: New

Additional Notes: Some Honda fuel injector assemblies use multiple O-rings, insulators, and sealing components. Confirm the exact location and quantity required using the applicable Honda parts diagram.

Common Reasons for Replacement

• Fuel Leaks: Damaged or deteriorated injector O-rings can allow fuel to escape from the affected connection.

• Aging and Hardening: Prolonged exposure to heat and fuel can cause rubber seals to lose flexibility and sealing effectiveness.

• Fuel Injector Removal: O-rings may become damaged, stretched, or pinched when injectors are removed or reinstalled.

• Fuel Rail Maintenance: Replacing disturbed injector seals helps reduce the possibility of leaks after servicing.

• Engine Rebuilds: Installing fresh OEM seals is recommended when assembling or servicing the fuel injection system.

• Damaged Sealing Surfaces: A cut, flattened, or deformed O-ring may no longer provide an adequate seal.

• Preventative Maintenance: Replacing aged seals during fuel injector service can help avoid future fuel system leaks.

Installation Notes

1. Verify Compatibility: Confirm that Honda part number 91302-PNA-003 is specified for your vehicle, fuel injector, and sealing location.

2. Relieve Fuel Pressure: Follow the factory service procedure to safely relieve fuel system pressure before disconnecting fuel lines or removing injectors.

3. Disconnect the Battery: Disconnect the negative battery terminal before beginning fuel system service.

4. Remove the Fuel Injector: Carefully remove the fuel rail or injector assembly as required by the vehicle's service manual.

5. Remove the Old O-Ring: Gently remove the existing seal without scratching the injector or damaging the sealing groove.

6. Inspect the Sealing Surfaces: Check the injector, fuel rail, and mating components for contamination, corrosion, scratches, or other damage.

7. Lubricate the New O-Ring: Apply a light coating of clean engine oil or an approved lubricant specified by the Honda service manual to prevent the seal from twisting or tearing during installation.

8. Install the New Seal: Position the O-ring correctly in its designated groove, ensuring it is not stretched, twisted, pinched, or damaged.

9. Reinstall the Injector Assembly: Reassemble the fuel injector and fuel rail components according to Honda's factory installation procedures and torque specifications.

10. Check for Leaks: Restore fuel pressure and carefully inspect all serviced connections for leakage before operating the vehicle.

Important: Never reuse damaged or deformed fuel injector O-rings. Fuel leaks can create a serious fire hazard, so all connections must be inspected carefully after installation.

What's Included

• (1) Genuine Honda Fuel Injector O-Ring – Part Number 91302-PNA-003

Note: This product includes one individual O-ring. Fuel injectors, fuel rails, additional seals, and installation hardware are sold separately unless otherwise specified.

Closing Product Summary

The Genuine Honda Fuel Injector O-Ring (91302-PNA-003) is an essential replacement component for maintaining proper fuel system sealing on compatible Honda and Acura engines. Featuring OEM-quality NOK construction and precise 7.45mm x 3.61mm dimensions, this seal is designed to restore dependable fuel injector sealing performance.

Whether you're completing routine maintenance, replacing a leaking injector seal, or assembling a K-Series engine, choosing genuine Honda components helps ensure proper fitment and long-term reliability.