Honda OEM Spark Plug Tube Seal 12342-6MA-J01 – e:HEV / e:PHEV engines

The genuine Honda OEM spark plug tube seal 12342-6MA-J01 is an original valve cover component designed for the latest Honda e:HEV and e:PHEV hybrid engines. It provides a tight seal around the spark plug tubes, preventing oil leaks and keeping dirt and moisture away from the ignition system. Made from high-temperature resistant rubber, this seal ensures long-lasting durability and proper fitment even under extreme engine conditions.

Application and compatibility

This seal is used in the new-generation hybrid powertrains from the LFB and LFC engine series, combining a gasoline engine with Honda’s electric e:HEV system. It is installed as original equipment in the following models:

• Honda Accord e:HEV (2023–2025) – US market
• Honda Civic 4D e:HEV (2023–2024) – engines LFC1, LFC2, LFC3
• Honda Civic 5D e:HEV (2023–2026) – engines LFC1, LFC3
• Honda CR-V e:HEV (2024–2025) – engines LFB51, LFB16
• Honda CR-V e:PHEV (2024–2025) – engine LFB16
• Honda Prelude (2025–)
• Honda ZR-V e:HEV (2023–2026) – engine LFB17

The 12342-6MA-J01 seal ensures factory-level sealing and perfect fit around the spark plug wells in hybrid engines. Replacement is recommended whenever the valve cover is removed or spark plugs are serviced.

Why choose a genuine Honda OEM seal?

• Authentic Honda component – precision fit and factory-tested quality,
• Resistant to heat, oil, and long-term material degradation,
• Prevents oil leakage and corrosion around spark plug wells,
• Maintains seal integrity throughout hybrid engine temperature cycles,
• Fully compatible with all e:HEV and e:PHEV hybrid powertrains.

FAQ – common questions about the Honda 12342-6MA-J01 seal

1. Does the 12342-6MA-J01 seal fit my car?
Yes – it fits the latest Honda models equipped with e:HEV or e:PHEV systems, including Accord, Civic, CR-V, ZR-V, and Prelude. For confirmation, it’s always best to verify by VIN.

2. Can this seal be reused after disassembly?
Reusing is not recommended. Due to temperature cycling and compression set, Honda advises replacing the seal whenever the valve cover is removed.

3. Is it compatible with valve cover gasket 12341-6MA-J01?
Yes – both parts work together in the same sealing system and are often replaced at the same time during engine maintenance.