Mahle B31691 Spark Plug Tube Seal Set

Mahle Spark Plug Tube Seal Set B31691

Mahle B31691 is an OEM-standard spark plug tube seal set made from molded rubber for reliable secondary ignition sealing. It is built for Acura Integra and select Honda applications where worn tube seals can lead to oil intrusion around the spark plug wells.

Key Features

• Molded rubber construction for consistent sealing performance
• OEM Standard item grade for factory-style replacement
• Designed for secondary ignition service on covered Acura and Honda engines
• Paraphrased OE-style sealing solution from Mahle
• Cross-reference: Beck/Arnley 0396383 and Honda 12342-PT2-000 for the same application

Detailed Description

This Mahle spark plug tube seal set, part number B31691, is made to restore the seal between the valve cover and spark plug tubes. Mahle supplies sealing products used by OEMs and technicians worldwide, and this molded rubber design supports a clean, factory-style repair on vehicles such as the Honda Civic, Honda CR-V, Honda Prelude, Acura Integra, and Civic del Sol. If you are servicing a Honda Civic spark plug tube seal leak or replacing aging seals on an Acura Integra, B31691 provides the correct OE-standard fitment for the listed applications.

What It Helps Address

• Oil collecting in spark plug wells
• Hardening or cracking of original tube seals
• Misfire concerns caused by oil contamination around ignition components
• Valve cover sealing issues at the spark plug tube openings
• Maintenance on aging Honda and Acura secondary ignition systems

Installation Notes and Tips

Confirm engine application before installation and inspect the valve cover sealing surfaces for damage, debris, or old seal material. Clean the tube bores thoroughly so the molded rubber seals seat evenly. For best results, replace worn seals during valve cover service and verify that the spark plug wells are dry before reassembly.

Quality Assurance

Mahle is known for sealing products used in OEM and technician service environments, and B31691 is built to OEM-standard specifications for the listed fitments. This part is a direct replacement-style seal set for covered Honda and Acura applications.