Mahle B31718 Spark Plug Tube Seal Set

Mahle B31718 Spark Plug Tube Seal Set

Mahle B31718 is an OEM-standard spark plug tube seal set made from molded rubber for reliable secondary ignition sealing. It is built for Toyota applications where aging tube seals can lead to oil intrusion, misfires, or plug well contamination.

Key Features

• Molded rubber construction for consistent sealing performance
• OEM standard item grade for factory-style replacement
• Designed for secondary ignition service on Toyota engines
• Direct replacement for common OE-style tube seal applications
• Mahle sealing products are trusted by OEMs and technicians worldwide

Detailed Description

This Mahle spark plug tube seal set, part number B31718, is intended for Toyota Camry, Toyota Solara, Toyota RAV4, Toyota Celica, and Toyota MR2 applications listed below. The molded rubber gasket material helps maintain a tight seal around the spark plug tubes, supporting clean ignition components and reducing the chance of oil reaching the plug wells. This part cross-references Beck/Arnley 039-6595 and FEL-PRO ES 70739 for the same application.

Compatible With: Fits 1987-2001 Toyota Camry, N/A; Fits 1999-2001 Toyota Solara, N/A; Fits 1996-2000 Toyota RAV4, N/A; Fits 1987-1999 Toyota Celica, N/A; Fits 1991-1995 Toyota MR2, N/A. Mahle B31718 is a practical OE-style choice when replacing worn spark plug tube seals on Toyota Camry and Celica engines, as well as select RAV4, Solara, and MR2 models.

What It Helps Address

• Oil leaking into spark plug tubes
• Contamination around spark plugs and ignition boots
• Misfire conditions caused by degraded tube seals
• Hard starting or rough running linked to ignition well contamination
• Maintenance needs on aging Toyota valve cover sealing systems

Installation Notes and Tips

Inspect the spark plug tubes, valve cover sealing surfaces, and surrounding ignition components before installation. Clean away oil residue and debris so the new molded rubber seals can seat properly. Follow the vehicle service procedure for the specific Toyota engine application and verify the seal surfaces are free of damage or distortion.

Quality Assurance

Mahle sealing products are engineered to meet OEM-standard expectations for fit and sealing performance. The B31718 is built as a factory-style replacement for the listed Toyota applications.