Subaru OEM Spark Plug Tube Seal Baja / Forester / Impreza / Legacy / Outback | 10966AA030

Overview

The Genuine Subaru OEM Spark Plug Tube Seal (Part #10966AA030) is an exact-fit replacement seal designed to prevent oil from leaking into the spark plug tubes on Subaru EJ-series engines. Engineered to factory specifications, this OEM seal is the ideal solution for Subaru owners experiencing oil fouling on spark plugs or oil seepage around valve cover areas. Choosing a genuine Subaru part ensures a perfect fit, reliable sealing performance, and long-term engine protection.

Key Features & Benefits

• Genuine OEM Quality – Manufactured to Subaru factory specifications for exact dimensional accuracy and long-lasting sealing performance.
• Prevents Oil Contamination – Creates a positive seal around the spark plug tube to stop oil from entering and fouling spark plugs, ensuring optimal ignition performance.
• Exact-Fit Guarantee – Designed specifically for Subaru EJ-series engines; no trimming, modification, or adaptation required.
• Durable Material – Made from high-quality rubber/elastomer compound engineered to withstand engine heat cycles and exposure to motor oil.
• Factory Warranty Coverage – Backed by Subaru's genuine parts warranty for added peace of mind.
• Cost-Effective Repair – Replacing a worn tube seal promptly prevents more costly repairs caused by oil-fouled plugs and misfires.

What's Included

• 1x Genuine Subaru Spark Plug Tube Seal – Part #10966AA030

Specifications

Fitment & Compatibility

This genuine Subaru spark plug tube seal is compatible with the following vehicles:

2003-2006 Subaru Baja

1999-2010 Subaru Forester

1999-2010 Subaru Impreza

1999-2007 Subaru Legacy

2009-2012 Subaru Legacy

2000-2004 Subaru Legacy GT

1999-2012 Subaru Outback

Note: Please confirm your vehicle's engine code and model year before ordering. If you are unsure of compatibility, reference your Subaru VIN or consult a Subaru parts catalog using part number 10966AA030.

Installation

Replacing the spark plug tube seal is typically performed as part of a valve cover gasket service. The procedure involves removing the valve cover, extracting the old tube seals, and pressing or seating the new seals into position before reinstalling the valve cover with a new gasket. This is a moderate DIY repair for experienced home mechanics; however, professional installation by a qualified Subaru technician is recommended to ensure proper torque specs and sealing. No specialized tools beyond standard hand tools and a torque wrench are required.