Beck/Arnley Coil Boot P/N:175-1040
Keep the spark traveling cleanly from coil to plug with the Beck/Arnley Coil Boot 175-1080, an ignition coil boot built as a direct-fit replacement for the 2004-2006 Subaru Baja, 2004-2010 Subaru Forester, 2004-2010 Subaru Impreza, 2005-2009 Subaru Legacy, and 2005-2009 Subaru Outback. The boot insulates the high-voltage connection between the ignition coil and the spark plug, and a cracked or hardened boot can allow arcing, misfires, and rough running — signs this part may need replacing. See the Buyer's Guide tab for engine-level fitment.
Beck/Arnley parts are designed as direct replacements for Original Equipment applications across foreign nameplates, with careful attention to form, fit, and function so you can install the right part with confidence.
Interchange: SPB184 · 184082 · SPP121E · 22433AA540 · W01331889378
This part cross-references / interchanges with the following part numbers:
What does this coil boot do?
It insulates the high-voltage connection between the ignition coil and the spark plug, helping deliver the spark cleanly to the plug.
What vehicles does the 175-1080 fit?
It fits the 2004-2006 Subaru Baja, 2004-2010 Forester, 2004-2010 Impreza, 2005-2009 Legacy, and 2005-2009 Outback. See the Buyer's Guide tab for engine details.
What is the boot made of?
It uses silicone construction for insulation and heat resistance, plus a stainless steel conductor spring that helps protect against corrosion.
What are signs the coil boot may need replacing?
A cracked, hardened, or arcing boot can contribute to misfires and rough running. Diagnose the cause before replacing, as other ignition parts can cause the same symptoms.
What numbers does this part interchange with?
It cross-references SPB184, 184082, SPP121E, 22433AA540, and W01331889378.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.