Various problems affect spark plugs. This can be heat and cracks in coil boots, or the parts that connect the plugs to coils, causing misfires, poor acceleration, and rough starts. Related issues are abrasion, heat, and vibration damage in the Spark Plug Ignition Cables, meaning plugs don't get enough voltage for efficient ignition. Coils, plugs, and Replacement Spark Plugs are relatively easy to diagnose and inexpensive to fix.
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DENSO Direct Ignition Coil Boot Kit for 2003-2009 Toyota 4Runner 4.7L V8Special Price $69.70 Regular Price $99.99 -
3 pc NGK Ignition Coil Boots for 1996-2002 Toyota 4Runner 3.4L V6Special Price $32.56 Regular Price $46.99 -
4 pc NGK Ignition Coil Boots for 2010 Toyota 4Runner 2.7L L4Special Price $39.93 Regular Price $56.99 -
DENSO Direct Ignition Coil Boot Kit for 2010-2015 Toyota 4Runner 4.0L V6Special Price $56.78 Regular Price $80.99 -
6 pc NGK Ignition Coil Boots for 2003-2018 Toyota 4Runner 4.0L V6Special Price $59.48 Regular Price $84.99 -
8 pc NGK Ignition Coil Boots for 2003-2009 Toyota 4Runner 4.7L V8Special Price $75.44 Regular Price $107.99 -
DENSO Direct Ignition Coil Boot Kit for 1996-2002 Toyota 4Runner 3.4L V6Special Price $79.22 Regular Price $112.99
























