Shop › Spark Plug Honda GX390 Image 1 of 1 Spark Plug Honda GX390 $16.50 Quantity: Add To Cart Added! You Might Also Like 1L Engine Oil – 10w30 $16.50 Briggs & Stratton Air Filter (Inner) $75.90 Gear Oil 4L $53.90 Vanguard Oil Drain Plug 27HP / 31HP $31.90 Honda Lanolin Spray 500g $33.00