Up for auction is a SET 0f (4) VAN KEER spark plug INTENSIFIERS on its original DISPLAY CARD. I believe there would have been 8 of these FIBER/BRASS intensifiers on display card originally (in the lower holes of card). This set comes with its original box.

***INTENSIFIERS were aftermarket items that were used to intensify the spark at the electrode area of spark plug. When a spark jumps a gap, it intensifies in strength resulting in a stronger spark. This was important back in the day due to poor gas standards (compared to today’s standards) and having this intensified spark, could aid in any cylinders that had oil escaping past the rings of piston creating a carbon deposit situation. Many of these intensifiers had ADJUSTABLE GAPS.

**Please note that I always combine shipping costs on multiple items won. Please do not pay invoice until I adjust to the appropriate cost. Thanks for your bidding.**