Champion Spark Plug RJ12C #592 #592M #592s Replaces RJ12YC J12 J12J J12JM KJ12 QJ12 RJ12 XJ12 XJ12J Select: Box, Card (Marine) or Shop Pack Brand: Champion Purchase is for one spark plug Help ensure the continuing performance of your outdoor power equipment's engine with Champion RJ12C Spark Plug for Mowers, Chain Saws, Pumps and Trimmers. The spark plug has a 14mm thread and withstands high temperatures. For use in small engines on outdoor power equipment Compatible with lawn mowers, chain saws, pumps and trimmers Thread: 14 mm Reach: 0.375 inch (9.5 mm) Wrench Hex Size: 13/16 in Gap 0.030 in (0.75mm) Spark Plug Seat: Gasket MPN: RJ12C #592 UPC Box Pack: 037551000593 MPN: RJ12C #592M UPC Card Pack: 037551011629 (Marine Grade) MPN: RJ12C #592s UPC Shop Pack: 037551108923 USA domestic shipments are shipped USPS Ground Advantage Mail with Tracking When buying different variations from the same or similar listings, the lowest shipping cost is obtained by buying the total number of units wanted from 'One Variation' and then leaving a message within your order defining what items you want to receive and the number of each item you want to receive. The number of items requested cannot exceed the number shown as being in stock. This stops from restarting the total weight summation for each variation. The message link is on the same page where you select method of payment.USPS postage cost is based on total weight and zip code. The cost breakdown is shown before payment is required and the discount for multiple purchases is shown as a separte credit in the list.