CHAMPION SPARK PLUG CJ14 #846-1 Replaces RJ14J RJ14J J14J B2LM B2LMY BM4A BM4A10 BMA4A BMR2A BMR4A 1147 4146 5628 Help ensure the continuing performance of your outdoor power equipment's engine with Champion CJ14 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: 3/4 in Resists high operating temperatures (Heat Range 14) Insulator Type: Zirconia enhanced Spark Plug Seat: Gasket Card Blister Pack MPN: CJ14 #846-1 UPC: 037551011124 Purchase is for one spark plug 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.