Champion Spark Plug CJ7Y #853-1 Replaces: 018-3386-4, SELECT: Card Box or Shop Pack With the Champion CJ7 Spark Plug for Chain Saws and Pumps, you can keep outdoor power equipment engines in good shape. The spark plug is built to withstand high temperature, and it features 14mm threading. For use with chain saws and pumps Fits most small-engine brands and models Designed to withstand high temperatures 14 mm thread, 9-1/2 mm reach and 13/16 mm hex size Non-resistor Card Blister Pack Model: CJ7Y MPN: 853-1 UPC: 037551011162 Box Pack Model: CJ7Y MPN: 853 UPC: 037551000531 Card Shop Pack Model: CJ7Y MPN: 853 Shop Pack plugs are from a Bulk Shop Pack and are shipped wrapped in individual bubble wrap units. Purchase is for one 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.