Purchased two NGK (3481) DCPR6E spark plugs for a Nissan 9.8 HP outboard motor. One of the old plugs had fouled out and the motor had been running very roughly probably on just one cylinder part of the time. The items purchased were as received as described by Amazon and the shipment was delivered in a reasonable amount of time. I installed the new plugs and the outboard motor is now running great and both cylinders are firing 100%.