Bosch Spark Plug P/N:6721
Bosch 6736 spark plug for the 1990-1998 Hyundai Sonata V6 3.0L, the 1999-2005 Sonata 4-cylinder 2.4L and other vehicles creates the spark that ignites the air-fuel mixture in each cylinder. This Bosch spark plug has a fine wire platinum firing pin that needs up to 24% less voltage to ignite and lasts up to 2 times longer than standard copper spark plugs, and it is engineered to meet or exceed Original Equipment specifications for platinum spark plugs.
Hard starting, a rough idle or a misfire can mean worn plugs, but worn ignition wires or a weak ignition coil can also be behind them, so find the cause before you replace the plugs.
Hyundai Sonata spark plugs in this number cover the 1990-1998 Sonata V6 3.0L, which takes six, and the 1999-2005 Sonata 4-cylinder 2.4L, which takes four. The same platinum plug fits the 1984-1985 Honda Accord 4-cylinder 1.8L, the 1986-1989 Accord 4-cylinder 2.0L and the 2001-2006 Kia Optima 4-cylinder 2.4L, and each of those takes four.
Fit and size
Build and materials
One spark plug. No additional accessories are included.
Product information is for general reference and may contain errors. See our Disclaimer.
Is Bosch 6736 a Honda Accord spark plug for the 1984-1985 Honda Accord 4-cylinder 1.8L and the 1986-1989 Accord 4-cylinder 2.0L?
Yes. Bosch 6736 fits both of those Accord runs, and each takes four plugs. If your car is not named here, find it in the "Vehicles it fits" section.
Will this Kia Optima spark plug fit a 2001-2006 Kia Optima 4-cylinder 2.4L?
Yes. The Bosch 6736 platinum plug fits the 2001-2006 Kia Optima 4-cylinder 2.4L, and that engine takes four.
Is this one of the Bosch double iridium spark plugs?
No. Bosch 6736 is a fine wire platinum spark plug with a platinum firing pin on the center electrode.
Do I need to gap this platinum spark plug or use anti-seize on it?
No. This plug comes pre-gapped and has nickel plated threads, so it needs no gap adjustment and no anti-seize.
What warranty comes with this Bosch spark plug?
Bosch backs it with a 4 year customer satisfaction guarantee and a 1 year Technician Warranty. Details are at www.boschautoparts.com/sparkplugs.
Published by the manufacturer of this part. Links open in a new tab.
No reviews yet — be the first to review this product.
Write a Review
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.