will these plugs fit a fr730v kawasaki engine?????

Yes I used these on my Toro Timecutter mower with the same Kawasaki engine. They work fine.

Will this plug fit my Husqvarna Z254F 54 inch zero turn

Check reference books in auto shop or dept. for specifics accompanied to what your whip manual lists.

Is the spark plug pre-gapped or do I need to do it?

They're gapped at about .032"...my application calls for .030", so I adjusted them.

Deliver to EGYPT

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NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper

Product ID: 165151842

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Details

Brand
NGK
Core Material
Copper
Thread Size
12mm x 1.25mm
Top Material Type
Metal
Vehicle Service Type
Kawasaki

⚡Corrugated ribs prevent flashover

🔥Copper core for optimal heat removal

🛡️Trivalent metal plating resists corrosion & seizing

Description

⚡ Ignite your ride with NGK’s pro-grade spark plugs—because every spark counts!

FLASHOVER NOT HERE - Innovative corrugated ribs eliminate spark flashover, boosting ignition consistency
DURABILITY THAT LASTS - Trivalent metal plating guards against corrosion and seizing for long-term reliability
UNMATCHED HEAT MANAGEMENT - Copper core ensures your engine runs cooler and more efficiently
PRECISION FIT FOR KAWASAKI - Designed specifically for Kawasaki vehicles, ensuring seamless installation and peak performance
SUPERIOR STRENGTH TRANSFER - Pure alumina silicate ceramic insulator delivers enhanced durability and heat dissipation

The NGK 6578 Spark Plugs (BPR4ES) pack of 2 features a copper core for superior heat removal, trivalent metal plating for anti-corrosion and anti-seizing, and corrugated ribs to prevent flashover. Engineered with a pure alumina silicate ceramic insulator, these plugs provide enhanced strength and heat transfer, designed specifically for Kawasaki vehicles to ensure optimal ignition performance and durability.

Specifications

Brand	NGK
Core Material	Copper
Thread Size	12mm x 1.25mm
Top Material Type	Metal
Vehicle Service Type	Kawasaki
Automotive Fit Type	Vehicle Specific Fit
UPC	087295465783
Manufacturer	NGK
Item Weight	2.08 ounces
Product Dimensions	3.31 x 0.94 x 1.66 inches
Item model number	6578
Is Discontinued By Manufacturer	No
Manufacturer Part Number	6578
Position	Center

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The product exactly matches the description. Very satisfied with my purchase.

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