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.

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

Product ID: 328933686

Details

Brand
NGK
Core material
Copper
Thread size
14mm
Top material type
Alumina
Vehicle service type
Motorcycle

⚡Corrugated ribs prevent flashover

🔥Copper core for superior heat removal

🛡️Trivalent metal plating resists corrosion & seizing

191.10 DT

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Description

⚡ Ignite Performance, Leave Others in the Dust!

FLASHOVER NOT HERE - Innovative corrugated ribs eliminate flashover, guaranteeing consistent ignition every time.
DURABILITY THAT LASTS - Trivalent metal plating delivers top-tier anti-corrosion and anti-seizing protection for long-lasting performance.
STRENGTH MEETS PRECISION - Pure alumina silicate ceramic insulator offers superior strength and optimal heat transfer.
TRUSTED BY PROFESSIONALS - NGK’s 6578 spark plugs are a go-to choice with 4.8-star ratings from over 3,200 users.
UNMATCHED HEAT MANAGEMENT - Copper core technology ensures your engine runs cooler and more efficiently.

The NGK 6578 Spark Plugs (BPR4ES) pack of 2 features a copper core for enhanced heat dissipation, trivalent metal plating for superior corrosion resistance, and corrugated ribs to prevent flashover. Designed with a pure alumina silicate ceramic insulator, these plugs deliver reliable ignition and durability, making them a trusted choice for motorcycle enthusiasts seeking peak engine performance.

Specifications

ASIN	B07CCGGMNZ
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	172,840 in Automotive ( See Top 100 in Automotive ) 845 in Car Spark Plugs
Brand	NGK
Brand Name	NGK
Compatible with Vehicle Type	Motorcycle
Core Material	Copper
Core material	Copper
Customer Reviews	4.8 out of 5 stars 3,235 Reviews
Item Weight	0.13 Pounds
Manufacturer	NGK
Manufacturer Part Number	6578
Model Number	6578
Number of items	1
Thread Size	14mm
Thread size	14mm
Top Material Type	Alumina
Top material type	Alumina
UPC	087295465783
Vehicle service type	Motorcycle

Reviews

R**G

4 Pack Great Deal NGK's

There are legit and great replacements. The 4 pack is super convenient.

11.05.2026

S**N

Sprakplugs work great

Works great

9.08.2025

S**T

Perfect

Just right

24.03.2026

H**P

NGK plugs are the best.

Came pre-gapped and in good condition. As advertised. No issues. A+

26.05.2026

B**N

Quality plugs

Work great in my Kawasaki F451V mower engine.

5.06.2026

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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191.10 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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