Home / 2 NGK Spark Plug - For EZ5221 Husqvarna Lawn Mower
2 NGK Spark Plug - For EZ5221 Husqvarna Lawn Mower
$16.77
Free shipping on all orders.
Qty In Stock: 20
The NGK 6578 Spark Plug (BPR4ES) is a heavy-duty copper-core plug for Husqvarna lawn mowers, providing excellent ignition performance, strong fuel burn, and durability in demanding mower engine environments.
Features & Benefits:
🔧 Copper core improves thermal conductivity and ignition strength
🔧 Nickel alloy electrode resists fouling and premature wear
🔧 Trivalent plating protects threads from corrosion
🔧 Compatible with various Husqvarna 4-stroke engines
Specifications:
Brand & Part Number: NGK 6578 BPR4ES
Material: Copper
Thread Size: 14mm
Reach: 19mm (0.75 in.)
Hex Size: 13/16 in. (20.6mm)
Seat Type: Gasket
Resistor: Yes
Gap: 0.036 in. (0.9mm)
Choose NGK BPR4ES for strong, reliable performance in your Husqvarna lawn mower—order now!
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
