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The NGK 4578 Nickel Spark Plug is engineered to deliver consistent ignition performance and long-lasting reliability for a wide range of ATV and motorcycle applications. Designed to meet or exceed original equipment specifications, this plug features a nickel alloy electrode that ensures stable spark delivery and dependable combustion across various engine conditions. Compatible with multiple models from Arctic Cat, Kawasaki, Suzuki, Yamaha, and Kymco, it provides a versatile replacement option trusted by riders and technicians alike.
Manufactured with NGK’s high-quality alumina silicate ceramic insulator, this plug offers exceptional dielectric strength and resistance to thermal shock, maintaining reliable operation under extreme temperature fluctuations. The solid copper core enhances heat transfer and electrical conductivity, supporting smoother throttle response and improved efficiency. A triple gasket seal prevents combustion gas leakage, while the trivalent metal plating resists corrosion and facilitates easy installation and removal. Designed to withstand vibration, heat, and demanding riding conditions, the NGK 4578 ensures optimal performance and extended service life for your engine.
Features:
OE-quality nickel alloy electrode for consistent spark and reliable ignition
High-grade alumina silicate ceramic insulator for superior dielectric strength
Solid copper core for improved heat dissipation and conductivity
Triple gasket sealing to prevent combustion gas leakage
Corrosion-resistant trivalent metal plating for long-term durability and anti-seize protection
Fitment:
1995 Kawasaki VN800A Vulcan 800 Base
1996 Kawasaki VN800A Vulcan 800 Base
1996 Kawasaki VN800B Vulcan 800 Classic Base
1997 Kawasaki VN800A Vulcan 800 Base
1997 Kawasaki VN800B Vulcan 800 Classic Base
1998 Kawasaki VN800A Vulcan 800 Base
1998 Kawasaki VN800B Vulcan 800 Classic Base
1999 Kawasaki VN800A Vulcan 800 Base
1999 Kawasaki VN800B Vulcan 800 Classic Base
2000 Kawasaki VN800A Vulcan 800 Base
2000 Kawasaki VN800B Vulcan 800 Classic Base
2001 Kawasaki BN125 Eliminator Base
2001 Kawasaki VN800A Vulcan 800 Base
2001 Kawasaki VN800B Vulcan 800 Classic Base
2001 Kawasaki VN800E Vulcan 800 Drifter Base
2002 Kawasaki BN125 Eliminator Base
2002 Kawasaki VN800A Vulcan 800 Base
2002 Kawasaki VN800B Vulcan 800 Classic Base
2002 Kawasaki VN800E Vulcan 800 Drifter Base
2002 Suzuki LT-A400 Eiger 2x4 Auto Base
2002 Suzuki LT-A400F Eiger 4x4 Auto Base
2002 Suzuki LT-F400 Eiger 2x4 Base
2002 Suzuki LT-F400F Eiger 4x4 Base
2003 Kawasaki BN125 Eliminator Base
2003 Kawasaki KFX400 Base
2003 Kawasaki VN800A Vulcan 800 Base
2003 Kawasaki VN800B Vulcan 800 Classic Base
2003 Kawasaki VN800E Vulcan 800 Drifter Base
2003 Suzuki LT-A400 Eiger 2x4 Auto Base
2003 Suzuki LT-A400F Eiger 4x4 Auto Base
2003 Suzuki LT-F400 Eiger 2x4 Base
2003 Suzuki LT-F400F Eiger 4x4 Base
2003 Suzuki LT-F500F Vinson 500 4x4 Base
2003 Suzuki Lt-Z400 QuadSport Z Base
2004 Arctic Cat 400 4X4 Auto Base
2004 Kawasaki BN125 Eliminator Base
2004 Kawasaki KFX400 Base
2004 Kawasaki KFX700 Base
2004 Kawasaki KVF700 Prairie 4x4 Base
2004 Kawasaki VN800A Vulcan 800 Base
2004 Kawasaki VN800B Vulcan 800 Classic Base
2004 Kawasaki VN800E Vulcan 800 Drifter Base
2004 Suzuki LT-A400 Eiger 2x4 Auto Base
2004 Suzuki LT-A400F Eiger 4x4 Auto Base
2004 Suzuki LT-F400 Eiger 2x4 Base
2004 Suzuki LT-F400F Eiger 4x4 Base
2004 Suzuki LT-F500F Vinson 500 4x4 Base
2004 Suzuki LT-V700F Twin Peaks 700 4x4 Base
2004 Suzuki Lt-Z400 QuadSport Z Base
2004 Yamaha YJ125 Vino 125 Base
2005 Arctic Cat 400 4X4 Auto Base
2005 Arctic Cat 400 4X4 Auto Vp Base
2005 Arctic Cat DVX 400 Base
2005 Kawasaki BN125 Eliminator Base
2005 Kawasaki KFX400 Base
2005 Kawasaki KFX700 Base
2005 Kawasaki KVF700 Prairie 4x4 Base
2005 Kawasaki KVF750 Brute Force 4x4i Base
2005 Kawasaki VN800A Vulcan 800 Base
2005 Kawasaki VN800B Vulcan 800 Classic Base
2005 Kawasaki VN800E Vulcan 800 Drifter Base
2005 Suzuki LT-A400 Eiger 2x4 Auto Base
2005 Suzuki LT-A400F Eiger 4x4 Auto Base
2005 Suzuki LT-F400 Eiger 2x4 Base
2005 Suzuki LT-F400F Eiger 4x4 Base
2005 Suzuki LT-F500F Vinson 500 4x4 Base
2005 Suzuki LT-V700F Twin Peaks 700 4x4 Base
2005 Suzuki Lt-Z400 QuadSport Z Base
2005 Yamaha YJ125 Vino 125 Base
2005 Yamaha YP400 Majesty Base
2006 Aprilia Pegaso 650 Trail Base
2006 Arctic Cat 400 4X4 Auto Base
2006 Arctic Cat 400 4X4 Auto Vp Base
2006 Arctic Cat DVX 400 Base
2006 Arctic Cat DVX 400 TS Base
2006 Kawasaki BN125 Eliminator Base
2006 Kawasaki KFX400 Base
2006 Kawasaki KFX700 Base
2006 Kawasaki KVF700 Prairie 4x4 Base
2006 Kawasaki KVF750 Brute Force 4x4i Base
2006 Kawasaki VN800E Vulcan 800 Drifter Base
2006 Kymco MXU500 Base
2006 Suzuki LT-A400 Eiger 2x4 Auto Base
2006 Suzuki LT-A400F Eiger 4x4 Auto Base
2006 Suzuki LT-F400 Eiger 2x4 Base
2006 Suzuki LT-F400F Eiger 4x4 Base
2006 Suzuki LT-F500F Vinson 500 4x4 Base
2006 Suzuki Lt-Z400 QuadSport Z Base
2006 Yamaha XC50 Vino 50 Classic Base
2006 Yamaha YJ125 Vino 125 Base
2006 Yamaha YP400 Majesty Base
2007 Aprilia Pegaso 650 Base
2007 Aprilia Pegaso 650 Factory Base
2007 Aprilia Pegaso 650 Trail Base
2007 Arctic Cat 400 4X4 Auto Base
2007 Arctic Cat DVX 400 Base
2007 Arctic Cat DVX 400 TS Base
2007 Kawasaki BN125 Eliminator Base
2007 Kawasaki KFX700 Base
2007 Kawasaki KVF750 Brute Force 4x4i Base
2007 Kymco MXU500 Base
2007 Suzuki AN400 Burgman Base
2007 Suzuki GSF1250S Bandit Base
2007 Suzuki GSF1250SA Bandit ABS Base
2007 Suzuki LT-A400 Eiger 2x4 Auto Base
2007 Suzuki LT-A400F Eiger 4x4 Auto Base
2007 Suzuki LT-F400 Eiger 2x4 Base
2007 Suzuki LT-F400F Eiger 4x4 Base
2007 Suzuki LT-F500F Vinson 500 4x4 Base
2007 Suzuki Lt-Z400 QuadSport Z Base
2007 TGB Outback 425 C Base
2007 TGB Outback 425 Camo Edition Base
2007 TGB Outback 425 Special Edition Base
2007 Yamaha XC50 Vino 50 Classic Base
2007 Yamaha XF50 C3 Base
2007 Yamaha YJ125 Vino 125 Base
2007 Yamaha YP400 Majesty Base
2008 Arctic Cat 366 4X4 Auto Base
2008 Arctic Cat 400 4X4 Auto Base
2008 Arctic Cat DVX 400 Base
2008 Kawasaki KFX700 Base
2008 Kawasaki KVF750 Brute Force 4x4i Base
2008 Kymco MXU500 Base
2008 Suzuki AN400 Burgman Base
2008 Suzuki GSF1250S Bandit Base
2008 Suzuki GSF1250SA Bandit ABS Base
2008 Suzuki LT-A400F KingQuad AS Base
2008 Suzuki LT-F400F KingQuad FS Base
2008 Suzuki Lt-Z400 QuadSport Z Base
2008 TGB Outback 425 C Base
2008 TGB Outback 425 Camo Edition Base
2008 TGB Outback 425 Special Edition Base
2008 Yamaha XC50 Vino 50 Classic Base
2008 Yamaha XF50 C3 Base
2008 Yamaha YJ125 Vino 125 Base
2008 Yamaha YP400 Majesty Base
2009 Kawasaki BN125 Eliminator Base
2009 Kawasaki KFX700 Base
2009 Kawasaki KRF750 Teryx 4x4 Base
2009 Kawasaki KRF750 Teryx FI 4x4 Base
2009 Kawasaki KRF750 Teryx FI 4x4 LE Base
2009 Kawasaki KRF750 Teryx FI 4x4 LE Sport Base
2009 Kawasaki KRF750 Teryx FI 4x4 Sport Base
2009 Kawasaki KRF750 Teryx NRA Outdoors Base
2009 Kawasaki KVF750 Brute Force 4x4i Base
2009 Kymco MXU500 Base
2009 Kymco UXV 500 4X4 Base
2009 Suzuki AN400 Burgman Base
2009 Suzuki AN400 Burgman ABS Base
2009 Suzuki GSF1250S Bandit Base
2009 Suzuki GSF1250SA Bandit ABS Base
2009 Suzuki LT-A400F KingQuad AS Base
2009 Suzuki LT-F400F KingQuad FS Base
2009 Suzuki Lt-Z400 QuadSport Z Base
2009 Yamaha XC50 Vino 50 Classic Base
2009 Yamaha XF50 C3 Base
2009 Yamaha XP50 C3 Base
2009 Yamaha XP500 TMAX Base
2009 Yamaha YJ125 Vino 125 Base
2009 Yamaha YP400 Majesty Base
2009 Yamaha YW125 Zuma 125 Base
2010 Arctic Cat 450 EFI H1 4x4 Auto Base
2010 Kawasaki KL250 Super Sherpa Base
2010 Kawasaki KLX250S Base
2010 Kawasaki KRF750 Teryx FI 4x4 Base
2010 Kawasaki KRF750 Teryx FI 4x4 LE Base
2010 Kawasaki KRF750 Teryx FI 4x4 Sport Base
2010 Kawasaki KVF650 Brute Force 4x4 Base
2010 Kawasaki KVF750 Brute Force 4x4i Base
2010 Kymco UXV 500 4X4 Base
2010 Kymco UXV 500 4X4 LE Base
2010 Suzuki LT-A400F KingQuad AS Base
2010 Suzuki LT-F400F KingQuad FS Base
2010 Yamaha XC50 Vino 50 Classic Base
2010 Yamaha XF50 C3 Base
2010 Yamaha XP500 TMAX Base
2010 Yamaha YP400 Majesty Base
2010 Yamaha YW125 Zuma 125 Base
2011 Arctic Cat 425 Base
2011 Arctic Cat 450 Base
2011 Arctic Cat 450 TRV Base
2011 Arctic Cat XC 450i Base
2011 Kawasaki KRF750 Teryx FI 4x4 Base
2011 Kawasaki KRF750 Teryx FI 4x4 LE Base
2011 Kawasaki KRF750 Teryx FI 4x4 LE SGE Base
2011 Kawasaki KRF750 Teryx FI 4x4 Sport Base
2011 Kawasaki KVF650 Brute Force 4x4 Base
2011 Kawasaki KVF650 Brute Force 4x4i Base
2011 Kawasaki KVF750 Brute Force 4x4i Base
2011 Kymco Downtown 300i Base
2011 Kymco MXU500 IRS Base
2011 Kymco UXV 500 4X4 Base
2011 Kymco UXV 500 4X4 LE Base
2011 Kymco UXV 500 4X4 SE Base
2011 Suzuki AN400 Burgman ABS Base
2011 Suzuki GSX1250FA Base
2011 Suzuki LT-A400F KingQuad ASi Base
2011 Suzuki LT-F400F KingQuad FSi Base
2011 Yamaha XC50 Vino 50 Classic Base
2011 Yamaha XF50 C3 Base
2011 Yamaha XP500 TMAX Base
2011 Yamaha YW125 Zuma 125 Base
2012 Arctic Cat 425i Base
2012 Arctic Cat 425i Se Base
2012 Arctic Cat 450i Base
2012 Arctic Cat 450i Gt Base
2012 Arctic Cat TRV 450i Base
2012 Arctic Cat TRV 450i GT Base
2012 Arctic Cat XC 450i Base
2012 Kawasaki KRF750 Teryx FI 4x4 Base
2012 Kawasaki KRF750 Teryx FI 4x4 LE Base
2012 Kawasaki KRF750 Teryx FI 4x4 Sport Base
2012 Kawasaki KVF650 Brute Force 4x4 Base
2012 Kawasaki KVF650 Brute Force 4x4i Base
2012 Kawasaki KVF750 Brute Force 4x4i Base
2012 Kawasaki KVF750 Brute Force 4x4i EPS Base
2012 Kymco Downtown 300i Base
2012 Kymco MXU450i 4x4 IRS Base
2012 Kymco MXU450i 4x4 IRS LE Base
2012 Kymco MXU500 4x4 IRS Base
2012 Kymco MXU500i 4x4 IRS Base
2012 Kymco MXU500i 4x4 IRS LE Base
2012 Kymco People GT 200i Base
2012 Kymco People GT 300i Base
2012 Kymco UXV 500 4X4 Base
2012 Kymco UXV 500i 4X4 Base
2012 Kymco UXV 500i LE Base
2012 Kymco UXV 500i SE Base
2012 Suzuki AN400 Burgman ABS Base
2012 Suzuki LT-A400F KingQuad ASi Base
2012 Suzuki LT-F400F KingQuad FSi Base
2012 Suzuki Lt-Z400 QuadSport Z Base
2012 Suzuki LT-Z400 QuadSport Z LE Base
2012 Yamaha BWs 50 Base
2012 Yamaha YP400 Majesty Base
2012 Yamaha YW125 Zuma 125 Base
2012 Yamaha YW50F Zuma 50F Base
2013 Arctic Cat 450 Core Base
2013 Arctic Cat 500 Core Base
2013 Arctic Cat 500 Xt Base
2013 Arctic Cat TRV 500 Core Base
2013 Arctic Cat XC 450i Base
2013 Kawasaki KRF750 Teryx FI 4x4 Base
2013 Kawasaki KRF750 Teryx FI 4x4 LE Base
2013 Kawasaki KRF750 Teryx FI 4x4 LE Camo Base
2013 Kawasaki KRF750 Teryx FI 4x4 Sport Base
2013 Kawasaki KVF650 Brute Force 4x4 Base
2013 Kawasaki KVF650 Brute Force 4x4i Base
2013 Kawasaki KVF750 Brute Force 4x4i Base
2013 Kawasaki KVF750 Brute Force 4x4i EPS Base
2013 Kymco Compagno 110i Base
2013 Kymco Compagno 50i Base
2013 Kymco Maxxer 450i 4x4 Base
2013 Kymco MXU450i 4x4 IRS Base
2013 Kymco MXU450i 4x4 IRS LE Base
2013 Kymco MXU500 4x4 IRS Base
2013 Kymco MXU500i 4x4 IRS Base
2013 Kymco MXU500i 4x4 IRS LE Base
2013 Kymco MXU700i 4x4 IRS Base
2013 Kymco MXU700i 4x4 IRS LE Base
2013 Suzuki AN400 Burgman ABS Base
2013 Suzuki GW250 Base
2013 Suzuki LT-A400F KingQuad ASi Base
2013 Suzuki LT-F400F KingQuad FSi Base
2013 Suzuki Lt-Z400 QuadSport Z Base
2013 Yamaha XC50 Vino 50 Classic Base
2013 Yamaha YP400 Majesty Base
2013 Yamaha YW125 Zuma 125 Base
2013 Yamaha YW50F Zuma 50F Base
2014 Arctic Cat 450 Base
2014 Arctic Cat 500 Base
2014 Arctic Cat 500 Xt Base
2014 Arctic Cat Prowler HDX 500 Base
2014 Arctic Cat Prowler HDX 500 Limited Base
2014 Arctic Cat Prowler HDX 500 XT Base
2014 Arctic Cat TRV 500 Base
2014 Arctic Cat XC 450i Base
2014 Kawasaki KVF750 Brute Force 4x4i Base
2014 Kawasaki KVF750 Brute Force 4x4i EPS Base
2014 Suzuki AN400 Burgman ABS Base
2014 Suzuki Lt-Z400 QuadSport Z Base
2014 Yamaha XC50 Vino 50 Classic Base
2014 Yamaha YP400 Majesty Base
2014 Yamaha YW125 Zuma 125 Base
2014 Yamaha YW50F Zuma 50F Base
2014 Yamaha YW50FX Zuma 50FX Base
2015 Arctic Cat 450 Base
2015 Arctic Cat 500 Base
2015 Arctic Cat Prowler HDX 500 Base
2015 Arctic Cat TRV 500 Base
2015 Arctic Cat XC 450 Base
2015 Arctic Cat XR 500 Base
2015 Suzuki AN400 Burgman ABS Base
2015 Suzuki GW250 Base
2015 Suzuki GW250F Base
2015 Yamaha XC50 Vino 50 Classic Base
2015 Yamaha XP500 TMAX Base
2015 Yamaha YW125 Zuma 125 Base
2015 Yamaha YW50F Zuma 50F Base
2015 Yamaha YW50FX Zuma 50FX Base
2016 Arctic Cat 500 Base
2016 Arctic Cat Alterra 450 Base
2016 Arctic Cat Alterra 500 XT Base
2016 Arctic Cat HDX 500 XT Base
2016 Arctic Cat XC 450 Base
2016 Suzuki AN400 Burgman ABS Base
2016 Suzuki GSF1250SA Bandit ABS Base
2016 Yamaha XC50 Vino Classic Base
2016 Yamaha XP500 TMAX Base
2016 Yamaha YW125 Zuma 125 Base
2016 Yamaha YW50F Zuma 50F Base
2016 Yamaha YW50FX Zuma 50FX Base
2017 Arctic Cat 500 Base
2017 Arctic Cat Alterra 500 Base
2017 Arctic Cat Alterra TRV 500 Base
2017 Arctic Cat HDX 500 XT Base
2017 Arctic Cat XC 450 Base
2017 Suzuki GW250 Base
2017 Yamaha XC50 Vino Classic Base
2017 Yamaha YW125 Zuma 125 Base
2017 Yamaha YW50F Zuma 50F Base
2017 Yamaha YW50FX Zuma 50FX Base
2018 Argo Xplorer XR 500 Base
2018 Argo Xplorer XR 500 EPS Base
2018 Argo Xplorer XR 500 LE Base
2018 Argo Xplorer XRT 500 Base
2018 Argo Xplorer XRT 500 EPS Base
2018 Argo Xplorer XRT 500 LE Base
2018 Textron Alterra 500 Base
2018 Yamaha XC50 Vino Classic Base
2018 Yamaha YW125 Zuma 125 Base
2018 Yamaha YW50F Zuma 50F Base
2018 Yamaha YW50FX Zuma 50FX Base
2019 Argo Xplorer XR 500 Base
2019 Argo Xplorer XR 500 EPS Base
2019 Argo Xplorer XR 500 LE Base
2019 Argo Xplorer XRT 500 Base
2019 Argo Xplorer XRT 500 EPS Base
2019 Argo Xplorer XRT 500 LE Base
2019 Kawasaki KAF700 Mule PRO-MX EPS Base
2019 Yamaha YW125 Zuma 125 Base
2019 Yamaha YW50F Zuma 50F Base
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
