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    NGK IX Iridium Spark Plug Box of 4 (BPR9EIX)

    Vendor: NGK
    SKU: NGK6853
    Regular Price $37.60
    Fast Fulfillment: In-stock parts typically ship same day or next business day.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
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    NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

    • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
    • Trivalent metal plating for superior anti-corrosion and anti-seizing properties
    • Outstanding acceleration, high fuel efficiency and durability
    • Fine iridium tip ensures durable and consistent spark

    This Part Fits:

    Year Make Model Submodel
    2018 Arctic Cat M 6000 141 Base
    2015,2018 Arctic Cat M 6000 153 Base
    2015 Arctic Cat M 6000 ES 153 Base
    2016 Arctic Cat M 6000 Limited 153 Base
    2016 Arctic Cat M 6000 SE 141 Base
    2016 Arctic Cat M 6000 SE 153 Base
    2017,2019 Arctic Cat M 6000 SE ES 141 Base
    2017,2019 Arctic Cat M 6000 SE ES 153 Base
    2016 Arctic Cat M 6000 Sno Pro 141 Base
    2014-2017 Arctic Cat M 6000 Sno Pro 153 Base
    2017 Arctic Cat M 6000 Sno Pro ES 153 Base
    2018 Arctic Cat M 8000 153 Base
    2019 Arctic Cat M 8000 Hardcore 153 Base
    2019 Arctic Cat M 8000 Hardcore 162 Base
    2018-2019 Arctic Cat M 8000 Mountain Cat 153 Base
    2018-2019 Arctic Cat M 8000 Mountain Cat 162 Base
    2019 Arctic Cat M 8000 Mountain Cat Alpha One 154 Base
    2019 Arctic Cat M 8000 Mountain Cat Alpha One 165 Base
    2018-2019 Arctic Cat M 8000 Sno Pro 153 Base
    2018 Arctic Cat M 8000 Sno Pro 153 Early Build Base
    2018-2019 Arctic Cat M 8000 Sno Pro 162 Base
    2018 Arctic Cat M 8000 Sno Pro 162 Early Build Base
    2018-2019 Arctic Cat Norseman 6000 ES Base
    2019 Arctic Cat Norseman X 6000 Base
    2019 Arctic Cat Norseman X 8000 Base
    2018-2019 Arctic Cat Pantera 6000 ES Base
    2015 Arctic Cat XF 6000 Cross Country Base
    2017-2019 Arctic Cat XF 6000 Cross Country Limited ES Base
    2015 Arctic Cat XF 6000 Crosstour Base
    2018 Arctic Cat XF 6000 Crosstour ES Base
    2016 Arctic Cat XF 6000 Crosstrek Base
    2017-2018 Arctic Cat XF 6000 Crosstrek ES Base
    2015-2017 Arctic Cat XF 6000 High Country Base
    2018-2019 Arctic Cat XF 6000 High Country ES Base
    2017 Arctic Cat XF 6000 High Country Limited ES Base
    2015 Arctic Cat XF 6000 Limited Base
    2015 Arctic Cat XF 6000 LXR Base
    2015 Arctic Cat XF 6000 Sno Pro Base
    2018-2019 Arctic Cat XF 8000 Cross Country Limited ES Base
    2018 Arctic Cat XF 8000 Crosstrek ES Base
    2018-2019 Arctic Cat XF 8000 High Country Base
    2018-2019 Arctic Cat XF 8000 High Country Limited ES 141 Base
    2018-2019 Arctic Cat XF 8000 High Country Limited ES 153 Base
    2014-2016 Arctic Cat ZR 6000 El Tigre Base
    2014 Arctic Cat ZR 6000 El Tigre ES Base
    2017-2018 Arctic Cat ZR 6000 El Tigre ES 129 Base
    2017-2018 Arctic Cat ZR 6000 El Tigre ES 137 Base
    2018-2019 Arctic Cat ZR 6000 ES 129 Base
    2018-2019 Arctic Cat ZR 6000 ES 137 Base
    2015 Arctic Cat ZR 6000 Limited Base
    2016 Arctic Cat ZR 6000 Limited 129 Base
    2016 Arctic Cat ZR 6000 Limited 137 Base
    2017-2019 Arctic Cat ZR 6000 Limited ES 129 Base
    2019 Arctic Cat ZR 6000 Limited ES 129 iACT Base
    2017-2019 Arctic Cat ZR 6000 Limited ES 137 Base
    2019 Arctic Cat ZR 6000 Limited ES 137 iACT Base
    2015 Arctic Cat ZR 6000 LXR Base
    2016 Arctic Cat ZR 6000 LXR 129 Base
    2016 Arctic Cat ZR 6000 LXR 137 Base
    2017 Arctic Cat ZR 6000 LXR ES 129 Base
    2017 Arctic Cat ZR 6000 LXR ES 137 Base
    2018 Arctic Cat ZR 6000 R XC 129 Base
    2014-2016 Arctic Cat ZR 6000 RR Base
    2017 Arctic Cat ZR 6000 RR ES 129 Base
    2017-2019 Arctic Cat ZR 6000 RR ES 137 Base
    2017 Arctic Cat ZR 6000 RS Base
    2015 Arctic Cat ZR 6000 Sno Pro Base
    2016 Arctic Cat ZR 6000 Sno Pro 129 Base
    2016 Arctic Cat ZR 6000 Sno Pro 137 Base
    2017-2019 Arctic Cat ZR 6000 Sno Pro ES 129 Base
    2017-2019 Arctic Cat ZR 6000 Sno Pro ES 137 Base
    2015 Arctic Cat ZR 6000 Tucker Hibbert RR Base
    2018 Arctic Cat ZR 8000 El Tigre ES 129 Base
    2018 Arctic Cat ZR 8000 El Tigre ES 137 Base
    2018-2019 Arctic Cat ZR 8000 ES 129 Base
    2018-2019 Arctic Cat ZR 8000 ES 137 Base
    2018-2019 Arctic Cat ZR 8000 Limited ES 129 Base
    2019 Arctic Cat ZR 8000 Limited ES 129 iACT Base
    2018-2019 Arctic Cat ZR 8000 Limited ES 137 Base
    2019 Arctic Cat ZR 8000 Limited ES 137 iACT Base
    2018-2019 Arctic Cat ZR 8000 RR ES 129 Base
    2018-2019 Arctic Cat ZR 8000 RR ES 137 Base
    2018-2019 Arctic Cat ZR 8000 Sno Pro ES 129 Base
    2018 Arctic Cat ZR 8000 Sno Pro ES 129 Early Build Base
    2018-2019 Arctic Cat ZR 8000 Sno Pro ES 137 Base
    2018 Arctic Cat ZR 8000 Sno Pro ES 137 Early Build Base
    2005-2007 Polaris 440 IQ Base
    2001-2003 Polaris 440 Pro X Base
    2002-2003 Polaris 440 Pro X Fan Base
    2004 Polaris 440 Pro XR Base
    2000 Polaris 440 XC SP Base
    2003 Polaris 500 Classic Base
    2003 Polaris 500 Classic Touring Base
    2002 Polaris 500 RMK Base
    2001-2003 Polaris 500 XC Base
    2000-2007 Polaris 500 XC SP Base
    2001-2006 Polaris 600 Classic Base
    2001-2004 Polaris 600 Classic Touring Base
    2008 Polaris 600 Dragon IQ Base
    2009 Polaris 600 Dragon SP Base
    2008-2010 Polaris 600 Dragon SwitchBack Base
    2007 Polaris 600 HO CFI SwitchBack Base
    2006 Polaris 600 HO Fusion Base
    2007 Polaris 600 HO IQ Base
    2007 Polaris 600 HO IQ CFI Base
    2007 Polaris 600 HO IQ LX CFI Base
    2008 Polaris 600 HO IQ Touring Base
    2013-2019 Polaris 600 INDY Base
    2013-2018 Polaris 600 INDY SP Base
    2019 Polaris 600 INDY SP 129 Base
    2014 Polaris 600 INDY SP LE Base
    2016 Polaris 600 INDY SP TD Series LE Base
    2014 Polaris 600 INDY Voyager Base
    2015-2016 Polaris 600 INDY Voyageur Base
    2019 Polaris 600 INDY XC 129 Base
    2011-2015 Polaris 600 IQ LXT Base
    2012 Polaris 600 IQ Racer Base
    2009-2012 Polaris 600 IQ Shift Base
    2009 Polaris 600 IQ Shift 136 Base
    2009-2010 Polaris 600 IQ Touring Base
    2010-2017 Polaris 600 IQ WideTrak Base
    2001-2004 Polaris 600 PRO X Base
    2004 Polaris 600 PRO X2 Base
    2012-2019 Polaris 600 PRO-RMK 155 Base
    2000-2006 Polaris 600 RMK Base
    2007-2019 Polaris 600 RMK 144 Base
    2007-2016 Polaris 600 RMK 155 Base
    2008 Polaris 600 RR Base
    2010-2013 Polaris 600 Rush Base
    2011 Polaris 600 Rush LX Base
    2011-2014 Polaris 600 Rush PRO-R Base
    2015-2019 Polaris 600 Rush PRO-S Base
    2017-2019 Polaris 600 Rush XCR Base
    2011 Polaris 600 Shift 136 Base
    2004-2014 Polaris 600 SwitchBack Base
    2012-2019 Polaris 600 SwitchBack Adventure Base
    2014-2019 Polaris 600 SwitchBack Assault 144 Base
    2012-2014 Polaris 600 SwitchBack PRO-R Base
    2015-2019 Polaris 600 SwitchBack PRO-S Base
    2017-2019 Polaris 600 SwitchBack SP 144 Base
    2018-2019 Polaris 600 SwitchBack XCR Base
    2000,2004-2006 Polaris 600 Touring Base
    2017-2019 Polaris 600 Voyageur 144 Base
    2003 Polaris 600 XC Base
    2000 Polaris 600 XC Deluxe Base
    2000-2005 Polaris 600 XC SP Base
    2001-2004,2006 Polaris 700 Classic Base
    2003-2004 Polaris 700 Classic Touring Base
    2007 Polaris 700 Dragon Base
    2008 Polaris 700 Dragon IQ Base
    2007 Polaris 700 Dragon RMK 155 Base
    2008 Polaris 700 Dragon SwitchBack Base
    2004 Polaris 700 Edge Touring Base
    2006 Polaris 700 Fusion Base
    2006 Polaris 700 HO Touring Base
    2003-2004 Polaris 700 PRO X Base
    2004 Polaris 700 PRO X2 Base
    2000-2005 Polaris 700 RMK Base
    2006 Polaris 700 RMK 144 Base
    2006 Polaris 700 RMK 151 Base
    2008-2010 Polaris 700 RMK 155 Base
    2006 Polaris 700 RMK 159 Base
    2000-2003 Polaris 700 SKS Base
    2004,2008 Polaris 700 SwitchBack Base
    2003 Polaris 700 XC Base
    2000 Polaris 700 XC Deluxe Base
    2000-2005 Polaris 700 XC SP Base
    2009-2010 Polaris 800 Assault RMK 146 Base
    2004 Polaris 800 Classic Base
    2004 Polaris 800 Classic Touring Base
    2009-2010 Polaris 800 Dragon Base
    2010 Polaris 800 Dragon IQ Base
    2008-2010 Polaris 800 Dragon RMK 155 Base
    2008-2010 Polaris 800 Dragon RMK 163 Base
    2009 Polaris 800 Dragon SP Base
    2009-2010 Polaris 800 Dragon Swtichback Base
    2014-2016 Polaris 800 INDY SP Base
    2014 Polaris 800 INDY SP LE Base
    2008-2010 Polaris 800 IQ Base
    2001 Polaris 800 LE Base
    2003-2004 Polaris 800 PRO X Base
    2004 Polaris 800 PRO X2 Base
    2004 Polaris 800 PRO XR Base
    2011-2019 Polaris 800 PRO-RMK 155 Base
    2016-2019 Polaris 800 PRO-RMK 155 3in. Base
    2017 Polaris 800 PRO-RMK 155 LE Base
    2015 Polaris 800 PRO-RMK 155 Terrain Dominator Base
    2011-2019 Polaris 800 PRO-RMK 163 Base
    2016-2019 Polaris 800 PRO-RMK 163 3in. Base
    2017 Polaris 800 PRO-RMK 163 LE Base
    2015 Polaris 800 PRO-RMK 163 Terrain Dominator Base
    2018-2019 Polaris 800 PRO-RMK 174 Base
    2017 Polaris 800 PRO-RMK 174 LE Base
    2014 Polaris 800 PRO-RMK LE Base
    2000-2005 Polaris 800 RMK Base
    2009-2010 Polaris 800 RMK 144 Base
    2009-2016 Polaris 800 RMK 155 Base
    2011-2019 Polaris 800 RMK Assault 155 Base
    2016-2017 Polaris 800 RMK Assault 155 3in. Base
    2014 Polaris 800 RMK Assault 155 LE Base
    Shipping Policy

    Shipping Policy Last Updated: April 2026

    We're committed to getting your order to you as quickly and transparently as possible. Here's everything you need to know about how we ship.

    Order Cancellations

    Once an order is placed, cancellations are not guaranteed as orders are sent to fulfillment quickly. If you need to cancel, contact us immediately at sales@berryperformancesales.com. If a cancellation is possible, the buyer is responsible for any transaction fees incurred. If the order has already shipped, it cannot be cancelled and must go through our standard return process.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise noted on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated at checkout based on the shipping method selected, package weight and dimensions, and destination address. You can review all shipping costs before finalizing your purchase.

    Estimated Delivery Times

    Domestic orders typically arrive within 1–7 business days after shipment, depending on your location and the carrier. Please note that delivery times are estimates and are not guaranteed. Delays due to weather, carrier volume, or other circumstances beyond our control may occur.

    Tracking Information

    Once your order ships, you will receive a confirmation email with tracking information. Use this to monitor your package's progress. If your tracking has not updated within 48 hours of receiving your confirmation email, please contact us and we'll look into it.

    Shipping Address

    Please ensure your shipping address is accurate and complete before placing your order. If you realize an error after ordering, contact us immediately at sales@berryperformancesales.com — we will do our best to make the correction, but changes cannot be guaranteed once an order is in fulfillment. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Please note: We are unable to ship to P.O. Boxes. Please provide a physical delivery address at checkout.

    Lost or Stolen Packages

    If your tracking shows your order as delivered but you have not received it, please take the following steps:

    • Check around your property and with neighbors
    • Confirm the shipping address on your order was correct
    • Contact the carrier directly with your tracking number

    If the issue remains unresolved, contact us at sales@berryperformancesales.com within 5 business days of the marked delivery date. We will work with you and the carrier to investigate. Berry Performance Sales is not responsible for packages confirmed as delivered by the carrier or for packages stolen after delivery.

    Damaged in Transit

    If your order arrives visibly damaged, please refer to our Returns & Refunds policy for instructions on how to report the issue. Carrier damage claims must be reported within 48 hours of delivery.

    International Shipping

    We do ship internationally! Because shipping costs, carrier options, and transit times vary significantly by destination, international orders require a custom quote prior to purchase. To request a shipping quote, contact us at sales@berryperformancesales.com with the following:

    • Your country and full delivery address
    • The item(s) you are interested in ordering

    We will respond with a shipping quote as quickly as possible. Please note that customs duties, import taxes, and any other fees charged upon delivery are the sole responsibility of the recipient and are not included in your shipping quote. We recommend checking with your local customs office before placing your order.

    Off-Road Use Disclaimer

    All products are sold for off-road use only unless otherwise specified. The buyer assumes full responsibility for installation and operation. Berry Performance Sales is not liable for any incidental, indirect, or consequential damages including engine failure, labor charges, or vehicle downtime resulting from the use of any product sold. By placing an order, you acknowledge and accept these terms.

    Questions?

    We're happy to help before, during, or after your purchase. Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Return Policy

    Returns & Refunds Last Updated: April 2026

    We want you to love what you ordered. If something isn't right, here's everything you need to know.

    30-Day Return Window

    You have 30 days from the date of purchase to initiate a return. After this window, we are unable to accept returns. We do not offer exchanges — all approved returns are refunded per the terms below.

    How to Initiate a Return

    To request a return, contact us at sales@berryperformancesales.com with your order number and reason for return. All returns must be approved by our team before any item is shipped back to us. Once your return has been approved, your item must be shipped within 10 days of approval. Items shipped without prior approval or outside this window will be refused and returned to sender.

    Return Conditions

    To be eligible for a return, items must be:

    • Unused and in original condition
    • In original packaging
    • Inclusive of all parts and accessories

    Custom ordered products are non-returnable. If you're unsure whether your item qualifies, contact us before purchasing.

    Once we receive your return, we will inspect the item before processing any refund. We reserve the right to deny or adjust your refund if the item is received in a condition that differs from what was originally shipped — including signs of use, missing parts, or damage that occurred after delivery.

    Fees to Know Upfront

    We believe in being transparent about costs:

    • Restocking Fee: 20% — deducted from all return refunds
    • Return Shipping: Buyer's responsibility on all standard returns
    • Cancellation (Installment/Payment Plan): 7% fee to cover transaction costs
    • Cancellation (Credit Card/PayPal): 3.5% processing fee

    Damaged or Defective Items

    If your order arrives damaged or defective, you must contact us within 48 hours of delivery at sales@berryperformancesales.com. Claims reported outside this window may not be eligible for resolution.

    When contacting us, please include:

    • Your order number
    • A description of the issue
    • Clear photos or video of the damage or defect

    If your item was damaged during shipping, this is handled as a carrier claim separate from our standard return process — we will assist you in filing that claim. Items confirmed to be defective due to a manufacturing or fulfillment error will have return shipping costs covered by Berry Performance Sales.

    Refunds

    Once we receive and inspect your return, refunds are processed within 3–5 business days back to your original payment method. You'll receive a confirmation once it's been issued.

    Questions?

    We're happy to help before, during, or after your purchase. Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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