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Deal.ai › NGK
NGK
NGK Iridium IX Spark Plug BR9HIX 5687

NGK Iridium IX Spark Plug BR9HIX 5687

Best price now

$7.00at Fortune Hunterz MotorsportsChecked 1 h ago

52% under what the other stores charge

Compared across 23 stores. Prices are checked against each store and labelled with when.

Visit Fortune Hunterz Motorsports

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Price facts

  • Lowest price today: $7.00 at Fortune Hunterz Motorsports (checked Nov 12, 2026).
  • Checked at 23 stores.

Our take on the NGK Iridium IX Spark Plug BR9HIX 5687

The NGK Iridium IX BR9HIX is a resistor spark plug with a 0.6 mm iridium center electrode, a grooved single ground electrode and a 19.1 mm thread reach. The fine electrode needs less voltage to fire than platinum or nickel plugs, which eases the load on coils and ignition systems. Heat range 9 is a cold plug, so it suits high-revving and modified engines rather than stock street motors. It is a direct-fit replacement for the stock plug in many motorcycles, snowmobiles and off-road machines that call for a BR9HIX.

Best forMotorcycles and off-road bikes that spec a BR9HIX plugSnowmobiles and other high-revving small enginesTuned engines running hot under loadOwners replacing plugs at service intervals
Pros
  • Iridium center electrode is 25% smaller than platinum and a quarter the size of nickel
  • Smaller electrode lowers the voltage needed to spark
  • Grooved ground electrode helps flame spread
  • Resistor design (5k ohms) suppresses ignition noise
  • Metal shell plating resists corrosion
  • Removable nut terminal fits both stud and cap setups
Cons
  • Heat range 9 is cold and can foul in low-load, stop-and-go use
  • Non-projected tip is not a universal fit
  • Sold as a single plug, so multi-cylinder engines need several
  • Iridium plugs cost more than standard nickel plugs

NGK Iridium IX Spark Plug BR9HIX 5687 prices at every store

  • Speedzone Performance LLCNew

    In stockReturn policy

    $7.00Checked 1 h ago
    Visit Speedzone Performance LLC
  • TURBO TECH PERFORMANCENew

    In stockReturn policy

    $7.00Checked 1 h ago
    Visit TURBO TECH PERFORMANCE
  • Papi’s Parts LLCNew

    In stock

    $7.00Checked 1 h ago
    Visit Papi’s Parts LLC
  • Fortune Hunterz MotorsportsNew

    In stockReturn policy

    $7.00Checked 1 h ago
    Visit Fortune Hunterz Motorsports
  • Sixity AutoNew

    In stock

    $8.15Checked 1 h ago
    Visit Sixity Auto
  • Munro IndustriesNew

    In stockShips from Canada · priced in CAD (CA$14.00) · duties may applyReturn policy

    $9.83Checked 1 h ago
    Visit Munro Industries
  • 2WheelHQNew

    In stock

    $14.95Checked 1 h ago
    Visit 2WheelHQ
  • Munro PowersportsNew

    In stockReturn policy

    $16.00Checked 1 h ago
    Visit Munro Powersports
  • GBPNew

    In stockShips from Canada · duties may applyReturn policy

    $16.00Checked 1 h ago
    Visit GBP
  • WalmartNew

    In stock

    $12.48+ $6.99 shippingChecked 1 h ago
    Visit Walmart
  • AutoZoneNew

    In stock

    $12.99+ $6.99 shippingChecked 1 h ago
    Visit AutoZone
  • Partzilla.comNew

    In stock

    $10.39+ $9.95 shippingChecked 1 h ago
    Visit Partzilla.com
  • Powersport SuperstoreNew

    In stockReturn policy

    $22.37Checked 1 h ago
    Visit Powersport Superstore
  • RepairClinic.comNew

    Availability unknown

    $11.30Checked 1 h ago
    Visit RepairClinic.com
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $12.48Free shippingChecked 1 h ago
    Visit Amazon
  • Sportbike Track GearNew

    Availability unknown

    $14.49Checked 1 h ago
    Visit Sportbike Track Gear
  • SistersMotoNew

    Availability unknown

    $14.95Checked 1 h ago
    Visit SistersMoto
  • LaBaron's Power SportsNew

    Availability unknown

    $14.95Checked 1 h ago
    Visit LaBaron's Power Sports
  • World of PowersportsNew

    Availability unknown

    $14.95Checked 1 h ago
    Visit World of Powersports
  • PartsGiantNew

    Availability unknown

    $15.50Checked 1 h ago
    Visit PartsGiant
  • SIP ScootershopNew

    Availability unknownShips from abroad · duties may apply

    $25.25Checked 1 h ago
    Visit SIP Scootershop
  • eBayNew

    Availability unknownSold by motorcyclelivin

    $32.95Checked 1 h ago
    Visit eBay
  • NAPA Auto PartsNew

    Availability unknown

    $16.99+ $15.99 shippingChecked 1 h ago
    Visit NAPA Auto Parts

Also available at

  • SistersMotoCheck price at SistersMoto
  • Cycle City OutdoorsCheck price at Cycle City Outdoors

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NGK Iridium IX Spark Plug BR9HIX 5687 price history

Lowest price we've seen: $8.15 on Nov 12 at Sixity Auto. Tracked across 14 stores since Nov 12.

About the NGK Iridium IX Spark Plug BR9HIX 5687

The NGK Iridium IX BR9HIX is a resistor spark plug with an iridium center electrode. The iridium electrode is 25% smaller than a platinum electrode and about 1/4 the size of a conventional nickel electrode.

The ultra-small center electrode reduces the voltage requirement and extends ignition system life. The metal shell has new plating with improved corrosion resistance. It is intended for street, snow and off-road riding.

Brand
NGK
Model
BR9HIX
Part number
5687
Style
Iridium IX
Type
Resistor spark plug
Riding style
Street, Snow, Off-Road
Heat range
9
Hex size
20.6 mm
Thread reach
19.1 mm
Spark gap
0.031"
Electrode tip
Iridium
Center electrode
Necked down, non-projected
Ground electrode
Single, grooved
Resistance
5k ohms
Terminal
Removable nut
Units
Each

Questions and answers

Is the BR9HIX a direct replacement for my stock plug?
Only if your engine calls for a BR9HIX or an equivalent heat range 9 plug with 19.1 mm reach and a 20.6 mm hex. Check the plug number in your owner's manual or service data before swapping.
What does heat range 9 mean?
It is a cold plug that sheds heat quickly. It suits high-revving or modified engines that run hot; in a stock engine used at low load it can foul.
Does it come pre-gapped?
The listed gap is 0.031 in. Always check the gap with a gauge before fitting and adjust to your engine's spec if needed.
Will the removable terminal nut fit my plug cap?
The terminal is a removable nut, so it works with both bare stud caps and nut-style caps. Leave the nut on or take it off to match your cap.
How often should I replace it?
Iridium plugs typically last longer than nickel plugs, but follow your manufacturer's service interval. Pull and inspect the plug if the engine starts misfiring or idling roughly.
Can I mix it with other plug types in the same engine?
No. Use the same model and heat range across all cylinders so they fire and wear evenly.
Where is the NGK Iridium IX Spark Plug BR9HIX 5687 cheapest?
At Fortune Hunterz Motorsports, for $7.00, 52% under what the other stores charge, as of our latest check.
Where can I buy the NGK Iridium IX Spark Plug BR9HIX 5687?
24 stores we checked sell it, including SistersMoto, Munro Industries, Munro Powersports, GBP, Speedzone Performance LLC.

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