Best Spark Plugs For Harley Twin Cam | Reviews & Recommendations

Truly finding the spark plugs for harley twin cam is only effective if you can get your hands on some options, which is exactly what we did.

After researching many products, we shaved the list down to the top 10 options today by researching design, capability, durability, features, price, and overall build quality.

We researched hours on these products and compared them to one another to see which one is the best for every need. Read this spark plugs for harley twin cam article with an extensive buying guide if you're interested in buying or learning about these spark plugs for harley twin cam.

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1 NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

9.5
2 Chrome Spark Plug Head Bolt Covers For Harley Dyna Softail Twin Cam 99-17 Model

Chrome Spark Plug Head Bolt Covers For Harley Dyna Softail Twin Cam 99-17 Model

9.8
3 2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144 #6046 #97637 for 1999-2016 Harley Davidson Twin Cam…

2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144 #6046 #97637 for 1999-2016 Harley...

9.7
4 Accel 2418 Spark Plugs (Pair) 6R12 for Harley Davidson Twin Cam

Accel 2418 Spark Plugs (Pair) 6R12 for Harley Davidson Twin Cam

9.3
5 Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12

Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12

9.7
6 XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340 Evo,Chrome

XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340...

9.5
7 Iridium Spark Plugs IX DCPR7EIX for 1999-2016 Harley Davidson Twin Cam 2pcs

Iridium Spark Plugs IX DCPR7EIX for 1999-2016 Harley Davidson Twin Cam 2pcs

9.3
8 YHMTIVTU Motorcycle Spark Plug Head Bolt Covers Fit for Harley Dyna Softail Touring Twin Cam 1999-2017

YHMTIVTU Motorcycle Spark Plug Head Bolt Covers Fit for Harley Dyna Softail Touring Twin Cam...

9.8
9 NHPJ 4PCS CNC Aluminum Spark Plug Cover Head Bolt Engine Screw Cap for Harley Twin Cam Touring Sportster XL 883 1200 1986-2020 Softail Fatboy-Black

NHPJ 4PCS CNC Aluminum Spark Plug Cover Head Bolt Engine Screw Cap for Harley Twin Cam Touring...

9.8
10 HDBUBALUS Motorcycle Head Bolt Cover Spark Plug Cap Fit for Harley Twin Cam Dyna Big Twin Evolution 1340 Sportster XL 1999-2017 4PCS

HDBUBALUS Motorcycle Head Bolt Cover Spark Plug Cap Fit for Harley Twin Cam Dyna Big Twin Evolution...

9.8

List of best spark plugs for harley twin cam  Reviews

SaleBestseller No. 1

NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

  • Come pre-gapped
  • The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • The ultimate in spark plug technology and performance from the industry leader
  • New metal shell plating has enhanced anti corrosion qualities
Bestseller No. 2

Chrome Spark Plug Head Bolt Covers For Harley Dyna Softail Twin Cam 99-17 Model

  • Condition:100% Brand New
  • Surface Finish: Chrome
  • Fitment:1999-2017 Harley Twin Cam Models
  • Package Include: 1Pair Spark Plug Covers
Bestseller No. 3

2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144 #6046 #97637 for 1999-2016 Harley Davidson Twin Cam…

  • 【SUPER POWER】Double Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response. Double iridium is the best spark plug material
  • 【MORE FUEL EFFICIENT】The flameout phenomenon rarely occurs when using double iridium spark plugs,The engine can also be kept in good running condition, resulting in lower fuel consumption. So it is really necessary to replace the good double iridium spark plugs.
  • 【LONGER LIFE】The fine Double Iridium tip ensures high durability and a consistently stable spark. Double Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines. Trivalent Metal Plating - Outstanding acceleration, long life ,high fuel efficiency and durability. Ultimate design, technology and performance.
  • 【COMPATIBLE MODELS】DCPR7EIX #3144 Replacement racing spark plug used by many professional car drivers and fit for 2000 Dyna Super Glide;1999-2016 Harley Davidson Twin Cam;XL Sportster 883/1200 1986-present; Ultra;Suzuki Boulevard ;If it has the same parameters as this product, it can be compatible
  • 【QUICK AFTER SALES SERVICE】One order = 2 Pieces ,We provide 12 months warranty service for this spark plugs, and we attach great importance to every customer's satisfaction. If for any reason we are not meeting your expectations, please feel free to contact us and we will do our best to resolve all your concerns.
Bestseller No. 4

Accel 2418 Spark Plugs (Pair) 6R12 for Harley Davidson Twin Cam

  • Accel High Performance spark plugs for Harley-Davidson
  • Suitable for all Harley Davidson Twin Cam 1450/1550cc models from 1999 up
  • Spark plugs produce a larger spark for more power at high RPMs. Improves throttle response and fuel economy with less fouling
  • Accel number 2418, replaces OEM part 6R12
  • Sold in pairs
Bestseller No. 5

Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12

  • The ultimate in spark plug technology and performance
  • Iridium electrode is smaller than a standard electrode; requires less voltage
  • Hotter spark and extended spark plug service life compared to conventional plugs
  • Has the distinctive black ceramic with and gold-colored corrosion-protected coating on the metal shell
  • Sold in pairs and replaces Harley# 6R12 / NGK# DCPR7EIX
Bestseller No. 6

XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340 Evo,Chrome

  • Fitment: Fir for Harley all Twin Cam models 1999-Later, Fit for Big Twin 1340 Evo Models 1985-1999, Fit for all Sportster models 1986-Later.
  • Package included: 4x Head Bolt/Nut Covers ; Note: Please check the Size before you purchase
  • Outside Diameter: 28mm (1 1/8"), Inside Diameter: 15mm (9/16")
  • They are for the head bolts on either side of the spark plugs.
  • Warranty:XMMT store offer 24 hours customer service and 30 days warranty. If you meet any problem about installation and items, please feel free to contact us.
SaleBestseller No. 7

Iridium Spark Plugs IX DCPR7EIX for 1999-2016 Harley Davidson Twin Cam 2pcs

  • Iridium IX offers extreme ignitability, improved throttle response.
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • lower fuel consumption
  • If it has the same parameters as this product, it can be compatible
  • New metal shell plating has enhanced anti corrosion qualities
Bestseller No. 8

YHMTIVTU Motorcycle Spark Plug Head Bolt Covers Fit for Harley Dyna Softail Touring Twin Cam 1999-2017

  • Material:Aluminum
  • Add a Classy Touch to your Engine,Hold in Position with Set Screws,Ensuring Rattle-free Performance
  • Color:Chrome
  • Fitment:Fit for Harley Twin Cam Models 1999-2017
  • Package Include: 1 Pair of Spark Plug Cover with Bolts
Bestseller No. 9

NHPJ 4PCS CNC Aluminum Spark Plug Cover Head Bolt Engine Screw Cap for Harley Twin Cam Touring Sportster XL 883 1200 1986-2020 Softail Fatboy-Black

  • Fitment:Fit for XL883 Softail Dyna Sportster ,Most Twin Cam models 1999-2020 ,Big Twin 1340 Evo Models 1985-1999 ,Sportster models 1986-2020
  • Using for motorcycle engine piston,Makes you motorcycle look showy and outstanding ,100% Brand New Motorcycle Engine Screws Cap,Replacing your old or broken motorcycle piston screw cover
  • No Installation Instruction And Installation Remove Easily.Please make sure your motorcycle meets our compatibility.
  • Material : Made of high quality aluminum,waterproof and corrosion resistant
  • Package Included: 1 set Engine Cover Screws(4pcs)
Bestseller No. 10

HDBUBALUS Motorcycle Head Bolt Cover Spark Plug Cap Fit for Harley Twin Cam Dyna Big Twin Evolution 1340 Sportster XL 1999-2017 4PCS

  • Material:Aluminum,Used for the head bolts on spark plugs
  • Color: Anodized Black
  • Fitment:Fits for Harley all Twin Cam models 1999-Later, Big Twin 1340 Evo Models 1985-1999, All Sportster 1986-Later
  • Outside Diameter: 28mm (1 1/8"), Inside Diameter: 15mm (9/16")
  • Package includes 4*Head Bolt Nut Covers
Review

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