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2014 - 2024 Ram 4500 Fe Spark Plug (NGK) NEW

$ 13 .82
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

⚠️ Most jobs typically require 16 of this item.
Gap 0.044"
Iridium IX Spark Plug
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.
Brand: NGK
Condition: New
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Specifications & Info


Attribute Value
Center Electrode Core Material Copper
Center Electrode Design Fine Wire
Center Electrode Insulator Tip Projection 0.14, 3.5
Center Electrode Projection Mid Projection
Center Electrode Tip Material Iridium
Electrical Terminal Type Non-removable Nut
Grade Type Performance
Ground Configuration J-gap
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Taper Cut
Ground Electrode Tip Material Nickel
Hex Size 5/8" (16mm)
Insulator Height 1.99, 50.5
Insulator Material Ceramic
Manufacturer Heat Range 5
Material Grade Iridium
Part Number Lfr5aix-11
Pre Gap Size .044, 1.1
Reach 1.043, 26.5
Resistance 5000.0
Resistor Type Yes
Seat Type Flat
Service Number Lfr5aix-11
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 4469
Thread Diameter 0.551, 14.0
Washer Included Yes
Washer Type Crush

Vehicle Fitment Guide

This part fits the following vehicles:

Ram 1 model (tapclick to expand)(tapclick to hide)
4500 2014-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Laramie Cab & Chassis - Crew Cab 2014 - 2024 L6 6.7L DIESEL Turbo 4 X 4/4 X 2 Automatic
Laramie Cab & Chassis - Crew Cab 2014 - 2017 L6 6.7L DIESEL Turbo 4 X 4/4 X 2 Manual
Laramie Cab & Chassis - Crew Cab 2014 - 2024 V8 6.4L 4 X 4/4 X 2 Automatic
Laramie Cab & Chassis - Crew Cab 2014 - 2017 V8 6.4L 4 X 4/4 X 2 Manual
Limited Cab & Chassis - Crew Cab 2019 - 2024 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Automatic
Limited Cab & Chassis - Crew Cab 2019 - 2024 V8 6.4L 4 X 2/4 X 4 Automatic
SLT Cab & Chassis - Conventional 2014 - 2024 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Automatic
SLT Cab & Chassis - Conventional 2014 - 2017 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Manual
SLT Cab & Chassis - Conventional 2014 - 2024 V8 6.4L 4 X 4/4 X 2 Automatic
SLT Cab & Chassis - Conventional 2014 - 2017 V8 6.4L 4 X 4/4 X 2 Manual
SLT Cab & Chassis - Crew Cab 2014 - 2024 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Automatic
SLT Cab & Chassis - Crew Cab 2014 - 2017 L6 6.7L DIESEL Turbo 4 X 4/4 X 2 Manual
SLT Cab & Chassis - Crew Cab 2014 - 2024 V8 6.4L 4 X 2/4 X 4 Automatic
SLT Cab & Chassis - Crew Cab 2014 - 2017 V8 6.4L 4 X 2/4 X 4 Manual
ST Cab & Chassis - Conventional 2014 - 2015 L6 6.7L DIESEL Turbo 4 X 4/4 X 2 Automatic & Manual
ST Cab & Chassis - Conventional 2014 - 2015 V8 6.4L 4 X 2/4 X 4 Automatic & Manual
ST Cab & Chassis - Crew Cab 2014 - 2015 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Automatic & Manual
ST Cab & Chassis - Crew Cab 2014 - 2015 V8 6.4L 4 X 2/4 X 4 Automatic & Manual
Tradesman Cab & Chassis - Conventional 2014 - 2024 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Automatic
Tradesman Cab & Chassis - Conventional 2014 - 2017 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Manual
Tradesman Cab & Chassis - Conventional 2014 - 2024 V8 6.4L 4 X 4/4 X 2 Automatic
Tradesman Cab & Chassis - Conventional 2014 - 2017 V8 6.4L 4 X 4/4 X 2 Manual
Tradesman Cab & Chassis - Crew Cab 2014 - 2024 L6 6.7L DIESEL Turbo 4 X 4/4 X 2 Automatic
Tradesman Cab & Chassis - Crew Cab 2014 - 2017 L6 6.7L DIESEL Turbo 4 X 2/4 X 4 Manual
Tradesman Cab & Chassis - Crew Cab 2014 - 2024 V8 6.4L 4 X 2/4 X 4 Automatic
Tradesman Cab & Chassis - Crew Cab 2014 - 2017 V8 6.4L 4 X 2/4 X 4 Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

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Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Lifetime Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Returns (120 Days)

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.
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.

Interchange Parts

Brand Part Number
Omnicraft QSP6

Fits Years: 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Fits Models: 4500

Expert Guides

Choosing the Right Spark Plugs for Your 2014-2024 Ram 4500

Keep your HEMI engine firing on all cylinders with the correct set of new aftermarket spark plugs.

Read Full Guide →

Related Trouble Codes (OBD-II)

34 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

P0300
Random Misfire Causes and Fixes
2011-2018 Ram 1500
P0300
Random Misfire Causes and Fixes
2015-2022 Ram ProMaster City
P0300
HEMI & Cummins Misfire Causes and Fixes
2014-2018 Ram 2500
P0300
Random Misfire Causes and Fixes
2015-2019 Ram PROMASTER CITY
P0301
Cylinder 1 Misfire Causes and Fixes
2015-2022 Ram ProMaster City
P0301
Cylinder 1 Misfire Causes and Fixes
2011-2018 Ram 1500
P0301
Cylinder 1 Misfire Causes and Fixes (HEMI & Cummins)
2015-2018 Ram 3500
P0301
Cylinder 1 Misfire Causes and Fixes
2015-2019 Ram PROMASTER CITY
P0302
Cylinder 2 Misfire Causes and Fixes
2013-2018 Ram 1500
P0302
Cylinder 2 Misfire Causes and Fixes
2013-2020 Ram 1500
P0302
Cylinder 2 Misfire Causes and Fixes
2015-2018 Ram 2500
P0302
Cylinder 2 Misfire Causes and Fixes
2015-2019 Ram PROMASTER CITY
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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