Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

2006 - 2015 Lexus IS250 Spark Plug (NGK) NEW

$ 20 .58

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.044"
Ruthenium HX High Ignitability Spark Plug
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug; Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.
Brand: NGK
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Center Electrode Core Material Copper
Center Electrode Design Fine Wire
Center Electrode Insulator Tip Projection 0.12, 3.0
Center Electrode Projection Mid Projection
Center Electrode Tip Material Ruthenium
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 Dual Fine Electrode (dfe) - High Ignitability
Ground Electrode Tip Material Platinum
Hex Size 5/8" (16mm)
Insulator Height 1.99, 50.5
Insulator Material Ceramic
Manufacturer Heat Range 6
Material Grade Ruthenium
Part Number Lfr6ahx-s
Pre Gap Size .044, 1.1
Reach 1.043, 26.5
Resistance 5000.0
Resistor Type Yes
Seat Type Flat
Service Number Lfr6ahx-s
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 94122
Thread Diameter 0.551, 14.0
Washer Included Yes
Washer Type Crush

Vehicle Fitment Guide

This part fits the following vehicles:

Lexus 1 model (tapclick to expand)(tapclick to hide)
IS250 2006-2015 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Sedan 2006 - 2015 V6 2.5L AWD/RWD Automatic
Base Sedan 2006 - 2012 V6 2.5L AWD/RWD Manual
C Convertible 2010 - 2015 V6 2.5L RWD Automatic
C Convertible 2010 - 2012 V6 2.5L RWD Manual
C F Sport Convertible 2014 - 2015 V6 2.5L RWD Automatic
F Sport Sedan 2014 - 2015 V6 2.5L AWD/RWD Automatic
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.

Policies

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.

Return Policy

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.

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.
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug; Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Interchange Parts

Brand Part Number
BMW 12120032137
BMW 12120035915
BMW 12120037663
Honda 12290-RBJ-003
Honda 12290-RMX-013
Honda 12290-RW0-003
Lotus A132E6281S
Subaru 22401-AA580
Toyota 90919-01191
Toyota 90919-01235
Toyota 90919-01236
Toyota 90919-01247
Toyota 90919-01249
Toyota 90919-01266
Toyota 90919-A1002
Volvo 31286359
Volvo 31312691

Fits Years: 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Fits Models: IS250

Go-Parts Garage · Featured Guide

Spark Plug Replacement Guide for the 2006-2015 Lexus IS250

Keep your IS250's V6 engine running smoothly with the right spark plugs.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

24 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 Carbon Buildup Fixes
2006-2010 Lexus IS 250
P0300
Random Misfire Causes and Fixes
2011-2015 Lexus RX HYBRID
P0301
Cylinder 1 Misfire Causes and Fixes
2006-2010 Lexus IS 250
P0301
Cylinder 1 Misfire Causes and Fixes
2011-2015 Lexus RX HYBRID
P0301
Cylinder 1 Misfire Causes and Fixes
2007-2012 Lexus ES 350
P0302
Cylinder 2 Misfire Causes and Fixes
2006-2010 Lexus IS 250
P0302
Cylinder 2 Misfire Causes and Fixes
2011-2015 Lexus RX HYBRID
P0303
Cylinder 3 Misfire Causes and Fixes
2006-2010 Lexus IS 250
P0303
Cylinder 3 Misfire Causes and Fixes
2006-2013 Lexus IS250
P0303
Cylinder 3 Misfire Causes and Fixes
2011-2015 Lexus RX HYBRID
P0304
Cylinder 4 Misfire Causes and Fixes
2006-2010 Lexus IS 250
P0304
Cylinder 4 Misfire Causes and Fixes
2006-2015 Lexus IS350
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

×

Search by Vehicle

1
2
3
Added to cart · Part