NGK 7243 Iridium IX Spark Plug - M14 x 1.25, 5/8 in Hex

Skip to product information
NGK - 7243 - Ngk Iridium Ix Spark Plug

Description

NGK Iridium IX spark plugs are designed for performance enthusiasts, offering outstanding acceleration, fuel efficiency, and durability.

  • Extreme ignitability
  • Exceptional anti-fouling properties
  • Tapered cut ground electrode for improved starting, idling, and throttle response
  • Iridium fine wire center electrode with durability six times harder than platinum
  • Iridium alloy's extremely high melting point is ideal for modern engines

For more technical details and/or manufacturers product guides, email us.

Most orders leave our warehouse within 1 business day unless otherwise noted.
*Add this item to the cart to estimate shipping costs and any applicable taxes.

See something wrong with this listing?

Tick what needs fixing, add the correct details, and send. It goes straight to our product team.

What needs fixing

A picture helps us fix it faster (JPG, PNG, HEIC or GIF, up to 20 MB).

Features

  • Metallurgy:Single Iridium
  • Stock Number:7243
  • Part Number:TR5-1IX
  • Short Style Spark Plug:No
  • Service Number:TR5-1IX
  • Resistance:5000.0 (82)
  • Ground Electrode Tip Design:Taper Cut
  • Ground Configuration:J-Gap
  • Thread Type Standard:Metric
  • Ground Electrode Core Material:Nickel
  • Washer (s) Included:No
  • Grade Type:Performance
  • Electrical Terminal Type:Non-Removable Nut
  • Center Electrode Core Material:Copper
  • Center Electrode Tip Material:Iridium
  • Pre-Gap Size 1:.040 (IN)
  • Pre-Gap Size 2:1.0 (MM)
  • Ground Electrode Quantity:1
  • Hex Size:5/8" (16mm)
  • Insulator Height 1:2.07 (IN)
  • Insulator Height 2:52.5 (MM)
  • Manufacturer Heat Range:5
  • Seat Type:Tapered
  • Reach 1:0.689 (IN)
  • Reach 2:17.5 (MM)
  • Insulator Material:Ceramic
  • Resistor Type:Yes
  • Skirt Length 1:0.118 (IN)
  • Skirt Length 2:3.0 (MM)
  • Thread Size:M14 - 1.25
  • Ground Electrode Tip Material:Nickel
  • Skirt:Yes
  • Center Electrode Insulator Tip Projection 1:0.30 (IN)
  • Center Electrode Insulator Tip Projection 2:7.5 (MM)
  • Center Electrode Design:Fine Wire
  • Center Electrode Projection:Extra-Long Projection
  • Interchange - ACDELCO:41-811 11 41-824 R43NTSE 41-811 11 41-824 R43NTSE
  • Interchange - ACDELCO GOLD/PROFESSIONAL:41-942 R42XLS 1 R42TS 41-805 R44LTS 12 41-810 R42LTS R43XLS 41-822 4 1 R44LTS R44LTSM 12 R43XLS 41-942 R42LTS R44NTSE R42XLS 1 41-805 R44LTSM 12 R44LTS 41-800 R42LTS 41-812 4 R42TS R43XLS R44LTSM 41-812 R44NTSE R42TS 4 41-800 R44LTS R42LTS 41-822 41-810 41-800 R44NTSE 41-812 4 R44LTSM R42XLS R43XLS 41-942 R44NTSE 41-805 R42XLS 1 41-822 R42TS 41-810 12 41-822 41-810 41-812 41-800 41-805 41-942
  • Interchange - ACDELCO GOLD/PROFESSIONAL CANADA:R44LTSM R43XLS 41-812 41-800 R42TS 41-810 41-822 41-942 1 R42XLS 12 41-805 R44NTSE R44LTS R42LTS 4
  • Interchange - ACDELCO SPECIALTY:4
  • Interchange - ACDELCO SPECIALTY CANADA:4
  • Interchange - AUTOLITE:AP5143
  • Interchange - AUTOPART INTERNATIONAL:NGK7243
  • Interchange - AUTOZONE/ACDELCO:41-822 41-942 R42XLS 41-805 R44NTSE R42LTS R44LTS R44LTSM R43XLS 41-800 41-812 41-824 R42TS 41-811 41-928 41-810
  • Interchange - AUTOZONE/AUTOLITE:AP766 AP2546 AP765 XP5145 APP2546 AP2544 AP764 5143 2545 APP2545 AP5144 AP2545 2546 APP2544 AP5143 2543 403 AP2543 2544 APP5144 XP5144
  • Interchange - AUTOZONE/NGK:7243
  • Interchange - NAPA CANADA/AC DELCO SPARK PLUGS - ACP:41800
  • Interchange - NAPA CANADA/AUTOLITE SPARK PLUGS- AUT:XP5143 XP606 AP5143
  • Interchange - NAPA CANADA/NGK SPARK PLUGS - NGB:7243
  • Interchange - NAPA/AC SPARK PLUGS-AC:41800
  • Interchange - NAPA/AUTOLITE - AUT:XP606 XP5143 AP5143
  • Interchange - NAPA/E3 SPARK PLUGS-EEE:E353
  • Interchange - NAPA/NGK SPARK PLGS-OXYGEN SENS-NGK:7243 7060 3716
  • Interchange - NGK CANADA BASE NUMBERS:TR5-1IX 7243
  • Interchange - NGK CANADA STOCK NUMBERS:7243
  • Interchange - NGK CANADA/NTK SENSORS:7243
  • Interchange - NGK USA BASE NUMBERS:TR5-1IX
  • Interchange - OMNICRAFT:QSP10
  • Applications 1:Ford (35), 1983 - 1990
  • Applications 2:Ford (3), 1984 - 1984
  • Applications 3:Mercury (16), 1982 - 1987
  • Applications 4:Mercury (2), 1983 - 1984

Reviews

Details

Product Details:

  • Manufacturer:NGK
  • Part Number:7243
  • UPC:087295172438
  • Sold in QTY:1
  • Condition:New
  • Country of Origin:Japan

Prop65

WARNING: May cause Cancer and/or Reproductive Harm - www.P65Warnings.ca.gov About California Proposition 65
0 Review(s) Write a Review
Sale price  $7.15 Regular price  $7.37
Flash sale

Availability: 16 get them while you can!

Ships in 1 business day

Request a quantity

NGK 7243 Iridium IX Spark Plug - M14 x 1.25, 5/8 in Hex

Our price $7.15 · 16 in stock now

What happens next

  1. We check with our supplier and answer by email by the next business day.
  2. If we can get them, the email has your price and a button to order.
  3. Use it and check out as usual.

Express Checkout Options: Shop Pay, Venmo, Apple Pay, Google Pay and PayPal

What customers are saying

  • ★★★★★Thank you so much,— Jim, CA
  • ★★★★★Received my merchandise today. All is good.— Dave, IL
  • ★★★★★I was happy with the quality in the brass strips, quick delivery, and your service— Marvin, FL
  • ★★★★★Service and price and ease of ordering was great!— Annette, NJ
  • ★★★★★I just wanted to say how impressed I am with your service!— Jason, IA
  • ★★★★★The items purchased are exactly what I ordered. No surprises and that is always good.— Chuck, WA
  • ★★★★★I am really thankful that my order was handled so fast.— Matt, MN
  • ★★★★★You are the best this is exactly what I need!— Robert, NJ
  • ★★★★★Thank you for double checking the fit!— Jeffrey, MA
  • ★★★★★I appreciate your rapid service!— Richard, AR
  • ★★★★★They were very helpful, both online and over the telephone.— Karen, IL
  • ★★★★★Thank you for double checking the fit. The Part Fits Perfectly! Thank you for all of your help!!!— John, CA
  • ★★★★★I was shocked by how quickly I received my order.— Jason, CA
  • ★★★★★I appreciate your quick follow-up and the great pricing.— Colin, WA
  • ★★★★★Great Service! Completely hassle free and very fast :) Would shop again.— Mick, CA
  • ★★★★★I wanted to let you know I received the u joint and it is exactly what I was looking for. Thanks again!— Mark, TX
  • ★★★★★Thanks again! You guys are great and now bookmarked!— Fran, PA
  • ★★★★★Wow! Thanks for the quick shipping!!!— Rob, NY
  • ★★★★★You folks are all right.— Jim, CA
  • ★★★★★You really took care of me on this!— Brett, FL

More FromNGK Related Items

Questions shoppers ask

See all FAQs
How soon does it ship?
Most orders leave our warehouse within 1 business day unless otherwise noted. Add the item to your cart to see shipping cost and any tax.
Can I return it?
Most items can be returned within 30 days of delivery if they are unused and in their original, undamaged packaging. Email us for a Return Authorization (RA) number first, and make sure the item reaches our warehouse within those 30 days. A 15% restocking fee applies and you pay return shipping, unless the item is defective or the mistake was ours. Special orders and items marked No Return can't be returned. Full return policy.
Do you offer quantity discounts?
Many items do. When this one has them, the price breaks are listed with the price above, and the price updates as you change the quantity. Need a larger quantity than we show? Ask us.
Your prices are so good, is it new?
Yes. This item is new and in its original NGK packaging unless the description above says otherwise.

Related Items