{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

AC Delco®
MR43LTS Professional Conventional Series Spark Plug, Sold individually

Tap image and pinch to zoom.
$2.99
Manufacturer #MR43LTS
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Brand:
Notes:
0.67 in. Thread Reach; 16 mm Hex Size; 2500-12000 Ohms Resistance; (1) Ground Electrode; Nickel Ground Electrode Tip; Tapered Seat Type
Series:
Professional Conventional Series
Spark Plug Code:
MR43LTS
Electrode Tip Material:
Nickel alloy Electrode Tip
Replaces OE Number:
5614210, 19355201
Quantity Sold:
Sold individually
Warranty:
24-months or unlimited mile AC Delco limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material:
Copper Electrode Core
Gap Size:
1.14 mm
Heat Range:
3
Interchange Part Number:
5614210, 19355201
Reach:
18 mm Reach
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1974 Ford Mustang II
2+2
4 Cyl 2.3L
-
1974 Ford Mustang II
Mach 1
4 Cyl 2.3L
-
1974-1978 Ford Mustang II
Base
4 Cyl 2.3L
-
1974-1978 Ford Mustang II
Ghia
4 Cyl 2.3L
-
1974-1980 Ford Pinto
Base
4 Cyl 2.3L
-
Page 1 of 165 | Showing 1 - 5 of 821 results

Product Information

ACDELCO CONVENTIONAL OE REPLACEMENT SPARK PLUG

Choose ACDelco’s Conventional OE replacement spark plug for reliable firing and superior protection against rust and carbon fouling. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • Strictly manufactured to provide reliable function
  • Copper-core electrode optimizes heat transfer and protects against carbon fouling
  • Ground and center electrode sheathing made with nickel-chrome alloy to prevent rust
  • Widespread coverage includes most older models
  • Hot-tip insulator designed for hot, rapid firing
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Customer Reviews

Part works good great condition.
marcus f.
VERIFIED PURCHASER
Purchased on Dec 22, 2022
Professional Conventional Series Spark Plug, Sold Individually
I'm looking to order so much more in the future from y'all because it doesn't get any better than this
I'm getting better gas mileage and the quality of the of the product at this price is unbelievable I'm a 100 percent satisfied
Randy W.
VERIFIED PURCHASER
Purchased on Sep 21, 2023
Just what I need for my Ford Ranger
Travis C.
VERIFIED PURCHASER
Purchased on Jan 29, 2024