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ACDelco R45LTS6 Copper Core Spark Plug

(Cadillac DeVille 1991, Eldorado 1991, Seville 1991, Fleetwood 1991; Buick Regal 1990-91, LeSabre 1989-91, Century 1989-91, Skylark 1989-91 + 10 more models)

Manufacturer

Part Number

R45LTS6
Sale Price

$3.59

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ACDelco R45LTS6 is a professional-grade spark plug designed to deliver reliable ignition performance for a wide range of engines. Built to meet rigorous industry standards, this spark plug features a copper-core center electrode that provides superior heat transfer and thermal conductivity, helping to prevent carbon buildup at low speeds while promoting cleaner, more efficient combustion.

Key Features:

  • Copper-core center electrode for enhanced heat dissipation and conductivity
  • Resists low-speed carbon fouling for consistent performance
  • Promotes cleaner engine operation and extended service life
  • Rigorously tested under extreme conditions for dependability
  • Engineered to OE specifications for quality assurance

This single spark plug is ideal for routine maintenance and replacement, helping to restore engine performance and fuel efficiency. The R45LTS6's proven design makes it a trusted choice for automotive technicians and DIY enthusiasts alike.

Products specifications

Fits

Cadillac DeVille 1991, Eldorado 1991, Seville 1991, Fleetwood 1991; Buick Regal 1990-91, LeSabre 1989-91, Century 1989-91, Skylark 1989-91, Park Avenue 1991, Riviera 1989-91, Electra 1989-90, Reatta 1989-91 + 6 more models

Electrode Core Material

Copper

Electrode Tip Material

Nickel alloy

Ground Strap Quantity

One

Quantity

Sold individually.

Shorty Spark Plug

No

Spark Plug Seat Style

Tapered

Spark Plug Thread Size

14mm

Faster shipping than I expected. Easy order process. The ignition switch was my problem and Autoplicity part was exactly what I needed at a price better than anyone else had, with shipping included. I will definitely look to them again when I need any more parts for my Monte Carlo SS.<br>Only slight negative would be it took a few days to get an email with tracking number so I would know when my part would come. But once I got it, found it was coming sooner than I originally thought, which was great.

Great price and fast shipping. Good experience!

Very fast shipping, the product should arrive today acording to UPS, and I order it 2 days ago. The customer service is also great.<br><br>Thanks again,

Best deals Ive ever seen on Auto Products and super fast shipping and great prices on shipping!!!!

The shipping was fast and the customer service was great. I accidentally hit submit twice, and they promptly cancelled my accidental order. If you have any problems, just call!

Very fast shipping and bottom line prices for every part. Awesome website. Will be telling all my friends about and using again for sure!!

So I have an old car. It's and 83, seven years older than me. I'm also a student so I don't have much money and need to make as many repairs myself to save money. I go out to the local pep boys and auto zone to to try to find a repair manual that is for my old model but it's not available. I check online and there are very few copies on line. Autoplicity had the right manual at the lowest price by a good margin. <br><br>TLDR; Autoplicity has EVERYTHING and at a cheaper price

So far great, no problems. Received order on 04/21/2015

Prompt order processing and shipping, the item I received came in good condition and I am eager to get it installed on my car. Over the phone customer support was prompt and polite, I would order from them again.

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