Is there a recommended interval for changing my vehicle’s spark plugs?

Yes, the interval depends on each vehicle model’s specifications. Refer to your vehicle Owner’s Manual for guidance on when you should change your vehicle’s spark plugs.

Should I change all of my vehicle’s spark plugs at the same time?

Yes, when it is time for a scheduled spark plug replacement, all spark plugs should be changed. If a single spark plug is fouled or damaged outside of scheduled maintenance, finding the source of the damage and changing it is recommended.

Can I just clean my spark plugs instead of replacing them?

No, ACDelco does not recommend cleaning old spark plugs. Cleaning spark plugs does not repair broken components, chipped insulator tips, and worn electrodes and wires.

What is pre-ignition and can it damage my engine?

Yes, pre-ignition can cause serious damage to an engine. Pre-ignition, often accompanied by engine knocking sounds, air and fuel ignite in the engine before the spark plug fires. The condition commonly occurs when old spark plugs are worn or dirty.

Does a diesel engine require a different type of plug than a gas engine?

Yes, diesel engines require glow plugs instead of spark plugs. To learn what type of glow plugs or spark plugs your vehicle requires, refer to your vehicle Owner’s Manual for guidance.

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ACDelco R45TS Professional Conventional Spark Plug (Pack of 1)

ACDelco R45TS Professional Conventional Spark Plug (Pack of 1)

Product ID: 735964499

Details

Brand
ACDelco
Core Material
Nickel
Thread Size
24 mm
Top Material Type
Nickel
Vehicle Service Type
UTV

⚡Ribbed suppressor seal prevents misfires

🔥Copper core for superior heat transfer

🛠️Nickel-chrome alloy sheathing for corrosion resistance

€ 31.36

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Description

⚡ Ignite your engine’s potential with GM-grade spark precision!

RELIABLE IGNITION - Ribbed suppressor seal reduces spark flashover and misfires for smooth rides
ENDURING PERFORMANCE - Runs 25k+ miles with stable electrode gap—outlasts competitors
OPTIMIZED COMBUSTION - Copper core maximizes heat transfer for efficient engine performance
PRECISION ENGINEERING - Designed and validated by GM engineers for perfect fit and function
CORROSION RESISTANT BUILD - Black Onyx coating and nickel-chrome sheathing extend spark plug life

The ACDelco R45TS Professional Conventional Spark Plug is a GM-engineered, corrosion-resistant spark plug featuring a copper core for enhanced heat transfer and a ribbed suppressor seal to prevent misfires. Designed for durability and optimal performance, it delivers reliable ignition and long-lasting service life, making it ideal for Chevrolet, Buick, GMC, and Cadillac vehicles as well as marine applications.

Specifications

ASIN	B000C9SNFI
Brand	ACDelco
Brand Name	ACDelco
Compatible with Vehicle Type	UTV
Core Material	Nickel
Country of Origin	USA
Customer Reviews	4.7 out of 5 stars 1,077 Reviews
Item Weight	0.1 Pounds
Manufacturer Part Number	19354415
Model	R45TS
Number of Items	4
OEM Equivalent Part Number	19302744
Thread Size	24 mm
Top Material Type	Nickel
UPC	808709637769
Vehicle Service Type	UTV

Reviews

M**Y

Quality

Works well

21.08.2026

M**E

Perfect fitment

Cant beat oem ac delco plugs for a sbc

7.08.2026

A**Y

Good

They all did what they were bought for.

2.06.2020

S**N

good plugs at a bargain

These are the best plugs for my 1993 Chevrolet k1500 with a 5.7 liter. I run a little bit of advanced timing causing a lean burn. Other brands will have the strap close as they get hot. These plugs with a higher nickle content will run 25k miles and still have plenty of electrode left. And the gap actually still be in spec. A few other brands I have tried get to about 10k before they are closing up or electrode eroding in my setup. Keep in mind I'm not running a hot rod. I'm running a 1993 TBI with over 200k. Its a little old and a little tired. Its not worn out by no means, but it's bone stock and that was always a mild motor setup. Put 30+ years on top of that I promise you its not burning any tires. But it loves these plugs and I'll keep using them. And at a few bucks a pop they are a bargain.

1.12.2025

L**J

Maje sure you get the right plugs

Install the SP a couple weeks back . I feel my old truck is running better

19.09.2020

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€ 31.36

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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3 weeks ago

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