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: 255754225

Details

Brand
ACDelco
Core material
Copper
Thread size
14mm
Top material type
Nickel
Vehicle service type
UTV

⚡Copper core for superior heat transfer

🔇Ribbed suppressor seal prevents misfires

🛡️Black Onyx coating resists corrosion

$32.64

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Description

⚡ Ignite your engine’s potential with ACDelco’s pro-grade spark plug!

UNMATCHED DURABILITY - Nickel-chrome alloy sheathing guards against corrosion for long-lasting performance
MARINE READY RELIABILITY - Certified for marine use—trust it on land or water without compromise
PRECISION HEAT MANAGEMENT - Copper core maximizes heat transfer, ensuring optimal engine efficiency
FLAWLESS IGNITION EVERY TIME - Ribbed suppressor seal minimizes spark flashover and misfires for smooth rides
CORROSION RESISTANT BLACK ONYX - Advanced coating keeps your spark plug pristine under harsh conditions

The ACDelco R45TS Professional Conventional Spark Plug features a copper core for excellent heat transfer, a corrosion-resistant Black Onyx coating, and a ribbed suppressor seal to prevent misfires. Designed for universal fit and marine applications, it delivers reliable ignition and durability trusted by professionals and enthusiasts alike.

Specifications

ASIN	B000C9SNFI
Automotive Fit Type	Universal Fit
Best Sellers Rank	#63,060 in Automotive ( See Top 100 in Automotive ) #341 in Automotive Performance Spark Plugs
Brand	ACDelco
Brand Name	ACDelco
Compatible with Vehicle Type	UTV
Core Material	Copper
Core material	Copper
Customer Reviews	4.7 out of 5 stars 1,078 Reviews
Included Components	19354415
Item Type Name	SPARK PLUG ASM,GAS ENG IGN
Item Weight	45 g
Manufacturer	ACDelco
Manufacturer Part Number	19354415
Model Number	R45TS
Number of Items	1
OEM Equivalent Part Number	19302744
Thread Size	14mm
Thread size	14mm
Top Material Type	Nickel
Top material type	Nickel
UPC	808709637769
Unit Count	1 Count
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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TrustScore 4.5 | 7,300+ reviews

Vikram D.

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

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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$32.64

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

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TrustScore 4.5 | 7,300+ reviews

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2 months ago

Yusuf A.

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