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 Professional 41-103 (12625058) Iridium Spark Plug (Pack of 1)

ACDelco Professional 41-103 (12625058) Iridium Spark Plug (Pack of 1)

Product ID: 2995695

Details

Brand
ACDelco
Core Material
Iridium
Thread Size
1(mm)
Top Material Type
Iridium
Vehicle Service Type
Car Truck Van

⚡Iridium tip for superior spark efficiency

⏱️Improved cold start & quicker acceleration

🛡️One-piece suppressor seal blocks RF interference

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13488CFA

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Details

Brand
ACDelco
Core Material
Iridium
Thread Size
1(mm)

Description

⚡ Ignite your drive with precision power and lasting performance!

LONGER ELECTRODE LIFE - Suppressor seal meters spark energy precisely, extending spark plug lifespan and reducing maintenance frequency.
ADVANCED SUPPRESSOR SEAL - One-piece seal blocks disruptive radio frequencies, protecting your vehicle’s sensitive electronics for uninterrupted performance.
GUARANTEED GENUINE QUALITY - Backed by a 7-year/unlimited mile warranty and trusted by thousands, avoid counterfeit risks and drive with confidence.
PRECISION IRIDIUM TECHNOLOGY - Experience unmatched engine idle stability and smoother rides with a high-melting-point iridium tip designed for durability and peak performance.
CUTTING EDGE ELECTRODE DESIGN - Smaller, more efficient electrodes deliver faster cold starts and lightning-quick acceleration, keeping you ahead in every drive.

The ACDelco Professional 41-103 Iridium Spark Plug delivers superior engine performance through a durable iridium tip, advanced electrode design for faster starts, and a suppressor seal that protects vehicle electronics. Engineered for exact OEM fit and backed by a 7-year warranty, it ensures genuine quality and long-lasting reliability for cars, trucks, and vans.

Specifications

ASIN	B000IZ2AVE
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#40,481 in Automotive ( See Top 100 in Automotive ) #286 in Automotive Replacement Spark Plugs
Brand	ACDelco
Brand Name	ACDelco
Compatible with Vehicle Type	Car, Truck, Van
Core Material	Iridium
Customer Reviews	4.8 out of 5 stars 1,732 Reviews
Gap Size	1 Millimeters
Included Components	12681663
Item Type Name	SPARK PLUG ASM-GAS ENG IGN
Item Weight	1.44 ounces
Manufacturer	ACDelco
Manufacturer Part Number	12625058
Manufacturer Warranty Description	7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.
Model Number	41-103
Number of Packs	1
OEM Equivalent Part Number	12625058
Thread Size	1(mm)
Top Material Type	Iridium
UPC	808709616122
Unit Count	1.0 Count
Vehicle Service Type	Car, Truck, Van

Reviews

R**Y

15.10.2023

J**E

10.04.2026

T**Y

12.04.2026

M**A

6.11.2024

W**E

1.01.2026

M**.

23.12.2022

L**T

15.07.2025

C**N

30.09.2024

C**D

3.04.2026

A**Q

12.01.2024

1**2

5.09.2021

D**.

23.01.2025

J**G

28.06.2019

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