When do spark plug wires need to be replaced?

The lifespan of spark plug wires varies based on factors including the climate and driving habits, but they generally last about 60,000-100,00 miles. Periodic replacement helps maintain the engine’s performance.

What are signs spark plug wires should be replaced?

Common signs of wear can include a rough-running engine, possible misfires and even hard starting. Acceleration can be affected and fuel economy can decline. Visually, cracks or fraying of the wires are signs replacement is needed.

Are all spark plug wires the same?

No. Material composition and design can vary widely, resulting in varying levels of conductivity, durability and electrical interference suppression. GM Genuine Parts and ACDelco Gold Spark Plug Wires meet GM factory specifications.

Do battery cables need to be replaced often?

Generally, battery cables don't need periodic replacement, but they are subject to corrosion and other forces of wear that can affect their performance. This is especially true in climates of high humidity, where the roads are salted in the winter.

What are signs of the battery cables need to be replaced?

If loose connections are ruled out, hard starting, a failure to start and other intermittent electrical issues are common signs the battery cables should be checked for corrosion and other signs of wear.

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Our Other Brands:Hewyn|Selfship

GM Genuine Parts 13503102 Gray Multi-Purpose Relay

GM Genuine Parts 13503102 Gray Multi-Purpose Relay

Product ID: 78905895

Details

Brand
GM GENUINE
Connector Type
Through Hole
Contact Type
Normally Open
Mounting Type
DIN Rail Mount
Operation Mode
Automatic

⚡1 KW power handling

🔧OE-certified fit & function

🛡️12-month/12,000-mile warranty

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72 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your ride with GM Genuine precision — don’t settle for less!

OE QUALITY YOU CAN TRUST - Manufactured to rigorous original equipment standards, guaranteeing factory-level reliability and performance.
BACKED BY A SOLID WARRANTY - Enjoy peace of mind with a 12-month/12,000-mile warranty, ensuring long-term durability and support.
ROBUST 1 KW POWER CAPACITY - Handles high electrical loads seamlessly, optimizing your vehicle’s electronic systems without compromise.
PLUG AND PLAY THROUGH HOLE CONNECTOR - Easy installation with a secure DIN rail mount, minimizing downtime and hassle.
PRECISION ENGINEERED FOR GM VEHICLES - Designed and validated by GM engineers to ensure perfect compatibility with Chevrolet, Buick, GMC, and Cadillac models.

The GM Genuine Parts 13503102 Gray Multi-Purpose Relay is an OE-certified automotive relay engineered by GM to optimize vehicle electronics. It supports up to 1 KW power, features a through-hole connector with DIN rail mounting, and comes with a 12-month/12,000-mile warranty. Trusted by thousands, it ensures seamless integration and reliable performance for Chevrolet, Buick, GMC, and Cadillac vehicles.

Specifications

ASIN	B01L7EHB22
Best Sellers Rank	#115,015 in Automotive ( See Top 100 in Automotive ) #21 in Automotive Replacement Relay Control Module Relays
Brand Name	GM GENUINE PARTS
Connector Type	Through Hole
Contact Type	Normally Open
Customer Reviews	4.6 4.6 out of 5 stars (570)
Global Trade Identification Number	00808709581659, 40808709581657
Included Components	Relay
Item Type Name	Relay
Item Weight	0.1 Pounds
Manufacturer	ACDelco
Model	13503102
Mounting Type	DIN Rail Mount
Operation Mode	Automatic
Part Number	13503102
Specification Met	OE
UPC	808709581659
Unit Count	1.0 Count
Warranty Description	12 Months / 12,000 Miles (Parts Only)
Wattage	1 KW

Reviews

M**E

Works as advertised. Factory part that fits.

14.09.2025

D**C

2006 trailblazer LS fits powertrain and starter 100% happy

2006 trailblazer LS 4.2L fit perfect for the powertrain and the starter bought 2 replaced both at same time bought dec 9th 2024 2/2/26 still running great would buy again

2.02.2026

C**.

Interchangeable with Mopar 04692141AA RELAY MINI and only 1/4 the cost!

I am diagnosing an intermittent starting problem with my 2008 Jeep JK and the next item on that long list is the starter relay switch located within the main fuse block under the hood at position K3. The OEM relay is a Mopar 04692141AA RELAY MINI located here on Amazon: https://www.amazon.com/dp/B00MJ2UE26. It took a lot of research but I was able to confidently purchase this Delphi relay at only 1/4th the price of the Mopar relay and I have confirmed it is a 100% drop-in compatible replacement. Beware this relay is capable of being plugged into the holder in two orientations so be sure you get it right! If you do use this Delphi in place of a Mopar, ignore the branding on the top of the cover and read the pinout numbers to get the correct orientation. In my case, the Delphi is 'upside down' to the OEM Mopar printing with the pinout in the correct orientation. Epstein didn't kill himself!

1.07.2024

J**C

Quality

Great original equipment ac Delco relay works well

8.11.2019

A**W

Fit my 2007 kia sedona.

Relay worked for my 07 kia sedona. Cheaper and easier than anywhere else we could find.

3.12.2024

D**W

great product

works as it should

21.08.2024

A**S

Simply works

Drop in replacement for the cooling fan relays on 07 Malibu. Works well.

26.08.2024

E**E

Always check your fuses and relays

I had a problem with my electric fans not wanting to turn on. I went to check my fuses and they were all good. When I checked my relays, one was burned out. I replaced that one that was for my primary fan and worked with this OEM replacement. Definitely worth every penny when you go with Genuine GM or AC Delco.

13.07.2022

M**G

Sin problemas de envío y si funcionó

2.10.2024

F**S

I must have ordered the wrong one. It's doesn't fit where i wanted the relay.

27.11.2025

B**B

Had a problem with my '06 Vibe having a start delay problem. Suspected the starter relay was failing. Fast two-day delivery, 3 minute install and works great!! Now, the starter turns over for as long as the key is turned. A perfect DIY experience with no mechanic charges performed in my driveway!!

5.11.2019

A**.

Duradero y de buena calidad lo uso para un Pontiac G4 GT 2006

4.01.2024

R**.

Fits well and is very reliable

23.04.2023

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72 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

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