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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We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

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WE SOURCE ITEMS FROM

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Customer Services

About Us

Customer Support

Our Other Brands:Hewyn|Selfship

Description

⚡ Power up your ride with GM Genuine precision!

TRUSTED GM WARRANTY - Backed by GM’s rigorous testing and warranty for peace of mind on every drive.
PLUG PLAY PRECISION - Vehicle-specific fit means hassle-free installation—no guesswork, just seamless integration.
BOOST YOUR BATTERY GAME - Optimizes charging systems, especially for AGM batteries in older models—extend your ride’s life.
UPGRADE WITH CONFIDENCE - Join thousands of satisfied drivers who’ve enhanced their vehicle’s electrical reliability.
ENGINEERED FOR PERFECTION - Designed and tested to meet GM Original Equipment standards for flawless performance.

The GM Genuine Parts 12135037 Multi-Function Diode is a compact, vehicle-specific inline diode engineered to optimize electrical flow and charging system performance in GM vehicles. Tested to meet strict GM Original Equipment standards and backed by a warranty, it ensures a precise fit and reliable operation, making it an essential upgrade for maintaining or enhancing your Chevrolet, Buick, GMC, or Cadillac’s electrical system.

Specifications

ASIN	B08WHLPQR3
Best Sellers Rank	300,857 in Automotive ( See Top 100 in Automotive ) 352 in Car Fuses
Brand	GM GENUINE PARTS
Customer Reviews	4.6 4.6 out of 5 stars (313)
Date First Available	12 April 2022
Exterior	Machined
Item Weight	10 g
Item model number	12135037
Manufacturer	GM Genuine Parts
Manufacturer part number	12135037
Model	GM Original Equipment
Product Dimensions	3.3 x 2.79 x 0.76 cm; 10 g

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