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.

Gm Genuine Parts 12135037 Multi Function Diode

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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€ 18.72

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered 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 Cyprus.

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Description

⚡ Upgrade your ride’s heartbeat with GM Genuine precision!

COMPACT POWERHOUSE - Sleek 1.3 x 1.1 x 0.3 inch design fits discreetly without compromising performance.
TRUSTED BY THOUSANDS - 4.6-star rating from over 300 users proves it’s the go-to diode for automotive pros and enthusiasts alike.
OEM QUALITY ASSURANCE - Backed by rigorous GM testing and warranty for unmatched reliability and peace of mind.
BOOST YOUR BATTERY GAME - Enhances charging system performance, especially for AGM batteries in older models—charge smarter, not harder.
PLUG AND PLAY PRECISION - Designed exclusively for GM vehicles ensuring a flawless fit and hassle-free installation.

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 original equipment standards and backed by a warranty, it ensures reliable, seamless integration and enhanced battery efficiency, especially for AGM battery setups in older models.

Specifications

ASIN	B08WHLPQR3
Best Sellers Rank	#85,767 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Alternator Diodes
Brand	GM GENUINE PARTS
Customer Reviews	4.6 4.6 out of 5 stars (334)
Date First Available	February 12, 2021
Exterior	Machined
Item Weight	0.352 ounces
Item model number	12135037
Manufacturer	GM Genuine Parts
Manufacturer Part Number	12135037
Model	GM Original Equipment
Product Dimensions	1.3 x 1.1 x 0.3 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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

2 weeks ago

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€ 18.72

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered 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 Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

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

2 weeks ago

View all Trustpilot reviews