Are these made for square or round coils ?

The coil connection is a round rubber boot that goes over the ceramic protrusion of the coil and the electrode wire goes inside the coil. The coil boot is not square but round! Which was the case with my 2004 GMC Sierra.

Will these fit a 2002 Chevy Avalanche 5.3?

They should fit your 02 Chevy 5.3. I installed them on my 05 Chevy 5,3 and they fit perfectly.

Will these fit a 2006 gmc sierra 1500

i got a chevy with a 6.0 2004 and they fit great so i would say yes they are almost the same

Will these fit 2016 silverado 5.3l

They will fit .the wires are a little longer than the ac delco ones. On the passenger side the furthest away might have to make an adjustment to the heat shield. Check my pictures of my engine.

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JDMSPEED High Performance Spark Plug Ignition Wire for 2000-2009 Chevy GMC V8

JDMSPEED High Performance Spark Plug Ignition Wire for 2000-2009 Chevy GMC V8

Product ID: 250112917

Details

Brand
JDMSPEED
Connector type
Boot
EU Spare Part Availability Duration
1 Years
Item weight
0.45 Kilograms
Material
Rfi

⚡10.2mm Spiral Wound Wire

🔥Ultra High Temp Silicone Boots

🛡️Kevlar Core for Ultra Low Resistance

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Description

⚡ Ignite your engine’s potential with JDMSPEED – where power meets precision!

KEVLAR CORE POWER - Ultra low resistance core ensures maximum ignition efficiency and RFI suppression.
PLUG PLAY READY - 100% new construction, ready for immediate installation—no hassle, just performance.
TRUSTED RELIABILITY - Backed by a 1-year warranty and 4.6-star rating from over 4,000 satisfied pros.
HEAT RESISTANT SILICONE BOOTS - High-temp silicone boots and sleeves withstand extreme engine conditions without wear.
PRECISION SPIRAL WOUND DESIGN - 10.2mm thick wire engineered for optimal spark delivery and durability.

The JDMSPEED High Performance Spark Plug Ignition Wire is a robust 10.2mm spiral wound cable featuring an ultra low resistance Kevlar core and high-temp silicone boots. Designed for 2000-2009 Chevy GMC V8 engines, it delivers superior ignition efficiency and durability, backed by a 1-year warranty and trusted by thousands of users.

Specifications

ASIN	B076G82DX3
Brand	JDMSPEED
Cable Type	spark plug wire
Connector Type	Boot
Customer Reviews	4.6 4.6 out of 5 stars (4,131)
EU Spare Part Availability Duration	1 Years
Item Weight	0.45 Kilograms
Manufacturer	JDMSPEED
Manufacturer Part Number	D071
Material	Rfi
Model Number	D071
UPC	714131641352
Unit Count	1.0 count
Wire Diameter	10.2 Millimetres

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€ 87.79

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In stock

Sold byAmazon AustriaDelivered 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 Austria.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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