How to replace a spark plug on 2006 GMC Sierra 3500?

Removing the wire to replace the spark plug one must first loosen the plug. Wipe dirt off the surrounding before removal. In case of changing several plugs, a tray with a mark is used. Make sure the washer is put in place and look at the gap. Use your hand to start the plug, and then screw it.

OEM 2006 GMC Sierra 3500 Spark Plug

Ignition Spark Plug

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2006 GMC Sierra 3500 Glow Plug Part Number: 12639701
$25.20 MSRP: $45.00
You Save: $19.80 (44%)
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Product Specifications
- Other Name: Glow Plug, Glow; Diesel Glow Plug; Glow Plug, Spark Ignition
- Replaces: 97364968
- Item Weight: 0.40 Pounds
- Item Dimensions: 6.5 x 1.0 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 8
- SKU: 12639701
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS

2006 GMC Sierra 3500 Spark Plug

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2006 GMC Sierra 3500 Spark Plug Parts and Q&A

Q: How to replace a spark plug on 2006 GMC Sierra 3500?
A: Removing the wire to replace the spark plug one must first loosen the plug. Wipe dirt off the surrounding before removal. In case of changing several plugs, a tray with a mark is used. Make sure the washer is put in place and look at the gap. Use your hand to start the plug, and then screw it.