How to replace spark plugs on 2002 Chevrolet Avalanche 2500?

A proper replacement of spark plugs begins with wire removal and rotating each Spark Plug by one to two turns. The mechanic must clean the Spark Plug area with brush or air pressure before taking out each plug individually while numbering the trays accordingly. During installation position each Spark Plug washer correctly then check the Spark Plug gap while adjusting them for 1.524 mm (0.060 in). During installation of spark plugs on iron heads the torque should be set to 20 n.m (15 lb ft) but new iron heads require 30 n.m (22 lb ft) of torque. Reinstall the Spark Plug Wires as the last step.

OEM 2002 Chevrolet Avalanche 2500 Spark Plug

Ignition Spark Plug

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2002 Chevrolet Avalanche 2500 Spark Plug
Part Number: 12681665
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaced by: 12681664
- Replaces: 25162555, 12607234, 25315018, 25162556, 19256067, 89017883
- Item Weight: 1.10 Pounds
- Item Dimensions: 3.8 x 1.1 x 6.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12681665
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Chevrolet Avalanche 2500 Submodels:
- Base, LS, LT | 8 Cyl 8.1 L GAS
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2002 Chevrolet Avalanche 2500 Glow Plug
Part Number: 97226202
$19.63 MSRP: $35.06
You Save: $15.43 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Glow Plug, Spark Ignition
- Item Weight: 0.40 Pounds
- Item Dimensions: 7.7 x 5.1 x 0.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 8
- SKU: 97226202
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2002 Chevrolet Avalanche 2500 Submodels:
- Base | 8 Cyl 8.1 L GAS

2002 Chevrolet Avalanche 2500 Spark Plug

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2002 Chevrolet Avalanche 2500 Parts Questions & Experts Answers

Q: How to replace spark plugs on 2002 Chevrolet Avalanche 2500?
A: A proper replacement of spark plugs begins with wire removal and rotating each Spark Plug by one to two turns. The mechanic must clean the Spark Plug area with brush or air pressure before taking out each plug individually while numbering the trays accordingly. During installation position each Spark Plug washer correctly then check the Spark Plug gap while adjusting them for 1.524 mm (0.060 in). During installation of spark plugs on iron heads the torque should be set to 20 n.m (15 lb ft) but new iron heads require 30 n.m (22 lb ft) of torque. Reinstall the Spark Plug Wires as the last step.