Back to 2022 GMC Sierra 3500HD

2022 GMC SIERRA 3500HD

6.6L V8 Duramax Diesel•4WD•AUTOMATIC•diesel•turbo

Repairs0 Labor593 Torque3842 Fluid9 DTC821 Battery0 Maintenance0 Recalls0

ignition

Spark Plug Wires Torque Specs

for 2022 GMC Sierra 3500HD 6.6L V8 Duramax Diesel · 4WD

Units

7 fasteners

Seq

Component

Torque

Angle

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Cover Screws

8 lb-ft · 11 Nm

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Engine Cover Clips

2 lb-ft · 3 Nm

—

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Ignition Coil Bolt

8 lb-ft · 11 Nm

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Ignition Coil Bolts

6 lb-ft · 8 Nm

—

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Mounting Bolts

20 lb-ft · 27 Nm

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Spark Plug

Critical

Gap before install

15 lb-ft · 20 Nm

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Spark Plugs - Aluminum Head

Critical

Apply anti-seize to threads

15 lb-ft · 20 Nm

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