Back to 2023 GMC Sierra 3500HD

2023 GMC SIERRA 3500HD

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

Repairs0 Labor586 Torque3808 Fluid9 DTC821 Battery0 Maintenance0 Recalls0

engine

Main Bearings Torque Specs

for 2023 GMC Sierra 3500HD 6.6L V8 Duramax Diesel · 4WD

Units

7 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

12 lb-ft · 16 Nm

—

—

Gasket Bolts

Critical

15 lb-ft · 20 Nm

—

—

Main Cap Bolts

Critical

1) 74 lb-ft. 2) +90 degrees.

74 lb-ft · 100 Nm

90°

—

Main Cap Side Bolts

Critical

Tighten side bolts last.

52 lb-ft · 70 Nm

—

—

Mounting Bolts

20 lb-ft · 27 Nm

—

—

Mounting Bolts

Critical

35 lb-ft · 47 Nm

—

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Building an app?

Free API access to all this data — 50 requests/day, no card required.

Get an API key →

Run a shop?

Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.

Try ShopBase →