Caterpillar 320 Lug Nut Torque & Bolt Specs by Year

OEM-referenced lug nut torque, socket size, lug pattern, and full fastener specs for every model year of the Caterpillar 320. Select a year below for exact wheel, brake, and engine torque values.

How Caterpillar 320 torque specs change by year

Lug nut torque and fastener specs can change across model-year generations of the Caterpillar 320 — a redesign often brings new wheel hardware, thread pitch, or socket size. Always confirm against the specific year that matches your VIN rather than assuming the spec carries over.

What each year page covers

Every Caterpillar 320 year page lists the OEM lug nut torque and socket size, oil drain plug torque, brake caliper bolt specs, and the full fastener database we have sourced from manufacturer service literature for that model year.

All model years (11)

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