2011 Bobcat S650 Bolt Sizes & Torque Specs

Lug nut torque is not verified for this summary. Review the cited evidence and exact hardware application before installation.

This page distinguishes source-backed fields, unresolved conflicts and unverified legacy records for the 2011 Bobcat S650. Match the exact hardware and manual conditions before maintenance. A source for one field does not verify the other specifications.

Field evidence: Lug nut torque is not verified; no specification is assumed. Lug nut socket size is not verified; no specification is assumed. Lug nut thread size is not verified; no specification is assumed. Lug nut part number is not verified; no specification is assumed.

For the 2011 Bobcat S650, fasteners follow application-specific metric or SAE standards typical of late-model Bobcat engineering. Always confirm spec against the factory service manual before tightening safety-critical fasteners (suspension, brake, steering, head bolts).

Common fastener categories on the 2011 Bobcat S650

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket, mounting, and slide/guide-pin bolts are different fasteners. Confirm the exact axle, application and service-manual specification before reassembly.
Engine oil drain plug torque and tool size when this vehicle has a verified drain-plug record
Transmission pan, valve cover, and intake manifold bolts where the database has exact records
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque only when a vehicle-specific spark-plug row is available
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2011 model-year work: This era introduced widespread torque-to-yield (TTY) bolts on head, main, and crank pulley fasteners. TTY bolts stretch permanently when torqued and must not be reused — the spec calls for a fresh bolt every time. Always verify TTY status against the FSM before reassembly.

Tools you will need

Metric and SAE socket set (8mm-22mm plus 1/4"-7/8"), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Replacement washers, threadlocker, anti-seize, or dry-thread preparation only when the exact service procedure specifies them

Frequently asked questions

What is the lug nut torque on a 2011 Bobcat S650?

Specification not verified for this lug nut summary. Do not substitute another model year's value. Field evidence: Lug nut torque is not verified; no specification is assumed. Lug nut socket size is not verified; no specification is assumed. Lug nut thread size is not verified; no specification is assumed. Lug nut part number is not verified; no specification is assumed.

What socket size do I need for the 2011 Bobcat S650 lug nuts?

Confirm the socket against the actual lug nut; no size is assumed here.

Are the 2011 Bobcat S650 fasteners metric or SAE?

Metric and SAE hardware can both appear on one vehicle, depending on the component and exact application. Use the individually verified field and the actual fastener or service manual rather than inferring a standard from the model year, make or generation. Bolt-head markings can help identify the hardware at the bench.

Other Bobcat S650 years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 2011 Bobcat S650 oil drain plug torque & size

7 recorded 2011 Bobcat S650 fasteners

Per-field evidence and legacy records for the 2011 Bobcat S650. A verified torque does not verify socket size, thread or part number. Unverified records are not installation instructions; conflicting specifications are withheld. 1 of the 7 records carry legacy review labels (last reviewed June 2026); those labels do not verify individual fields.

Wheels — 2011 Bobcat S650

Wheel fastener records and field evidence for the 2011 Bobcat S650. Wheel Lug Nut (Wheels). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Engine — 2011 Bobcat S650

Engine fastener records and field evidence for the 2011 Bobcat S650. Engine Oil Drain Plug (Engine). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Drivetrain — 2011 Bobcat S650

Drivetrain fastener records and field evidence for the 2011 Bobcat S650. Drive Motor Chain Tensioner Bolt (Drivetrain). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Hydraulic Motor Mounting Bolt (Drivetrain). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Body — 2011 Bobcat S650

Body fasteners on the 2011 Bobcat S650. ROPS Mounting Bolt (Body). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Attachment — 2011 Bobcat S650

Attachment fasteners on the 2011 Bobcat S650. Loader Arm Pivot Bolt (Attachment). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Bucket Mounting Bolt (Attachment). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then compare any source-backed fields on this page with the actual hardware and service manual.

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