2016 Subaru Impreza 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 2016 Subaru Impreza. 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.

Axle Nut — torque: 162 ft-lbs (220 Nm) — SKF Torque specification guide 2023 - Front & rear axle nut, hub mount and lug nut torque specifications, p. PDF p. 23. Front axle/half-shaft nut torque as printed by SKF for this make/model/year; no procedure footnote printed by SKF for this row. Applies to: 2.0L H4: Base, Limited, Premium, Sport; axle: front (4 configurations).

Subaru wheel and drain-plug hardware is easy to confuse with other Japanese makes because the thread pitch and socket can differ from the apparent norm. Use the exact row for this year and confirm the head size before applying torque.

Common fastener categories on the 2016 Subaru Impreza

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 2016 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 2016 Subaru Impreza?

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 2016 Subaru Impreza lug nuts?

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

Are the 2016 Subaru Impreza 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 Subaru Impreza years

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

5 recorded 2016 Subaru Impreza fasteners

Per-field evidence and legacy records for the 2016 Subaru Impreza. A verified torque does not verify socket size, thread or part number. Unverified records are not installation instructions; conflicting specifications are withheld.

Wheels — 2016 Subaru Impreza

Wheel fastener records and field evidence for the 2016 Subaru Impreza. Lug Nut (All corners). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Brakes — 2016 Subaru Impreza

Brake fastener records and field evidence for the 2016 Subaru Impreza. Front Caliper Bracket Bolt (Front caliper bracket). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Engine — 2016 Subaru Impreza

Engine fastener records and field evidence for the 2016 Subaru Impreza. Oil Drain Plug (Oil pan). Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified. Spark Plug. Torque: not verified. Socket size: not verified. Thread: not verified. Part number: not verified.

Drivetrain — 2016 Subaru Impreza

Drivetrain fastener records and field evidence for the 2016 Subaru Impreza. Axle Nut (Front hub). Torque: 162 ft-lbs (220 Nm). Source: SKF Torque specification guide 2023 - Front & rear axle nut, hub mount and lug nut torque specifications, p. PDF p. 23 (https://cdn.skfmediahub.skf.com/api/public/094dddb2a353170f/pdf_preview_medium/094dddb2a353170f_pdf_preview_medium.pdf). Front axle/half-shaft nut torque as printed by SKF for this make/model/year; no procedure footnote printed by SKF for this row engine: 2.0L H4; trim: Limited; axle: front 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.

Loading the interactive 2016 Subaru Impreza fastener lookup with per-bolt filtering, part links, and torque tools…