2021 Dacia Duster Bolt Sizes & Torque Specs

Free OEM-referenced torque and bolt specs for the 2021 Dacia Duster.

This page is the OEM-referenced fastener summary for the 2021 Dacia Duster. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.

For the 2021 Dacia Duster, fasteners follow metric standards typical of late-model Dacia engineering. Always confirm spec against the factory service manual before tightening safety-critical fasteners (suspension, brake, steering, head bolts).

Common fastener categories on the 2021 Dacia Duster

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2021 late-model work: Modern vehicles increasingly use aluminum body and suspension components. Aluminum fastener torque is typically 60-70% of equivalent steel torque, and aluminum threads strip easily. Use a calibrated torque wrench and apply anti-seize on any steel fastener threading into aluminum.

Tools you will need

Metric socket set (8mm-22mm), 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
Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly

Frequently asked questions

What is the lug nut torque on a 2021 Dacia Duster?

Manufacturer-specified torque values for the 2021 Dacia Duster are in the factory service manual or owner's handbook. WhatSizeBolt sources values from manufacturer literature and verifies against community data — if we do not have this exact year listed, check the Dacia brand page for the closest model year.

What socket size do I need for the 2021 Dacia Duster lug nuts?

Most modern Dacia vehicles use a 19mm or 21mm socket. Older Dacia models from before 2000 may use a 13/16" SAE socket on certain trims. Confirm against the actual lug before purchasing aftermarket wheels.

Are the 2021 Dacia Duster fasteners metric or SAE?

Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.

Other Dacia Duster years

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

→ 2021 Dacia Duster suspension & steering torque specs (control arm, ball joint, tie rod)

All 14 2021 Dacia Duster fastener specs

Per-bolt torque, wrench size, and thread spec for the 2021 Dacia Duster, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Drivetrain — 2021 Dacia Duster

Drivetrain and driveline fasteners for the 2021 Dacia Duster — axle, transmission, and differential plugs. At the drivetrain, the transmission drain plug torques to 40 Nm (29 ft-lbs) (17mm drive, M14 x 1.5 thread).

Engine - Oil System — 2021 Dacia Duster

Engine - Oil System fasteners on the 2021 Dacia Duster. For the engine - oil system, plan for a 15mm tool on a M14 x 1.5 stud; final torque is 30 Nm (22 ft-lbs) (oil drain plug). Oil filter tightens to 20 Nm (15 ft-lbs), takes a N/A driver, runs on M20 x 1.5 threads, located at the engine - oil system.

Brake System — 2021 Dacia Duster

Brake System fasteners on the 2021 Dacia Duster. Brake caliper slide pins tightens to 30 Nm (22 ft-lbs), takes a 13mm driver, runs on M10 x 1.5 threads, located at the brake system. The brake caliper bolts uses a 15mm drive on a M12 x 1.25 thread, torqued to 90 Nm (66 ft-lbs) at the brake system.

Engine - Valve Train — 2021 Dacia Duster

Engine - Valve Train fasteners on the 2021 Dacia Duster. The valve cover bolts uses a 10mm drive on a M8 x 1.25 thread, torqued to 10 Nm (7 ft-lbs) at the engine - valve train.

Suspension - Front — 2021 Dacia Duster

Suspension - Front fasteners on the 2021 Dacia Duster. At the suspension - front, the shock absorber lower bolt torques to 100 Nm (74 ft-lbs) (18mm drive, M14 x 1.5 thread). For the suspension - front, plan for a 18mm tool on a M14 x 1.5 stud; final torque is 50 Nm (37 ft-lbs) (ball joint pinch bolt). Front control arm bolts tightens to 105 Nm (77 ft-lbs), takes a 16mm driver, runs on M12 x 1.5 threads, located at the suspension - front.

Suspension - Rear — 2021 Dacia Duster

Suspension - Rear fasteners on the 2021 Dacia Duster. For the suspension - rear, plan for a 19mm tool on a M16 x 1.5 stud; final torque is 110 Nm (81 ft-lbs) (rear axle beam bolts).

Engine - Cylinder Head — 2021 Dacia Duster

Engine - Cylinder Head fasteners on the 2021 Dacia Duster. Cylinder head bolts tightens to 25 Nm + 100° + 100°, takes a 12mm driver, runs on M10 x 1.5 threads, located at the engine - cylinder head.

Wheel Hardware — 2021 Dacia Duster

Wheel Hardware fasteners on the 2021 Dacia Duster. The wheel nuts uses a 21mm drive on a M12 x 1.5 thread, torqued to 105 Nm (77 ft-lbs) at the wheel hardware.

Engine - Ignition — 2021 Dacia Duster

Engine - Ignition fasteners on the 2021 Dacia Duster. At the engine - ignition, the ignition coil bolts torques to 8 Nm (6 ft-lbs) (8mm drive, M6 x 1.0 thread). For the engine - ignition, plan for a 16mm tool on a M14 x 1.25 stud; final torque is 25 Nm (18 ft-lbs) (spark plugs).

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 use the 2021 Dacia Duster numbers above.

Loading the interactive 2021 Dacia Duster fastener lookup with per-bolt filtering, part links, and torque tools…