KTM 390 Duke (2013-2017)
Fluid capacities, consumables, drivetrain, tire pressure & wear limits
The KTM 390 Duke (2013-2017) takes 1.7 L of oil with a filter change (1.7 L without).
Fluid Capacities
Oil capacity (with filter)1.7 LOnly refill figure the manual states, for the combined oil + filter change + oil screen cleaning procedure
Oil capacity (without filter)1.7 LManual does not distinguish — it publishes one refill figure covering the combined oil + filter change procedure, which is the only one in the service schedule
Coolant (radiator)1.2 L
Consumables
Engine oil gradeSAE 15W/50 (Motorex Formula 4T, JASO T903 MA2, semi-synthetic)
Coolant typeSilicate-free coolant with corrosion inhibitor for aluminum engines, antifreeze protection to at least -25°C (Motorex Coolant M3.0 or equivalent), premixed use recommended
Oil filter (OEM)Not listed by part number in this service manual
Air filter (OEM)Not listed by part number in this service manual
Spark plug (OEM)BOSCH Super R6 VR5 NE (gap 0.8 mm) — later production BOSCH VR5 NEU (gap 1 mm)
Front brake pads (OEM)Minimum thickness ≥ 1 mm
Rear brake pads (OEM)Minimum thickness ≥ 1 mmInferred identical to the confirmed front value — not independently located in the extracted page range
Drive chain5/8 x 1/4" (520) X-ring
Clutch free play1–3 mmClutch lever play (cable-actuated wet clutch)
Drivetrain
Chain size520
Chain slack5–7 mm
Front sprocket (OEM)15T
Rear sprocket (OEM)45T
Brakes & Tires
Front tire size110/70 R17 M/C 54H TL
Rear tire size150/60 R17 M/C 66H TL
Front tire pressure200 kPaSolo riding. With passenger/fully loaded: same front, rear rises to 220 kPa
Rear tire pressure200 kPaSolo riding. With passenger/fully loaded: 220 kPa
Brake fluid typeDOT 4 / DOT 5.1
Wear Limits
Front brake disc (min)3.6 mm
Rear brake disc (min)3.6 mm
Brake pad — front (min)1 mm
Brake pad — rear (min)1 mmInferred identical to the confirmed front value — not independently located in the extracted page range
Clutch friction plate (min)21.3 mmTotal package thickness of all clutch facing discs combined (manual gives a stack minimum, not a per-plate figure)