14/08/2026
What you have in this video is a Cam Shaft Assembly Set for KTM 390 - aftermarket / OEM-compatible.
What it is:
• Box marking: PRODUCT: CAM SHAFT ASSY / KTM 390 / 1 NOS / MAKE IN INDIA - brand RR. Handwritten KTM 390 Cam SHAFT • Inside: 2 pieces - Intake + Exhaust camshaft with timing gear / sprocket pre-fitted. KTM 390 engine is DOHC, 4-valve, so it uses 2 separate camshafts. • Left in photo 2 is the intake cam, right one is the exhaust cam - you can see the auto-decompression mechanism on one lobe, that's normal for the exhaust side on 390.
Function:
Camshaft controls valve timing - opens/closes intake (36mm) and exhaust (30mm) valves via rocker arms, driven by timing chain. Lift and timing is what makes the 390's character.
Compatibility:
This set fits:
• KTM Duke 390 (2013-2023) Gen 1 & 2 • KTM RC 390 (2013-2023) • Also same platform: Bajaj Dominar 400 / Husqvarna 401 uses similar cam architecture, but check part numbers - 390 spec is different.
OEM part numbers for reference are Intake: 61136009000, Exhaust: 63536510044
Material & Type:
• Hardened EN steel / chilled cast iron, induction hardened lobes, machined journals • Gear with lightening holes + timing marks. Aftermarket like yours is made in India (Raj Ratna type), not KTM PowerParts boxed original, but is direct fit.
When you need to replace it:
• Ticking noise from head, hard starting, low compression, worn lobe / pitting, cam bearing seizure - very common on 390 if oil level low or oil change delayed.
Installation notes:
• Always replace as a pair, check rocker arms and cam bearings at same time • Valve clearance cold: Intake 0.10-0.15mm, Exhaust 0.15-0.20mm • Needs proper timing - cam gear dot to head mark, torque nut for timing chain sprocket.