Exhaust Valve Rocker Arm 139QMA-A for BT49QT-20BB
RKA013
£7.99
Exhaust Valve Rocker Arm 139QMA-A for BT49QT-20BB

£7.99

Availability: Low Stock
Code: RKA013 PLU: 13470 EAN: 5057645139324

Order before 4pm for same day dispatch

Description

The rocker arm is a pivotal component in a motorcycle’s engine valvetrain that transfers the motion from the camshaft to the engine's valves. It is typically a lever-like mechanism that pivots on a shaft or bearing, pushing the valve open and then allowing it to close as the camshaft rotates. By converting the rotational motion of the camshaft into the linear motion needed to operate the valves, the rocker arm plays a critical role in regulating the engine’s air-fuel intake and exhaust.

Compatibility
Manufacturer Model
Baotian BT49QT-20B2
BT49QT-20BB
Pulse Force 4T [BT49QT-20BB]
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