Original Piaggio stud bolt (tie rod) for fixing the cylinder and cylinder head to the engine housing of all Vespa engines from 160ccm displacement. Can also be used in the engines of the Lambretta series 1-3 models. The thread of the Piaggio cylinder studs is rolled, not cut. Therefore they have a very high tensile strength and can handle much more tightening torque than the specified 22-24Nm for cylinder mounting.


Another special feature are the different core diameters of the threads. The side that is screwed into the engine housing has a slightly larger core diameter than the cylinder head side. Due to this oversize, the bolts can be screwed into the housing relatively tightly, but they always remain in the housing and do not rotate even when the cylinder head nuts are loosened.


The side that should face the cylinder head is marked with a narrow turned in circular groove. Older bolts have a grain knock on the upper side of the bolt.


Some Piaggio bolts already have a factory-applied threadlocker (usually blue). This marks the side to be screwed into the motor housing.


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This is how we ensure, that reviews come from real consumers.
Anonym  04/14/2016

das Produkt ist schön und kommt sehr schnell.

Anonym  01/10/2018

Super! A1

Anonym  10/14/2016

Quality!

Kai W. from Weinstadt 06/22/2025
Stud bolt
Thread 1
M8x1,25
Thread 2
M8x1,25
Length thread 1
22,0mm
Length thread 2
22,0m
Shank length
118,0mm
Total length
162,0mm
Shank diameter
7,3mm
Quantity included in delivery
1
one thread as screw-in side
ja
Material
Stahl
 
OEM numbers (for comparison purposes only)
Innocenti:
19010013, 19210013
Piaggio:
016058, 16058, S.553
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