PES BSA M20 M21 M33 B31 B32 B33 B34 C10 Chain Case Inspection Cap 27-0209B with o ring 27-209

Please don't confuse these with others, I doubt if you've seen better.

The thread is correct.

With integrated o ring supplied.

Machined in Brass 

Highly recommend to lubricate the threads before fitting

PES BSA M20 M21 M33 B31 B32 B33 B34 C10 Chain Case Inspection Cap 27-0209B with o ring 27-209

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