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We will be closing for Two week in Mid May Our last trading day will be Friday 8th May 2026.
Any orders placed after this date will be processed when we reopen on Monday, 25th May.


Here you have a Pair (Two) BSA Engine plate distance collars made from solid stainless steel, produced as a direct replacement for the original. 

Original Part number: 42-4071



Approximate Dimensions:
Length - 1/2" / 12.7mm
OD - 5/8" / 15.875mm
ID - 3/8" + Clearance / 10mm


This part will fit the following models BSA pre-unit Swing arm models including:
A7, A10, B31, B33 And Goldstar
This part may fit other models but please check your part number.

Please note this part is supplied in a semi-polished finish. Each part have a good surface finish before then spending at least 3 hours in our vibratory polisher machine.


This item is made using CNC manufacturing in England by with high-quality stainless steel.

42-4071 - Engine plate distance collars

  • £6.00

  • Ex Tax: £5.00

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