Available for special order only – Please call or email us for current availability, pricing and estimated delivery options.Â
Call 720-570-7884, Email orders@thebonnevilleshop.com
This is the kit we’ve all been waiting for! For a limited time and with very limited quantities we are pleased to offer these brand new, late version, Triumph 5-speed gearbox / transmission assemblies. Yes, we said brand new. We recently negotiated a great deal on these. No more trying to make worn parts function or putting up with chipped / worn teeth and dogs! For those of you with the appropriate skill set you’ll know that this assembly can be retro-fitted to both unit 650 engines and pre-unit 500 & 650 alike. Will also fit T150, T150V, A75, A75V, X75 triples but will need the 5-speed mainshaft for triples, PN# 57-4370.
Attention! These units must be installed by a knowledgeable, skilled technician!
Includes the following part numbers:
Mainshaft and gears
- 57-4396
- 57-4909
- 57-7077
- 57-4779
- 57-4376
- 57-4377
- 57-4653
Layshaft and gears
- 57-4900
- 57-4647
- 57-4657
- 57-4654
- 57-4661
Selectors and shaft
- 57-4364
- 57-4366
- 57-4660
- 57-3989
- 57-4889
Gearchange plungers
- 57-4403 x 2
For gearchange quadrant click here.
For right shift gear shift quadrants click here.
For left shift gear shift quadrants click here.
For gearchange index plunger springs click here.
LF Harris motorcycle spares are produced to the highest quality standards possible utilizing original Triumph tooling, dies, factory blueprints & materials combined with modern manufacturing equipment, tolerances & techniques.
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.
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