1.j Norton Gearbox and Clutch Parts

Set of 3 HD/racing type 'square section' clutch springs - these being of 1.820" length, as fitted to many roadgoing Norton clutch's and some racing clutch's (see detail listing for detail). Price is for a Pack of 3

Clutch spring cups to fit standard 1930's/60's Norton (4 plate type) clutch - these cups are 1.450" in length. CNC machined from stainless steel bar. Price is each

Set of 3 racing type 'square section' clutch springs - these being of 1.620" length, this being a length commonly used on the Norton scolloped racing clutch (which used 4 plain plates, rather than the roadgoing clutch which used 5 plain plates) - read detail listing for more information. Price is for a Pack of 3

Clutch spring cups to fit competition M30/Manx Norton (3 plate type) clutch - these cups are 1.250" in length. CNC machined from stainless steel bar. see listing for more detail. Price is each

This is the slotted head/female thread style clutch spring locating bolt, fitted to later AMC style clutch's, fitted from approximately 1957 onwards.  These slotted nuts are CNC manufactured just as original pattern but in stainless steel.  Price is each.

This item is for a Set of 6 clutch rubbers, to fit all standard 3 spring type Norton Clutch's, they fit into the centre clutch spider and provide a cushioned transmission.  These are excellent quality rubbers to the original Norton pattern.  See detail listing for more information and fitting hints.  Price for a set of 6 rubbers. Jan 2022 - New batch now in stock

- High quality bonded friction plates, as fitted to all pre-AMC type Norton clutch's, including all 30's-50's camshaft Norotns - These are genuine Surflex plates, probably the best quality clutch plates for Nortons currently available. - The price shown is for one plate. If you are building a Manx clutch you will need 4 plates, while the standard roadgoing clutch was fitted with 5 plates. 

These friction clutch plates are to fit most Norton clutches from early 1930's through to the late 1950's, with external tabs.  These are a cheaper alternative to the top quality Surflex friction plates we also sell, but offer great value for money, and also look of decent quality.  Price is each 

- Plain clutch plates to fit earlier Norton single clutch's. These plates have inner tongues of 0.290" width - Please check you clutch before ordering, as it is not always obvious which type of clutch plate is fitted.

These clutch plates, although of the same fitment as the earlier Norton type plain clutch plates (item 0255) are actually of the type sometimes fitted to original Manx Norton models. As you can see - they have slots in them to aid grip and help prevent warping. The pattern is replicated exactly from an original Manx Norton clutch plate.  Price is each

- These clutch plates, although of the same fitment as the earlier type plain clutch plates (item 0255) are actually of the type sometimes fitted to original Manx Norton models. As you can see - they have slots in them to aid grip and help prevent warping.  These are the thicker 'HD' type - see listing for more detail.  Price is Each

- Plain clutch plates to fit later Norton single clutch's (normally fitted from mid 1950's onwards). These plates have inner tongues of 0.387" width - Please check you clutch before ordering, as it is not always obvious which type of clutch plate is fitted

These are the rollers that fit in the cage at the rear of the inner clutch body - there are 15 rollers fitted but we include a spare in case you drop one!, so 15+1=16 rollers.

Distinctive large hexagon nut that retains gearbox rear sprocket to the large sleeve gear, using Left Hand thread.  Price is Each

This lockring is used on all Norton gearbox's to stop the sprocket nut coming loose and is essential. This type is to fit the recessed gearbox sprockets normally fitted to Norton upright gearboxs and laydown gearboxs to the mid 1950's.  See listing for more detail. Price is Each

This lockring is used on all Norton gearbox's to stop the sprocket nut coming loose and is essential. This type is flat, and is best suited to the later Norton/AMC sprockets which were not deeply recessed.  See listing for more detail.  Price is each 

This is a faithful reproduction of the Clutch Worm Lever Arm and the special 'reduced head' bolt that is fitted to all Norton upright gearbox's from early 1930's to 1950.  Both the arm and the special reduced head bolt are faithful copies of the original Norton items - but in stainless steel. Pricer is for arm and bolt

This is the distinctive bolt that was fitted to both Norton gearbox clutch pull arms and exhaust lifter arms - which has a reduced hex head and convex base - often gets chewed on original arms.  CNC manufactured in stainless steel.  Price is Each

Nice reproduction chromed gear lever, as fitted to road going Inter's as well as OHV\SV models with Upright gearbox's. I was looking at an original one the other day and there was virtually no difference. Comes supplied with tightening bolt. Currently Out Of Stock.

Rigid style (i.e. non folding) to fit Norton 1930's - 1950's gearboxs (see description for more information on availability) 

This is the main gasket that fits between the gearbox shell and gearbox covers on upright Norton gearbox's. It fits all 4 speed upright types from early 1930's, through to the last one fitted in 1952 (ish). We used to get so many requests for this gasket that we have had the patterns made and manufactured for us by a specialist UK gasket manufacturer.  Price is each

This is the gasket that fits between the main gearbox casting and inner cover casting fitted to the Norton Laydown style gearbox's that were introduced on all Norton models from 1951 (all singles, twins and Featherbed DOHC Manx Models) and were used until the introduction of the AMC type gearbox in 1957. Made in nice oil resistent gasket material. 

This is the gasket that fits between the inner and outer gearbox castings fitted to the Norton Laydown style gearbox's that were introduced on all Norton models from 1951 (all singles, twins and Featherbed DOHC Manx Models) and were used until the introduction of the AMC type gearbox in 1957. Made in nice oil resistent gasket material. 

This is the gasket that fits over the small circular inspection covers fitted to the AMC style gearbox's that were introduced on all Norton models from 1957 onwards. Made in nice oil resistent gasket material

This is the gasket that fits between the outer and inner gearbox covers fitted to the AMC style gearbox's that were introduced on all Norton models from 1957 onwards. Made in nice oil resistent gasket material - fits all Norton models from 1957 onwards to mid '60's

This is the gasket that fits between the main gearbox casting and inner cover casting fitted to the AMC style gearbox's that were introduced on all Norton models from 1957 onwards. Made in nice oil resistent gasket material

This is the distinctive large diameter, fine thread nut that fits centrally to retain the Norton Oilbath Chaincase outer cover.  We CNC manufacture these in stainless steel, so as well as looking pretty - they will not rust.  (Note we also sell the special lipped washer that fits behine this nut - see Item 0380). Price is Each.

This distinctive heavyweight pressed steel washer retains the Norton pressed steel outer chaincase centrally, in conjunction with the central securing nut (A2/495). Our version is copied from an original Norton pattern - but is made in Stainless Steel - so looks nice and does not rust.  Price is Each.

This item is the rubber seal that fits around the circumference of the Norton inner chaincase/Oilbath, and provides an oil seal to the Norton type pressed steel oil bath. Fits all models using oilbath

Similar to item 0358, this is the seal that fits around the inner timing case to seal the oil in Norton pressed steel oilbath chaincases. Slightly less wide than the other type we sell, it is intended for WD 16H models).  See listing for more detail