1.j Norton Gearbox and Clutch Parts

1.j Norton Gearbox and Clutch Parts

Parts to fit those gearbox/clutch's fitted to all single cylinder Norton models - particularly upright type gearbox


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Norton 19T Gearbox Sprocket - 1930's-mid 1950's 'Deep Recess' Type (all SOHC/OHV/SV) - Each

Product no.: 0341 A2\368

Norton 19 tooth gearbox sprocket - of the 'deep recess' type fitted to all models using Norton upright gearbox's, and some later Laydown Norton Gearboxs up to approximately the mid 1950's.  These are good quality UK manufactured sprockets.  See detail listing for more information).  Price is Each.  Update November 2023:  New batch now in stock

£52.00 *
In stock

Norton Laydown Gearbox 19T Sprocket - Mid 1950's onwards 'Shallow Recess' Type - Each

Product no.: 1206 E12/368

Norton 19 tooth gearbox sprocket - of the 'shallow recess' type fitted to Norton models with Laydown Norton type gearbox sometime in the mid 1950's.  Similar to our item 0341 - but with shallower profile and less deep spline collar than earlier type.  These are good quality UK manufactured sprockets.  See detail listing for more information).  Price is Each.  

£52.00 *
In stock

Rear Hub/Sprocket for Rigid Frame Models (Cotton Reel Hub Type) - Each

Product no.: 0296 A2/463

This is the rear chain sprocket/brake hub that was fitted to the 'Cotton Reel' type Norton hub - i.e. to all SOHC/OHV/SV Nortons with rigid frames and swinging arm frames from the 1930's - late 1950's.  These are excellent quality UK manufactured sprocket/hubs.  Price is Each

£175.00 *
In stock

Six Hole 'Finned Type' Rear Hub/Sprocket for all Plunger Frame Models - Each

Product no.: 0296b B4/463

This is a very good, English made, example of the rear sprocket/hub that was fitted to all SOHC and OHV Nortons with Plunger frames, identifiable from rigid framed models as having a different mounting and fins around the drum

£180.00 *
In stock

Gearbox Bearing - Mainshaft Main Bearing : All Models - SOHC/OHV/SV

Product no.: 0029 A2/316

- Large shielded single row ball bearing. This is the main bearing fitted to all upright and laydown Norton gearbox's from the early 1930's through to the late 1950's, from a good quality manufacturer. Price is Each.  Feb 2022 Update: Back in stock, but see listing for future availability

£89.00 *
In stock

Gearbox Bearing: Mainshaft - All models (and Layshaft Mod 30/40M/Manx)

Product no.: 0030 A2/321

- Single row ball bearing. Fitted to all upright and Norton laydown gearbox's mainshafts and Manx model layshafts on the right hand (timing) side.  High quality RHP brand

£58.00 *
In stock

Norton Gearbox - Left Hand Layshaft Ball Bearing

Product no.: 0031 B2/322

Single Ball Bearing to fit all Norton upgright and pre-AMC laydown gearbox drive side layshaft - high quality manufacturer

£24.00 *
In stock

Norton Upright and Laydown (Pre-AMC) Gearbox - Mainshaft Thrust Washer (all models)

Product no.: 0641 A2/328

Norton Upright Gearbox and Pre-AMC (i.e. laydown) gearbox - bronze mainshaft Thrust Washer 

£24.00 *
In stock

Norton Gearbox - Sleevegear/Main Bearing Oil Retaining Shim - Price Each

Product no.: 0853 A2/317

This is the large oil retaining shim that is fitted between the mainshaft sleevegear and main gearbox bearing on all upright and laydown Norton gearboxs from the 1930's to late 1950's (i.e. pre-AMC) - as per original fitment.  Price Is Each

£4.70 *
In stock

Norton Gearbox - Oil Retaining Shim: Outer Bearing (Pre-War) or Reduced OD A2/417 - Price Each

Product no.: 0854 9666

This is the oil retaining shim that was shown as fitted between the main gearbox bearing and gearbox shell on pre-war Norton spare parts list - but can also be used as an alternative to the large inner bearing shim - see detail listing for more information. Price Is Each

£4.50 *
In stock

1934-57 Norton Upright and Laydown Gearbox - Cam Plate And Quadrant Spindle Bush's (Pair)

Product no.: 1051 A2/344

This listing is for a pair of the plain Phospher Bronze bush's of the type that was fitted to the gearbox shell of both the Norton Upright type and later Laydown type Norton gearbox's, and allowed smooth rotation of both the gear selector camplate and the quadrant spindle operating the camplate.  Originals tend to wear badly and adversly affect gear changing.  These are CNC manufactured and have been manufactured so they should not require further honing once pressed in - see detail listing for more information.   Price is per pair (i.e for one gearbox)

 

£26.30 *
Not in stock

1932-34 (Approx) 4 Speed Sturmey Archer Gearbox - Cam Plate And Quadrant Spindle Bush's (Pair)

Product no.: 1053 A2/344SA

This listing is for a pair of the plain Phospher Bronze bush's of similar dimensions to the later Norton upright type gearbox shell, but of the shorter length that the final Sturmey Archer type gearbox design used - but please read detail listing before purchasing for more information.  Price is for a pair of bushes (i.e. to fit one gearbox shell) 

 

£26.30 *
In stock

1934-51 Norton Upright Gearbox - Selector Mechanism Plates - Front and Rear Bush's (Pair)

Product no.: 1059 A2/409+423B

This listing is for a pair of the plain Phospher Bronze bush's to replace the original steel bushes that were pressed into the front and rear selector mechanism plates on the positive stop mechanism on all Norton upright gearboxs between 1934 - 1950.  Original bushes are often badly worn - recognisable by the gearlever flopping around when you move it - and is a major factor leading to imprecise and vague gearchange.  Price is for a pair of bearings (one front, one rear).  See detail listing for more information before ordering.   

£20.00 *
Not in stock

1951-57 Norton Laydown Gearbox - Selector Mechanism Plates - Front and Rear Bush's (Pair)

Product no.: 1060 D12/1010+11

This listing is a placeholder for the bushes of the type fitted to the positive stop meachanism of Laydown Norton gearboxs, of the type fitted to all Norton models from 1951 to 57.  See detail listing for more information 

£0.00 *

1933-50 Upright Gearbox: 'Works' Type Alloy Racing Gearlever Assembly for M30/Inter/SOHC Manx Models

Product no.: 0999 A11M/406W

This listing is for an alloy racing gearlever, complete with wasted gearbox bolt and locknut (to take lockwire) and correct SOHC Manx style gearlever rubber, to fit all Norton upright gearbox type splines - and has been faithfully reproduced from a genuine original SOHC Manx gearlever.  See detail listing for more information.  

Update July 2023: We will be looking to make another batch of these in Autumn 2023 - please email to reserve one now

£89.00 *
Not in stock

Norton 1957 Onwards Singles and Twins (AMC Gearbox Type) Gear Lever and Stainless Bolt - Each

Product no.: 0421 040004

Nice reproduction of the 1957 onwards gearlever (as fitted to AMC type Norton gearbox's - see picture), fitted to all Norton single models from 1957 onwards - i.e. Norton ES2, Model 50 and Model 19, as well as Dominator Twins.  Our gearlevers also come with a  stainless steel bolt, washers and nuts.  See listing for more information. Price is Each

 

£37.00 *
In stock

Gearchange Rubber - As fitted to SOHC Manx Norton's Postwar

Product no.: 0943 A11M\407

Period gearchange rubber, similar in design to the one shown in the 1948 Norton Spare Parts Catalog as fitted to the Plunger Manx gearchange lever.

£3.80 *
In stock
can be shipped within 30 days

Gearchange Rubber - Late (alternative) Type

Product no.: 0617 A11/407

Good quality gearchange rubber - of type used in the 1950's. 

£3.80 *
In stock

Norton International Folding Kick Starter Lever

Product no.: 0299 A2/360F

High quality folding kickstarter to fit Norton International and other Nortons fitted with either upright or laydown gearbox from early 1930's to late 1950's

£185.00 *
In stock

Norton Upright and Laydown Gearbox Clutch Cable Adjuster/Locknut - Nickel Plated Brass (Pair)

Product no.: 0902 A2/247

This Item listing is for the very distinctive conical shaped, knurled, gearbox clutch cable adjustment bolt and locknut - both CNC manufactured as faithful replica of the original Norton Item.  Extremely useful for adjusting your cluth lever while sat on the bike, and normally the knurl has long since disappeared on original bolts.  Manufactured in brass then nickel plateed as per the original.  See listing detail for more information.  Price is for bolt and matching locknut.

£21.00 *
In stock

Norton Upright/Laydown Gearbox: Clutch Cable Adjuster/Locknut - Lightened Racing Type (2 Parts)

Product no.: 0903 A2/247M

This Item listing is for a 'lightened' version of the very distinctive conical shaped, knurled, gearbox clutch cable adjustment bolt and locknut. Similar to the normal road version - this version also has 6 holes bored radially around the conical part to reduce weight.  Probably not original Norton practice, but as the original adjuster was quite heavy - a likely mod that will add 'bling' to your M30/M40 or Manx, while still allowing the benefits of this useful adjuster.  See listing detail for more information.  Price is for bolt and matching locknut.

£24.20 *
Not in stock

Chromed Dolls Head Gearbox - Gear Indicator

Product no.: 0273B A2/404C

This distinctively shaped pointer was used on all dolls-head and upright gearbox's to help indicate what gear you were in. An original Norton item was used as the pattern, these are lasercut, pressed to the oriignal form - and this version is polished and chromed.  Price is each

£14.80 *
In stock

Dolls Head Gearbox - Gear Indicator: Dull Nickel Finished (Each)

Product no.: 1079 A2/404DN

This distinctively shaped item was used on all dolls-head and upright gearbox's to help indicate what gear you were in.  An original Norton item was used as the pattern, and we lasercut these and then press to the correct profile.  This version is in satin nickel - which in time will dull off to represent the original 'Dull Nickel' finish. Price is Each

£13.80 *
In stock

Norton Upright Gearbox - Gearlever Lubricating Bolt (SS) and Pan Washer (Pair)

Product no.: 0671 A2_405

This is the distinctive bolt fitted to the gear lever spline on all Norton upright gearbox's.  This bolt was drilled through the centre to allow greasing of the seperate positive stop mechanism.  CNC manufactured in stainless, comes complete with washer.  Back In Stock - Oct 2023

£8.70 *
In stock

1933-50 Upright Gearbox Oil Filler Plug - Road and Racing Types (Stainless Steel)

Product no.: 0998 A11/315&315M

This listing is for the distinctive coarse thread, curved head filler plug fitted to Norton upright gearbox's on the front cover from the early 1930's to 1950.  These are CNC stainless steel, with polished head and we offer 3 types - Road models, Inter and Manx lockwired type and wasted racing type.  See listing for details.  Price is each

from £7.40 *
In stock
can be shipped within 60 days

Norton Engine, Gearbox, Oil Tank Sump Plugs: All Types - Pre and Post War and Racing Type (Each)

Product no.: 1101 SumpPlugs

This is a 'Variable' Listing, showing various types of Norton sump plugs - as were fitted to most Norton models from the 1920's through to the 1950's, both engine and gearbox, and also some additional 'Racing' type, either drilled for Lockwire and even a couple 'Wasted' for weight saving.  All are modelled on original Norton sump plugs - with all major dimensions replicated exactly.  All 1/4"  BSP are CNC made in brass, satin nickel plated.  1/8" BSP are in stainless steel.  Price is Each, all supplied with washers.  See detail listing for full range breakdown and where they are each most commonly used

from £0.95 *
In stock

Norton Gearbox Endplate Nuts (Stainless Steel) - Pre-War Upright (and later Laydown) Gearbox

Product no.: 0099 A11M/307

- These are the distinctive Norton gearbox nuts as fitted to the endplate of all upright Pre-War Norton models and pre-Featherbed Manx models. Made in Stainless Steel and very pretty.  October 2023: New batch back in stock

£3.95 *
In stock

Norton Upright Gearbox Cover Stud (Stainless Steel) - All Models

Product no.: 0100 a2/307
This is the gearbox cover stud that fits into the shell of all upright gearbox's. An original was used as a pattern, these are identical, other than being manufactured in stainless steel. 7 are fitted per gearbox. Note: This item is slightly longer than the vertical bevel stud, it is 5/16" BSC both ends and can also be used as the Inlet Stud on cylinder heads - but check the thread on your head first, sometimes these are BSW.
£2.80 *
In stock

'Reduced Width' Gearbox and SOHC Vertical Bevel - Spring Washers (Stainless Steel) - 5/16" (per 10)

Product no.: 0102 SW002

These 'Reduced Width' stainless steel spring washers are of the correct profile as used on all Upright and Laydown Norton gearbox covers and also the SOHC Vertical Bevel Housing Studs.  These are in stainless steel and of good UK quality, price is for a pack of 10

£2.80 *
In stock

Norton Upright Gearbox Top Cover Screws/Washers (Bar Turned SS) - Pair

Product no.: 0113 A11M/822

This Item listing is for a pair (i.e. two) of CNC Bar turned stainless steel cheesehead screws and red fibre washers to fit the oval shaped positive stop inspection cover on Norton upright pre-War gearbox's (both road and race gearbox's). These cheesehead screws are copied from an original gearbox screw, having a wider head than standard modern cheesehead screws. They come with correct red fibre washers.  Price is per pair

£7.00 *
In stock
*
Recommended Retail Price, plus delivery
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