Shop Wassell motorcycle parts for classic Triumph, Norton and BSA motorcycles at The Bonneville Shop. This collection includes Wassell Evolution carburetors, VAPE electronic ignition kits, carburetor jets, seats, pushrod tubes, primary covers and other replacement components.
This page covers products associated with Wassell Limited at Total Bike Bits, the trade supplier based in Lincoln, England. It is separate from TJ Wassell Engineering, whose retail division is Old Boys Toys. Browse the products below and check each listing for its application, dimensions, specifications and included components before ordering.
Triumph 750 T140 TR7 Chrome Pushrod Tube 1973-78 PN# 71-3329 W
$25.38 – $45.52Price range: $25.38 through $45.52
Triumph Norton BSA Wassell Needle Jet(s) Amal-Type PN# 622/122 W
$9.96 – $15.07Price range: $9.96 through $15.07
Norton BSA Triumph etc. Concentric Choke Blanking Plug(s) PN# 4/137 A 4/137
$8.53 – $12.13Price range: $8.53 through $12.13
Triumph Primary Level Plug(s) M6-1.0 x 12mm for Wassell Primary Covers PN# TBS-DS57-M
$5.55 – $8.71Price range: $5.55 through $8.71
Triumph Norton BSA Wassell Evolution Pilot Jet PN# 622/502 W
$16.47 – $26.67Price range: $16.47 through $26.67
Triumph 650 T120 TR6 TR6C Chrome Pushrod Tube(s) 1957-65 Wassell PN# 70-3646 W
$52.33 – $101.40Price range: $52.33 through $101.40
Triumph Norton BSA Wassell Main Carburetor Carb Jet(s) Amal-Type PN# 376/100 W
$9.96 – $14.73Price range: $9.96 through $14.73
Triumph T140 Fork Oil Seal(s) Leakproof Type 1978-1983 PN# 97-7079 W
$10.16 – $15.07Price range: $10.16 through $15.07
Table of Contents
About Wassell Limited and Total Bike Bits
Total Bike Bits is the website of Wassell Limited, a Lincoln-based supplier serving the motorcycle trade. The company supplies classic British motorcycle parts under its own brand and other names represented in its catalogue. The Bonneville Shop offers selected products from this range to motorcycle owners and restorers.
Our Wassell collection includes carburetors, electronic ignition kits, seating, carburetor service components and selected engine and cycle parts. Product applications vary, so use the individual description—not the supplier name alone—to determine compatibility.thebonnevilleshop
For a broader selection, explore our vintage Triumph parts, Norton Commando parts and BSA motorcycle parts.
Wassell and TJ Wassell Engineering Are Separate Businesses
Wassell Limited, represented at Total Bike Bits, should not be confused with TJ Wassell Engineering. Old Boys Toys identifies itself as the retail division of TJ Wassell Engineering Ltd and describes its own range of UK-made and finished classic motorcycle parts.totalbikebits+1
For that separate range, visit our TJ Wassell brand collection.
When shopping, distinguish the supplier, product brand and actual manufacturer. A familiar historical name on a current replacement part does not, by itself, establish that the part was produced by the original historical factory or engineering team.
Wassell Evolution Carburetors
The Wassell collection includes Evolution carburetors in several bore sizes and configurations. Listings include individual left- and right-hand carburetors, matched pairs and a 32mm pair described for Norton 850 Commando applications.
Explore:
- Wassell Evolution 28mm left- and right-hand carburetor set.
- Wassell Evolution 28mm left-hand carburetor.
- Wassell Evolution 28mm right-hand carburetor.
- Wassell Evolution 30mm carburetor pair.
- Wassell Evolution 30mm left-hand carburetor.
- Wassell Evolution 30mm right-hand carburetor.
- Norton 850 Commando-specification Wassell Evolution 32mm pair.
Some listings use “Amal Premier-type” to describe the product. These are identified as Wassell Evolution carburetors; that wording should not be read as identifying them as Amal-branded carburetors.
Browse our Wassell carburetor collection or complete carburetors for additional options. Related components are available through our Triumph carburetor and fuel, Norton carburetor and fuel and BSA carburetor and fuel categories.
Carburetor Jets and Service Components
Selected service parts in this collection include Wassell pilot jets, main jets, needle jets and throttle slides. Each listing identifies the component and available specification or variant.
Explore:
- Wassell Evolution pilot jets.
- Wassell Amal-type main jets.
- Wassell Amal-type needle jets.
- Wassell No. 3.5 anodized throttle slide.
Select service components by the carburetor and specification described in the listing. A shared reference or similar appearance should not replace checking the stated compatibility.
Wassell VAPE Electronic Ignition Kits
The collection includes several Wassell VAPE ignition listings, including a kit described for 12V systems, an MK2/MKII kit described for 6V and 12V applications, and packages that include coils for singles or twins. These are distinct product configurations.
Browse:
- Wassell VAPE MK2/MKII ignition kit — TBS-06-1476.
- Wassell VAPE 12V ignition kit — TBS-06-1495.
- Wassell VAPE ignition package with a coil for listed single-cylinder applications.
- Wassell VAPE ignition package with coils for listed twin-cylinder applications.
Read the selected kit’s voltage, application, installation information and supplied contents. Do not assume that all versions use the same wiring or coil arrangement.
For related products, visit our electronic ignition collection, Triumph electrical parts, Norton electrical parts and BSA electrical parts.
Seats for Classic Motorcycles and Custom Projects
The Wassell collection includes model-specific dual seats and seats described for trials, scrambler and custom applications. It also contains Lycett-style solo and pillion seating.
Examples include:
- BSA A50/A65 black dual seat.
- BSA A50/A65 dual seat with rear hump.
- Bates-type trials and scrambler seat with alloy base.
- Universal trials and scrambler seat.
- Small Lycett-style saddle.
- Lycett-type solo seat.
- Lycett-style sprung pillion seat.
“Universal” describes the intended product category, not a guarantee of direct fitment to every motorcycle. Compare the dimensions and mounting details in the description.
For more options, browse Triumph seats, Norton seats and BSA seats.
Engine Covers, Pushrod Tubes and Rubber Components
Other products in the collection include primary covers, pushrod tubes, knee grips, fork gaiters and fork seals for specific applications.
Explore:
- Triumph twin rotor primary covers.
- M6 primary-level plugs specified for Wassell primary covers.
- Triumph T140/TR7 chrome pushrod tubes — 71-3329 W.
- Triumph 650 chrome pushrod tubes — 70-3646 W.
- Triumph pre-unit knee-grip set — 82-1605/6 W.
- Triumph/BSA heavy-duty fork gaiters — 97-2513 H.
- Triumph T140 fork seals — 97-7079 W.
Compare the selected variant, year range and thread or dimensional specification. Replacement-cover fittings should be selected according to the cover’s stated requirements.
Historical Brand Names and Current Replacement Parts
Wassell’s published company history describes acquiring the Hepolite brand, trademark and goodwill in 2011. It describes a Lucas classic-motorcycle licence acquired in 2014 and an extended Lucas Classic and Girling licensing arrangement in 2019. These are trademark and licensing relationships; they should not be treated as proof that current products were manufactured by the original historical factories.
Explore our separate collections for Lucas electrical parts, Hepolite engine parts and Girling brakes and shocks. Keep the product’s current brand, specifications and documented origin distinct from the history associated with the name.
For supplier information, see Wassell Limited at Total Bike Bits and its trade contact page. Wassell states that it supplies the motorcycle trade rather than handling public enquiries. Customers purchasing from The Bonneville Shop should contact us about their orders and product selection.
Browse our British motorcycle parts brands directory for other suppliers and product ranges.
Wassell FAQs
What is Wassell Limited?
Wassell Limited is a supplier of classic British motorcycle parts based in Lincoln, England. Its website, Total Bike Bits, serves the motorcycle trade and represents both its own-brand products and other brands in its catalogue.
Is Wassell Limited the same company as TJ Wassell Engineering?
No. This collection concerns Wassell Limited at Total Bike Bits. TJ Wassell Engineering is a separate business whose retail division identifies itself as Old Boys Toys. For its products, visit our TJ Wassell collection.
Does a historical brand name mean a part came from the original factory?
Not by itself. A current product may carry an acquired or licensed historical name. Wassell’s published history describes both brand acquisitions and licensing arrangements, so the current product’s manufacturer and origin should be established separately.
What Wassell products does The Bonneville Shop offer?
The collection includes Evolution carburetors, VAPE ignition kits, carburetor service parts, seats, pushrod tubes, primary covers, fork gaiters and other replacement components. Availability and applications vary by listing.
Are Wassell Evolution carburetors Amal-branded carburetors?
The products in this collection are identified as Wassell Evolution carburetors. Some listings describe them as “Amal Premier-type,” but that does not identify them as Amal-branded products.
Which Evolution carburetor sizes are listed?
The collection includes 28mm and 30mm carburetors in individual or paired configurations, plus a 32mm pair listed for Norton 850 Commando applications. Check the selected product’s bore size, handedness and specification.
Can I buy left- and right-hand Evolution carburetors separately?
Yes. The collection contains individual left- and right-hand 28mm and 30mm listings, as well as paired sets. Confirm whether your chosen listing supplies one carburetor or a pair.
Are Wassell carburetor jets and slides available?
Yes. Listings include pilot jets, main jets, needle jets and a No. 3.5 throttle slide. Select by the component specification and the compatibility described in the product listing.
Are all Wassell VAPE ignition kits the same?
No. The collection has separate listings for a 12V kit, an MK2/MKII kit described for 6V and 12V applications, and packages with coils for singles or twins. Read the specific kit’s instructions and contents.
Do all ignition kits include coils?
Do not assume that they do. Some listings explicitly include a coil or coils, while other listings are presented separately. Check the supplied contents of the exact product before ordering.
Are the universal seats a direct fit for every motorcycle?
Do not treat “universal” as a direct-fit guarantee. The collection includes seats for trials, scrambler and custom applications alongside model-specific seats. Review the dimensions and mounting information before choosing one.
Are all products in this collection made in Britain?
The supplier’s location does not establish every product’s manufacturing origin. Check each listing for a documented origin claim rather than applying a collection-wide assumption.
Can motorcycle owners purchase directly from Total Bike Bits?
Wassell states that it supplies the motorcycle trade and cannot handle public enquiries. The Bonneville Shop sells selected products from the range to motorcycle owners.
How do I choose the correct Wassell replacement part?
Match the motorcycle application and original reference, then compare the listing’s dimensions, specification, finish, selected variant and included components. For carburetors and ignition kits, pay particular attention to the configuration described rather than relying only on the motorcycle make.

