The Bonneville Shop is your one-stop shop for Triumph Bonneville aftermarket parts. Common maintenance is essential to keep your classic Brit bike up and running including valve adjustments, oil changes, and carb tuning. You should also replace worn items like chains, sprockets, and tires. Whether you’re performing regular maintenance or restoring a barn bike, you can find what you need. Electrical, engine parts, transmission, oil and air, exhaust and cables ship for free to the lower 48. Actually, all parts ship for free to the lower 48 with fast and reliable options for world-wide Triumph riders.
- Rule #1 – Get a Parts Book: The Case for the Parts Catalog as the Most Important Tool in the Cabinet “Without the parts book, sourcing the correct parts for your vintage BSA, Norton, or Triumph motorcycle becomes an adventure, even for the experienced enthusiast.” We’re here to help but starting with part numbers will get you most of the way there.
- Triumph Bonneville Aftermarket Parts for Performance: Options include high-compression pistons and performance exhaust systems.
- Triumph Bonneville Maintenance items: Replacement components like filters, gaskets, and electrical parts are readily accessible.
Triumph Exhaust Clamp Panhead Screw(s) 10-32 TPI PN# 21-2230
Price range: $7.05 through $12.14
- Customization: Triumph Bonneville aftermarket parts including seats, handlebars, and cosmetic accessories allow for personalization
Triumph Norton BSA Universal Clamp on Mirror(s) 8 inch Stem PN# 60-0005 T
Price range: $23.48 through $41.06
Check out our tech article What exactly is a 1978 Triumph Bonneville? T140, T140V, T140E, 1978.5

Triumph and BSA 650 750 Oil In Frame Unsealed Premium Tapered Steering Head Bearing(s) 1971-83 (1) PN# 97-4031 U H4031
Price range: $44.21 through $81.21
Triumph BSA 650 750 Ignition Coil Mounting Grommet(s) 1971-83 PN# 82-9561
Price range: $11.09 through $22.10