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Service bulletin SMT-SB551-14Sept

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10125286
Published by NHTSA2017-12-14
Manufacturer's numberSMT-SB551-14Sept
Manufacturer's date2017-09-14
NHTSA componentENGINE; ENGINE AND ENGINE COOLING

NHTSA's summary

Service bulletin 551 addresses the need to change the torque figure of the fixings securing the coolant tee piece to the lower crankcase.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
TRIUMPH SCRAMBLER2018
TRIUMPH STREET TRIPLE R ABS B12017 (the catalog's model; the bulletin names a series or trim of it)
TRIUMPH STREET TRIPLE S2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
SMT-COM012022-09-26. Service bulletin. Dealer notice reminding of the new California Prop 65 regulation.
SMTCOM052022-07-25. Service bulletin. Dealer notice advising of careful inspection to conduct when replacing the heat exchanger seal.
SMT-TN-1662021-05-10. Service bulletin. Crackshaft position sensor/ignition pickup, front brake hose p-clip, headlight fixings, reed valve cover torque fixing, engine bar plugs, lower yoke wire guide, front fork oil level and volume, motorcycle assembly guide update-backrest bar, rear bevel box parts kit, and pannier frame.
SMT-TN-1632021-05-10. Service bulletin. Mudgaurd alignment, sump, crankcase breather bolts, sump plug sealing washer, seat lock, drivebelt tension, reflector mounting o-rings, water inlet cover bolt and water outlet cover bolt, bleeding the brakes, and front inner wheel, inner tube and valve.
SMT-TB201-20DEC22020-01-21. Service bulletin. Technical Bulletin 200 provides instructions that apply to Steering Lock and Keys, Neutral Position Adaption, Triumph Diagnostic Tool - End of Support for Microsoft Windows 7®, Triumph Diagnostic Tool - Internet Connection and Minimum eEquipment Requirement, Torque Change, Clutch Cable, Camshaft Frame Installation, Immobiliser Antenna Wire Routing.
SMT-TB200-20DEC22020-01-21. Service bulletin. Technical Bulletin 200 provides instructions that apply to Camshaft Cover Tightening Sequence, Replacement Keyless ECM Setup Process, Pin Point Test - ABS Modulator Communication, Cylinder Head Oil Jet, Owners Handbook Correction - Instrument Functionality, Keyless Ignition, Torque Change, Windscreen Fixings, Front Wheel Speed Sensor Routing.
SMT-TB188-27Marc2018-05-21. Service bulletin. Technical Bulletin 188 provides instructions that apply to Triumph Diagnostic Tool Compatibility with Windows Operating Systems, Fog Lights Warning, TFT Instruments - Calibration Update, Exhaust Header Nuts Tightening Sequence, Hugger Fixing, Pinpoint Test - Brake Switches, Alternator Cover Parts Kit, Starter Motor Parts Kit.
SMT-TN176-03May22017-12-14. Service bulletin. Technical News 176 provides instructions that apply to Handlebar End Weight Fixings, Coolant Expansion Tank Cover Fixings, Airbox and Immobiliser Connector Anti-Tamper Foam Pad, Scheduled Maintenance Chart, Rider's Seat Fixing, Triumph Diagnoatic Tool - End of Support for Mictosoft Windows Vista, Temporary Packing Crate, Steering Lock Removal and Installation, Exhaust Clamp and Bolt Assembly, Service Manual Update - Purge Control Valce and Engine Breather Cover, Belly Pan Panel Assembly Fixings.
SMT-Com02-14Sept2017-12-14. Service bulletin. Dealer notice announcing the availability of Service Bulletin 551
SMT-TN175-22Febr2017-11-03. Service bulletin. Technical News 175 provides instructions regarding updates to instrument and engine ECM calibrations.