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Triumph Herald Clutch

The Triumph Herald clutch system evolved throughout production, with early 948 models featuring 6 1/4-inch coil spring clutches before transitioning to diaphragm-type clutches from chassis GA1985E onwards across 1200, 12/50, and 13/60 variants.

Clutch components include covers, plates and release bearings specifically matched to model and chassis number specifications. The hydraulic system operates through master and slave cylinders, sharing specifications with Herald brake hydraulics for simplified servicing procedures. Coil spring clutches require different release bearings from diaphragm types, necessitating careful identification during replacement.

Complete clutch kits simplify replacement by including matched pressure plates, driven plates and bearings engineered for specific Herald applications. The 10-spline input shaft remained consistent across models, connecting to the gearbox and ensuring proper spigot bush alignment for smooth engine-to-transmission power transfer. Regular hydraulic fluid changes prevent internal corrosion and maintain pedal feel across all Herald variants.

Rimmer Bros stocks original specification and upgrade components supporting Herald clutch systems from the earliest 948 production through the final 13/60 models.

Triumph Herald Clutch

Triumph Herald Clutch Components

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Triumph Herald Clutch Hydraulics

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Frequently Asked Questions

When did Heralds change from coil springs to diaphragm clutches?

Herald 1200 models transitioned to diaphragm clutches from chassis number GA1985E, with earlier 948 and initial 1200 models using coil spring clutches requiring different service procedures and release bearings.

Are clutch hydraulics shared with the brake system?

Herald clutch master cylinders share specifications with brake master cylinders on early models, though later diaphragm clutch systems use different slave cylinder specifications, requiring proper identification before ordering replacement components.

How do I identify my Herald's clutch type?

Clutch type identification requires checking the chassis number against factory specifications, with coil spring clutches measuring 6 1/4 inches and diaphragm clutches measuring 6 1/2 inches in diameter.

What causes the heavy clutch pedal feel on Heralds?

Heavy pedal operation typically indicates worn hydraulic seals, contaminated brake fluid or seized clutch fork pivots rather than clutch plate failure, requiring systematic hydraulic system inspection before clutch replacement.