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Triumph TR4/4A/5/250 Brake System |
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Brake Calipers Caliper Pistons & Repair Kits TR4 Handbrake TR4A/5/250 Handbrake ©Rimmer Bros Ltd - Registered in England No. 2155394. VAT No. GB 352 8473 40.
Front Brakes
Rear Brakes
Brake Master Cylinder
Brake Servo - TR5/250 only
Brake Pipes & Hoses
Handbrake Cables
Consumables
Early TR4's had different calipers and brake discs to later TR4's due to alternate caliper mountings on the vertical link and slightly larger discs.
TR4 (Early) up to comm no. CT4689 (Wire Wheels), CT4387 (Steel Wheels).
TR4 (Late) from above Nos onwards (January 1962 approx).
The later TR4/4A/5/250 used the same calipers and discs, being common with the early
TR6 (although 2 different caliper seal kits were used).
Please note that the later TR6 had metric calipers and whilst they will fit all but early TR4's (if fitted unknowingly by a previous owner), it should be noted that metric pipes, bolts and different pads are required. (Part nos. 2 x 312550, 4 x 158668 and 1 x GBP216).
Brake Disc;
TR4 (early) 11" Diameter - (2) - 203189
TR4 (late)/4A/5/250
10 16/16" Diameter - Standard - (2) - 209327
10 16/16" Diameter - Uprated - (2) - 209327UR
Bolt - disc to hub - (8) - 113150
Spring Washer for bolt - (8) - GHF333
Brake Pads - standard (set 4);
TR4 (early) - (1) - GBP172
TR4 (late)/4A/5/250 - (1) - GBP132
Brake Pads - Kevlar (set 4);
'Green Stuff' Kevlar pads - for increased stopping power.
TR4 (early) - (1) - GBP172GS
TR4 (late)/4A/5/250 - (1) - GBP132GS
Brake Kits - standard;
Disc & Pad Set.
TR4 (early) - (1) - RF4094
TR4 (late)/4A/5/250 - (1) - RR1122
Disc, Pads & Shoes Set;
TR4 (early) - (1) - RF4094FR
TR4 (late)/4A/5/250 - (1) - RR1095
Pad Retaining Plate (TR4 early) - (4) - 509051
Anti-Rattle Spring (TR4 early) - (4) - 509049
Retaining Screw (TR4 early) - (4) - SH604041
Washer for above (TR4 early) - (4) - GHF331
Pad Retention Pin Kit;
TR4 (late)/4A/5/250 - (1) - GBK1003
Anti-Squeal Shim Kit;
TR4 (late)/4A/5/250 - (1) - 27H2953
Brake Caliper;
TR4 (early)
Reconditioned.
RH - (1) - 206507R
LH - (1) - 206506R
TR4 (late)/4A/5/250
New
RH - (1) - 307976
LH - (1) - 307977
Reconditioned
RH - (1) - 307976R
LH - (1) - 307977R
The imperial threaded calipers fitted to late TR4/5/250/6 were fitted with 2 different types of piston and seal kit.
It is possible that your vehicle may have had alternate calipers fitted at some stage of its life, so it is important firstly to check that both calipers are the same type and secondly of which type they are, before ordering any service parts.
Caliper Piston;
Type 16P Caliper - (4) - 510792
Type 16PB Caliper - (4) - 157685
Repair Kit (per car);
Type 16P Caliper - (1) - 601960
Type 16PB Caliper - (1) - 519731
Caliper Bleed Screw;
Imperial - (2) - 601959
Metric (if fitted) - (2) - RTC1115A
Dust Cap - bleed screw - (2) - 234957A
Caliper Mounting Bolt - (4) - 113142
Spring Washer for above - (4) - WL600071
Brake Shoe Set (per car) - (1) - GBS778
Brake Drum - (2) - 210578
Screw - drum retaining - (4) - V5435
Wheel Cylinders & Repair Kits;
TR4 (early)(0.75" bore)
To CT5655 (wires), CT5782 (steel).
Wheel Cylinder - (2) - GWC1112
Repair Kit - (1) - 18G9065
TR4 (late)/4A/5/250 (0.70" bore)
From CT5656 (wires), CT5783 (steel).
Wheel Cylinder - (2) - GWC1154
Repair Kit (per car) - (1) - 512351
Retaining Kit;
Wheel Cylinder (per car) - (1) - RR1177
Bleed Screw only - wheel cylinder - (2) - 556508A
Dust Cap - bleed screw - (2) - 234957A
Rubber Boot only - wheel cylinder - (2) - 505093A
Operating Lever - hand brake - (2) - 157672
Rear Brake Adjuster - (2) - 519762
Brake Shoe Return Spring (set of 4) - (1) - GRSRS8
Brake Shoe Retaining Kit (per car) - (1) - BAU1420A
Brake Master Cylinder;
TR4 (0.75" bore) - (1) - 131661
TR4/4A (0.70" bore) - (1) - 132909
TR5/250 - (1) - GMC234
Master Cylinder Repair Kit;
TR4 (0.75") - (1) - GRK1027
TR4/4A (0.70") - (1) - 18G8986
TR5/250 - (1) - 517332
Brake/Clutch Fluid;
Unipart/DOT 3 (1 litre) - (ar) - GBF103
Silicone (0.5 litre) - (ar) - RX1327
Silicone (1 litre) - (ar) - RX1326
Unlike normal brake/clutch fluids, Silicone fluid does not absorb moisture.
This will avoid corrosion in the system (and under strenuous braking conditions tends not to boil).
Also, it won't harm paintwork if spilt.
Note: Before filling with Silicone fluid, the entire hydraulic system should be flushed out.
Brake Servo - (1) - 218072
Seal Kit for Servo - (1) - 18G8951A
Diaphragm not included.
Hose - servo to manifold - (1) - 159230
Valve - non return on manifold - (1) - ADU1402
All Pipes are fully made up for whole vehicle. (Flexible Hoses not included).
TR4 RHD - (1) - RF4046
TR4 LHD - (1) - RF4046LHD
TR4A RHD - (1) - RF4047
TR4A LHD - (1) - RF4047LHD
TR5/250 RHD - (1) - RR1429RHD
TR5/250 LHD - (1) - RR1429LHD
Flexible Hose - standard front;
TR4 - (2) - GBH206
TR4A/5/250 - (2) - GBH203
Flexible Hose - Braided, front;
TR4 - (2) - GBH122GR
TR4A/5/250 - (2) - GBH203GR
Flexible Hose - rear (to axle);
TR4 - standard - (1) - GBH122
TR4 - braided - (1) - GBH122GR
Flexible Hose - standard rear;
TR4A/5/250 RH - (1) - GBH177
TR4A/5/250 LH - (1) - GBH178
Flexible Hose - braided, rear;
TR4A/5/250 RH - (1) - GBH177GR
TR4A/5/250 LH - (1) - GBH178GR
Flexible Hose - braided, car sets;
TR4 - (1) - RF4127GR
TR4A/5/250 - (1) - RR1428GR
Brake Line Connectors (front);
Front 5 Way - early TR4 - (1) - 137075
With brake switch.
Front 4 Way - later TR4 - (1) - 565719
Without brake switch.
Front 4 Way - TR4A - (1) - 565719
Without brake switch.
Front 3 Way - TR5/250 - (1) - BTB657
Without brake switch.
Brake Line Connectors (rear);
Rear 3 Way - all models - (1) - BTB657
Connector - main front to rear brake;
All Models - (1) - ACB5559
Valve - front connector - (1) - 116197
not always fitted.
Switch - brake pressure light - (1) - 126845
TR4 early.
Switch - brake pedal light - (1) - 134529
All models.
Gasket - rear hose, copper - (2) - 233220A
All models.
Pedal Rubbers - brake & clutch - (2) - 122289
All models.
Spring - brake & clutch pedal return - (2) - 57950
All models.
Cable - lever to compensator - (1) - 202069
Cable - compensator;
RH Rear - (1) - 129284
LH Rear - (1) - 129283
Rear Cable End Fork - (2) - 57191
Clevis Pin for above - (2) - 57192
Clevis Pin - wheel cylinder end - (2) - PJ8808
Lever Assembly - handbrake - (1) - 131321
Lever Grip - (1) - 131312
Gaiter - lever/floor - (1) - 705402
Cables Assembly - (2) - TKC248
Cable End Fork - (2) - 138247
Clevis Pin for above - (2) - PJ8808
Lever Assembly Handbrake - (1) - 148078
Lever Grip - (1) - 131312
Grommet - cable to heelboard - (2) - 600396
Brake/Clutch Fluid;
Unipart/DOT 3 (1 litre) - (ar) - GBF103
Silicone (0.5 litre) - (ar) - RX1327
Silicone (1 litre) - (ar) - RX1326
Brake Cleaner (aerosol) - (ar) - GBF901
Anti-Seize Grease - (ar) - RX1345
Brake Rubber Grease - (ar) - 514578
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and are used with their Licence under the Special 'Heritage' approval Scheme.
All original part numbers & illustrations have been reproduced by kind permission of British Motor Heritage.