CLUTCH PLATE TR4A-6 LAYCOCK

Part No:

148402

NOT AVAILABLE This part is no longer available

This Laycock Diaphragm Clutch Driven Plate is not available new. For that reason we offer an exchange part 148402EX which is remanufactured to the original specification.

Note that Laycock clutch parts are very difficult to find so an alternative detailed below may need to be used. If you have an old plate in reconditionable condition we will be able to offer this clutch plate on an exchange basis. A Borg & Beck plate will not be accepted as an exchange

Two types of clutch assemblies consisting of a driven plate and a cover assembly were fitted to TR4A, 250, 5 and 6, Borg and Beck being one manufacturer and Laycock being the other. Both Driven Plates and Cover Assemblies are interchangeable. In addition a raised finger version is available which once again is completely interchangeable with all other components listed.

See below to choose suitable components.

Uprated Release Bearing GRB211HD and a phosphor bronze carrier as well as uprated parts are listed below. A light duty cover is available too. see below

17 plates in total

PLATE A - ENGINE: ENGINE UNIT COMPLETE, GASKET SETS, CYLINDER BLOCK, FRONT AND REAR PLATES AND OIL PUMP

PLATE C - ENGINE: CRANK, PISTONS CONNECTING RODS AND CAMSHAFT

PLATE B - ENGINE: CYLINDER HEAD

PLATE J - ENGINE: OIL FILTER ASSEMBLY

PLATE E - ENGINE: INLET AND EXHAUST MANIFOLDS. HEATER PIPE

PLATE K - ENGINE: ALTERNATOR MOUNTING, SPARK PLUGS AND HT LEADS

PLATE D - ENGINE: WATER PUMP ASSEMBLY, THERMOSTAT UNIT AND TEMPERATURE TRANSMITTER

PLATE F - ENGINE: CLOSED CIRCUIT BREATER

PLATE L - CLUTCH: COVER, PLATE, RELEASE MECHANISM AND SLAVE CYLINDER

PLATE M - GEARBOX: CASING, TOP COVER AND MOUNTING

PLATE N - GEARBOX: MAINSHAFT, CONSTANT PINION SHAFT, COUNTERSHAFT AND REVERSE GEAR

PLATE BH - OVERDRIVE: OVERDRIVE KIT

PLATE BJ - OVERDRIVE: ASSEMBLY DETAILS

PLATE T - PROPELLOR SHAFT AND ROAD WHEELS

PLATE R - INDEPENDENT REAR AXLE: DIFFERENTIAL UNIT, REAR AXLE SHAFTS AND HUB UNITS

PLATE AD - RADIATOR: HOSES AND OVERFLOW BOTTLE

PLATE AZ - BODY AND FITTINGS: HEATER KIT

Part No.	Description and Comments	Price	Add to Cart
148402EX CLICK FOR MORE INFO	CLUTCH PLATE LAYCOCK TR4A/6 EXCH. Revington TR information: Diaphragm Clutch Driven Plate Exchange. A deposit will be charged until a reconditionable part is returned. This Laycock Clutch Driven Plate is not available new. Note that Laycock clutch parts are very difficult to find... READ MORE	£129.04 Ex VAT @ 20% £107.53	Available to order
GRB211HD CLICK FOR MORE INFO	BEARING CLUTCH RELEASE H/DUTY Revington TR information: TR4A-6 Release bearing, heavy duty. The introduction of this bearing has been prompted by the recent poor quality of the original style bearing. GRB211HD is a modern bearing which is much more reliable than the original... READ MORE	£77.89 Ex VAT @ 20% £64.91
147858PB CLICK FOR MORE INFO	CARRIER RELEASE BEARING PB TR4A-6 Revington TR information: TR4A-6 clutch release bearing carrier made from high quality phosphor bronze. A very high quality part with an internal diameter machined to very tight tolerance for a perfect fit. The original TR4A part, of a similar... READ MORE	£145.51 Ex VAT @ 20% £121.26
GCC139EX CLICK FOR MORE INFO	CLUTCH COVER LAYCOCK 4A/6 RECON EX Revington TR information: Diaphragm Clutch Cover Assembly Exchange. A deposit will be charged until a reconditionable part is returned. Note that Laycock clutch parts are very difficult to find so an alternative detailed below may need to... READ MORE	£134.71 Ex VAT @ 20% £112.26	Available to order
GCP143 CLICK FOR MORE INFO	CLUTCH PLATE TR4A-6 B&B Revington TR information: Whist this Driven Plate is available new, Revington TR prefer due to varying quality of newly manufactured parts, often having fewer rivets holding them together than were present in the original equipment, to supply an... READ MORE	£122.28 Ex VAT @ 20% £101.90	Available to order
GCP143EX CLICK FOR MORE INFO	CLUTCH PLATE TR4A/6 RECON EXCH Revington TR information: Diaphragm Clutch Driven Plate Exchange, Borg and Beck type. A deposit will be charged until a reconditionable part is returned. Whist this driven plate is available new, Revington TR prefer this exchange part as quality of... READ MORE	£120.83 Ex VAT @ 20% £100.69
GCC228-1EX CLICK FOR MORE INFO	EXCHANGE LIGHT DUTY COVER TR4A-7 Revington TR information: Exchange TR4A-6 Diaphragm Clutch Cover suitable for light loads where the car is used for touring or casual use and a light feel to the clutch is important. Pull off pressure 55-65kg This cover can also... READ MORE	£120.89 Ex VAT @ 20% £100.74	Available to order
GCC228 CLICK FOR MORE INFO	CLUTCH COVER TR4A-7 BORG & BECK Revington TR information: Diaphragm Clutch Cover Standard specification. Whist this part is available new, Revington TR can also offer an exchange part GCC228EX which is remanufactured to the original specification. This cover can also be used in TR2-4 where... READ MORE	£155.90 Ex VAT @ 20% £129.92	Available to order
GCC228EX CLICK FOR MORE INFO	EXCHANGE CLUTCH COVER TR4A-7 BORG & BECK Revington TR information: Exchange TR4A-7 Diaphragm Clutch Cover suitable for normal and slightly uprated loads where the car is used for lively driving. Pull off pressure 66-80kg. This cover can also be used in TR2-4 where the flywheel has... READ MORE	£134.69 Ex VAT @ 20% £112.24
RTR1051 CLICK FOR MORE INFO	CLUTCH COVER UPRATED TR4A-7 Revington TR information: New clutch cover TR4A 6 uprated. Suitable for all fast road applications. Borg and Beck type 8.5"diameter, weight 4.8kg. The specification of this part is Torque capacity:224Nm (165lbs/ft) using driven plates RTR1052 or RTR1052EX Clamp load:... READ MORE	£392.20 Ex VAT @ 20% £326.83	Available to order
RTR1051EX CLICK FOR MORE INFO	EXCHANGE COVER UPRATED TR4-7 Revington TR information: Exchange TR4A - 6 uprated clutch cover. Suitable for all fast road applications. Borg and Beck, weight 4.8kg. (Standard TR2 weighs 6.2kg), exchange. Every bit as good as the outright product, but cheaper. Pull off pressure... READ MORE	£241.67 Ex VAT @ 20% £201.39	Available to order
RTR1052 CLICK FOR MORE INFO	CLUTCH PLATE UPRATED Revington TR information: New uprated clutch plate TR4A-6 uprated, Borg and Beck, type 8.5" diameter. Weight 1.4kg. The combination of this plate and cover RTR1051 works well for fast road/hillclimb, sprint and rally with power up to 150 BHP... READ MORE	£323.51 Ex VAT @ 20% £269.59	Available to order
RTR1052EX CLICK FOR MORE INFO	CLUTCH PLATE UPRATED EXCHANGE Revington TR information: TR4A-6 uprated clutch plate, Borg and Beck. Weight 1.4kg. 8.5" (215mm) diameter. The combination of this plate and cover RTR1051 works well for fast road/hillclimb, sprint and rally with power up to 150 BHP at the... READ MORE	£164.42 Ex VAT @ 20% £137.02	Available to order
RTR1418 CLICK FOR MORE INFO	TR4A-6 CLUTCH PLATE HIGH GRADE ORGA Revington TR information: TR4A-6 Organic Centre Plate capable of transmitting 257NM (189ftlb) of torque when used with RTR1417, RTR1417EX or RTR1417-1EX. Suits 1.25" x 10 spline. This plate can also be used in TR2-4 where the flywheel has been... READ MORE	£266.70 Ex VAT @ 20% £222.25	Available to order
RTR1417 CLICK FOR MORE INFO	CLUTCH COVER TR4A-7 DIAPHRAM H GRAD Revington TR information: TR4A-6 High grade diaphragm clutch cover for use with 8.5" RTR1418 and RTR1090 series plates, will transmit 314NM (231ftlb) torque. This cover can also be used in TR2-4 where the flywheel has been re-drilled to accept... READ MORE	£444.50 Ex VAT @ 20% £370.42	Available to order
RTR1417EX CLICK FOR MORE INFO	EXCHANGE COVER TR4A-7 DIAPHRAM H GRAD Revington TR information: Exchange TR4A-6 High grade diaphragm clutch cover suitable for very fast road cars, hillclimb and sprint and mild race cars. Pull off pressure 96-110kg. This Clutch Cover is 215mm (8.5") diameter and has a torque... READ MORE	£342.11 Ex VAT @ 20% £285.09	Available to order
RTR1417-1EX CLICK FOR MORE INFO	CLUTCH COVER TR4A-7 DOUBLE DIAPHRAM H GRAD Revington TR information: Exchange TR4A-8 High grade diaphragm clutch cover 8.5" featuring a double diaphragm for maximum torque transmission. Pull off pressure 90-110kg. This cover is the highest torque transmitting cover we can offer before going to very expensive... READ MORE	£420.32 Ex VAT @ 20% £350.27
RTR1090-1.25 CLICK FOR MORE INFO	CLUTCH PLATE CERAMETALIC TR4A-6 8.5" DIA Revington TR information: TR4A-6 Uprated Clutch Plate with standard type sprung hub but with cerametallic clutch material. suits 1.25" x 10 spline. Weight 1.7kg. Capable of transmitting 287NM (213ftlb) of torque when used with RTR1417 cover. Whilst the... READ MORE	£460.91 Ex VAT @ 20% £384.09	Available to order

Car Type	Plate	Plate Title	Plate No.	Triumph Part Description	No per Unit
TR250	N	CLUTCH	N15	DRIVEN PLATE ASSEMBLY Laycock clutch only	1
TR250	N	CLUTCH	N15	DRIVEN PLATE ASSEMBLY Laycock clutch only	1
TR5	L	CLUTCH: COVER, PLATE, RELEASE MECHANISM AND SLAVE CYLINDER	L15	DRIVEN PLATE ASSEMBLY Laycock clutch only	1
TR5	L	CLUTCH: COVER, PLATE, RELEASE MECHANISM AND SLAVE CYLINDER	L15	DRIVEN PLATE ASSEMBLY Laycock clutch only	1
TR6CP	Y	CLUTCH: Clutch Assembly and Operation	Y15	DRIVEN PLATE ASSEMBLY Laycock clutch only, alternative to 156868	1
TR6CP	Y	CLUTCH: Clutch Assembly and Operation	Y15	DRIVEN PLATE ASSEMBLY Laycock clutch only, alternative to 156868	1
TR6CC	Y	CLUTCH: Clutch Assembly and Operation	Y15	DRIVEN PLATE ASSEMBLY Laycock clutch only, alternative to 156868	1
TR6CC	Y	CLUTCH: Clutch Assembly and Operation	Y15	DRIVEN PLATE ASSEMBLY Laycock clutch only, alternative to 156868	1

Special Offer

BRAKE PIPE SET TR7 GREEN

CLUTCH PLATE TR4A-6 LAYCOCK

This part appears on the following Triumph Catalogue Plates

17 plates in total

148402EX

GRB211HD

147858PB

GCC139EX

GCP143

GCP143EX

GCC228-1EX

GCC228

GCC228EX

RTR1051

RTR1051EX

RTR1052

RTR1052EX

RTR1418

RTR1417

RTR1417EX

RTR1417-1EX

RTR1090-1.25