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RHEOSTAT TR4-7

Part No:
BHA4278
Price
£37.28
Price Ex VAT @ 20%
£31.07

CURRENTLY UNAVAILABLE

This Rheostat Switch has a 21mm long thread and 21mm long shaft.

Triumph used a variety of parts numbers between TR4 - 7 for this instrument dimming rheostat as follows: -
129768 was fitted from TR4-TR6 up to CF1
159001 was fitted to North American models from CF1
150620 was fitted to European models from CR1
TKC3936 was fitted to all TR7-TR8

The above switches are almost identical and are now superseded to this number BHA4278.

This switch is supported on the TR5, TR250 and TR6 dashboard by bracket 621794, which is not illustrated in the original parts catalogues.

A similar rheostat, part number 57H5260 is fitted to TR3-3A and used to control the heater blower motor speed. See below.

33 plates in total

DISTRIBUTOR

PLATE 21-51 - DISTRIBUTOR

ELECTRICAL EQUIPMENT Sparking Plugs and Leads

PLATE 21-52 - ELECTRICAL EQUIPMENT Sparking Plugs and Leads

ELECTRICAL EQUIPMENT Coil

PLATE 21-53 - ELECTRICAL EQUIPMENT Coil

ELECTRICAL EQUIPMENT Alternator

PLATE 21-55 - ELECTRICAL EQUIPMENT Alternator

ENGINE (CARB MODELS) Alternator Mountings Up to Commission No. CF35000 (see 20-32 for future)

PLATE 20-31 - ENGINE (CARB MODELS) Alternator Mountings Up to Commission No. CF35000 (see 20-32 for future)

ENGINE (CARB MODELS) Alternator & Air Pump Mountings from Commission No. CF35001 (see 20-31 for previous)

PLATE 20-32 - ENGINE (CARB MODELS) Alternator & Air Pump Mountings from Commission No. CF35001 (see 20-31 for previous)

ELECTRICAL EQUIPMENT Starter Motor

PLATE 21-54 - ELECTRICAL EQUIPMENT Starter Motor

ELECTRICAL EQUIPMENT Windscreen Wiper Motor

PLATE 21-60 - ELECTRICAL EQUIPMENT Windscreen Wiper Motor

WINDSCREEN WIPER DETAILS Rack and gear, wheel boxes, motor mount, arms & blades

PLATE 21-61 - WINDSCREEN WIPER DETAILS Rack and gear, wheel boxes, motor mount, arms & blades

WINDSCREEN WASHERS Washer Bottle, Bracket, Pump & Tubes

PLATE 21-62 - WINDSCREEN WASHERS Washer Bottle, Bracket, Pump & Tubes

STEERING Outer Column, horn ring, cowls & supports

PLATE 21-31 - STEERING Outer Column, horn ring, cowls & supports

IGNITION SWITCH AND LOCK Steering Column Lock & shroud, Ignition Switch and Wiring

PLATE 21-68 - IGNITION SWITCH AND LOCK Steering Column Lock & shroud, Ignition Switch and Wiring

ELECTRICAL EQUIPMENT Horn Push, Indicator Switch, SideHead & Headlamp Flasher Switch

PLATE 21-58 - ELECTRICAL EQUIPMENT Horn Push, Indicator Switch, SideHead & Headlamp Flasher Switch

OVERDRIVE KIT Including Electrical Switching, Gearbox Top Cover, Transmission Cover an Speedometer Cable details

PLATE 22-55 - OVERDRIVE KIT Including Electrical Switching, Gearbox Top Cover, Transmission Cover an Speedometer Cable details

ELECTRICAL EQUIPMENT Speedometer, Revcounter & their Cables, Voltage Stabiliser

PLATE 21-72 - ELECTRICAL EQUIPMENT Speedometer, Revcounter & their Cables, Voltage Stabiliser

ELECTRICAL EQUIPMENT: FACIA Facia Instruments, Oil Pressure Pipe

PLATE 21-73 - ELECTRICAL EQUIPMENT: FACIA Facia Instruments, Oil Pressure Pipe

ELECTRICAL EQUIPMENT: FACIA Switches and Choke cable

PLATE 21-74 - ELECTRICAL EQUIPMENT: FACIA Switches and Choke cable

ELECTRICAL EQUIPMENT: FACIA USA ONLY Warning Lights

PLATE 21-75 - ELECTRICAL EQUIPMENT: FACIA USA ONLY Warning Lights

ELECTRICAL EQUIPMENT USA ONLY Speedometer & Cables USA Comm № CF35001 onward (see 21-72 for previous)

PLATE 21-76 - ELECTRICAL EQUIPMENT USA ONLY Speedometer & Cables USA Comm № CF35001 onward (see 21-72 for previous)

HEADLAMPS Headlamps, Rim, Shell and Wiring

PLATE 21-63 - HEADLAMPS Headlamps, Rim, Shell and Wiring

ELECTRICAL EQUIPMENT Front wing Flasher Repeater Lamp

PLATE 21-64 - ELECTRICAL EQUIPMENT Front wing Flasher Repeater Lamp

ELECTRICAL EQUIPMENT (CARB MODELS) Front Side and Flasher Lamps up to CF27000

PLATE 21-65 - ELECTRICAL EQUIPMENT (CARB MODELS) Front Side and Flasher Lamps up to CF27000

ELECTRICAL EQUIPMENT (CARB MODELS) Front Side and Flasher Lamp USA CF27001 onwards

PLATE 21-66 - ELECTRICAL EQUIPMENT (CARB MODELS) Front Side and Flasher Lamp USA CF27001 onwards

ELECTRICAL EQUIPMENT (P.I. MODELS) Front Side and Flasher Lamps

PLATE 21-67 - ELECTRICAL EQUIPMENT (P.I. MODELS) Front Side and Flasher Lamps

ELECTRICAL EQUIPMENT Boot Lamp and Number Plate Lamp

PLATE 21-70 - ELECTRICAL EQUIPMENT Boot Lamp and Number Plate Lamp

REAR LAMPS Stop, Tail, Flasher, Reverse Lamp Assembly, Lenses and Gaskets

PLATE 21-69 - REAR LAMPS Stop, Tail, Flasher, Reverse Lamp Assembly, Lenses and Gaskets

ELECTRICAL MISCELLANEOUS EQUIPMENT Relays, fuse box, flasher unit, door/ brake switches & Inertia Cut Out Switch

PLATE 21-71 - ELECTRICAL MISCELLANEOUS EQUIPMENT Relays, fuse box, flasher unit, door/ brake switches & Inertia Cut Out Switch

ENGINE (CARB MODELS) Water Pump, Thermostat, Temperature Transmitter

PLATE 20-19 - ENGINE (CARB MODELS) Water Pump, Thermostat, Temperature Transmitter

ELECTRICAL EQUIPMENT Horns

PLATE 21-59 - ELECTRICAL EQUIPMENT Horns

FUEL TANK fuel gauge sender unit, filler cap & feed pipe

PLATE 21-39 - FUEL TANK fuel gauge sender unit, filler cap & feed pipe

BATTERY and CABLES Battery, Cables and Fixings

PLATE 21-77 - BATTERY and CABLES Battery, Cables and Fixings

ELECTRICAL EQUIPMENT Wiring Harnesses

PLATE 21-78 - ELECTRICAL EQUIPMENT Wiring Harnesses

ELECTRICAL EQUIPMENT Radio AERIAL & SPEAKES

PLATE 21-79 - ELECTRICAL EQUIPMENT Radio AERIAL & SPEAKES