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EXTENSION FAN HUB

Part No:
142121

NOT AVAILABLE This part is no longer available

For use with Plastic fan only. Not available new. Use 128318SH

Various engine fan arrangements were used from TR2-TR4A which broadly fall into two categories, with the TR4A having a third option for plastic fans. The engine in a TR4-4A is further away from the radiator than a TR2-3B which accounts for the different size extensions. Ensure the correct bolt is used with the extension of choice.
 

TR2-3B
108493 Extension with an effective length of 95mm using bolt 108498
107251 Extension with an effective length of 100mm using bolt 108498.This extension is found on many engines but does not appear in the parts books. As the hub to which it fits is part number 107250 it is logical that it was a correct early fitment, the part number being superceded by 108493 in later parts books.
108498 Bolt with starting handle lugs 140mm long for use with extension 108493 and 107251
 

TR4
128318 Extension with an effective length of 114mm using bolt 128319
128319 Bolt with starting handle lugs 159mm long (measured from under the head) for use with extension 128318
 

TR4A with Metal fan
128318 Extension with an effective length of 114mm using bolt 142185
142185 Bolt without starting handle lugs 159mm long (measured from under the head) for use with extension 128318
 

TR4A with Plastic fan
142121 Extension with an unknown effective length using bolt HB1349
HB1349 Bolt plain without starting handle lugs unknown length for use with extension 142121
 

Note: - TR2-4A hub extensions have a register of 5.5mm so they all measure this much more overall.
 

For reference TR250, 5 and 6 extensions 148831 which are not interchangeable are 84mm long with no register and use bolt 148832 which is 103mm long (measured from under the head)




17 plates in total

ENGINE (Petrol Injection Model): Block and Sump Engine Unit 9.5:1, Decarbonising Gasket Set, Engine Gasket Set, Cylinder Block, Cylinder Liner, Rear Oil Seal Housing, Oil Pressure Adjustment Details, Oil Pump Assembly, Oil Sump Assembly, Dipstick Assembly, Front Engine Plate, Engine Mounting Bracket Assy, Rear Engine Plate, Engine Lifting Eyes, Oil Pressure Switch

PLATE N - ENGINE (Petrol Injection Model): Block and Sump Engine Unit 9.5:1, Decarbonising Gasket Set, Engine Gasket Set, Cylinder Block, Cylinder Liner, Rear Oil Seal Housing, Oil Pressure Adjustment Details, Oil Pump Assembly, Oil Sump Assembly, Dipstick Assembly, Front Engine Plate, Engine Mounting Bracket Assy, Rear Engine Plate, Engine Lifting Eyes, Oil Pressure Switch

ENGINE (Petrol Injection Model): Crankshaft, Camshaft, Pistons and Flywheel Crankshaft Assembly, Fan Assembly, Flywheel Assembly, Camshaft, Timing Cover Assembly, COnnecting Rod Assembly, Piston Assembly, Drive Shaft Assembly, Pedestal Assembly - Distributor and Petrol Injection Metering Pump

PLATE Q - ENGINE (Petrol Injection Model): Crankshaft, Camshaft, Pistons and Flywheel Crankshaft Assembly, Fan Assembly, Flywheel Assembly, Camshaft, Timing Cover Assembly, COnnecting Rod Assembly, Piston Assembly, Drive Shaft Assembly, Pedestal Assembly - Distributor and Petrol Injection Metering Pump

ENGINE (Petrol Injection Model): Oil Filter Oil Filter Assembly (Full Flow)

PLATE W - ENGINE (Petrol Injection Model): Oil Filter Oil Filter Assembly (Full Flow)

ENGINE (Petrol Injection Model): Cylinder Head and Rocker Assemblies Cylinder Head Assembly 9.5:1, Valves, Push Rod, Tappet, Rocker Shaft, Rocker Cover Assembly

PLATE P - ENGINE (Petrol Injection Model): Cylinder Head and Rocker Assemblies Cylinder Head Assembly 9.5:1, Valves, Push Rod, Tappet, Rocker Shaft, Rocker Cover Assembly

ENGINE (Petrol Injection Model): Alternator Mounting

PLATE X - ENGINE (Petrol Injection Model): Alternator Mounting

ENGINE (Petrol Injection Model): Closed Circuit Breather

PLATE T - ENGINE (Petrol Injection Model): Closed Circuit Breather

ENGINE (Petrol Injection Model): Water Pump and Thermostat Water Pump Details, Thermostat Unit, Temperature Transmitter

PLATE R - ENGINE (Petrol Injection Model): Water Pump and Thermostat Water Pump Details, Thermostat Unit, Temperature Transmitter

ENGINE (Petrol Injection Model): Manifolds and Heater Pipe Exhaust and Inlet Manifold, Manifold Gasket, Throttle Spindles and Butterflies, Heater Pipe-solid under manifolds

PLATE S - ENGINE (Petrol Injection Model): Manifolds and Heater Pipe Exhaust and Inlet Manifold, Manifold Gasket, Throttle Spindles and Butterflies, Heater Pipe-solid under manifolds

CLUTCH: Clutch Assembly and Operation Clutch Cover Assembly - Borg and Beck, Driven Plate Assembly - Borg and Beck, Clutch Cover Assembly - Laycock, Driven Plate Assembly - Laycock, Clutch Throw Out Bearing, Clutch Operating Fork, Clutch Operating Shaft Assembly, Clutch Slave Cylinder Assembly (1

PLATE Y - CLUTCH: Clutch Assembly and Operation Clutch Cover Assembly - Borg and Beck, Driven Plate Assembly - Borg and Beck, Clutch Cover Assembly - Laycock, Driven Plate Assembly - Laycock, Clutch Throw Out Bearing, Clutch Operating Fork, Clutch Operating Shaft Assembly, Clutch Slave Cylinder Assembly (1")

GEARBOX: External Gearbox Unit, Gearbox Gasket Set, Gearbox and Clutch housing Assembly, Front End Cover, Gearbox Extension, Speedo Driven Gear and Bearing, Top Cover Assembly, Change Speed Lever Assembly, Gearbox Attachment Details, Rear Engine Mounting

PLATE Z - GEARBOX: External Gearbox Unit, Gearbox Gasket Set, Gearbox and Clutch housing Assembly, Front End Cover, Gearbox Extension, Speedo Driven Gear and Bearing, Top Cover Assembly, Change Speed Lever Assembly, Gearbox Attachment Details, Rear Engine Mounting

GEARBOX: Internal Mainshaft, Constant Gear Train Assembly, Constant Pinion Shaft, Countershaft, Reverse Spindle, Reverse Operating Lever Assembly

PLATE AA - GEARBOX: Internal Mainshaft, Constant Gear Train Assembly, Constant Pinion Shaft, Countershaft, Reverse Spindle, Reverse Operating Lever Assembly

OVERDRIVE: 'A' Type: Kit

PLATE CA - OVERDRIVE: 'A' Type: Kit

OVERDRIVE: 'A' Type: Unit Assembly

PLATE CB - OVERDRIVE: 'A' Type: Unit Assembly

PROPELLOR SHAFT AND ROAD WHEELS Propellor Shaft, Disc Road Wheel, Centre Lock Wire Wheels, Balance Weights, Wheel Trim - Road Wheels

PLATE AG - PROPELLOR SHAFT AND ROAD WHEELS Propellor Shaft, Disc Road Wheel, Centre Lock Wire Wheels, Balance Weights, Wheel Trim - Road Wheels

INDEPENDENT REAR AXLE Rear Axle Center Assembly, Crown Wheel and Pinion Assembly, Inner Axle Shaft, Rear Axle Shaft and Hub Assembly, Outer Axle Shaft Assembly, Sleeve Yoke and Yoke Shaft Assembly, Drive Flange and Hub Assembly

PLATE AE - INDEPENDENT REAR AXLE Rear Axle Center Assembly, Crown Wheel and Pinion Assembly, Inner Axle Shaft, Rear Axle Shaft and Hub Assembly, Outer Axle Shaft Assembly, Sleeve Yoke and Yoke Shaft Assembly, Drive Flange and Hub Assembly

RADIATOR Radiator Block Assembly, Overflow Bottle

PLATE AV - RADIATOR Radiator Block Assembly, Overflow Bottle

BODY AND FITTINGS: Heater Heater Details, Demister Outlet

PLATE BR - BODY AND FITTINGS: Heater Heater Details, Demister Outlet