Lucas Components
(up to 1954)

for AC's post-war 2 Litre Saloon
Description

Most of the information here comes from period Lucas publications. A few details may be incorrect, and I have added my own comments where necessary. The Lucas data covered years up to 1954, hence 1955 onwards is not shown. For some reason, Lucas omitted 1947 from many references.

Notes in green are by the webmaster


Lucas model and part numbers

Ammeter

Type CZU20

1948-50: 36037A (white print on black) (30-0-30 reading)
1951-54: 36105A (brown print on cream) (30-0-30 reading)


Battery

1948-51: SLT13A
1952-54: GT11A

Original batteries had mounting flanges at each end held down by a pair of 8 3/4" long 1/4" dia. rods.


Cable sundries

Rubber wiring grommet bore for hole: 115806
Rubber wiring grommet bore for hole: 858063
Single cable clip (nickel-plated) 9/32" bore, 0.196" screw hole: 187045
Chassis cable clip 2 long: 187094
Cable strap: 850882 aluminium 7" long
Single cable snap connector: 900288
4-way cable snap connector: 850641
Snap-in Terminal End for above: 900269


Coil

1947-54: 45020A/B, Model Q12, black finish, earth return (positive)


Control Box

1948-51: 37065E Model RF95/2 fitted with cut-out 33075 (LRT9/2)
1952-54: 37048E Model RF96/1 superceded by 37174 Model RB106/1 fitted with cut-out 33075 (LRT9/2)

The earlier control box incorporates the fuses and there is no separate fuse box (although very early wiring diagrams show an extra fuse for side/tail lamps). The series 1 and 2 AC handbooks illustrate the wrong control box, although the earliest 1947/48 ACs may have had the one illustrated?


Distributor

40143F

Model DX6A, Type D8, clockwise, earth return. ECM curve number 396. Range=16 to 18 degrees.

Parts for above:
Cap: 407043
Rotor-arm: 407030
Contact set: 407050
Condenser: 407044
Spring set (auto-advance): 407256/S
Weight: 415729
Bushing (top): 404374
Bushing: 410590
Cam: 407168

The AC handbook also refers to earlier distributors part numbers 40143A, B or D, with lower lift cams requiring smaller contact breaker gap (0.011 vs 0.018). Lucas parts list shows all versions to have the same cam (407168), and only 40143F fitted to the post-war AC.


Fuse Box

1951: 385211 Model SF5/2 (clip-fixed cover)
1952-54: 37154A Model SF4 (screw fixed cover) (2 x 35A and 2 x 50A fuses)


Generator

22428A, Model C45PV-3, Type D8, earth return.

Parts for above:
Cover band: 228022
Brush set: 238061 Quantity per set=2. Part number for individual brush: 238035 (dimensions: Width=1.00, height=0.750, thickness=0.312, lead length=2.406). Brush index no.1. Eyelet bore=0.189.
Bearing bush: 238567 (dimensions: ID=0.628, OD=0.754, width=0.968)
Bearing (drive end): 189308 Type 117 ball-race metric size (dimensions: ID=17mm, OD=47mm, width=14mm)
Field coils: 238784


Horns

1948-49: 69021A (low note) and 69022A (high note). Model WT29 black finish
1950-54: 69011F (low note) and 69012F (high note). Model WT614 black finish

The earlier WT29 horns can be identified by their circular trumpets.


Horn relay

1950-54: 33135B

Early cars had no horn relay. They were earthed via the horn switch when pressed, requiring a thick lead for the heavy current.


Lamps

Fog Lamps

1950-51: 55010A Model FT57, 6 3/8 diameter, shallow domed fluted lens. Bracket: 056117.
1952: 55055B Model SFT700S, 7 diameter, flat/block lens.
1952 later: 55084A Model SFT700S, 7 diameter, flat/block lens.
1953-54: 55055B Model SFT700S, 7 diameter, flat/block lens.


Headlamps (UK) Model F700 Mk III, chrome-plated reflector, 8.

1948-49: 50799D (LH) and 50579K (RH). Rubber gasket 553561. Bulb 354 (LH lamp), 325 (RH lamp). Rim 552912. Light unit 552402 diamond ("cat's eye") pattern.

1950: 50445K (LH) and 50446K (RH). Rubber gasket 552915. Bulb 354 (LH lamp), 325 (RH lamp). Rim 552913. Light unit 552402 diamond ("cat's eye") pattern.

1951-52: 50799D (LH) and 50579K (RH). Rubber gasket 553561. Bulb 354 (LH lamp), 325 (RH lamp). Rim 552912. Light unit 552402 diamond ("cat's eye") pattern.

Superceded by 51344A, light unit 553921 block pattern lens.

1952-53: 50959 LH and RH. Rubber gasket 553561. Bulb 354. Rim 552912. Light unit 553921 block pattern lens.

1954: 51344A LH and RH. Rubber gasket 554279. Bulb 354. Rim 554439. Light unit 553921 block pattern lens.

AC's handbook simply states bulb 354 for the headlamps in the UK.


Headlamps (Dip left export)

1948-49: 50799D
1950: 50445K
1951-52: 50799D
1952-53: 50959A
1954: 51344A


Headlamps (Dip right export)

1948-49: A50799D
1950-52: A50445K
1952-53: 50528M
1954: 51345A


Headlamps Europe (excluding France). Vertical dip.

1951- 52: B50799D
1952- 53: 50961A
1954: 51346A


Headlamps France

Model F700-EF. Vertical dip.

1949: 50808D
1950: 50790E Model F700-1EF
1951- 52: 50808D
1952- 53: 50978A
1954: 51411A


Number plate lamp

1948-54: 53107A (superceded by 53109) Model 474. Bulb: 989.


Reversing lamp

1953-54: 52162B/D Model 488. Bulb 380.


Side lamp

1948: 52120B/E. Model 461-1 (2 11/32 diameter). Bulb 207.
1949: 52143A (superceded by 52160). Model 488 (2 23/32 diameter). Bulb 222.
1950-51: 52160A. Model 488 (2 23/32 diameter). Bulb 222.
1952-54: 52143A (superceded by 52160). Model 488 (2 23/32 diameter). Bulb 222.


Stop tail lamp

1948: 53082A (superceded by 53194). Model 461. Rim (including lens): 572815 (superceded by 572792). Bulb: 380.
1949- 54: 53178B/D Model 488. Rim: 572734. Bulb 361 (superceded by 380). Lens: 572704 (2 3/8 diameter).

Side and tail lamps changed from model 461 to 488 around mid to late 1949.


Stop tail number plate lamp (export)

1948: 53077A Model ST52D. Superceded by 53244B Model 525.


Tail and number plate lamp (Norway)

1948-52: 53007B Model AT201L


Panel lamp

1951-54: 39007A Model PL31 (bulb holder). Bulb: 987.


Ignition warning light

1948-54: 38013B (superceded by 38049B) Model WL3-1 L19 red window. Bulb 970.


Mirror

1947-54: 062552 Model 580-103, frameless, chrome-plated bracket, black painted clip. Bracket: 620962. Mirror: 580797 flat (5 15/16 x 2 7/16).

Lucas data only shows this mirror fitted from 1950 onwards, but earlier cars also had this mirror from new.


Starter motor

1948-49: 256011 superceded by 25514
1950-54: 25532A/B superceded by 25514

25514A Model M418G, type G76. (Also fitted to Land Rover 1948).

Brush set: 255659 (quantity 2). Individual brushes: 263018. Dimensions: Width=0.753", height=0.559", thickness=0.345", lead length=3.75". Brush index no. 1.
Bearing bush: 255491. Dimensions: ID=0.626, OD=0.752, width=0.750.
Pinion and sleeve: 255672
Pinion spring: 255727
Bearing bush: 270883
Bearing intermediate bracket: 255853
Field coils: 255625


Steering column control

1948-51: 32754B/F, Model CC3, Type D/16A/47.
1952-54: 32848A/E, Model CC3.


Suppressor

1954: 78114A Type WS5 for distributor cap center terminal. Resistor type of suppressor.


Switches

Dipper switches

1948-54: 31284A Model FS22-1


Foglamp switch

1949-50: 31285A superceded by 31287.
1951-54: 31201B Model PS7-1


Foglamp switch knob

316231


Lighting and ignition switch

1948-49: 34035A superceded by 34055. Model PLC6, black.
1950-54: 34062A superceded by 34056. Model PLC6, cream with chrome bezel.


Panel switch

1947-49: 31285A superceded by 31276 Model PS6, black.
1950-54: 31271A superceded by 31339 Model PS6, cream with chrome bezel.


Starter solenoid

1949: 76022B Model ST900-1. Rubber cap end: 760130
1950-54: 76411D Model ST950. Rubber cap end: 760130


Starter switch

1947-1949: 31300A superceded by 31107. Model SS5, black.
1950-54: 31272A. Model SS5, cream with chrome bezel.


Stop lamp switch

1948-51: 31281B Model 54C

Stop lamp switch spring

315543 (3 long)


Windscreen wiper switch

1951-54: 31271A superceded by 31339 Model PS6, cream with chrome bezel.

Earlier ACs had a control box rather than a switch.


Terminal block

1948-53: 37082A Model TB8 (8-way snap connector)
1953-54: 37088A


Trafficators

1948-50: 54018D Model SF34N. (Staybrite finish). Arm cover: 581124. Fixing plate 538316 Type 15G. Bulb 256. (Superceded by 053981 Model SF80).
1951-52: 54039A. Model SF34N. (Staybrite finish). Arm cover: 581124. Bulb 256. (Superceded by 053981 Model SF80).
1953-54: 54044D. Model SF80. (Staybrite finish). Arm cover: 582027. Fixing plate 582087 Adaptor plate. Bulb 256.

053981. Model SF80. (Staybrite finish). Arm cover: 582027. Moulded arm: 582026. . Fixing plate 582087 Adaptor plate. Bulb 256.

Festoon type bulb for trafficator: 256, 3 watts (7.5 x 35.6mm).


Windscreen wipers

1948-49: 072599N and 072599Q. Model CR1, type D8, 120 degrees.

Motor: 75055K with 072599N, and 75055L with 072599Q.
Wheelbox: 72590 (spindle length 3)
Control box: 72593
Rack assembly: 736177
Rack assembly length: 27 3/8
Inner cable rack: 736024
Rack casing, motor to wheelbox: 739832
Rack casing, 4 nearside wheelbox: 740032
Rack casing, 3 offside wheelbox: 740031
Rack casing, wheelbox to control box, offside: 739933
Rack casing, wheelbox to control box, nearside: 739933
Guide tube, offside wheelbox: 735895
Grommet: 729423

1950: 072693D and 072693E. Model CR1, type D11, 120 degrees.

Motor: 75055K with 072693D, and 75055L with 072693E.
Wheelbox: 72590 (spindle length 3)
Control box: 72593
Rack assembly: 736364
Rack assembly length: 27 3/8
Inner cable rack: 736024
Rack casing, motor to wheelbox: 739832
Rack casing, 4 nearside wheelbox: 740032
Rack casing, 3 offside wheelbox: 740031
Rack casing, wheelbox to control box, offside: 739933
Rack casing, wheelbox to control box, nearside: 739933
Guide tube, offside wheelbox: 735895

1951: 072699 (130 degrees) and 072699A (120 degrees) and 072699B (120 degrees). Model CR4, type D12

Motor: 75055K with 072699, and 75075J with 072699A, and 75075K.
Wheelbox: 72590 (spindle length 3)
Rack assembly: 736307
Rack assembly length: 44 13/16
Rack casing, motor to wheelbox: 739838
Rack casing, 3 offside wheelbox: 740031
Rack casing, wheelbox to wheelbox: 739934
Grommet: 729423

1951-54: 072776 Model CRT14, type D12, 120 degrees.

Motor: 75153A
Wheelbox: 72590 (spindle length 3)
Rack assembly: 736307
Rack assembly length: 44 13/16
Rack casing, motor to wheelbox: 739838
Rack casing, 3 offside wheelbox: 740031
Rack casing, wheelbox to wheelbox: 739934
Grommet: 729423 (or 729313 or 735842?)

Wiper motor parts

Brush set: 729367
Worm wheel, pinion and bearing: 738988

Windscreen wiper arms

1948-50: 735098 adjustable type (7 to 9). Standard fixing (rubber peg).
1951-54: 737557 (LH) and 737453 (RH). Cranked to 15 degrees. Length 9. Wrist action fixing.

Wiper blades

1948-50: 727759 Standard fixing, chrome finish, 5 ply rubber, 9 long.
1951-54: 737572 superceded by 741680 Wrist action fixing, chrome finish, moulded rubber, 10 long.

The earlier CR1 model has wipers (straight-arms) that park off the screen, and are parked there by hand (via the control box). The later CR4 and CRT14 models have self parking wipers (cranked and handed arms).


HOME-PAGE

Sitemap





Website started 29th December 2006