Instrument Panel & Warning Lights for Jaguar XK 120 & 140

The exact type of Panel and Warning Lights on the Instrument Panel of the XK 120 and 140 is not very well defined in the Spare Parts Catalogue and sometimes confusing or even missing. Combination of Jaguar and Lucas information sources leads to the following survey:

XK 120 Instrument Panel C 2743 (OTS versions up to September 1952 without Direction Indicators)

   Ignition Warning Light 38020/A     Early Panel Light            Clips for early panel light    Bulb holder 39007/A

• Warning Light Ignition (WL4/L11) Lucas 38020/A Jaguar C2755  Bulb 987 E10 12V 2.2W

Note: it is very unlikely that the WL 38020 was still applied in this version as Lucas had replaced it since 1949 by 38048.

• Bezel for Ignition warning light Lucas 304853 Jaguar C2642 (Notice the difference from later version: 305414)
• Panel Lights (Unnumbered: not Lucas? See photo above including clips for mounting bulb holder)
• “Head lamp” Warning Light Bulb Holder PL31 Lucas 39007/A Note 3 Bulb 987 E10 12V 2.2W

XK120 Instrument Panel C 5529 ( FHC versions from November 1950 to September 1952 with Direction Indicators)

• Warning Light Ignition & Direction Indicator (WL4) Lucas 38048/A Jaguar C4617 Bulb 987 E10 12V 2.2W

Note that both the Ignition as well as the Trafficator WL initially required a two wire connection (insulated return, no earth return possible) as also applied on early Mk VII versions. The (fully insulated, plastic housing) type 38020 and 38048 fulfilled that requirement.

• Bezel with IGN Lucas 305414 Jaguar C4625
• Bezel with TRF Lucas 305411 Jaguar C4626
• Panel Lights (Unknown type: not Lucas? See photo above)
• “Head lamp” Warning Light Bulb Holder PL31 Lucas 39007/A Note 3 987 E10 12V 2.2W

XK 120 Instrument Panel C7290 (OTS, DHC & FHC versions from September 1952 to March 1954)

The Spare Parts Catalogue mentions the following parts, but their application is doubtful.

• Warning Light Ignition (WL4/L11) Lucas 38020/A Jaguar C2755 Bulb 987 E10 12V 2.2W

Note: it is very unlikely that the WL 38020 was actually still applied at all in this later version as Lucas had replaced it since 1949 by 38048. Also the preceding instrument panel C5529 had already the 38048 model installed.

• Warning Light Direction Indicator (WL4) Lucas 38048/A Jaguar C4617 Bulb 987 E10 12V 2.2W
• Bezel with IGN Lucas 305414 Jaguar C4625
• Bezel with TRF Lucas 305411 Jaguar C4626
• Panel Lights Bulb Holder from WL13 Lucas 38153/A Bulb 987 E10 12V 2.2W

It is reported that both WL 4 types 38020 and 38048 had meanwhile been replaced by Bulb Holder 38153/A from the WL13 range which later was coded 554734. For this the Instrument Panel had been redesigned with an insulated construction for the ignition warning light. This implies that 6 Bulb Holders 554734 were used for all Warning and Panel Lights. Panel Light Bulb Holder 38153/A or 554734 is of the “6 finger” type, fitting a ⅝” (16 mm) diameter panel hole.

• “Head lamp” Warning Light Bulb Holder PL31 Lucas 39007/A  Bulb 987 E10 12V 2.2W

XK 120 Instrument Panel C 8395 (OTS, DHC & FHC versions from March to September 1954)

• Warning Light Ignition (WL4/L11) Lucas 38020/A Jaguar C2755 Bulb 987 E10 12V 2.2W

Note: it is very unlikely that the WL 38020 was actually still applied in this later version as Lucas had replaced it since 1949 by 38048. Also the preceding instrument panel C5529 had already the 38048 model installed.

• Bezel with IGN Lucas 305414 Jaguar C4625
• Warning Light Direction Indicator (WL4) Lucas 38048/A Jaguar C4617 987 E10 12V 2.2W
• Bezel with TRF Lucas 305411 Jaguar C4626
• Bulb Holder for Panel Lights (WL4) Lucas 38048/A Jaguar C4617 987 E10 12V 2.2W
• “Head lamp” Warning Light Bulb Holder PL31 Lucas 39007/A – 987 E10 12V 2.2W

Note: Jaguar part number for Warning Light Bulb Holder PL31 (Lucas part No. 39007/A) is unknown. This bulb holder is placed in the Smiths Speedometer in a ¾ “ (19 mm) hole.

Certain XK 120 instrument panels (exact period is unclear) have a construction using 2 small brackets screwed to the instrument plate to hold the WL4 housing (see photo below).  Later instrument panels no longer have this construction. Instead they have an oval shaped metal reinforcement plate riveted to the steel panel and metal bulb holder 554734 which is directly connected to earth via the “6 finger” construction. For the Ignition Warning Light this oval shaped metal bracket is insulated from the instrument plate as this bulb requires two wire connections (“insulated return” (IR) with a white and a yellow wire and no earth).

 

Warning Light Direction Indicator 38048/A and mounting brackets

XK 140 (from 1954 onwards)

Warning Lights for TRF & IGN

• Bulb Holder Warning Light WL4 for IGN (< 1956) Lucas 38020/A Jaguar C2755 Bulb 987 E10 12V 2.2W

Note: it is very unlikely that WL 38020 was actually still applied in the XK 140 as Lucas had replaced it since 1949 by 38048. It probably has been copied from the preceding XK 120 panel. But in reality we see that neither 38020 or 38048 was used. Bulb Holder 38153/A or 554734 is installed.

 Probably Lucas 38153/A; only 1954 -1956

• Bulb holder for above (≥ 1956) Lucas 554734 Bulb 987 E10 12V 2.2W
• Bezel with IGN Lucas 305414 Jaguar C4625
• Bulb Holder Warning Light WL4 for TRF (< 1956) Lucas 38048/A Jaguar C4617 Bulb 987 E10 12V 2.2W

Note: this line has probably has been copied from the preceding XK 120 panel. Bulb Holder 38153/A or 554734 is installed instead.

• Bulb holder for above (≥ 1956) Lucas 554734 Bulb 987 E10 12V 2.2W
• Bezel with TRF Lucas 305411 Jaguar C4626

Note: All Bulb holders of the WL4 or WL13 range are of the “6 finger” type and fit a ⅝” (16 mm) diameter panel hole.

Panel Lights for Instrument lighting

Note: no panel lights are mentioned in the Spare Parts Catalogue

• Panel Lights Bulb Holder from WL13 Lucas 38153/A (Earth Return) for  Bulb 987 E10 12V 2.2W
• Lucas 38153/A is replaced (1956-1957) by Lucas 554734 (Earth Return) for Bulb 987 E10 12V 2.2W
• Lucas 554734 bulb holder is preceded by Lucas 860547 (Earth Return type).

Note: Lucas 554734 is also available with rubber boot under same number but this can be removed to obtain the original “looks”.

Other references: Lucas 863511 Bulb Holder (Insulated Return type) for Bulb 987 E10 12V 2.2W .

Corresponding BMC code number is 37H5181 (Earth Return type) for Bulb 987 E10 12V 2.2W

Bulb Holder for Warning Lamps 554734 (including Rubber Boot) and Lamp Socket 863511 with insulated return. Both fit the WL 13 type of Warning Light.

Warning Light Head Lamps in Speedometer

• “Head lamp” Warning Light Bulb Holder PL31 Lucas 39007/A Bulb 987 E10 12V 2.2W. Corresponding BMC code number: 3H914

Note: All Bulb holders of the WL11 or WL12 range fit in a 3/4” (19 mm) diameter panel hole.

Original Bulb Holder 39007        Reproduction Bulb Holder 39007        Bulb holder 39007 in WL12

NOTE: this is the Bayonet Bulb Holder Lucas 554710 for bulb 989 12V 5W BA9 used for Pilot lamps (not applied in the Jaguar XK range, but also fits a ⅝” hole).

Lucas bulb 989 12V 5W BA9