Production

Jaguar and Daimler 4.2 and 5.3

XJ 4.2C

Six-cylinder model using the XK engine.

XJ 5.3C

V12-powered grand touring version.

Daimler Sovereign

Luxury-focused variant with Daimler styling.

Daimler Double-Six

Top specification V12 model with premium trim.

Production Totals and Dates
Daimler Double-Six Jaguar XJ 5.3C Daimler Sovereign Jaguar XJ 4.2C
LHD Total RHD Total LHD Total RHD Total LHD Total RHD Total LHD Total RHD Total
Produced From February 1975 1973 1973 January 1973 December 1974 March 1973 1973 1973
1973 - 0 2F1001 2 2G50001 6 2G1001 10 - 0 2H1001 1 2J50001 9 2J1001 8
1974 - 0 2F1003 1 2G50007 18 2G1011 4 2H50001 1 2H1002 1 - 0 2J1009 2
1975 2F50001 13 2F1004 64 2G50025 811 2G1015 131 2H50002 31 2H1003 495 2J50010 2240 2J1011 944
1976 2F50014 11 2F1068 138 2G50836 323 2G1146 233 2H50033 29 2H1498 546 2J52250 817 2J1955 766
1977 2F50025 3 2F1206 167 2G51159 111 2G1379 226 2H50062 51 2H2044 543 2J53067 833 2J2721 886
Last 2F50027 2F1372 2G51269 2G1604 2H50112 2H2586 2J53899 2J3606
Produced to July 1977 27 8th November 1977 372 November 1977 1269 November 1977 604 October 1977 112 November 1977 1586 November 1977 3899 November 1977 2606
Total by Country
Country Country of Despatch Country of Residence
Gearbox applications in V12 cars
Gearbox Daimler Double-Six Jaguar XJ 5.3C
LHD Total RHD Total LHD Total RHD Total
Borg-Warner Model 12 2F50001 24 2F1001 213
GM THM400 2F50025 3 2F1214 159 2G51202 68 2G1389 216
Fuel Delivery in V12 cars
Delivery Method Daimler Double-Six Jaguar XJ 5.3C
LHD Total RHD Total LHD Total RHD Total
4x Zenith-Stromberg 175CD2SE 2F50001 1 2F1001 3
Lucas/Bosch D-Jetronic 2F50002 26 2F1004 369 2G50037 1233 2G1021 584
Count of Body Colour by Model
Body Colour Double-Six XJ 5.3C Sovereign XJ 4.2C Total
Count of Interior by Model
Interior Double-Six XJ 5.3C Sovereign XJ 4.2C Total

From February 1972 cars destined for North America were required to have a model year identifier as part of their chassis number. This allowed authorities to identify which emissions standard the car should adhere to. In response to this Jaguar added a prefix to their chassis numbers of 'U' which presumably stood for United States and then a second character that moved through the alphabet as the year changed. For the 2 door XJ the following prefixes are applicable.

Prefix Model Year
UF 1975
UG 1976
UH 1977

Engine numbers for both the straight 6 and V12 comprised of three parts. The prefix denoted the vehicle model the engine was built for, or perhaps assigned to. This was followed by a sequential serial number. The suffix gave the engine's compression ratio and on the V12 a second letter gave the piston and liner grade, either A or B. A grade liners are 0.001" smaller with a diameter of 3.543" versus the 3.544" of grade B.

Engine Prefix Sequence range Compression Ratio Piston/Liner Grade
4.2 XK 7L 74000-99999 N/A To 1974
4.2 XK 8L 1001-59687- S/L N/A From 1974, Standard Compression
5.3 V12 7P 4000-13294- S/L Carburetted
5.3 V12 7P 25001- S/L A/B Fuel Injected, Standard compression