Oil Filter Equivalents ...

... for Unipart GFE121 and Champion 102:

BRANDPART NUMBER
AC DELCOSK
AC DELCOSR
AC DELCOST
AC DELCOX 19
AC DELCOX 7
AL FILTERSAL-16
ALCOSP-829
AP FILTERSAP 1140
AP FILTERSAP 3191 A
AUTOPARTFOE 059
BOSCH0 451 103 001
BOSCH0 451 103 002
BOSCH0 451 103 006
BOSCH0 451 103 057
BOSCH0 451 103 100
BOSCH0 451 103 107
BOSCH0 451 103 191
BOSCH0 451 103 219
BOSCH0 451 103 221
BOSCH0 451 103 222
BOSCH9 457 282 410
CHAMPPH 2820 A
CHAMPIONC 102
CHAMPIONC 164
CLEANDO 223
CLEANDO 886
COOPERSZ 1097
COOPERSZ 27
COOPERSZ 69
COOPERSZ 80
COOPERSZ 91
CROSLAND2131
CROSLAND529/1
CROSLAND661
DONALDSONLFP 55-0882
DONALDSONP 55-0882
DONIT43.10.158
FIAAMFT 4828
FIAAMFT 4828 A
FLEETGUARDLF-3736
FLEETGUARDLF-3758
FLEETGUARDLF-4015
FLEETGUARDLF-764
FRAMPH-2800
FRAMPH-2800-1
FRAMPH-2857 A
FRAMPH-2861 A
FRAMPH-2861 B
GIESSECLH 85/1
GIF FILTERGL 249
GKN MASTERPARTSMOF 11 X
GKN MASTERPARTSMOF 3 X
GKN MASTERPARTSMOF 68 X
GREYFRIARS901 S
GUIOTGH 2800
HENGSTH 10 W 06
HENGSTH 13 W
HENGSTH 13/1 W
KNECHTFO 373/2
KOMATSUZ14OF10422
KRALINATORL 65 A
LAUTRETTE - MECAFILTERELH 4092
LAUTRETTE - MECAFILTERELH 4171
LUBER - FINERLFP 2215
LUBER - FINERPH 2820-A
LUCASEDL 206
M FILTERMH 330
MAHLEOC 204
MANITOU107 580
MAPCO61083
MFIW 920/26
MOTAQUIP AAPCOVFL 115
MOTAQUIP AAPCOVFL 166
MOTAQUIP AAPCOVFL 299
MOTORCRAFTBFL 041
MOTORCRAFTEFL 056
OPEL3 430 499
OPEL650 354
OPEL709
OPEL650 356
OPEL650 367
PERMATIC MECAFILTERELH 4092
PERMATIC MECAFILTERELH 4171
PERMATIC MECAFILTERGL 249
POWERTRAINPMFL 71
PUROLATORL 17019
PUROLATORPC 26
PUROLATORPC 265
RYCOR4P
RYCOZ89A
SAVARA2642/30
SAVARA9.28.007.11
SAVARASO 256
SAVARASO 603/1
SOPARISCV 325
TECALEMITFB 2070
TECALEMITFB 5457
TECNECOOL 41
TECNOCARR 18
TECNOCARR 60
TECNOCARR 62
TEHO FILTEROK 32
TEXACOTE 111
TJ FILTERSFB 2059
TJ FILTERSFB 2070
TUTELA WEBER2
UFI23 127 00
UFI23 134 01
UFI23 257 00
UNICOLI 995/22
UNICOLI 996/12
UNIPARTGFE 121
UNIPARTGFE 207
VAUXHALL650367
VAUXHALL7984235
VAUXHALL7984718
VOLVO1266286
VOLVO1266286-2
VOLVO1266388
VOLVO418432
VOLVO418432-1
VTE92 AP
WIXWL7124
WOODGATEWGL 764
From GermanFilters.com

And specifically Mann equivalents:

UNIPARTGFE 121W 712/80
  W 714/2
  W 917/1
  W 920/21
  W 1126
CHAMPIONC 102W 712/80
  W 917/1
  W 920
  W 920/17
  W 920/21
  W 920/23
  W 930
  W 930/7
  W 930/9
Dimensions
 ABCGHbarR
W 712/807662713/4-16 UNF800.81
W 714/27662713/4-16 UNF791.52
W917/19362713/4-16 UNF851.11
W 9209362713/4-16 UNF952.51
W 920/69362713/4-16 UNF9511
W 920/179362713/4-16 UNF95--
W 920/219362713/4-16 UNF950.81
W 920/239362713/4-16 UNF951.6-
W 9309362713/4-16 UNF1142.51
W 930/79362713/4-16 UNF1141.6-
W 930/99362713/4-16 UNF1140.61
W 112610862713/4-16 UNF950.81
AOverall width
BInner diameter of seal
COuter diameter of seal
GThread
HOverall height
barBypass valve opening pressure (where present)
RNumber of anti-drainback valves
Notes:
  • Unipart and Champion filters are 4" or 100mm overall height
  • Always use a filter with both bypass and anti-drainback valves
  • The specified bypass pressure for the MGB is 13-17psi, or 0.896 to 1.172bar, a filter should be selected that falls within this range.