OIL FILTERS which can be used with the original canister mount:

AC 32A all paper	Crosland 418 metal ends	Napa 1300 metal shell

MGA Service Parts List original number - 8G683
Filter Dimensions (from the Crosland book):
OD=71.43mm (2.81in)   ID=33.06mm (1.32in)   Height=102.93mm (4.05in)

Moss Motors lists:
    Crosland brand paper filter - 435-355 - Obs No. refers to late TD & TF (same as MGA & early MGB).

Felt Oil Filter Element No End Caps

    Crosland brand felt filter - 950-010
    Various makers felt filter - 950-510
    Crosland brand paper filter - 950-030
    Various makers paper filter - 950-530

Victoria British lists:
    Unspecified brand felt filter - 3-104
    Unspecified brand paper filter - 3-121

AC - 32A (two sealing rings included)
AutoPartsWarehouse.com - A6000-43179 (Crosland filter)
Baldwin - P172
Beck/Arnley - 041-8069 (this is currently a Crosland 418)
British Leyland - MF21
Crosland - 418 (paper over paper)
ExpressAutoParts.com - A6000-43179 - (Crosland filter)
Fram - CH814PL --- 110mm (4.331") long, too long, cannot be assembled.
Fram - CH816 --- 92mm (3.622") long, too short, but may work.
Hastings - P172 (obsolete part)
NAPA Gold - Fil1300 (metal over paper construction, three sealing rings included)
M.G. - GFE102 (paper filter)
MAK - MO5109 (1/2 inch taller)
Purolator - L20021
Purolator - MF21 (old part number)
Specialists Choice - MF21
ThePartsBin.com - A6000-43179 - (Crosland filter)
TJ or Tecalemit - FG2471 (felt type, made in Great Britain)
TJ or Tecalemit - FP3317 (paper type, made in Great Britain)
Unipart - GFE102* (paper over paper construction)
Unipart - GFE218* (felt media construction)
Wix - 51300 (metal over paper construction, three sealing rings included)

* Unipart may have various vendors' filters in their box.
There are hundreds of cross reference numbers for various manufacturers and applications, but not all are equal. In particular, length can vary, and 110-mm (4.312-in) definitely does not fit into the original MGA/MGB/Magnette canister.

APPLICATIONS: 

AUSTIN 	MINI (850) 	1960,1963 	L4 0.8L 	
AUSTIN HEALEY SPRITE 	1958-1962 	L4 0.9L 		
HEALEY 	75 			
INTERNATIONAL HARVESTER 	A-55 			
LANCIA 	APPIA 	1953-1964 	V4 1.1L  (Use Lancia gasket)
LEYLAND 	1.5 LITRE 	1961-on
LEYLAND 	10/42, 10/60, 10/62 			
LEYLAND 	154 W/1.5L DIESEL ENGINE 			
LEYLAND 	2.2 LITRE	1965-on
LEYLAND 	3.4 LITRE 	1962-on
LEYLAND 	3.8 LITRE 			
LEYLAND 	4DM 3-8L W/FROM S/N 4300 			
LEYLAND 	CAPTAIN DIESEL 1.5L 	
LEYLAND 	COMMODORE 3.4L 	1963-on			
LEYLAND 	MINI TRACTOR W/948CC DIESEL ENGINE 1965-on
LEYLAND 	MINI TRACTOR W/948CC GAS ENGINE 			
LEYLAND 	NAVIGATOR GAS 1500CC 			
LONG 	4/25 			
LOTUS 	ELAN 	1962-1963,1965-1967 	L4 1.6L 	
LOTUS 	ELEVEN 	1957 		L4 1.1L, L4 1.2L 
LOTUS 	SEVEN 	1957-1959,1961 	L4 1.2L, L4 1.3L 	
LOTUS 	SUPER SEVEN  1958-1967	L4 1.1L, L4 1.3L, L4 1.5L 	
MG 	MGA 	1955-1962 	L4 1.5L, 1.6L  	
MG 	MGB 	1962-1970 	18G-18GB, 18GF-18GH Engines (Cartridge)
MG 	TD from (e)14224 - TF	L4 1.3L, 1.5L 	
MG 	ZA, ZB 	1954-1958 	L4 1.5L 	
SAME 	DA952