This page exists to post bearing number cross references that I may help to look up from time to time. I only post it here because I have spent some significant time on such research occasionally, and as long as the information is in hand it may as well be posted rather than tossed out. The page could obviously become quite long with time, as nearly every bearing used in the MGA is a standard bearing that may have multiple manufacturers. If the bearing you have in mind is not posted here, then see the prior page for the method of discovering bearing cross reference numbers. In case you do look up more cross reference numbers, you may forward them to me, and I will endeavour to post them here to share the fruits of your efforts with others. The first number listed will be the MG or BMC or Austin factory part number as listed in the MG Service Parts List.

2A457 - Bearing, water pump, 1500 (2x) - Fin. (E) GB39364 except 39401 to 39525
1H1153 - Bearing, water pump, 1500 (1x) - Com. (E) GB39365 except 39401 to 39525
1H1153 - Bearing, water pump, 1600 (1x) - Fin. (E) 16GA/H31660

8G698 - Seal, water pump, all 1500, 1600 (8G698 not available use 13G772)
13G772 - Seal, water pump, all 1500, 1600 (8G698 not available use 13G772)

AEF136 - Bearing, water pump, Twin Cam (2x)
Bearing sizes are: 37x12x12 (mm).
For the purists it is R&M 4MJ12,
For normal ones: 6301. (Can use shielded 6301.2ZR).

AEB156 - Seal, water pump, Twin Cam
REPCO, PR3823 (Australia, NLA)
PBR GROUP, PBR 4123 (Australia, NLA)

2K7140 - Ring-crankcase front cover (felt) - all except Twin Cam, Fin.(E)16GC/8262
2A939 - Seal-oil-crankcase front cover (rubber) Com.(E)16GC/8263 - see CS-100A
99156 - Speedi-Sleeve for crankshaft pulley, all MGA except Twin Cam - CS-100A
AEJ5 - Oil seal, timing cover, Twin Cam - see TC-323
99174 - Speedi-Sleeve for crankshaft pulley MGA Twin Cam - TC-323

88G621 - Oil seal, crankshaft rear, 1965-1985 MGB - see PP-201C
Used when installing MGB 5-main bearing engine in the MGA
99347 - Speedi-Sleeve for crankshaft rear MGB 5-main bearing engine - PP-201C

1G2398 - Seal, engine tach drive pinion (O-ring), MGA 1500, 1600, Twin Cam,
Also MGB thru 1964.
Shaft=5/16" - Housing=9/16" - width=11/32" - see CM-109
(Can use 2A3254 or NKC105A speedo drive seal) - see GT-106A

1H1049, 12H18, 12H433 - Gasket (Joint), cylinder head, MGA 1500, 1600, 1622
AEH548 - Gasket (Joint), cylinder head, MGA Twin Cam
12H433 ? - Gasket (Joint), cylinder head, MGB
See CH-116

6K8985 - Bearing, GB input shaft, 1500 - (with external groove and retaining ring)
97H512 - Bearing, GB input shaft, 1500 Com. (G) A1861, Fin (G) MS8010
6K885 - Bearing, GB input shaft, 1500 Com. (G) MS8011, all 1600 and Twin Cam - see list at GT-117A

6K528 - Bearing - GB 3rd motion shaft - all 1500, 1600, Twin Cam - see GT-117B

1G3418 - Bush, GB extention, 1500 - Fin. (E) GB51767
1.375" ID x 1.500" OD x 2.750" Long -- (See substitute part at GT-104)
6K529 - Bearing, GB extention, 1500 - Com. (E) GD101, all 1600, Twin Cam - see GT-117C

1H3138 - Seal, GB front - late 1500 Com. (G) A8011, also 1600, Twin Cam
- see GT-115
22H475 - Seal, GB front - 1600 - (change number - 1H3138 not available use 22H475)
- see GT-115

11D3147 - Seal, GB rear - early 1500 - see GT-111
1H3339 - Seal, GB rear - mid 1500 GB Com. (G) A101 - see GT-111B
1H3275 - Seal, GB rear - late 1500 GB Com. (G) GD101, plus all 1600, 1600-MK-II, Twin Cam, early MGB, and Z-Magnettes - see GT-111C

2A3254 - Seal, GB pinion, speedo drive - MGA 1500, 1600, Twin Cam,
Also MGB thru 1967 -- Superseded by NKC105A
shaft=5/16" - housing=9/16" - width=11/32" - see GT-106A
Can use in place of 1G2398 for Tachometer Drive Seal

2A7213 - Bearing - bevel pinion front, 1500, 1600, Twin Cam - see RA-114
6K287 - Bearing - bevel pinion rear, 1500, 1600, Twin Cam - see RA-115
ATA7047 - Seal - differential front, 1500, 1600, Twin Cam - see RA-116
88G320 - Seal - differential front - (part no. change; was ATA7047- see RA-116
99150 - Speedi-Sleeve - differential front - see RA-116

2K8938 - Bearing - differential carrier, 1500, 1600, Twin Cam - see RA-113
2K6544 - Bearing - differential carrier (alternative), Twin Cam

2K7477 - Bearing - rear hub, 1500, 1600, Twin Cam - see RA-112
8G555 - Seal - rear hub, 1500, 1600, Twin Cam (and "Deluxe") - see RA-112A
Also front hub, Twin Cam (and "Deluxe")
99193 - Speedi-Sleeve - rear hub - see RA-112A

ACF4000 - Bearing - front hub outer, 1500/1600 - see FS-112B
ACF4002 - Bearing - front hub inner, 1500/1600 - see FS-112B
ACF4004 - Seal - front hub, 1500/1600 - see FS-131

1B4399 - Bearing - front hub inner, Twin Cam (N/A; use BTC280) - see TC-212
BTC280 - Bearing - front hub inner, Twin Cam (alternate part number) - see TC-212
ATB4238 - Bearing - front hub outer, Twin Cam - see TC-212
8G555 - Seal - front hub, Twin Cam - see TC-213

8G3000 - U-joint for Propshaft - see PS-103
8G8186 - U-joint for Propshaft (later number) - see PS-103

ACH6168 - Ball socket (Tie Rod End) all MGA - see SR-109A
17H3873 - U-joint for Steering - see SR-117
GUJ200 - U-joint for Steering (later number) - see SR-117