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MGA Part Numbers - 8G2175
Main bearing Set (late 1500, early 1600)
PART NO.  SPL.PAGE  DESCRIPTION                                                                   
8G2081    15.A.1    Main bearing (standard) (set) [-changed to 8G2175 Com.(e)GB3511
8G2081    sup.A.1   Main bearing (standard) (set) [-changed to 8G2175 Com.(e)GB3511
8G2175    15.A.1    Main bearing (standard) (set)   -Com.(e)GB3511 -was 8G2081
8G2175    sup.A.1   Main bearing (standard) (set)   -Com.(e)GB3511 -was 8G2081
8G2175    16.A.3    Bearing -main -standard (1 set) -(crankshaft, engine unit, 1600)-
    changed to 8G2288 Com.(E)16GA/H21805
8G2257    TC.A.2    Bearing -crankshaft main (standard) (set) -(crankshaft, Twin Cam)
8G2257    TC3.A.5   Bearing -crankshaft main (standard) (set) -(crankshaft, Twin Cam)
8G2288    16.A.3    Bearing -main -standard (1 set) -(crankshaft, engine unit, 1600)-
    Com.(e)16GA/H21805 -(was 8G2175) -Fin.(e)16GA/H31660
8G2323    16.A.24    Bearing -main (standard) (1 set) -(crankshaft, engine unit, 1622)
One set of main bearing half shells (6-pcs) for Austin B-Series engines.
8G2081 main bearing set 8G2081 main bearing set
 Undersize Main Bearing Shells:
PART NO.  SPL.PAGE  DESCRIPTION                                                                   
8G208110  15.A.13   Bearing set -main -.010 U/S -Fin (E) GB3510
8G208120  15.A.13   Bearing set -main -.020 U/S -Fin (E) GB3510
8G208130  15.A.13   Bearing set -main -.030 U/S -Fin (E) GB3510
8G208140  15.A.13   Bearing set -main -.040 U/S -Fin (E) GB3510
8G217510  sup.3    Bearing -main -.010" (.254mm) U/S (1 set) -(crankshaft, eng.unit, sup)
8G217510  16.A.3    Bearing -main -.010" (.254mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -changed to 8G228810 Com.(E)16GA/H21805
8G217520  sup.3    Bearing -main -.020" (.508mm) U/S (1 set) -(crankshaft, eng.unit, sup)
8G217520  16.A.3    Bearing -main -.020" (.508mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -changed to 8G228820 Com.(E)16GA/H21805
8G217530  sup.3    Bearing -main -.030" (.762mm) U/S (1 set) -(crankshaft, eng.unit, sup)
8G217530  16.A.3    Bearing -main -.030" (.762mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -changed to 8G228830 Com.(E)16GA/H21805
8G217540  sup.3    Bearing -main -.040" (1.016mm)U/S (1 set) -(crankshaft, eng.unit, sup)
8G217540  16.A.3    Bearing -main -.040" (1.016mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -changed to 8G228840 Com.(E)16GA/H21805
8G228810  16.A.3    Bearing -main -.010" (.254mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -Com.(E)16GA/H21805 -(was 8G217510)
8G228820  16.A.3    Bearing -main -.020" (.508mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -Com.(E)16GA/H21805 -(was 8G217520)
8G228830  16.A.3    Bearing -main -.030" (.762mm) U/S (1 set) -(crankshaft, eng.unit,
    1600) -Com.(E)16GA/H21805 -(was 8G217530)
8G228840  16.A.3    Bearing -main -.040" (1.016mm)U/S (1 set) -(crankshaft, eng.unit,
    1600) -Com.(E)16GA/H21805 -(was 8G217540)
8G232310  16.A.24    Bearing -main .010" (.254mm) u/s (1 set) -(engine unit, 1622)-
    changed to 8G233510
8G232320  16.A.24    Bearing -main .020" (.508mm) u/s (1 set) -(engine unit, 1622)
8G232330  16.A.24    Bearing -main .030" (.762mm) u/s (1 set) -(engine unit, 1622)-
    changed to 8G233530
8G232340  16.A.24    Bearing -main .040"(1.016mm) u/s (1 set) -(engine unit, 1622)-
    changed to 8G233540
8G233510  16.A.24    Bearing -main .010" (.254mm) u/s (1 set) -(engine unit, 1622)-
    was 8G232310
8G233530  16.A.24    Bearing -main .030" (.762mm) u/s (1 set) -(engine unit, 1622)-
    was 8G232330
8G233540  16.A.24    Bearing -main .040"(1.016mm) u/s (1 set) -(engine unit, 1622)-
    was 8G232340
Note: When changing numbers from 8G2323xx to 8G2335xx
there was no factory part number 8G233520 for 0.020" u/s bearings in the final number series.

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