A-MB634-30-AI Bearing Set, Main (.030", set of 3)

One New Aftermarket Replacement Main Bearing Set (.030" Oversize, Set of 3) for Ford / New Holland Tractors

This .030" oversize crankshaft main bearing set is used during engine rebuilds when the main journals have been ground undersize. Designed for Ford and New Holland 4-cylinder gas, LP, and diesel engines (134 CID, 172 CID, and 192 CID), this set supports the crankshaft main journals and is a direct replacement for OEM part numbers C0NN6342C and C0NN6331E. The set includes 3 bearings: 1x C0NN6342C (center/thrust) and 2x C0NN6331E (end journals). Specify oversize when ordering to ensure correct journal clearance.

Specifications

• Oversize: .030" (2.468" undersize main journal)
• Quantity: Set of 3 bearings
• Engine Types: 134 CID Gas, 172 CID Gas, 172 CID Diesel, 192 CID Gas, LP, and Diesel 4-cylinder

Compatible Models

Ford / New Holland Tractors (1953-1964): Golden Jubilee, Jubilee, NAA, NAB, 501, 541, 600, 601, 611, 620, 621, 630, 631, 640, 641, 650, 651, 660, 661, 671, 681, 700, 701, 740, 741, 771, 800, 801, 811, 820, 821, 840, 841, 850, 851, 860, 861, 871, 881, 900, 901, 941, 950, 951, 960, 961, 971, 981, 2000 (4-cylinder), 2031, 2110, 2111, 2120, 2131, 4000 (4-cylinder), 4031, 4110, 4120, 4121, 4131, 4140

Ford / New Holland Tractors (thru 1967): 6000, 6000 Commander, 6100 (233 CID and 242 CID Gas, LP, Diesel engines)

Ford Industrial: 1801, 1811, 1821, 1841, 1871, 1881, 2030, 2130, 4030 (4-cylinder), 4040, 4130 (4-cylinder) (1953-1964; 134", 172", 192" Gas, LP, Diesel)

Replaces Part Number(s):

C0NN6342C, C0NN6331E, MB634-30, A-MB634-30-AI, MB634-30-AI

Aftermarket Interchange Numbers

MB634-30, MS466P30, AMB63430

New aftermarket replacement part - not remanufactured, not used.