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Multiple options, conditions, or variants are available for this item.
Main Bearing Set3 Main Bearing Set
Standard
$4672
David Brown Main Bearing Kit  AD4/49, AD4/55 K928554, K928554X6 0.25MM  4 Cyl0 David Brown Main Bearing Kit AD4/49, AD4/55 K928554, K928554X6 0.25MM 4 Cyl
.010"
$4747
David Brown Main Bearing Kit  AD4/49, AD4/55 K928555(X6), K928555X6 0.50MM1 David Brown Main Bearing Kit AD4/49, AD4/55 K928555(X6), K928555X6 0.50MM
.020"
$4747
Main Bearing Set0 Main Bearing Set
.030"
$4299
Main Bearing Set0 Main Bearing Set
.040"
$19147
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Fitment Guide

Backhoe Loaders (1)
David Brown 580G
Tractors (11)
Case & Case-IH 1210
Case & Case-IH 1212
Case & Case-IH 1290
Case & Case-IH 1294
Case & Case-IH 1390
Case & Case-IH 1394
Case & Case-IH 990
Case & Case-IH 995
Case & Case-IH 996
David Brown 1200
David Brown 990
Trenchers (1)
Case & Case-IH DH7
Engines (8)
David Brown AD4/55T | Turbocharged, 2.500" Crank Journal Diameter
4-cyl • Diesel
David Brown AD4/55 | 2.376" Compression Distance
4-cyl • Diesel
David Brown AD4/55 | 2.376" Compression Distance
4-cyl • Diesel
David Brown AD4/55 | 2.376" Compression Distance
4-cyl • Diesel
David Brown AD4/49 | 2.626" Compression Distance
4-cyl • Diesel
David Brown AD4/49 | Dry Sleeves, 2.626" Compression Distance
4-cyl • Diesel
David Brown AD4/49 | Dry Sleeves, 2.626" Compression Distance
4-cyl • Diesel
David Brown AD4/47 | Wet Sleeves, 8.076" Sleeve Length
4-cyl • Diesel
While every effort has been made to ensure the accuracy of the fitment information listed above, it is ultimately the responsibility of the installing mechanic to perform a side-by-side comparison of the replacement part with the original to verify proper fit before installation. RF Engine is not liable for labor or consequential damages resulting from incorrect application.

All specifications and numbers are provided for reference only and should be independently verified before use. While we guarantee our parts match their descriptions and accept returns for any discrepancies, we cannot be held liable for installation costs, modifications, or consequential damages. Questions about compatibility? Contact our parts experts at 800-828-6943, sales@dieselcranks.com, or via live chat, Mon-Fri 8am-5pm EST.