Sprinter 3500 V6-3.0L DSL Turbo VIN 45 (2007)
Crankshaft Main Bearing: Service and Repair
INSTALLATION
CRANKSHAFT MAIN BEARINGS
Each color-coded bearing is matched to its respective journal for the best fit possible (select fit). In production, the select fit is obtained by matching the
color-coded bearings to grade identification marks on the cylinder block and crankshaft. Letters marked on the cylinder block identify the color of each
upper-half main bearing, while letters marked on the front end of the crankshaft indicate the color of each lower-half main bearing. A group of four
letters located on the machined surface of the cylinder block, above the engine identification number, identifies the upper-half main bearings installed.
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The letter "B" indicates a blue bearing
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The letter "G" indicates a yellow bearing
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The letter "R" indicates a red bearing
The front end of the crankshaft is engraved using laser marking technology. A group of letters identifies the color of each lower-half main bearing.
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The letter "B" indicates a blue bearing
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The letter "G" indicates a yellow bearing
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The letter "R" indicates a red bearing
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The letter "W" indicates a white bearing
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The letter "V" indicates a violet bearing
Check the grade identification marks on the cylinder block and crankshaft to properly select the main bearings. For example, if the crankshaft has the
letter "B" in position No.2 and the cylinder block has the letter "R" in position No.2, the proper select bearing color code is red for the upper main
bearing and blue for the lower main bearing.
