Cummins Engines
Cummins B Series 3.9L Crankshafts
1 product
Shop Cummins B Series 3.9L crankshafts at Internet Diesel. This collection has 1 part for the Cummins B Series 3.9L, sold from our Los Angeles warehouse and shipped nationwide.
About Cummins B Series 3.9L crankshafts
Every main and rod bearing in the engine rides on the crankshaft, so its journals have to be straight, round and to size. A spun bearing, low oil pressure or a cracked journal is usually what sends a crank to the scrap pile and makes a replacement the faster fix.
Cummins B Series 3.9L crankshafts in this collection
Fitment and ordering
To make sure you get the right part, match it to the engine serial number (ESN) and CPL number before ordering. If you are not sure, call our parts team at 1-800-562-0360 with your engine information and we will confirm fitment.
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