Cummins Parts Direct

Cummins Parts Direct

Diesel Specialists, LLC has thousands of Cummins parts in stock.

855.470.3525 (U.S.)
225.706.4855 (Int.)
Monday-Friday 7am-5pm CST

855.470.3525 (U.S.)
225.706.4855 (Int.)
Monday-Friday 7am-5pm CST

Cummins 4BT/6BT Long Blocks

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Cummins 4BT/6BT Long Block

We carry long blocks for Cummins 3.9 and 5.9 liter engines. For your convenience, you can access our inventory through the product links listed below.

If you do not see the B Series part you need, please use our quote request form or call us at 855.470.3525: our friendly sales staff will gladly help you.

DS-LB6BT

LONG BLOCK - 6BT
$7,159.83 Qty:

DS-LB4BT

LONG BLOCK - 4BT
$6,270.40 Qty: