Main bearing set illustration – not the actual part
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Main bearing set illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Caterpillar3000 SeriesMain Bearings

DS-7W-4589 Main Bearing Set For 3056 And 3056T Caterpillar Engines

(Standard, 7 Pairs)

OEM #: 7W4589SKU: DS7W4589

Ships in 1-2 days

$106.96 $121.54

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

The DS-7W-4589 standard main bearing set consists of seven pairs of main bearings and can be used in the following Caterpillar engine models:

  • 3056 with an engine serial number of 1ML1 and above or 7MS1 and above
  • 3056E turbocharged with an engine serial number of CPT1 and above
  • 3056 turbocharged with an engine serial number of 1ML1 and above or 7MS1 and above
SKU DS7W4589
OEM Number 7W4589
Part Type Main Bearings
OEM Brand CATERPILLAR

Aftermarket warranty

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  • Orders are processed the same or next business day
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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.