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3215746 | Caterpillar 3406E/C15 Standard Main Bearing

Pricing: $27.51

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When it comes to Main Bearings, why risk your engine?

Don't let a small part turn into a major repair. We wouldn't risk putting sub-par parts into our engines, so why should you?

HHP only sells Main Bearings that are manufactured in a state of the art facility using top of the line machining and measuring equipment to ensure each part is manufactured to OEM specifications. Combine this with up to 50% off OEM prices, an industry leading 2-Year Parts and Labor Warranty and technical expertise from HHP’s certified staff, and you've got a quality Main Bearings that will keep you running for another million miles.

Need a little extra proof? Let's talk shop.
  • Our Main Bearings are built to OEM specifications, giving you proper fit and function. You'll also save up to 50% off OEM prices!
  • Worried about quality? With HHP, you'll receive equal or better quality compared to the OE at a much lower cost.
  • Built with hard-wearing materials for long-lasting strength and durability.
  • Each Connecting Rod is manufactured and assembled in an ISO 9001: 2008 certified facility. This ensures quality and consistency with every part.
  • We have ASE certified techs on staff to answer technical questions. You'll be back up and running in no time.


  • (1) STD Main Bearing


2-Year Parts and Labor Warranty

OEM Applications:

  • 8N-5421
  • 4W5492
  • 8N5421
  • 3178766
  • 6N3909
  • 1W6589
  • 4W-5492
  • 6N-8743
  • 1W-6589
  • 2110592
  • 1N3542
  • 321-5746
  • 217-0390
  • 1N-3542
  • 211-0592
  • 117-5975
  • 3215746
  • 1175975
  • 2170390
  • 6N8743

Technical Data

Fits Applications:
Caterpillar 3406E Engine Specifications:
Year: 1993-2005
Liter: 14.6
CID: 893
Cylinder: L 6
Bore/Stroke: 5.400-5.402", 6.500"
Compression Ratio: 14.5:1
Firing Order 1-5-3-6-2-4

Tune-Up Specs:
Compression Ratio: 174.5:1
Firing Order: 1-5-3-6-2-4
Intake Valve Lash: .012-.018" cold
Exhaust Valve Lash: .027-.033" cold

Caterpillar C15 Engine Specifications:
Year: 1999-2007
Liter: 15.2
CID: 928
Cylinder: L 6
Bore/Stroke: 5.4000-5.4020", 6.7320"
Firing Order: 1-5-3-6-2-4

Tune-up Specifications
Firing Order 1-5-3-6-2-4
Intake Valve Lash .015" (.381 MM)
Exhaust Valve Lash .030" (.762 MM)


Shipping Information

  • Item Requires Shipping
  • 1.3 lbs.
  • W2.2500” x H3.8120” x L5.5000”

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