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Caterpillar 3406B (Square Exhaust Port) Remanufactured Cylinder Head

  • Availability:
  • Part Number: H0R3674
  • OEM Number: 0R3674
  • Brand: Agkits
    Brand Info x Close Agkits
This item has a $140 handling charge (added in checkout).

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Engine Serial Number
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Once your order is placed, we will verify the serial number you provide to ensure every part will work for your application.

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$3,375.00

WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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With warehouses across the US, we ship quickly and efficiently.

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Expert tech advice before and after your purchase.

High Quality Parts
Our parts meet and exceed the OEM specifications.

Details:

Price Reflects Refundable $500.00 Core Charge

Industrial Cylinder Head
Direct Injection

Note: This 3406B head features square exhaust ports. If your engine has round exhaust ports, you will need to order a 3406C cylinder head. It is common for engine owners to upgrade from the 3406B (square exhaust port style head) to the 3406C (round exhaust port style).

Casting ID - 7W0006, 7W0009, 7W2200
Reference # 4W2436, 7W2203

Cylinder Head Repair Process
  • Magnafluxed to detect cracks
  • Cracked Heads are Furnace Welded
  • Under lower limit heads are Thermal Casted
  • 100% Air Decay and Wet Tested
  • All threads are chased
Finish Machining and Assembly
  • New guides and injector tubes installed
  • Decks are Surface Ground
  • Seats are machined and vacuum tested
  • Components are inspected to O.E.M standards
  • New springs, keepers and retainers installed
  • Sealed with rust preventative