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8N6796 | Caterpillar 3306DI Cylinder Head, New

P014059, 8N6796L, 8N6796C, 8N6796, 8N-6796, 7N8876, 7C4006, 7C3906, 7C-4006, 7C-3906, 1W3356, 1W-3356, Cylinder Head, Cylinder, Head, Cat, Caterpillar, Cat Cylinder Head, Cat Head, Caterpillar Cylinder Head, Caterpillar Head, 3306, 3306DI, Caterpillar 3306DI, Caterpillar 3306DI Cylinder Head, DI. D.I. 3306 Head, 3306 Cylinder Head, Cat 3306 Cylinder Head, Caterpillar 3306 Cylinder Head

Shipping: Free shipping applies to commercial addresses within the continental United States only. Freight carriers charge an additional $100.00 for residential addresses.
Pricing: $1,700.00

Customize Your Item



Is your Cylinder Head in it for the long haul?

We all know in order to get a million of miles out of your engine you need to keep your engine cool, well lubricated, and perform regular maintenance. Let one of these slip... and your rig is going to wind up in the shop with you stuck waiting for the repair.

It's no secret that diesel engine parts can cost an arm and a leg. That’s where HHP steps in; we offer premium aftermarket parts at up to 50% off OEM prices. While most believe aftermarket retailers sell cheap parts with zero warranty, packed in a beat-up box from who knows where, HHP is here to kick that stereotype to the curb. HHP provides Cylinder Heads with additional engine cooling properties and a 1-year warranty. How’s that for an aftermarket part?

Need a little extra proof? Let's talk Cylinder Heads.

  • Get superior strength with a brand new cylinder head made of cast iron.

  • Each cylinder head is made to OE specifications and has no core charge, saving you more!

  • Pre-loaded with valves and pre-combustion chambers, which also includes guides, springs, seats, seals and cups to help you go a million more miles.

  • Assembled in the USA and made ready to install to help save you time!

  • Replace your worn out cylinder head with a new one to ensure excellent valve movement control and air flow.

  • Trust the experts at HHP. Simply put, you'll get equal or better quality compared to the OE at a much lower price.


  • (1) Cylinder Head


1-Year Warranty
OEM Applications:
  • 1W-3356
  • 1W3356
  • 7C-3906
  • 7C-4006
  • 7C3906
  • 7C4006
  • 7N8876
  • 8N-6796
  • 8N6796
  • 8N6796C
  • 8N6796L

Technical Data

Fits 3306DI

3306DI Engine Specifications:
Year: 0-0
Liter: 10.5
CID: 638
Cylinders: L 6
Bore/Stroke:4.751-4.752", 6.000"
Compression Ratio: -
Firing Order: -
Comments: Diesel Scroll Fuel, SP BLK, DI HD, 7Z, 9Z, 12Z

Intake Valve Lash: .015" Cold
Exhaust Valve Lash: .025" Cold
Cylinder Head Torque: 115,175,175 FT/LBS ----> 3/8 BOLTS: 22,32,32 FT/LBS

Cylinder Head Specifications:
New Thickness/Measured At: 3.940"
Minimum Thickness: 3.895"

Valve Information:
Stem Diameter: Intake- .3712-.3722" Exhaust-.3717-.3722"
Head Diameter: Intake- 2.020" Exhaust- 1.896"
Angle: Intake- 29.5°Exhaust- 29.5°
Margin: Intake- .106" Minimum Exhaust- .106" Minimum
Recession: Intake- .006-.036" V/REC Exhaust- .026-.056" V/REC

Valve Guide Information:
Guide Height: Intake-.875" ABV SPR PADExhaust- .875" ABV SPR PAD
Guide Clearance: Intake- .3766" Max Guide I.D. BoreExhaust- .3766" Max Guide I.D. Bore

Valve Seat Information:
Seat Width: Intake- .045-.076" Exhaust- .045-.076"
Seat Angle: Intake- 30°Exhaust- 30°
Seat Outside Diameter: Intake- 2.1285" Exhaust-2.0035"
Seat Insert Bore Diameter: Intake- 2.1255"Exhaust- 2.0005"
Seat Insert Bore Depth: Intake- .449" Exhaust-.449"

Valve Spring Information:
Outer or Single Spring:
Free Length: Intake-2.050" Exhaust- 2.050"
Installed Height: Intake- 1.766"Exhaust-1.766"
Open Test Press: Intake- 144# at 1.271 Exhaust-144# at 1.271
Close Test Press: Intake- 54-60# at 1.766 Exhaust- 54-60# at 1.766


  • P014059
  • P014059
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 200.0 lbs.
  • W42.0000” x H24.0000” x L48.0000”
  • Free shipping applies to commercial addresses within the continental United States only. Freight carriers charge an additional $100.00 for residential addresses.

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