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1225963 | Caterpillar 3500 Intake Seat (STD)

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Pricing: $19.70

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When it comes to Intake Seats, 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 Intake Seats 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 1-year warranty and technical expertise from HHP’s certified staff, and you’ve got a quality Intake Seat that will keep you running for another million miles.

Need a little extra proof? Let's talk shop.

  • Give your engine a longer engine life with a brand new Intake Seat made to OEM specifications.

  • Not only will your engine get the perfect fit, you'll also get equal or better quality compared to the OE at a much lower price.

  • To top it off, our Intake Seats come from an ISO 9001 certified facility. Simply put, you'll get quality and consistency you can count on.


  • (1) Intake Seat (STD)


1-Year, Unlimited Mileage, Parts and Labor Warranty
OEM Applications:
  • 1225963
  • CAT 122-5963
  • CAT1225963

Technical Data

3500 Engine Specifications:
Year: -
Liter: 34.5
CID: 2105
Cyl: V 8
Bore/Stroke: 6.6929-6.6949"
Compression Ratio: -
Firing Order: -
Comments: Diesel 2,105 CID: 34.5L

Tune-Up Specifications:
Intake Valve Lash: .015" Cold
Exhaust Valve Lash: .030" Cold

Valve Seat Specifications:
Seat Angle: Intake- 29.75-30.75° Exhaust-29.75-30.75°
Seat Outside Diameter: Intake- 2.3663-2.3675"Exhaust- 2.3663-2.3675"
Seat Inside Diameter: Intake- 2.113-2.229" Exhaust- 2.113-2.229"
Seat Insert Bore Diameter: Intake- 2.3612-2.3632" Exhaust-2.3612-2.3632"
Seat Insert Bore Depth: Intake- .545-.557" Exhaust-.545-.557"


  • P203473
  • P203473
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 0.2 lbs.
  • W2.3800” x H1.5000” x L3.6300”

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