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7N1903 | Caterpillar 3500 Inner Valve Spring

Pricing: $1.98

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When it comes to Inner Valve Springs, 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 Inner Valve Springs 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 Inner Valve Spring that will keep you running for another million miles.

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

  • Get quality and consistency you can count on from an ISO 9001 certified facility.

  • You get the same quality or better as the OEM at a much lower cost.

  • Made to OEM specifications so your engine will get the perfect fit!

  • This part is brand new so you get the longest life possible out of it.


  • (1) Inner Valve Spring


1-Year, Unlimited Mileage, Parts and Labor Warranty

OEM Applications

  • 7N-1903
  • 7N1903
  • CAT7N1903

Technical Data

3500 Engine Specifications:
Year: -
VIN: -
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 Spring Specifications:
Inner Spring:
Free Length: Intake- 2.030" Exhaust- 2.030"
Installed Height: Intake- 1.790" Exhaust- 1.790"
Open Test Press: Intake- 86# at 1.230 Exhaust- 86# at 1.790
Close Test Press: Intake- 25-31#at 1.790 Exhaust- 25-31# at 1.790



  • P203517
  • P203517
  • IMB
  • New

Shipping Information

  • Item Requires Shipping
  • 0.6 lbs.
  • W6.0000” x H0.5000” x L3.5000”

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