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4W2471 | Caterpillar 3406/B/C Outer Valve Spring

Pricing: $3.27

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When it comes to Outer 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 Outer 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 2-year warranty and technical expertise from HHP’s certified staff, and you’ve got a quality Outer Valve Spring that will keep you running for another million miles.


2-Year Warranty
OEM Applications:
  • 3807413
  • 4W-2471
  • 4W2471

Technical Data

Dual Spring

3406 Engine Specifications:
Year: 0-0
Liter: 14.6
CID: 893
Cylinders: L 6
Bore/Stroke: 5.400-5.402", 6.500"
Compression Ratio: 425 LBS
Firing Order:1-5-3-6-2-4
Comments: Diesel 92U->

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

Valve Spring Specifications:
Outer or Single Spring:
Free Length: Intake- 2.470" Exhaust-2.470"
Installed Height: Intake- 2.165" Exhaust- 2.165"
Open Test Press: Intake- 191# at 1.665 Exhaust- 191# at 1.665
Close Test Press: Intake- 74-81# at 2.165 Exhaust- 74-81# at 2.165


Shipping Information

  • Item Requires Shipping
  • 0.2 lbs.
  • W6.0000” x H2.0000” x L4.0000”

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