Diesel Parts Direct logo
Roll over image to zoom in Click on image to zoom
Diesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Caterpillar3400 SeriesValve Train Components

DS-4N-5906 Cylinder Head Valve Spring For Caterpillar Engines

Compatible With 3406, 3408, and 3412 Engines

OEM #: 4N5906SKU: DS4N5906

Ships in 1-2 days

$3.94

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

The DS-4N-5906 Cylinder Head Valve Spring (Intake And Exhaust) has the following specifications:

  • Free length: 2.525 inches
  • Inside diameter: .866 inches
  • Outer diameter: 1.250 inches
  • Wire: .192 inches

It can be used for intake and exhaust in the following Caterpillar engine models:

  • 3406 with an engine serial number of 92U
  • G3406 with an engine serial number of 1RK1 and above or 4FD1 and above
  • 3408
  • G3408 with an engine serial number of:
    • 3WR
    • 6FW
    • 6NB
    • 6YR
  • 3412
  • G3412 with an engine serial number of:
    • 3NK
    • 6ZM
    • 7DB
    • 8LW
SKU DS4N5906
OEM Number 4N5906
Part Type Valve Train Components
OEM Brand CATERPILLAR

Aftermarket warranty

View full warranty details
  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
  • If same-day shipping is critical, please call to confirm availability

View full shipping policy

Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.