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Brake Master Cylinder for Caterpillar 12E, 120 & 120B Motor Graders | 2D9600

SKU:
2D9600
FitsModel:
12E, 120, 120B
ListDescription:
Brake Master Cylinder
Brake Master Cylinder for Caterpillar 12E, 120 & 120B Motor Graders | 2D9600
Part # 2D9600

Fits Models At A Glance:

  • Caterpillar Motor Graders: 12E, 120, 120B

Serial Number Notes:

  • 120: 10R00001-UP, 22R00001-UP
  • 120B: 32C00001-UP, 64U00001-UP, 7KB00001-UP
  • 12E: 71D00001-UP, 99E00001-UP

Superseding & Cross-Reference Numbers:

  • 3D2219 (Caterpillar 3D-2219) is catalogued by Caterpillar against the same three graders and is a different cylinder at a different weight. The two are not interchangeable - compare the unit you are removing before ordering either.
  • Caterpillar publishes no replacement or superseding number for 2D-9600.

Key Notes:

  • Part Number: 2D9600 (Caterpillar reference 2D-9600)
  • Position: Brake Pedal Master Cylinder
  • Function: Converts brake pedal force into hydraulic pressure for the service brakes
  • Material: Steel body, bore finished for brake fluid service
  • Weight: 5.3 lbs.
  • Condition: Aftermarket replacement part
  • Application: Replaces the brake master cylinder on Caterpillar 12E, 120 and 120B motor graders
  • Shipping Restrictions: Ships to the lower 48 US states only
  • Note: Cylinder only - brake fluid, lines, fittings, pedal linkage and mounting hardware are not included. Caterpillar lists a second cylinder, 3D-2219, against these same three graders; confirm which one is on your machine before ordering.

Common Use Case or Symptoms:

Change this when the pedal sinks slowly to the floor under steady foot pressure, or when fluid weeps past the rear seal onto the pedal bracket - a grader that will not hold pedal is a machine you do not want on a crowned road or a haul ramp.

Why Choose Broken Tractor?

  • ✅ Pedal Sink Is The Symptom: A master cylinder that bypasses internally gives no leak to find, just a pedal that keeps travelling - which is why this part gets replaced late.
  • ✅ Bore Finished For Brake Fluid: The bore surface is what the cup seals live or die on, and it is the first thing that goes on a cylinder that has sat with old fluid in it.
  • ✅ Three Grader Fitment: Covers the 12E, 120 and 120B on one number.
$104.00

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Product: Category: Brand: Head Title: Grader Brake Master Cylinder | Broken Tractor | 2D9600