2D9600 (Caterpillar 2D-9600) is the other brake cylinder Caterpillar catalogues against these same three graders. It is a lighter unit and is stocked separately; the two are not interchangeable.
Caterpillar publishes no replacement or superseding number for 3D-2219.
Key Notes:
Part Number: 3D2219 (Caterpillar reference 3D-2219)
Position: Brake Hydraulic Cylinder Assembly
Function: Converts pedal force into hydraulic pressure in the grader service brake circuit
Material: Steel body, bore finished for brake fluid service
Weight: 6.2 lbs.
Condition: Aftermarket replacement part
Application: Replaces the brake cylinder assembly 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, linkage and mounting hardware are not included. Caterpillar catalogues both 3D-2219 and 2D-9600 against the 12E, 120 and 120B without distinguishing the positions, so match the unit you remove by length and port arrangement rather than by machine model alone.
Common Use Case or Symptoms:
Fit this when the brake circuit has lost the ability to build and hold pressure, or when the cylinder body is weeping at the end cap - on a grader the brakes are also what the operator uses to set the machine for a blade cut, so soft brakes cost accuracy long before they become a safety problem.
Why Choose Broken Tractor?
✅ Two Cylinders One Machine: Caterpillar lists two different cylinders against these graders, and this is the heavier of the pair at 6.2 lbs.
✅ Match By Body Not By Model: The listing tells you to compare the removed unit, because the model list alone will not separate these two numbers.
✅ Steel Bodied Assembly: Supplied as a complete cylinder assembly rather than a seal kit, so a scored bore is not put back into service.
$115.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
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