Carbon Brush Seating Stone

D3C R2104 Motor Armature

Original factory OEM replacement armature for the model D3C Rainbow.

If you have a D3A, D2A, D2, or model D Rainbow and have had the motor replaced at some point, then you may have the R2104 motor that this armature is standard. The R2104 motor is the only option for all models listed.

Effective serial number 4607000 with a start date of June 5th 1982.

D4C and SE (Special Edition) Armature

Original OEM factory armature for the D4C SE (Special Edition) and D4C model. Many times if you see your carbon brushes burnt down on one side but not the other, then most likely your armature is the problem.

This part works with both the R5125 and R2421 carbon brushes.

Effective March 29th 1993, the R2598 armature assembly was replaced by this improved version for use with the R5124 and R5125 carbon holder and brush kit.

*We can turn and possibly save your existing armature! Call our technical support team at 800-640-2033.

D2 and D Armature

This is the original armature design for the model D2 and D Rainbow before they went to the by-pass motor.

Works with the R700 field.

D3A and D2A By-Pass Motor Armature (Second Version)

This is the next version armature that came original with the R1405 motor design for the model D3A Rainbow bypass motor. It replaced the R1426 armature and works with the R1910 and R2424 field.

You may find this armature in a D2A, D2, or D model Rainbow because this motor design was a factory replacement for all previous motor versions.

Effective in the D3A from serial number 4545551 through 4607199.

D3A and D2A By-Pass Motor Armature (First Version)

This is the first version armature design for the model D3A and entire duration of the D2A Rainbow bypass motor. Works with the R1435 field.

Effective through serial number 4545550 in the D3A model Rainbow.