D4C and D3C Rainbow Motor Brush

This item is sold each. If you need a pair to replace both sides on your motor, then please add a quantity of two to your cart.

Original factory OEM carbon brush for the D4C and D3C Rainbow. Be sure to measure and confirm you are ordering the correct size. (.4955 or just less of 1/2 inch).

Effective through serial number 7520714. The R5125 is the carbon brush that you need if your serial number is higher or if your measurement is larger. Check the "Related Items" tab for an R5125.

* SELECT OPTION: This item needs to be "seated" for proper life expectancy. We use a variable transformer (variac) to seat the brushes. If you are unable, we offer this as an optional service.

• Not properly seating in the carbon brushes can cause brush and commutator damage leading to costly maintenance and downtime
• By properly seating in the carbon brushes, it allows you to use rated current almost immediately
• Change all carbon brushes at one time
• Vacuum excess carbon dust to prevent from reaching machine windings and bearings

The M596 Seating Stone is only used to "clean up" the commutator of the armature and not meant to "seat" the brushes. If you are not exactly sure how to "seat" your carbon brushes, the service fee that we charge is well worth it in the long run.

If you do not seat the motor brushes, you can expect about a one year life before they wear out.

• 5/5 By Bill Thurmeier On Sep 16th 2020

  "These brushes were a perfect fit, worn into the curvature of the armature, and basically a plug and play solution. Thank you!"

• 5/5 By Rob Zol On Aug 5th 2020

  "I ordered the brushes online for our 40 year old machine. They arrived promptly to Sydney Australia, properly seated and well packaged. Simply installed and away she went for another 40. Thanks for the great international allied support"

• 5/5 By Jesus R Martinez-Raga On Jun 13th 2020

  "This is the second time I replace the motor brushes in a Rainbow D4C SE vacuum in years. The brushes are high quality and last a long time."

• 5/5 By nancy ailshie On Nov 8th 2019

  "brush"

• 5/5 By don climer On Aug 21st 2019

  "The on-line video for the brushes was very helpful."