Carbon brush set with part number N489912 is a precise replacement motor brush suit for Dewalt,  including the, 4″In Angle Grinder and several closely related models. These brushes are essential for the electrical operation of universal motors found in these grinders, providing reliable conductivity between the stationary field windings and the rotating armature under load.

Manufactured from high‑quality carbon/graphite composite, each brush is engineered to maintain stable electrical contact with the commutator while resisting wear and heat from continuous motor operation. Over time, carbon brushes wear down naturally; replacing worn brushes with this genuine or high‑quality equivalent set ensures your grinder maintains torque, reduces motor sparking, and delivers consistent performance.

Product Dimension – 13.50 x 8 x 6.25 M.M.
Application – 4″In Angle Grinder
Part No. – N489912

Key Features –

OEM‑Compatible Replacement: Designed to match the original carbon brushes used in Dewalt DW28730 and similar angle grinder models.
High‑Quality Carbon/Graphite Material: Made from durable carbon/graphite compound for excellent electrical conductivity and long service life.
Improves Motor Performance: Restores efficient electrical contact between the commutator and armature, ensuring smoother motor operation with reduced sparking.
Wear‑Resistant Design: Engineered to withstand heat and friction generated during heavy or continuous grinding work.
Cost‑Effective Maintenance Solution: Affordable replacement brushes that help extend the life of your Angle Grinder and maintain optimal performance.

Note – Some slightly different models might have different brush size/shape — always cross-verify before purchase.

Rate – Price of The Carbon Brush Depend On The Quantity And Rate Negotiable As Per Condition Price is not fixed don’t consider this price.