General Electric 41B537963PIA Carbon Brush

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Carbon Brushes

General Electric 41B537963PIA Carbon Brush

Part No. 41B537963PIA

General Electric 41B537963PIA electrographitic carbon brush (cross ref REP1221, Morgan T900 grade), single wafer OEM replacement brush for GE traction motors. Optimized for heavy cyclic shock loads and frequent start-stop operation. Delivers excellent commutation, low sparking, stable protective patina and minimal commutator wear. Precision machined to GE OEM dimensions, bulk stock available for global mining & heavy equipment maintenance.

Material	Electrographitic, Morgan T900 Grade (Single wafer, multi copper shunt)
Dimensions	Imperial:0.750" (T) × 2.250" (W) × 2.000" (L), Copper shunt lead:4.500" Metric:19.05mm × 57.15mm × 5
Application	OEM replacement carbon brush for General Electric heavy-duty traction motors. Cross reference Repco REP1221. Widely used in mining haul truck wheel motors, heavy off-highway vehicles, oil rig traction drives and cyclic shock-load DC rotating machinery
Voltage	DC up to 750V
Current Density	3 – 9 A/cm²
Speed	Max peripheral speed up to 32 m/s
Hardness	Shore 40 – 50
Grade	Morgan T900 Electrographitic Grade
Connection	Shunt wire bonded connection
Lead Type	Multiple flexible stranded copper shunt leads with eye mounting terminal
Spring	External separate spring assembly (no built-in spring)

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Technical Specifications

Product Model	General Electric 41B537963PIA
Cross Reference Part	REP1221, Morgan T900
Material	Electrographitic, Morgan T900 Grade, single wafer, multi copper shunt
Imperial Dimensions	0.750" × 2.250" × 2.000", Copper Shunt Lead:4.500"
Metric Dimensions	19.05mm × 57.15mm × 50.80mm, Shunt Lead:114.3mm
Application	GE traction motors, mining haul trucks, off-highway equipment, oil rig traction drives
Working Voltage	DC up to 750V
Current Density	3 – 9 A/cm²
Max Peripheral Speed	32 m/s
Hardness	Shore 40 – 50
Brush Grade	Morgan T900 Electrographitic Grade
Connection Type	Shunt wire bonded connection
Lead Type	Multiple flexible stranded copper shunt leads with eye mounting terminal
Spring	External separate spring assembly, no integrated spring
Key Features	Traction duty design, shock load resistant, stable commutation, low sparking, long service life
Quality Standard	Matches GE OEM specification

Description

The General Electric 41B537963PIA Carbon Brush is a heavy-duty electrographitic traction motor carbon brush, OEM spare part for General Electric large traction motors, cross-referenced as Repco REP1221 with Morgan T900 grade. It is purpose-built for mining haul trucks and off-highway heavy equipment exposed to vibration, shock loads and continuous cyclic duty. Made of premium impregnated T900 electrographitic carbon compound, it maintains consistent sliding contact and reliable high-current transfer under heavy vibration and frequent start-stop traction conditions. It builds a smooth, uniform protective patina on commutator surfaces, suppressing sparking, lowering friction and reducing commutator abrasion. The multi flexible stranded copper shunt leads with eye terminal provide robust mechanical bonding and stable high-current conduction for demanding traction duty cycles. Commonly deployed on mining haul truck wheel motors, heavy off-highway vehicles and oil drilling rig traction motor systems. Precision machined to original GE OEM specifications for direct drop-in replacement. Each batch undergoes strict quality inspection for resistivity, hardness and wear performance. Bulk supply and worldwide shipping available for mining contractors and heavy equipment maintenance operators.