CAT 9X4251 BRUSH KIT for C7 Caterpillar Part - WSTPARTS

9X4251 BRUSH KIT is a Repair Tools component engineered for Caterpillar C7 and 3126B machines, built to match original factory specifications. It is categorized under Repair Tools. Every unit is fitment-verified before dispatch. Manual reference: 3126B: ELECTRICAL AND STARTING SYSTEM, group 135-2149, page 589; C7: ELECTRICAL AND STARTING SYSTEM, group 108-3857, page 690.

9X4251 BRUSH KIT for Caterpillar C7 — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BRUSH KIT (Part # 9X4251). Designed for CAT C7, 3126B equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C7, 3126B
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	9X4251
Product Name	BRUSH KIT
Brand	CAT
Applicable Models	C7, 3126B
Weight	0.36 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 9X4251 in the Caterpillar parts manual: the machine it is published under, the system it belongs to, the group number and the manual page. Use it to confirm the part against your own parts book before ordering.

Machine	System	Group No.	Manual Page
3126B	ELECTRICAL AND STARTING SYSTEM	135-2149	p.589
C7	ELECTRICAL AND STARTING SYSTEM	108-3857	p.690
3126B	ELECTRICAL AND STARTING SYSTEM	146-3638	p.593
C7	ELECTRICAL AND STARTING SYSTEM	135-2149	p.694
3126B	ELECTRICAL AND STARTING SYSTEM	108-3857	p.605
3126B	ELECTRICAL AND STARTING SYSTEM	207-1510	p.607
3126B	ELECTRICAL AND STARTING SYSTEM	036-9821	p.570

System Notes — ELECTRICAL AND STARTING SYSTEM

The electrical and starting system covers the battery, starter motor, alternator, wiring harness, relays, switches and the instrument panel. It carries current from the batteries to the starter to crank the engine, and from the alternator back to keep the batteries charged. Because these machines work in dust, vibration and wide temperature swings, connectors corrode, harness insulation chafes against the frame, and starter solenoids burn out from repeated short cranks. Parts in this group are usually replaced on a symptom basis — slow cranking, a dash warning, lights that dim under load, or a no-start condition traced to an open circuit.

FAQ

Is 9X4251 the right part for my machine?
Match the part number on your old part, or send us your equipment serial number — WSTPARTS verifies fitment free of charge for CAT C7.

Genuine CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.

📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com