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Part Number
4W2649
SHAFT
Category: —
List Price
$802.16
Stock Status Available (Contact for Inquiry)
Fits Equipment Models (1)

CAT 4W2649 SHAFT fits Caterpillar 3126B. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
135-3086-8288
WeChat: 135-3002-9789 / 135-3086-8288
Business days 8:00–18:00
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CAT 4W2649 SHAFT Caterpillar Part - WSTPARTS

4W2649 SHAFT — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SHAFT (Part # 4W2649). Designed for CAT Caterpillar equipment.

Key Features

  • ✔ 100% compatible with CAT matching models
  • ✔ Meets Caterpillar original quality and performance standards
  • ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
  • ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)4W2649
Product NameSHAFT
BrandCAT
Weight8.89 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

Where This Part Fits

Every row below is a real listing of 4W2649 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 BASIC ENGINE 108-3561 p.131

System Notes — BASIC ENGINE

The basic engine group covers the core structure and internals: cylinder block, cylinder head, pistons, rings, liners, connecting rods, crankshaft, bearings, camshaft and the gasket sets that seal them. These parts determine compression, oil pressure and power output. They wear gradually — rings lose tension, bearings show copper, liners glaze — and the first signs are usually blow-by from the breather, rising oil consumption, or a knock that gets louder as the engine warms. Replacing a basic engine part is a planned overhaul decision rather than a roadside fix, so matching the exact part number and serial number range matters more here than anywhere else on the machine.

FAQ

Is 4W2649 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.

Genuine vs OEM replacement — what is the difference?
Genuine CAT parts carry an anti-counterfeit label. OEM equivalents are built to the same specifications, bench-tested and supplied with full warranty at a better price.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a 12-month warranty.

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

Frequently Asked Questions
What equipment does 4W2649 fit?
CAT 4W2649 SHAFT fits 1 Caterpillar equipment model including 3126B, verified against Caterpillar parts manuals and confirmed orders.
Where is 4W2649 listed in the Caterpillar parts manual?
4W2649 is listed in the Caterpillar parts manual under 3126B, BASIC ENGINE, group 108-3561, page 131.
How can I order 4W2649?
Add 4W2649 to the inquiry cart, or send us your machine model and serial number — we verify the part number before dispatch.

Parts Diagram

100%
4W-2649 SHAFT-CLUTCH CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
15N-9315RING-DRIVE
36L-3964COTTER
45D-2751WASHER-SPRING
52L-8262RING-ADJUSTMENT
61L-6931SCREW AS-MACHINE
74W-2652LEVER AS-HAND
80S-1587BOLT (1/2-13X1.75 IN)
93B-8489FITTING-GREASE
109S-1354NUT (5/8-18 THD)
116F-0253LOCKWASHER
124B-4775HOSE AS (12.0IN)
132H-3755BOLT (5/16-18X0.62 IN)
143F-9556LOCKWASHER
157L-0116LOCK
165B-6159SETSCREW-POINT
175L-4202HOUSING-CLUTCH
186B-3224CUP-BEARING
194B-7255CONE-BEARING
204W-2649SHAFT-CLUTCH
212L-8259LEVER
221L-9087KEY
234B-4771LOCK
242L-8260SLEEVE-SLIDING
252N-9363RETAINER-BEARING
268B-7121FITTING-HYDRAULIC
274B-4715COLLAR AS
280L-0639BOLT (3/8-24X2.25IN)
292L-6267LOCKNUT (3/8-24 THD)
304B-4722SHIM
316L-5151KEY-WOODRUFF
324B-4756SHAFT-GOVERNOR CONTROL
334B-4725YOKE
340S-1591BOLT (3/8-16X1.5 IN)
359F-5644LOCKWASHER
366L-3965PIN
376L-3960COTTER
385B-5251LINK
393N-7953PLATE AS
403N-7954LOCKPIN
413N-7955SPRING-LOCKPIN
423N-7952PLATE-DRIVE
432L-8256PLATE-HUB & BACK
442L-8257NUT-HUB AVAILABLE REPAIR KIT(S):
455N-3789CLUTCH AS
Quality Guarantee
Warranty Period 12 months / under normal use
After-sales Response Response within 24h, solution within 48h
Return Policy Return or exchange within 7 days of receipt (original packaging required)
Quality Inspection 100% inspected before shipment; inspection report on request
Technical Support Free installation guidance; engineer support online
📦 Packaging
Packing Method Genuine or neutral packaging available
Protective Packing Shock-proof & moisture-proof materials
Part Number Label Individual part number label
Customization Custom carton marking supported
After-Sales Service Process
01
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Describe issue / send photos
02
Engineer Review
Solution within 24h
03
Confirm Solution
Return, repair or replacement
04
Case Closed
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