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Part Number
1244433
PINION DRI
Category: — | Fits: 3306
List Price
$214.18
Stock Status Available (Contact for Inquiry)
Fits Equipment Models (1)
3306

CAT 1244433 PINION DRI fits Caterpillar 3306. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
135-3086-8288
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CAT 1244433 PINION DRI for 3306 Caterpillar Part - WSTPARTS

1244433 PINION DRI is a Pin/Bushing component engineered for Caterpillar 3306 machines, built to match original factory specifications. It is categorized under Pin/Bushing. Every unit is fitment-verified before dispatch. Manual reference: 3306: ELECTRICAL AND STARTING SYSTEM, group 106-5521, page 1221.

1244433 PINION DRI for Caterpillar 3306 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement PINION DRI (Part # 1244433). Designed for CAT 3306 equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT 3306
  • ✔ 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)1244433
Product NamePINION DRI
BrandCAT
Applicable Models3306
Weight0.32 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

Where This Part Fits

Every row below is a real listing of 1244433 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
3306 ELECTRICAL AND STARTING SYSTEM 106-5521 p.1221

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 1244433 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 3306.

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 1244433 fit?
CAT 1244433 PINION DRI fits 1 Caterpillar equipment model including 3306, verified against Caterpillar parts manuals and confirmed orders.
Where is 1244433 listed in the Caterpillar parts manual?
1244433 is listed in the Caterpillar parts manual under 3306, ELECTRICAL AND STARTING SYSTEM, group 106-5521, page 1221.
How can I order 1244433?
Add 1244433 to the inquiry cart, or send us your machine model and serial number — we verify the part number before dispatch.

Parts Diagram

100%
124-4433 PINION-DRIVE (12-TEETH) CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
17W-0510COVER AS
27W-0517COVER-ROTOR NUT
37W-0516NUT-ROTOR CLAMP
48T-2182BALL BEARING
56V-5193BOLT-SOCKET HEAD (M8X1.25X40-MM)
67W-0511PLATE-REAR END
77W-0512HOUSING AS-CYLINDER
87W-0513PLATE-FRONT END
97W-0521GEAR AS (27-TEETH)
107W-0520CASE-GEAR
118T-0271BOLT-SOCKET HEAD (M10X1.5X35-MM)
127W-0534WASHER (10.3X22.2X4-MM THK)
138T-2224BOLT-SOCKET HEAD (M8X1.25X85-MM)
148T-0727BALL BEARING
157W-0533SPACER (10.3X16X15-MM THK)
168T-0726BEARING-ROLLER
177W-0530SPRING-RETURN
187W-0529CUP-SPRING
197W-0514ROTOR
207W-0532SHAFT-DRIVE
217W-0531SEAT-SPRING
227W-0528SPRING-CLUTCH
238T-2191RING-RETAINING
248T-0728BALL BEARING
252L-6965RING-RETAINING
268T-2190RING-RETAINING
277W-0519PINION-ROTOR (9-TEETH)
281S-7056BALL BEARING
297W-0518WASHER-WAVE
308T-1160BOLT-SOCKET HEAD (M10X1.5X50-MM) AVAILABLE REPAIR KIT(S):
317W-0523KIT-PISTON (AIR STARTING MOTOR) (INCLUDES O-RING)
327W-0525KIT-JAW CLUTCH (AIR STARTING MOTOR) (INCLUDES SPLINES & BEARING)
337W-0538KIT-DRIVE (AIR STARTING MOTOR) (INCLUDES GASKET, O-RING, HOUSING, SEAL, BEARING, BOLTS & WASHERS)
347W-0540KIT-SEAL & VANE (AIR STARTING MOTOR) (INCLUDES O-RINGS, VANES, GASKET, SEALS & WASHERS)
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
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03
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04
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