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Part Number
6N2099
CRANKCASE
Category: — | Fits: 3406C
List Price
$471.13
Stock Status Available (Contact for Inquiry)
Fits Equipment Models (1)
3406C

CAT 6N2099 CRANKCASE fits Caterpillar 3406C. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
135-3086-8288
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CAT 6N2099 CRANKCASE for 3406C Caterpillar Part - WSTPARTS

6N2099 CRANKCASE is a Lubrication component engineered for Caterpillar 3406C machines, built to match original factory specifications. It is categorized under Lubrication. Every unit is fitment-verified before dispatch. Manual reference: 3406C: BASIC ENGINE, group 354-7531, page 85.

6N2099 CRANKCASE for Caterpillar 3406C — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement CRANKCASE (Part # 6N2099). Designed for CAT 3406C equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT 3406C
  • ✔ 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)6N2099
Product NameCRANKCASE
BrandCAT
Applicable Models3406C
Weight7.21 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

Where This Part Fits

Every row below is a real listing of 6N2099 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
3406C BASIC ENGINE 354-7531 p.85

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 6N2099 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 3406C.

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 6N2099 fit?
CAT 6N2099 CRANKCASE fits 1 Caterpillar equipment model including 3406C, verified against Caterpillar parts manuals and confirmed orders.
Where is 6N2099 listed in the Caterpillar parts manual?
6N2099 is listed in the Caterpillar parts manual under 3406C, BASIC ENGINE, group 354-7531, page 85.
How can I order 6N2099?
Add 6N2099 to the inquiry cart, or send us your machine model and serial number — we verify the part number before dispatch.

Parts Diagram

100%
3406C · BASIC ENGINE · 354-7531 CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
11N-3522CRANKSHAFT-AIR COMPRESSOR
21B-8714KEY-WOODRUFF
31N-2998ADAPTER AS
45M-6214PLUG-PIPEIn stock
57N-0243LOCK-ROD BOLT
66N-2099CRANKCASE AS-AIR COMPRESSOR
77N-6172BUSHING-COMPRESSOR
89M-0381INSERT-INLET VALVE
92B-0858PLUG-PIPEIn stock
106N-2098GASKET-CYLINDER HEAD
115M-6509SEAL-O-RING
127N-4837PISTON AS-COMPRESSOR (EACH INCLUDES)
131W-2803PLUG
146N-2100COVER AS-REAR
156N-2106ROD AS-CONNECTING
166N-0634GASKET-COVER
176N-6949COVER-CRANKCASE
180T-0102BOLT (3/8-16X0.625-IN)
193B-4506LOCKWASHER
203B-4507LOCKWASHER
210S-1619BOLT (3/8-16X3-IN)
225P-0060BOLT (7/16-14X0.75-IN)
236N-2097HEAD AS-COMPRESSOR
243J-5390PLUG AVAILABLE REPAIR KIT(S):In stock
258N-3665KIT-SEAL (AIR COMPRESSOR) (INCLUDES SEALS AND RETAINING RINGS)
268N-3666KIT-AIR COMPRESSOR (INCLUDES PISTONS, GUIDES, PLUNGER, SEAT, SPRING, SADDLE, RINGS, BOLTS, LOCKWASHERS, LOCK, BEARING, VALVE, GASKET & BUTTONS)
276N-2109KIT-PISTON RING (AIR COMPRESSOR)
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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02
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03
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04
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