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Part Number
7N1991
SUPPORT
Category: | Fits: 3306
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Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
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CAT 7N1991 SUPPORT for 3306 Caterpillar Part - WSTPARTS

WSTPARTS supplies the 7N1991 SUPPORT, a CAT Structure replacement part designed for Caterpillar 3306 applications. It is categorized under Structure. Every unit is fitment-verified before dispatch, backed by factory-direct pricing and warranty coverage. Contact our parts team with your machine serial number for a fast quotation.

7N1991 SUPPORT for Caterpillar 3306 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SUPPORT (Part # 7N1991). 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)7N1991
Product NameSUPPORT
BrandCAT
Applicable Models3306
Weight1.18 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

FAQ

Is 7N1991 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

Parts Diagram

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3306 · COOLING SYSTEM · 118-6243 CAT parts diagram
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20S-1619BOLT (3/8-16X3-IN)
37N-1991SUPPORT-EXPANSION TANK
43B-1915BOLT (3/8-16X1.375-IN)
55M-2894WASHER-HARD (10.2X18.5X2.5-MM THK)In stock
60S-1594BOLT (3/8-16X1-IN)
78L-4847COVER
87L-0874GASKET-HEAT EXCHANGER
99N-1650WASHER-HARD (10.2X25.5X2.5-MM THK)
106B-0933SPACER (10.31X19.05X6.35-MM THK)
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
Contact Us
Describe issue / send photos
02
Engineer Review
Solution within 24h
03
Confirm Solution
Return, repair or replacement
04
Case Closed
Send-back / re-ship / refund
Apply for After-Sales Service
Online Support ● Online
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✉️Emailcat@wstparts.com
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