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Part Number
7W4020
COMPRESSOR
Category: | Fits: C13
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Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
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CAT 7W4020 COMPRESSOR for C13 Caterpillar Part - WSTPARTS

WSTPARTS supplies the 7W4020 COMPRESSOR, a CAT Compressor replacement part designed for Caterpillar C13 applications. It is categorized under Compressor. 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.

7W4020 COMPRESSOR for Caterpillar C13 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement COMPRESSOR (Part # 7W4020). Designed for CAT C13 equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT C13
  • ✔ 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)7W4020
Product NameCOMPRESSOR
BrandCAT
Applicable ModelsC13
Weight51.62 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

FAQ

Is 7W4020 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 C13.

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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3406C · BASIC ENGINE · 129-3948 CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
12B-0947BOLT (1/2-13X2.25-IN)
21D-4569BOLT (1/2-13X4.25-IN)
35P-8245WASHER-HARD (13.5X25.5X3-MM THK)
47W-4020AIR COMPRESSOR GP
57W-7394GASKET
68S-9191BOLT (3/8-16X4-IN)
70S-1590BOLT (3/8-16X2-IN)
84W-1273BRACKET
90S-1591BOLT (3/8-16X1.5-IN)
101F-7958NUT-FULL (1/2-13-THD)
115M-2894WASHER-HARD (10.2X18.5X2.5-MM THK)In stock
127M-8485SEAL-O-RING
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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