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Part Number
1003638
HARNESS A
Category: — | Fits: 3512
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Fits Equipment Models (1)
3512

CAT 1003638 HARNESS A fits Caterpillar 3512. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
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CAT 1003638 HARNESS A for 3512 Caterpillar Part - WSTPARTS

Need a dependable Wiring Harness part for your Caterpillar 3512 machine? The 1003638 HARNESS A from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Wiring Harness. 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.

1003638 HARNESS A for Caterpillar 3512 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement HARNESS A (Part # 1003638). Designed for CAT 3512 equipment.

Compatible Models

Key Features

  • ✔ 100% compatible with CAT 3512
  • ✔ 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)1003638
Product NameHARNESS A
BrandCAT
Applicable Models3512
Weight0.91 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

FAQ

Is 1003638 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 3512.

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 1003638 fit?
CAT 1003638 HARNESS A fits 1 Caterpillar equipment model including 3512, verified against Caterpillar parts manuals and confirmed orders.
Is 1003638 a genuine CAT part?
WSTPARTS supplies genuine CAT parts as well as quality-tested aftermarket alternatives. Contact our sales team for current availability and options for 1003638.
How can I order 1003638?
Add 1003638 to the inquiry cart or contact us with your equipment model and serial number. We ship worldwide and support part number verification.

Parts Diagram

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100-3638 HARNESS AS CAT parts diagram
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17W-2743SWITCH AS (OVER SPEED)
22N-2258RIVET-POP
32W-8603MOUNT-SHOCK
44B-2047NUT (10-24 THD)
56I-0757JUNCTION BOX AS
62W-0394CLAMP
77W-1170CLAMP
88T-0328WASHER-HARD (1MM THK)
97T-6365HOUSING-RECEPTACLE
104B-4274WASHER (1.2MM THK)
113E-6477RELAY AS
124F-8711PLUG (39.69MM DIA)
134B-1226SCREW-MACHINE (10-24X6.35MM)
144W-3969BRACKET-RETAINER
156V-2673CAP-PROTECTION
166T-6651SWITCH AS (OIL PRESSURE)
177N-7781HOUSING-RECEPTACLE
187N-7780PIN-CONNECTOR (BLADE)In stock
197N-7779SOCKETIn stock
203J-1907SEAL-O-RING (11.89MM ID)In stock
219S-4684PLUG-O-RING
227L-0688BOLT-SOCKET HEAD (10-24X1.2IN)
235N-9222MANIFOLD-PRESSURE
249X-4276SWITCH AS-PRESSURE
255N-5159JUMPER-STRIP
262W-8602STRIP-TERMINAL
272N-3480SCREW-MACHINE (10-24X.75IN)
282W-8684STRIP-MARKER
297W-1171CLAMP
301L-6561PLUG
317W-0088FILM-STOP
324W-7957PLATE GP-IDENTIFICATION
332W-8802STRIP-SEAL
344W-8471RELAY-TIME DELAY
358M-3839BUTTON-PLUG
366T-3644CIRCUIT BREAKER AS (20 AMP)In stock
376V-8376SCREW-MACHINE (8-32X.25IN)In stock
389B-7233LOCKWASHER (NO.8)
399X-8486SCREW-MACHINE (8-32X.75IN)In stock
406T-3642CIRCUIT BREAKER AS (10 AMP)
416K-9591PLUG-BUTTON
423L-4566PLUG-BUTTON
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
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