SINOCMP is a dedicated supplier of aftermarket parts with over 10 years of specialized experience in construction machinery. Our catalog covers from monitors and ECU controllers to hydraulic pumps, engine rebuild kits, and seal kits — all manufactured to OEM specification and individually verified before shipment. Whether you operate a 320D excavator, a D6 dozer, or a 966 wheel loader, we have the right part ready to ship.
What Caterpillar Parts Does SINOCMP Supply?
We stock a comprehensive range of replacement parts across every major system of Caterpillar heavy equipment:
| Category |
Popular Parts |
| Electrical & Electronic |
Monitor & gauge cluster panels, ECU/ECM controllers, wiring harnesses, solenoid valves, sensors, relays, throttle motors |
| Engine Parts |
Overhaul & rebuild kits, gasket sets, water pumps, oil pumps, turbochargers, crankshafts, cylinder heads |
| Fuel System |
Fuel injectors, injection pumps, fuel feed pumps, common rails, fuel transfer pumps |
| Hydraulic System |
Hydraulic pump assemblies, main control valves, piston & gear pumps, hydraulic motors, final drive assemblies |
| Consumables & Maintenance |
Cylinder seal kits, O-ring & gasket kits, throttle cables, filters, ignition switches |
| Air Conditioning |
A/C compressors, blower motors, radiators, condensers, A/C controllers, and cooling fans |
Compatible Caterpillar Equipment Models
Use the search bar above to look up by part number, model, or component name.
Excavators (most requested models):
308E · 311F · 313F · 315D · 318F · 320C · 320D · 320D2 · 320E · 320F · 323D · 323F · 325D · 326F · 329E · 330C · 330D · 336D · 336E · 345C · 349E · 374F · 390F
Dozers:
D3K · D4K · D5K · D6K · D6N · D6T · D7E · D8T · D9T
Wheel Loaders:
924K · 930K · 938K · 950K · 962K · 966K · 972K · 980K
Engines — C series:
C1.1 · C1.5 · C2.2 · C3.3 · C4.4 · C6.6 · C7 · C9 · C13 · C15 · 3306 · 3408
Don't see your model? Contact our parts specialists — we source to order.
Why Equipment Owners Choose SINOCMP CAT Parts
- ✅ OEM-Level Quality, Verified Before Shipment
Every part passes strict pre-shipment inspection. Using materials matched to original CAT specifications — verified fit and performance, every time.
- ✅ 14+ Years of Caterpillar Expertise
A decade of specialization means our team knows CAT failure patterns, part number cross-references, and model compatibility nuances that generic suppliers miss.
- ✅ 1,000+ Parts In Stock, Ready to Ship
Most orders ship within 24–48 hours. Free shipping to most countries. Express options available to minimize your machine's downtime.
- ✅ Warranty & Hassle-Free Returns
All parts carry warranty coverage against manufacturing defects. Our 24/7 support handles returns and replacements promptly.
- ✅ Competitive Pricing with Wholesale Options
Significant savings versus genuine CAT prices without compromising reliability. Fleet operators and dealers can apply for our wholesale program for volume discounts.
How to Find the Right CAT Part
Search by OEM part number — enter the CAT part number directly (e.g., 309-5711 for a 320D2 monitor) for an exact match.
Search by machine model — type your equipment model (e.g., "320D2" or "336D") to browse all compatible parts.
Search by component + model — combine part type and model (e.g., "monitor 320D" or "seal kit 336D") to filter by system category.
Ask our team — can't find it? Email service@sinocmp.com or use live chat with your model and serial number. We respond within hours.
Frequently Asked Questions
Q: Are these genuine Caterpillar OEM parts?
A: No — they are high-quality aftermarket replacements manufactured to OEM specifications. They are engineered to fit and perform identically to genuine CAT parts at a significantly lower cost.
Q: How do I confirm a part fits my CAT machine?
A: Cross-reference the OEM part number from your existing component, or provide your machine model and serial number. Our team verifies compatibility before you place an order.
Q: What warranty do SINOCMP CAT parts carry?
A: All parts carry a warranty. Coverage details vary by component — see our Warranty Policy or ask our support team for specifics.
Q: Do you ship internationally?
A: Yes. We ship worldwide with free shipping to most countries. Express options are available for urgent orders.
Q: Can I order in bulk for my fleet or workshop?
A: Absolutely. Our wholesale program offers tiered pricing for fleet operators, equipment dealers, and repair workshops. Contact us directly or apply via the Wholesale Program page.
