We help overseas buyers source CAT and SEM spare parts from China. Simply send your machine model, serial number, part number or photos. Quotation support within 24 hours.
Parts are grouped by category — engine, hydraulic, undercarriage, electrical, cooling, seals, maintenance — so you can tell us exactly what you need.
Overhaul kits, pistons, cylinder heads, water pumps and fuel system components for CAT 320 series.
Main pumps, travel motors, swing motors, cylinders and control valves for the complete hydraulic system.
Routine service consumables: oil, fuel, air and hydraulic filters — individual or in service kits.
Alternators, starters, sensors, monitors and wiring harnesses to keep machines running reliably.
Radiators, fans, thermostats and water pumps to prevent overheating in demanding conditions.
Hydraulic seal kits for cylinders, pumps and valves — essential for preventing leaks and downtime.
Track shoes, rollers, sprockets and idlers that keep CAT 320 machines moving on any terrain.
A selection of our most-requested items. Don't see your part? Send us the part number and we'll respond within 24 hours.
MAOQING PARTS is the website of Shanghai MAOQING Industrial Equipment Co., Ltd., a Shanghai-based contact for international CAT and SEM equipment parts inquiries. Equipment dealers, repair workshops and contractors can send a parts list for review and quotation.
Browse CAT 320 excavator engine, hydraulic, filter and undercarriage parts. Machine models and part numbers are reference information; compatibility must be checked against the serial number and specifications before ordering.
A separate reference catalog includes: 322-3155 engine oil filter, 438-5386 primary fuel filter, and 528-7222 outer air filter. These listings do not imply interchangeability with one another or with other CAT 320 variants.
Send your part number or Excel parts list, equipment model, machine serial number, quantities and destination country. Product origin, availability, lead time and pricing are confirmed for each quotation, not assumed from reference numbers.
Brand names and reference numbers are used to identify equipment and requested components. They do not, by themselves, establish OEM origin, authorization or confirmed fitment.
No complex registration. Just tell us what you need.
Message us on WhatsApp or submit an RFQ with your part number, model, serial number, and quantity — or just send a photo of the part you need.
We check stock and source availability, then reply with pricing and lead time — typically within 24 hours on business days.
Confirm the order, arrange payment via T/T or agreed terms, and we ship by sea freight or air express to your port.
Examples of heavy equipment components. Confirm the exact part number and machine serial number with us before ordering.
International Spare Parts Specialist — MAOQING PARTS, Shanghai
Hi, I'm Carrie Xu. I work directly with overseas equipment dealers, repair workshops and contractors looking for CAT and SEM spare parts.
Instead of communicating through multiple departments, you will communicate directly with me from inquiry to quotation. If you already have the machine model, serial number, part number or photos, feel free to contact me on WhatsApp.
Whether you need a single seal kit or a full container load — we respond within 24 hours.