CN Machinery — China Construction Machinery & Parts Supplier
Factory-direct spare parts, wear parts and used construction machinery for Africa, the Middle East, Southeast Asia and Russia. factory-direct quality at aftermarket prices.
From single spare parts to complete used machines — we cover your heavy equipment needs end to end.
Excavator & loader parts, mining crusher wear parts and engine parts — bucket teeth, filters, hydraulic cylinders, seal kits, jaw plates and more, fitting Caterpillar, Komatsu, Volvo, Hitachi and other major brands.
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Inspected and serviced used forklifts, wheel loaders, excavators, bulldozers and trucks from Japan and China — tested, cleaned and ready for shipping to your port.
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Factory-direct sourcing from China's leading manufacturers, a professional export team, honest inspection reports and dependable after-sales support in 4 key markets.
About Our Company →Our most-requested heavy machinery parts — in stock, factory-direct.
Built on factory-direct sourcing, strict quality control and a team that answers.
Direct from China's leading manufacturers — no middlemen, save 30-50% vs pricing on parts and machines.
Sea or air freight worldwide, FOB Shanghai or CIF to your port. We handle packing, documentation and tracking.
Replacement parts built to factory specifications with pressure-tested, ISO 9001 certified production lines.
Real people on WhatsApp and email, around the clock. Send us your part number or drawing for a free quotation.
Straight answers to the questions buyers ask us most.
No strict MOQ for standard parts; container orders get best pricing.
Sea freight FOB Shanghai / CIF your port, or air for urgent parts. We handle packing & documents.
T/T, L/C for larger orders; 30% deposit + 70% against B/L copy.
COA, third-party inspection (SGS/Intertek) available on request.
Yes for standard parts, sample cost refundable on order.
In-stock parts 7-15 days; used machines 15-30 days after inspection & packing.
More questions? WhatsApp us — we reply within 24 hours.
Aftermarket replacement parts compatible with the world's leading construction machinery brands.
We export to construction and mining projects across four key regions.
Excavator and loader parts, air filters and diesel filters for high-dust, high-wear environments.
Water-separator fuel filters and wear parts built for desert heat and tough site conditions.
Hydraulic filters, seal kits and used machines shipped fast via short sea routes.
Undercarriage, engine parts and mining consumables with reliable overland and rail logistics.
Practical guides written by our export team to help you buy parts and machines with confidence.
Hitachi's own parts list carries two tooth systems for the same ZX200-220 class: the 35S point 4427919 on lock pin 4501627 with rubber lock 4501625, and 205-70-19570 on side pin 09244-02496 — with the adapter numbers behind each and the pin check that settles the order.
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Two general purpose tips from the same J family, one caliper apart. Cat publishes both sets of numbers: 215 mm long on a 14 mm × 92 mm pin for the 1U-3302, 240 mm on a 19 mm × 108 mm pin for the 1U-3352 — plus the five checks that stop a wrong order before the pallet ships.
Read Guide →The EX200 / EX210 tooth is catalogued as TB00705 - 6.6 kg to 9 kg depending on the casting - on the weld-on two-strap adapter TB00704 with pin and retainer EX210PN. The ZX200-220 class takes 35S or 205-70-19570 instead; only the 2014503 / 2014504 side cutters carry over.
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205-70-19570 for the PC200 on pin 092-44-02496, 207-70-14151 for the PC300 on 09244-02516, 208-70-14152 for the PC400 - and why the same PC300 tooth mounts on 40, 45, 50 or 55 mm adapters. Catalogue weights, the two pin numbering systems, and the five measurements to take before ordering.
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Three teeth are published for the same 21-tonne Hyundai - 4.50 kg, 5.80 kg and 6.50 kg - and all three take the same E161-3035 pin, so the pin number will not tell you which one you are holding. Adapter openings, the 9 kg rock tooth, and the machine data.
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The tooth that ships for the EC210, EC240 and EC290B, the 40 mm weld-on adapter under it, and why Volvo's own parts guide prints a tooth 2 kg lighter for the same machine class.
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The 2713-0032 tooth, its 2713-0033 weld-on adapter in 40 to 60 mm, and why catalogues publish two different pin and lock sets for the same Doosan 36-tonne bucket.
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2713-1219 on pin 2705-9010 (22 mm × 109 mm) and lock 2114-1849, on the 2713-1220 adapter in a 40 or 50 mm gap - and why cross-reference lines print 7T3408 (Caterpillar J400) and 2705-1021 (DH360 pin) against the same tooth. Catalogue weights for the standard, RC and TL profiles, the 230111-00090 listing, and the DH280 buckets still running the older 2713-9038 tooth.
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2713-1217 on pin 2705-1020 and lock 2114-9008, on the 2713-1218 weld-on adapter in a 35 or 40 mm gap - and why one DX225LCA parts list quotes the heavier DH300 tooth 230111-00090 instead. The five measurements that settle it on your bucket, with the catalogue weights for both systems.
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Caterpillar and Komatsu both pin their teeth from the side, which is why a J250 tip and a PC200 tooth look identical in a photo and will not swap. The identification chart: pin diameter and length by family (J200 to J400), the Komatsu 205-70-19570 profiles that share one pin, and the five measurements that stop a wrong order.
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A 320D air cleaner takes one of two element sizes, and Cat sells each in two grades: 6I-2501 or UHE 128-2686 at 281.6 × 339.2 mm, 131-8822 or UHE 134-0685 at 237.0 × 330.2 mm. What Cat claims for the UHE grade, how the fitment lists differ, and why a Donaldson number will not tell you which grade you are buying.
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A 320 GC, 323 GC or 326 GC runs two fuel elements, not one: separator 523-4987 at 102.7 × 258.3 mm upstream and secondary 509-5694 at 88.5 × 169 mm downstream — with the C4.4 machine list behind each number and the length Cat prints two different ways.
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A complete buyer's guide — supplier selection, machine inspection, price negotiation, container vs RoRo shipping and customs documents.
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Types, materials & fitment — standard, rock and tiger teeth, manganese steel grades, numbers and pin sizes for major brands.
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Hydraulic, oil, fuel and air filters explained — model cross-references, replacement intervals and buying tips for your excavator.
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Track tension, wear inspection, rollers and sprockets — a practical maintenance routine that extends undercarriage life and cuts repair bills.
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Slow lifting, overheating, leaking cylinders — how to diagnose common wheel loader hydraulic problems and which parts to check or replace.
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Compare running costs, indoor use, emissions and maintenance to choose the right forklift power source for your operation.
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Paperwork, walk-around checks, engine and hydraulic tests — a practical checklist that helps you avoid buying a machine with hidden problems.
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Impact or abrasion? How manganese steel work-hardens in rock and alloy steel resists sandy ground — and how to choose between them.
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Packaging, filter paper, bypass valve, seals and price — how to tell a genuine filter from a counterfeit before it damages your machine.
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Rock type, feed size, manganese grade, crusher settings and operating habits — what decides how long jaw plates last.
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Bore, stroke, mounting, seals, testing and lead times — what to specify when ordering custom cylinders from a manufacturer.
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Catalog coverage, vs aftermarket quality, stock, delivery and communication — vetting a supplier before you place an order.
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Part numbers, MOQ, payment terms, shipping and customs documents — importing machinery parts from China without costly mistakes.
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Measure grouser height, bushings, tension and sprockets — and know when replacing undercarriage parts is cheaper than running on.
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Seal leaks, drift, bent rods and scored barrels — how to decide between rebuilding a cylinder and buying a new one.
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How construction fleets in the UAE, Saudi Arabia and Africa source excavator parts — suppliers, shipping, customs and heat-duty checks.
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Compare local stockists, dealers and direct imports from China — what to verify before ordering parts in the UAE, Singapore and India.
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Where used excavators are sold, how prices are built and the costs buyers forget — freight, duty, inspection and reconditioning.
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Radiator, hydraulic oil cooler and fan — how the cooling system works, the early failure signs and when to replace parts.
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Main pump and pilot pump explained — failure signs, OEM vs aftermarket choices and what to verify before you buy.
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Sizes, hours, undercarriage and hydraulics checks, transport and paperwork — buying a used mini excavator in the UAE.
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Radiator failure signs, core types, part numbers and fitment checks — replacing an excavator radiator without repeat failures.
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Pistons, liners, gasket kits and filters for Cat C7, C15 and C18 engines — part number matching and OEM vs aftermarket buying tips.
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Pin sizes by machine class, how to measure wear, and how to order the right pin, bushing and circlip sets for your bucket.
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Overheating, coolant loss, bulging tanks and oil in coolant — five early warnings that catch a failing radiator before it kills the engine.
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Standard, rock, tiger and twin-tip teeth compared — plus wear limits and the replacement rules that protect your adapters.
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Oil temperature spikes, core leaks and clogged fins — how to diagnose a failing hydraulic oil cooler and replace it without repeat failures.
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Real price gaps by part category, quality checks and supplier vetting — deciding when aftermarket excavator parts are the smart buy.
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No airflow, noisy fan clutch, cracked blades — how to diagnose a failing cooling fan and replace it with the right clutch or fan motor.
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ATAAC vs jacket-water aftercoolers on Cat and Komatsu engines — how to tell them apart, spot failure early and order the right core.
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Pistons, liners, gasket kits, filters, AVRs and governors for Cat C4.4–C18 gensets — what wears out, prices and serial-number matching.
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Undercarriage, buckets and cylinders are safe used buys; filters, seals and pumps should always be new — with used vs new aftermarket price comparisons.
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Payload, towing and parts on the used diesel workhorses - Hilux double cab 4x4 at 1,050-1,060 kg and 2,250 kg braked towing, Isuzu KB at 962 kg in double cab against 1,221 kg in single cab, NP300 Hardbody at 927 kg and 1,400 kg - plus why the same cab can carry more or less depending on drivetrain, and the six checks that matter on a used unit.
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Fuel economy, torque, safety and resale compared for mining duty — plus Great Wall, JMC and Foton options for DRC, Nigeria and Saudi Arabia.
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The six-step export process, documents that clear customs, and real landed costs for used pickups shipped to DRC, Nigeria and Saudi Arabia.
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Wear part categories, OEM vs aftermarket pricing and the five checks that separate a foundry-backed mining parts supplier from a middleman.
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Hydraulic oil filter 207-60-71181, return filter 20Y-60-41130, air filter 600-185-4100 — the OEM part numbers, fitment notes and service points for the PC200-8.
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Heat transfer, weight, repairability and price of copper-brass vs aluminium cores — how to tell what your excavator has and what to order.
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Cat radiator part numbers for 320D, 330D and 336D excavators — 326-3870, 245-9359 — replacement costs and why fitment is confirmed by serial number.
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What sells in each market — mining-belt double-cabs in the DRC, Lagos used-import volume in Nigeria, contractor fleets in Saudi — with price benchmarks.
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What sits in the cooling stack — radiator, oil cooler, intercooler, fan clutch — with verified Cat and Komatsu numbers (326-3870, 245-9359, 20Y-03-41651) and 2026 prices.
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Where the official Komatsu catalog lives, how numbers are structured (20Y prefix = PC200-8) and verified PC200-8 numbers — 207-60-71181, 20Y-03-41651.
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Which channel wins for which part — OEM dealer, China aftermarket exporter, online marketplace or used — with verified 2026 prices and how to order without paying twice.
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What drives 2026 demand for excavator and loader parts — aging fleets, mining growth, and verified prices for filters, radiators and undercarriage.
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When to buy genuine OEM and when a cross-referenced aftermarket part is the smart buy — Cat/Komatsu part numbers, dealer pricing and authenticity checks.
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Which Chinese diesel pickup to import — models, FOB prices ($11,000–16,000), dealer networks, parts support and resale compared market by market.
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How to buy used light trucks and pickups through a China sourcing agent — inspection, export documents, freight costs ($2,000–4,000/unit to West Africa) and payment safety.
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What a cylinder seal kit contains, why you always replace the whole set, and how to identify the right kit for your Cat or Komatsu cylinder — by stamped number or bore/rod measurements.
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How distributors buy excavator and loader parts wholesale from China — verified 2026 price bands (30-60% below OEM list), volume ordering and container consolidation.
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Which filters fit both generations of Komatsu's 20-tonne class — the shared 207-60-71181 hydraulic filter, the fuel-filter split (600-311-9121 vs 600-319-3750) and the ordering rules that stop wrong parts arriving.
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Every service filter for the C6.4-powered 320D in one source-checked list — engine oil 1R-0739, fuel 1R-0751, water separator 326-1644, air 131-8821/131-8822, return filter 179-9806 — plus the serial rules that stop the wrong element arriving.
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Why excavator fuel filters fail early when the diesel — not the filter — is the problem: the symptoms in order, fuel filter vs water separator roles, and the verified Cat 320D (1R-0751 + 326-1644) and Komatsu PC200 numbers.
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When to change an excavator air filter and the numbers that fit: the load-up signs in the order you notice them, Cat 320D outer 131-8822 / inner 131-8821, Komatsu PC200-8 600-185-4100, and the cleaning habits that cost engines.
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Why a 20-tonne excavator takes three hydraulic filters, not one — what the pilot, case drain and return elements each protect, the load-up symptoms in order, and the verified Cat 320D and Komatsu PC200-8 numbers.
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How Cat and Komatsu filter numbers are built, the cross references we have verified against more than one source, and the three checks that stop a wrong-element delivery.
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Why a 320D and a 320D2 share almost none of their service filters — the serial-prefix map from Cat's parts reference guide, the cartridge oil element that replaced the spin-on can, and the verified cross numbers for both sets.
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Three fuel numbers for one badge. How to tell a cartridge element from a threaded spin-on by looking in the filter head, which separator belongs with each element, and the verified cross references for all three.
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Three air cleaners under one badge. The round 131-8822 on the 320D, the round 528-7222 on the 320D2 and 320E, and the non-round 479-8989 with 479-8991 on the current 320, 320 GC, 320 GX and 323 — with the sizes and the cross numbers that hold up.
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One D6N badge, two air cleaners. The square housing takes 539-6920 with 346-6694 behind it; the round canister takes 528-7222 with 529-0132 — with Cat's published element sizes and the serial prefix groups that decide it.
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A D6N does not carry one filter list. It carries one per serial prefix group and, on the air side, per housing shape. Every number on the machine in one place, with the aftermarket crosses we can show a published source for.
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Two numbers, one element. Cat publishes identical figures for both, but only 346-6693 appears on the 966F and 966F II fitment list — and 346-6694 is bought with either one.
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Three positions, two engine generations. The 4448402 hydraulic element (also sold as 4443773), the 4649267 fuel element on the 4HK1X machines, and the 4286128 with 4286130 air cleaner pair that both generations share — with the published sizes and the cross numbers that hold up.
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The -8 machine runs two fuel elements, not one: 600-319-3610 at stage 1 and 600-319-3750 at stage 2 — with the published sizes and threads that tell them apart, the machines each number fits, and why the widely-quoted 600-311-8321 does not belong on a PC200-8.
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One 320D badge, two air filter pairs. Cat's 320D parts reference guide puts 6I-2501 with 6I-2502 in air cleaners without a dust valve, and 131-8822 with 131-8821 in those with one — with the element sizes, the UHE upgrades and the checks that settle it.
Read Guide →Send us your part number, model or drawing — we reply with a quotation within 24 hours.