Identity gate
Record one continuous walk-around from PIN and engine plate to monitor, boom, counterweight and complete machine. A contract should name the same identifiable unit.
20-TON CONTRACTOR FIELD BOARD · CAT 320D
Yes. Buyers can purchase a used CAT 320D through YUANJIAN in China. We can reconfirm a listed unit or source another CAT 320D to match the requested year, condition, budget and destination port, then arrange agreed inspection evidence and an FOB or CIF export quotation. Final availability and the exact machine identity are confirmed before payment.
Caterpillar primary references and current YUANJIAN public listings reviewed 27 August 2026. Specifications vary by serial range, market and arrangement.
A verified CAT 320D remains a practical export choice for general earthmoving, drainage, roadwork and truck loading where independent CAT parts and service are available. Choose 320D2 when a later regional configuration is properly documented; choose 320GC when lower-intensity production and a newer platform matter more than the lowest purchase price. Walk away when the seller cannot keep the PIN, engine, hour display, attachments and complete machine in one continuous inspection record.
The family name does not make the machines interchangeable. The official non-current Caterpillar page identifies the 320D with a Cat C6.4 ACERT engine; current 320 specifications belong to a later generation and must not be copied onto a 320D sales sheet.
| Model | Best reason to shortlist | Main trade-off | Evidence before choosing |
|---|---|---|---|
| 320C | Lower acquisition cost and familiar mechanical base | Older age and larger condition spread | Cold start, pump, final drives, frame and parts support |
| 320D | Balanced 20-ton contractor choice | Used quality varies more than advertised year | PIN continuity, C6.4 identity, warm cycles and rodaje measurement |
| 320D2 | Later regional D-series option | Specification differs by market | Full suffix, engine plate, controller faults and local parts match |
| 320GC | Newer low-cost-per-hour concept for moderate work | Higher purchase price and different electronics | Actual job cycle, dealer support and emissions configuration |
| 323D | More production and lift margin | Higher fuel, transport and wear cost | Truck match, bucket size, undercarriage and hydraulic temperature |
Record one continuous walk-around from PIN and engine plate to monitor, boom, counterweight and complete machine. A contract should name the same identifiable unit.
Start genuinely cold, then work until hydraulic oil is hot. Compare simultaneous functions, engine recovery, cylinder drift, swing brake and travel on both sides.
Measure rail height, link pitch, bushings, sprockets, rollers and idlers. Convert remaining life into a repair allowance instead of accepting a percentage guess.
Price the actual machine, bucket, loading method, inland haul, sea freight, destination charges and reassembly. A low machine price can be erased by repairs or transport.
Inspect boom foot, arm, bucket linkage, slew frame and counterweight area for cracks, plating, heat marks and concealed repairs, especially after hammer work.
Tie deposit and balance milestones to identity evidence, agreed inspection findings and loading records. Do not accept a contract that allows substitution of an equivalent machine.
Yes, when local parts support is strong and the inspected unit performs evenly when hot. Compared with a cheaper 320C, the 320D can offer a more attractive balance of generation and resale; compared with a newer 320GC, it normally requires less initial capital but more condition risk. The model name alone does not create value.
Selection: Choose the 320D whose repair-adjusted landed cost is lowest, not the one with the lowest advertised hours.
General excavation, road construction, drainage, foundations and truck loading are the natural use cases. A 320D is more productive than a compact machine where access is open, but a 30-ton machine can outperform it in continuous heavy rock. Bucket, material density, truck height and cycle distance matter more than a generic tonnage label.
Selection: Use 320D for mixed contractor work; move up a class for sustained quarry production.
320D2 is a later regional development, but its exact engine and emissions arrangement depends on market. It is not automatically a better used purchase: a tight 320D can cost less per productive hour than a worn 320D2. Compare serial-specific parts availability, controller access, fuel system health and actual warm performance.
Selection: Pay a D2 premium only when identity, condition and local support are demonstrably better.
No. The hour display can be replaced or altered, and low hours can conflict with worn pedals, pins, track links, controller history and service labels. Build a condition score from independent evidence and ask for continuous video that connects the display to the identifiable machine. Treat unexplained conflicts as pricing risk.
Selection: Value from measured wear and system tests; use hours only as one supporting signal.
Ignoring the undercarriage is often the largest visible mistake, while ignoring warm hydraulic weakness can be even more costly. A fresh track shoe does not prove healthy rails, rollers or idlers. Compare full undercarriage replacement allowance with pump, valve and cylinder leakage risk before ranking offers.
Selection: Require measurements and a hot test before discussing the final price.
Repaint is not automatically bad, but it can hide welds, leaks and component mixing. Look for overspray on hoses and wiring, inconsistent fasteners, new plates, disturbed harnesses, sealant changes and paint over dirt. Then ask what work was performed, by whom and with which parts; appearance is not a repair record.
Selection: Accept refurbishment only when the repair scope and post-repair test are documented.
Only after checking auxiliary circuit setup, oil cleanliness, boom and arm structure, slew bearing play and cooling performance. Compared with digging, hammer work can load the front structure and contaminate hydraulic oil more severely. A machine with previous breaker use can still be suitable if setup and maintenance were correct.
Selection: For frequent hammering, prioritize structure and hydraulic evidence over cosmetic condition.
It should identify one machine, full model suffix, PIN evidence, engine identity, included bucket and attachments, inspection scope, known defects, FOB or CIF basis, validity period, loading method and payment milestones. A bare price cannot be compared because repair, freight and destination charges may be shifted later.
Selection: Choose the quotation with the clearest obligations and unit-specific evidence, even when it is not the cheapest opening number.
Ask YUANJIAN to confirm one of these public listings or source another CAT 320D-family unit in China. We match the requested model, budget, condition and port, but reconfirm availability, identity and final specifications before deposit. Public prices exclude inspection, inland logistics, ocean freight, duty and destination delivery.

Current public listing; year, hours and condition require unit-specific reconfirmation.
$22,000 USD
Current public listing; year, hours and condition require unit-specific reconfirmation.
$20,000 USD
Current public listing; year, hours and condition require unit-specific reconfirmation.
$24,000 USD
Current public listing; year, hours and condition require unit-specific reconfirmation.
$48,000 USD
Current public listing; year, hours and condition require unit-specific reconfirmation.
$24,000 USDCaterpillar identifies the 320D as a non-current model with the Cat C6.4 ACERT engine. The current 320 page is included only to prevent buyers from confusing later-generation specifications with the 320D; it does not certify a used machine.
Yes. YUANJIAN can confirm a listed CAT 320D or source another unit in China, arrange inspection under an agreed scope and quote FOB or CIF to the destination port. Availability and exact machine identity are reconfirmed before payment.
No. They are different generations. Do not copy current CAT 320 power, technology or emissions specifications onto a 320D.
Caterpillar's non-current record identifies the Cat C6.4 ACERT engine; verify the plate and serial-specific arrangement on the offered unit.
Only when disclosed and supported by controller, service and wear evidence. A new display cannot reconstruct machine history.
YUANJIAN provides free pre-purchase information consultation and optional paid inspection under an agreed scope and location.
No. Public product price is a reference. CIF requires destination port, freight basis, insurance and a validity period.
Not under a unit-specific contract. The PIN and evidence package should identify the machine that must be delivered.
Independent used-equipment buying guidance. CAT and Caterpillar are trademarks of Caterpillar Inc. YUANJIAN MACHINERY INTERNATIONAL TRADING LIMITED is an independent used-machinery supplier, not an authorized Caterpillar dealer.