Early models / B / C series
CAT 320B and 320C spare parts. For earlier-generation machines, include the exact base model or L/LN designation as printed on the identification plate.
Parts enquiries for CAT 320, 320B, 320C, 320D/D2/D3, 320E/F, 320 GC and 320 GX. Find hydraulic, undercarriage, engine, filter and electrical parts; we check part references against your machine serial number before confirming fitment.
Looking for CAT 320 excavator parts from a supplier in China? MAOQING PARTS helps equipment dealers, repair workshops and contractors submit consolidated enquiries for CAT 320-series spare parts. Request hydraulic pumps, drive sprocket rims, track rollers, engine components and filters using the machine serial number and your parts list. We check the sourcing options and confirm part references before a quotation is finalized.
CAT 320 model names cover multiple generations, including B, C, D/D2/D3, E, F, GC and GX variants. Parts are not automatically interchangeable. Serial number, engine and component arrangement take priority over generic model listings. Availability, OEM/genuine status and exact compatibility are confirmed individually before an order.
Choose the model shown on your excavator identification plate to start an enquiry. The links below pre-fill our RFQ form with your machine model; add the machine serial number, original part number, quantity and destination before submitting. Listed models are enquiry categories, not a stock list or a guarantee of parts compatibility.
CAT 320B and 320C spare parts. For earlier-generation machines, include the exact base model or L/LN designation as printed on the identification plate.
CAT 320D, 320D2 and 320D3 spare parts. These names distinguish different generations and region-specific variants. Confirm the full suffix and serial number.
CAT 320E and 320F spare parts. For E- and F-series machines, share the exact variant and the original part reference whenever available.
CAT 320 GC and 320 GX spare parts. The newer plain 320 model designation is different from an early-generation 320; use the machine serial number to identify it.
Important: Model designations such as 320, 320D, 320D2 and 320 GC do not establish shared part numbers. Suffixes such as L, LN and GC, regional configurations, serial number prefixes and part revisions can affect the correct selection. We confirm sourcing options and exact fitment individually before order confirmation.
Already have a part number? Browse our separate CAT 320D2 GC reference catalog or open the individual part pages below. These are sourcing references, not confirmation of fitment, stock, genuine origin or compatibility with other CAT 320 models. Please provide your machine serial number when requesting a quote.
Reference listing for part number 322-3155. Check the machine and engine arrangement before ordering.
Reference listing for part number 438-5386. Confirm applicability using the engine and machine serial number.
Reference listing for part number 528-7222. Check the complete filter arrangement before ordering.
Browse the existing part-number catalog, then send your Excel parts list, model, serial number, quantities and destination for a consolidated sourcing review.
Part-number note: Published reference pages are intended to help buyers locate and specify components. The listings do not imply that 322-3155, 438-5386 or 528-7222 fit every CAT 320-series excavator, nor do they establish inventory, OEM status or interchangeability.
For CAT 320 excavator engine repairs and service, identify the engine arrangement and machine serial number before ordering. A model name alone may not identify the correct part.
Gasket kits, sealing components and overhaul enquiries.
Request QuoteQuote by engine arrangement, confirmed part number and quantity.
Request QuoteFor main pumps, control valves, swing drives and travel motors, share the component nameplate or existing part number. Hydraulic configurations can vary by model and serial number.
Complete pump enquiries or repair components; supply pump nameplate details.
Request QuoteProvide side (left/right) if relevant, existing P/N and photos.
Request QuoteRequest a quote with machine serial number and assembly markings.
Request QuoteHydraulic control components and sealing kits by reference.
Request QuoteIf you are searching for CAT E320, 320B, 320C or 320D sprocket rims, send a part number or clear measurements and photos. Track pitch, bolt pattern and undercarriage arrangement must be checked before supply.
Confirm rim/segment design, bolt-hole pattern and machine serial.
Request QuoteInclude roller position, dimensions and reference P/N if available.
Request QuoteCheck assembly style, dimensions and undercarriage version.
Request QuoteSpecify track link count, shoe width, bolts and required quantities.
Request QuoteAsk for oil, fuel, air or hydraulic filters by part number. One example reference below has a manufacturer-documented description; fitment to an individual machine still requires checking.
CAT identifies P/N 1R-0739 as a standard-efficiency engine oil filter. Confirm the exact machine/engine arrangement before ordering.
Request QuotePrimary and secondary filters as required by your engine configuration.
Request QuoteAvoid relying on a machine family name alone for electrical spares. Voltage, connector, software/harness configuration and part-number revisions may differ.
Confirm the precise monitor assembly reference and connector photos.
Request QuoteTell us the function, fault code if available, and serial number.
Request QuoteFor CAT 320 excavator parts across B/C/D/D2/D3/E/F/GC/GX models, a usable reference is more valuable than a long list of approximate matches. Share whichever of the following you have:
For a multi-item BOM, email sales@maoqingparts.com with your Excel sheet, or paste the part numbers into our RFQ form. Actual quotations will state confirmed quality option, prices and availability.
No blanket interchangeability can be assumed. Even machines with similar model names can use different engines, hydraulic arrangements, undercarriage configurations or revised components. Share the serial number and part reference to verify each item.
No. The D, D2 and D3 labels identify different machine series or revisions. The series name helps narrow the search, but does not by itself establish part interchangeability or current availability.
The plain 320 designation has been used across different generations of Caterpillar excavators. The serial number and exact machine configuration help distinguish them for accurate parts sourcing.
Send the undercarriage part number if you have it. Otherwise, provide clear photos, dimensions and your machine serial number. For sprocket rims, bolt pattern and tooth configuration can also matter.
Yes. An Excel or text parts list with descriptions and quantities is the most efficient way for us to check a consolidated sourcing enquiry.
Tell us your preferred quality requirement. We can check which supply options are available for each enquiry and identify the quoted part type explicitly. We do not assume that an alternative is equivalent without review.
You can enquire using clear component photos, a machine or component nameplate and a description of the part. Exact identification may still require follow-up information.
MAOQING PARTS is an independent spare-parts sourcing company. CAT and Caterpillar are trademarks of their respective owner; their use here identifies the machines and components being requested. No affiliation or endorsement is implied. Model identifiers are included to help buyers submit an enquiry; they are not claims of universal stock or cross-model fitment. Product applicability, quality option and availability are subject to individual verification. Example reference 1R-0739 is identified as an engine oil filter by the official Cat parts catalogue; this does not establish fitment to every CAT 320 machine.
Send part numbers, quantities and your destination. We'll review the request and reply with sourcing options, pricing and lead time after verification.