The CAT320 track link assembly is a complete undercarriage solution designed for Caterpillar 320 excavators. It ensures smooth movement, high durability, and reliable performance in construction and heavy-duty working conditions.

The Mitnik CAT320 Track Link Assembly is engineered for Caterpillar 320 excavators, providing a durable and reliable solution for undercarriage systems.
This track chain assembly is manufactured using high-quality alloy steel and advanced heat treatment processes to ensure excellent wear resistance and long service life. The links, pins, and bushings are precisely machined to deliver smooth operation and reduce friction during movement.
Designed to withstand harsh working environments such as construction sites, quarries, and earthmoving operations, the CAT320 track link assy ensures stable machine performance and reduces maintenance frequency.
Available in both lubricated (sealed & lubricated) and dry chain options, it can meet different operating requirements and budget needs.
As an OEM-quality replacement part, it provides accurate fitment and easy installation, helping customers improve efficiency and minimize downtime.
| APPLICABLE MACHINE MODEL | LINK PITCH(mm) | LINK QUANTITY | LINK HEIGHT | THICKNESS OF SHOE |
| SD16,D60/D65, SEM816/818 | 203 | 37L/39L/42L/44L | 116 | 12/14/15 |
| D65E-12/D85ESS-2/D65PX-12 | 203 | 39L/42L/45L | 125 | 12/14/15 |
| D6R/D6HHD,PR734/PR736 | 203 | 39L/40L/41L/45L | 132 | 12/14/15 |
| D7G,D80/D85/D85ESS-1,SD22/23, LIUGONG 230,SEM822D | 216 | 38L/39L/40L | 125/129 | 14/17/19 |
| D8N//R/T/L, PR756 | 216 | 44L/45L | 150 | 14/17/19 |
| SD32,D155-1 | 228 | 41L | 138 | 17/19 |
| D155-2/5/6 | 228 | 41L | 144 | 17/19 |
| D9L,PR754 | 228 | 47L/44L | 161 | 17/19 |
| D9N/R/T,PR764 | 240 | 43L/44L | 166 | 17/19/20 |
| D355 | 260 | 39L/42L | 156 | 20.5/23 |
| D275-5 | 260 | 39L | 166 | 20.5/23 |
| D10N/R/T,PR776 | 260 | 44L | 181 | 20.5/23 |
| D375-5/6, PR784 | 280 | 40L/41L | 181 | 23 |
| D11/N/R/T | 317 | 41L | 198 | 25/28 |
| D475-2 | 317 | 39L | 199 | 25/28 |
| D475-5 | 317 | 41L | 199 | 25/28 |

Choose MITNIK Undercarriage Parts-Better Quality, Longer Using Life!
In order to firm design makes the track link longer wear life and resistance characteristics of stress.
The surface and advanced of link, pin and bush was through high degree quenched has a hard wearing life.

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MITNIK MACHINE PARTS is the worldwide leader Bulldozer & Excavator Undercarriage Manufacturer in replacement parts and original parts and accessories for Engineering Machine, Construction Machine, Industrial Truck and Agricultural Equipment over 20 years old, and MITNIK can do OEM&ODM for engineering machine parts. Our mission is to provide excellent products and service to our customers, at competitive prices. We stock an extensive range, so, whether you are looking for a single tractor part or wholesale replacement parts MITNIK MACHINE PARTS has it covered. MITNINK MACHINE PARTS-MMP is an excellent source for original and aftermarket components and parts. We can provide the main major road construction machine parts and excavator&bulldozer parts. MITNIKMACHINEPARTS-MMP is an excellent source for used, rebuilt, refurbished and aftermarket components and parts. We can provide the main major road construction machine parts and excavator&bulldozer parts brands such as: Komatsu Caterpillar Volvo JCB Terex. Kobelco Hyundai Doosan John Deere Hitachi Takeuchi Sanyi MITNIK MACHINE PARTS, new spare parts range for heavy construction equipment focuses on excavator&bulldozer undercarriage, engaging tools, engine parts, hydraulic parts, dump truck parts, concrete machine parts. Within those spare parts, key attention lies on parts for the makes Bobcat, Case, Caterpillar, JCB, Takeuchi, John Deere, Kubota, Volvo and Yanmar etc...., while also offering extensive lookup services for other brands. We have more than 3 million parts on hand across more than 30,000 different part types covering all makes and models. MISSION MITNIK MACHINE PARTS-MMP to offer integrated and value-added part supply and full lines of equipment parts solution to our partners and customers with assuranced quality parts. SERVICE MITNIK MACHINE PARTS-MMP with one-stop shopping platform for engineering construction machinery parts as MITNIK have our own factory and storage warehouse and some parts of them were supply by our Joint Stock Partnership to ensure to provide excellent products and service to our customers, at competitive prices. To offer an excellent source for used, rebuilt, refurbished and aftermarket components and parts. We can provide Construction Machine, Heavy Equipment, and related Equipment Parts sucha as road construction machine parts and excavator&bulldozer parts etc..... QUALIFEID Our company has established a complete quality control system. We have several labs with all kinds of Mechanic & Chemical Property Testing Equipments. We do IQC, IPQC, FQC to guarantee our quality. Our company are certified ISO9001:2008,ISO14001:2004 and OHSMS18001. We have won many honors, such as “ Product and Service Recommended Enterprises”,“Quality Management Advanced Enterprise”, etc.

MITNIK MACHINE PARTS is the worldwide leader Bulldozer & Excavator Undercarriage Manufacturer in replacement parts and original parts and accessories for Engineering Machine, Construction Machine, Industrial Truck and Agricultural Equipment over 20 years old, and MITNIK can do OEM&ODM for engineering machine parts. Our mission is to provide excellent products and service to our customers, at competitive prices. We stock an extensive range, so, whether you are looking for a single tractor part or wholesale replacement parts MITNIK MACHINE PARTS has it covered. MITNINK MACHINE PARTS-MMP is an excellent source for original and aftermarket components and parts. We can provide the main major road construction machine parts and excavator&bulldozer parts. MITNIKMACHINEPARTS-MMP is an excellent source for used, rebuilt, refurbished and aftermarket components and parts. We can provide the main major road construction machine parts and excavator&bulldozer parts brands such as: Komatsu Caterpillar Volvo JCB Terex. Kobelco Hyundai Doosan John Deere Hitachi Takeuchi Sanyi MITNIK MACHINE PARTS, new spare parts range for heavy construction equipment focuses on excavator&bulldozer undercarriage, engaging tools, engine parts, hydraulic parts, dump truck parts, concrete machine parts. Within those spare parts, key attention lies on parts for the makes Bobcat, Case, Caterpillar, JCB, Takeuchi, John Deere, Kubota, Volvo and Yanmar etc...., while also offering extensive lookup services for other brands. We have more than 3 million parts on hand across more than 30,000 different part types covering all makes and models. MISSION MITNIK MACHINE PARTS-MMP to offer integrated and value-added part supply and full lines of equipment parts solution to our partners and customers with assuranced quality parts. SERVICE MITNIK MACHINE PARTS-MMP with one-stop shopping platform for engineering construction machinery parts as MITNIK have our own factory and storage warehouse and some parts of them were supply by our Joint Stock Partnership to ensure to provide excellent products and service to our customers, at competitive prices. To offer an excellent source for used, rebuilt, refurbished and aftermarket components and parts. We can provide Construction Machine, Heavy Equipment, and related Equipment Parts sucha as road construction machine parts and excavator&bulldozer parts etc..... QUALIFEID Our company has established a complete quality control system. We have several labs with all kinds of Mechanic & Chemical Property Testing Equipments. We do IQC, IPQC, FQC to guarantee our quality. Our company are certified ISO9001:2008,ISO14001:2004 and OHSMS18001. We have won many honors, such as “ Product and Service Recommended Enterprises”,“Quality Management Advanced Enterprise”, etc.
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