Excavator Track Adjuster Cylinder Assembly for Caterpillar E320D
High-performance track adjuster assembly for Caterpillar E320D excavators. Built with precision-machined components, wear-resistant materials, and leak-tested for long-term durability in tough environments.
| Piston Rod | 40Cr / 42CrMo (Hard Chrome Plated) |
|---|---|
| Cylinder Body | Q345 / 45# Steel / 40Cr |
| Return Spring | 60Si2Mn / 65Mn Spring Steel |
| Cylinder Head / End Cap | 45# Steel / Cast Steel |
| Grease Nipple & Fittings | Carbon Steel (Zinc Plated) / Stainless Steel |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
The track adjuster serves as a vital system within the undercarriage of your E320D excavator. Positioned directly behind the front idler, it maintains proper track tension and alignment, ensuring smooth and stable movement over uneven terrain. By absorbing shocks and reducing the stress placed on the track chain, idlers, and rollers, it helps avoid derailment, track slippage, and premature wear—resulting in a safer and more efficient working machine.
Structure Overview with Component Descriptions
This product typically consists of the following:
- Cylinder Body – Heat-treated steel for high compressive strength
- Grease Chamber – Allows grease injection to push the piston forward and increase track tension
- Recoil Spring – Absorbs impact loads and allows for dynamic adjustment
- Piston Rod – CNC-machined for tight tolerance and smooth movement
- Front Support Eye / Mounting Block – Ensures secure alignment with the idler
- Sealing System – Multi-layer oil and dust seals to prevent contamination and leakage
We have attached a component structure diagram and a cross-sectional sketch of the adjuster to give you a clear view of its internal workings. These visuals support better installation understanding and reflect the robust build quality of our product.
Manufacturing and Material Details
Our E320D adjusters are crafted from high-tensile structural steel with induction-hardened sliding surfaces, providing both flexibility and impact resistance. The internal cylinder is precision-machined and paired with a corrosion-resistant spring and piston system, ensuring consistent performance even under extreme temperature and pressure.
We also apply anti-rust coatings to all external surfaces to protect against moisture, debris, and corrosion over long-term use. The adjuster is leak-tested and calibrated before dispatch to guarantee durability under high-load operating cycles.
Manufacturing & Quality Control Process
Our tensioning assembly production process includes:
- Material Cutting & Forging – Select steel is forged to shape for strength
- CNC Precision Machining – Accurate dimensional control for seamless fit
- Heat Treatment – Surface hardening improves wear resistance
- Spring Assembly – High-compression recoil springs are installed and tested
- Grease Cylinder Assembly – Internal piston and seals are installed with precision
- Final Assembly & Leak Testing – Units are pressurized and inspected for sealing integrity
OEM Undercarriage Parts for Caterpillar Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| CATERPILLAR-CAT | CAT55 | CAT225 | CAT245 | CAT311 | CAT312 | CAT312B | CAT315 | CAT320 |
| CAT320B | CAT320C | CAT320D | CAT320L | CAT322 | CAT324 | CAT325 | CAT325B | |
| CAT325BL | CAT330 | CAT330B | CAT330BL | CAT330C | CAT330D | CAT345 | CAT345B | |
| CAT973 | E55 | E70 | E70B | E120 | E120-1 | E120B | E140 | |
| E200B | E200-5 | E215 | E240 | E300B | E300L | E311 | E312 | |
| E312B | E320 | E320BL | E320C | E320D | E320DL | E320L | E320S | |
| E322B | E322C | E324 | E324D | E324DL | E325 | E325B | E325L | |
| E329DL | E330 | E330B | E330C | E330D | E330DL | E345 | E345B | |
| E450 | CAT301.5 | CAT302.5 | CAT303.5 | CAT305 | CAT307 | CAT308 | CAT313 | |
| CAT316 | CAT318 | CAT320E | CAT320GC | CAT323 | CAT326 | CAT329 | CAT336 | |
| CAT340 | CAT349 | CAT350 | CAT365 | CAT374 | CAT375 | CAT385 | CAT385CL | |
| CAT390 | CAT390D | CAT390DL | CAT390FL | CAT395 | CAT6015 | CAT6015B | CAT6015D | |
| CAT6020 | CAT6020B | CAT6030 | CAT6030B | CAT6030D | CAT6040 | CAT6040B | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Compatible Models & Part Numbers
This track adjuster is compatible with:
- Caterpillar E320D excavator
- Other CAT 320D series variants with similar undercarriage design
Common OEM Reference Numbers:
- 148-4646
- 1484646
- 201-4111
- 8E-5606
If you are unsure about compatibility, simply share your machine’s model, serial number, or part drawing. Our team will assist in identifying the correct replacement.
Why Choose Our E320D Track Adjuster?
- OEM Fit Guarantee – Matches Caterpillar E320D dimensions and mounting points
- Durability Tested – Components undergo high-load and high-pressure fatigue testing
- Corrosion-Resistant Finish – Ideal for humid, muddy, and abrasive job sites
- Photo & Video Inspection Available – Verify before shipment to ensure peace of mind
- OEM/ODM Support – Branding and custom packaging available for bulk customers
- Quick Dispatch – In-stock parts ready for immediate delivery worldwide
Application Scenarios: Built for Tough Jobs
Whether you’re excavating on rocky terrain, loading in clay-rich soil, or operating under rainy, humid conditions, the E320D track adjuster delivers reliable tension and resistance to environmental stress. Its durability reduces downtime and prevents damage to surrounding components, making it ideal for long-shift, high-demand operations.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
