Track Adjuster Assembly fit Yanmar Excavator Undercarriage Parts

Durable and compact Track Adjuster Assembly engineered for Yanmar excavators, providing smooth tension control, reliable recoil absorption, and long service life across demanding construction environments.

Piston Rod40Cr / 42CrMo (Hard Chrome Plated)
Cylinder BodyQ345 / 45# Steel / 40Cr
Return Spring60Si2Mn / 65Mn Spring Steel
Cylinder Head / End Cap45# Steel / Cast Steel
Grease Nipple & FittingsCarbon Steel (Zinc Plated) / Stainless Steel
ColorsBlack 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.

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Description

The Track Adjuster Assembly used in Yanmar excavators plays a vital role in stabilizing the track system, particularly because Yanmar machines are widely recognized for compact design and agile movement. Unlike heavier crawler excavators, Yanmar models depend heavily on a responsive and precisely tuned adjuster to keep the track chain properly tensioned during fast directional changes, tight-space maneuvering, and constant loading shifts. A reliable adjuster ensures that the undercarriage maintains consistent alignment, reduces vibration, and supports smoother machine travel across varying terrains.

Compact Structural Engineering for Yanmar

Yanmar excavators often operate in restricted job environments—urban construction, landscaping, farming, utilities—where a compact but strong undercarriage is essential. For this reason, the adjuster features a shorter cylinder body, optimized mounting geometry, and a recoil mechanism calibrated for smaller track frames.

The cylinder is constructed from high-strength alloy steel, providing stability despite the limited structural space. Its piston rod undergoes precision hard-chrome plating to resist scratching, corrosion, and mud abrasion—one of the most common causes of seal damage on compact machines. Inside the adjuster, a tightly coiled recoil spring manages sudden shock loads more efficiently by distributing energy evenly, preventing abrupt idler movements and protecting the frame during quick travel starts or sudden digging resistance.

Track Tensioning Function & Performance

The adjuster maintains correct tension by controlling the forward position of the idler. When the excavator travels over uneven surfaces or enters soft ground, the track naturally stretches and compresses. For Yanmar machines, even slight tension fluctuation can significantly affect steering accuracy. This adjuster ensures:

  • smoother idler movement in both extension and recoil
  • reduced risk of track derailing in turns or on slopes
  • minimized wear on track links, sprockets, and rollers
  • better travel stability during fast repositioning

Through carefully balanced hydraulic pressure and refined sealing performance, the adjuster keeps tension consistent even during long continuous work cycles.

The structure of the adjuster assembly

Manufacturing Process & Material Reliability

Every Yanmar-style adjuster follows a strict manufacturing workflow to ensure reliability in compact equipment:

  • The cylinder is forged for internal density and uniform stress distribution.
  • CNC machining ensures precise surface finish for smooth piston travel.
  • The piston rod receives multilayer hard-chrome treatment for mud and impact resistance.
  • High-temperature elastomer seals are installed to maintain pressure over thousands of cycles.
  • Each unit undergoes pressure-holding and recoil-function tests before packaging.

This attention to detail ensures the adjuster performs consistently under the rapid movement and frequent directional changes characteristic of Yanmar machines.

Built for Yanmar Compatibility

This Track Adjuster Assembly is engineered specifically for Yanmar-style undercarriage configurations. Its cylinder travel, pressure resistance, mounting points, and rod dimensions are designed to match Yanmar standards across common models such as VIO series, B series, and SV series. Installation is straightforward due to its compact form factor and accurate interface machining.

Once installed, the adjuster integrates seamlessly with the idler and spring housing, restoring factory-level alignment and responsiveness.

BRAND MACHINERY MODEL NUMBER
YANMAR VIO10 VIO15 VIO17 VIO20 VIO25 VIO27 VIO30 VIO35
VIO40 VIO45 VIO50 VIO55 VIO57 VIO60 VIO70 VIO75
VIO80 VIO85 VIO100 B3 B5 B7 B12 B15
B17 B20 B22 B25 B27 B30 B35 B37
B40 B50 SV05 SV08 SV15 SV17 SV18 SV20
SV22 SV25 SV26 SV30 SV40 SV50 SV60 SV70

Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.

Application Scenarios

Yanmar excavators are widely used in landscaping, municipal engineering, trenching, demolition, small-site construction, and agricultural work. In these environments, a stable track adjuster is essential to maintaining machine balance, avoiding chain slack in muddy areas, and ensuring smooth travel on compacted soil or loose gravel.

The adjuster’s compact recoil system absorbs impacts efficiently, making it highly suitable for machines operating close to structures, inside narrow channels, or along steep ground contours.

Long-Term Durability & Maintenance

The hardened rod surface and reinforced seal package significantly reduce the risks of leakage—one of the leading causes of tension loss in compact machines. Regular cleaning of the adjuster housing and periodic inspection of tension levels can help extend the lifespan of both the adjuster and the surrounding undercarriage components.

Because Yanmar excavators are commonly used for quick-cycle short-distance operations, maintaining correct tension helps improve travel efficiency and reduce fuel consumption.

Shipping & Delivery

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.

excavator parts loading truck 4
excavator parts loading truck 2
excavator parts loading truck 1

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.

BULLDOZER UNDERCARRIAGE PARTS FOR INQUIRY NOW