Track Adjuster Grease Cylinder for Caterpillar 320D 239-4382

As the manufacturer and supplier from Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we focus on delivering stable and durable undercarriage components for real working conditions.

The Track Adjuster Grease Cylinder for Caterpillar 320D 239-4382 is not just a replacement part—it is the core component that keeps your track system tight, stable, and safe under heavy excavation loads.

When track tension fails, machines immediately suffer from derailment risk, uneven wear, and unexpected downtime. In real field feedback from our clients in mining and earthmoving projects, more than 70% of track failures are linked to low-quality sealing systems and cylinder bore wear.

Key Function

The grease cylinder is responsible for:

Maintaining constant track tension under load changes

Absorbing impact from front idler movement

Preventing track slack during long working hours

Supporting stable movement in mud, rock, and uneven ground

Without a reliable cylinder, even a Caterpillar 320D cannot maintain its designed performance.

Technical Specification

OEM Reference: 239-4382

Compatible Model: Caterpillar 320D / 320C / 323D

Product Type: Track Adjuster Grease Cylinder / Tensioner Cylinder

Material: Heavy-wall seamless steel tube

Seal System: High-pressure polyurethane sealing kit

Surface Treatment: Anti-corrosion hard chrome piston rod

Product Features

1. Real Honed Inner Bore Precision

We use controlled honing equipment to achieve a mirror-level inner surface. In field use, this reduces seal friction and prevents slow leakage—one of the most common failure points in low-cost cylinders.

2. Seal Stability Under Shock Load

Many aftermarket cylinders fail when the front idler hits rock or hard soil. Our sealing system is tested for high-pressure spikes, keeping grease retention stable even under sudden impact.

3. Chrome Rod Protection in Harsh Environment

Compared with ordinary polished rods on the market, our hard-chrome layer resists rust, mud corrosion, and scratching caused by abrasive dust.

4. Structural Strength That Prevents Deformation

We use thick-wall seamless steel instead of welded tubes commonly seen in low-price alternatives. This eliminates weak welding points and improves long-term pressure resistance.

Comparison With Other products

In our export experience, we often receive feedback from customers switching from low-cost suppliers:

Low-end cylinders: seal leakage within 3–6 months

Standard market parts: unstable tension after heavy mining use

Our cylinder: stable pressure retention, longer service cycle, reduced maintenance frequency

The real difference is not appearance—it is pressure stability and sealing life in continuous operation.

Application

The Track Adjuster Grease Cylinder for Caterpillar 320D 239-4382 is widely used in:

Mining operations

Quarry projects

Heavy construction sites

Earthmoving engineering

Infrastructure development

Factory  Manufacturing Experience

We do not outsource key processes. Every cylinder is produced under our controlled production line:

Forging and forming

CNC precision machining

Heat treatment strengthening

Assembly and pressure testing

Each unit is tested before shipment to ensure no leakage under working pressure conditions.

Packaging

For export safety, every unit is:

Anti-rust coated before packing

Fixed on reinforced fumigation-free wooden pallets

Protected against sea freight vibration and moisture

Why Choose Us ?

From long-term cooperation experience, customers choose us because:

Stable quality consistency across batches

Direct factory supply without middle markups

OEM customization available for sealing and dimensions

Fast response from engineering support team

We focus on real industrial reliability, not just product appearance. 

Contact for Inquiry

We support global B2B buyers, dealers, and machinery service companies.

Export Manager: Wu

WhatsApp / Mobile: +86 13799896866