Sprocket suitable for JCB 805 806 mini excavators
KERTRACK

Sprocket suitable for JCB 805 806 mini excavators

Catalog number:SKX293705KR Nr OEM:331/18047 Manufacturer:KERTRACK
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NEXGEN SPROCKET (19T / 12H / 230MM) SUITABLE FOR JCB 8052-8065 - 334/S3144

Technical Specification and Compatibility

A critical drivetrain component – a brand new drive sprocket by NEXGEN. Designed for JCB 5-6 ton class mini excavators, including 8052, 8055, 8060, and 8065 models. It is manufactured by a company specializing in high-quality undercarriage castings. A multi-stage casting process and precision heat treatment (hardening) are used to guarantee maximum tooth lifespan and wear resistance in the toughest conditions.

Part number: 334/S3144
Alternative part numbers: 331/18047
Teeth: 19
Bolt Holes: 12
Inner Diameter (Bore): 230 mm

NEXGEN is a leading supplier of undercarriage components. By choosing this brand, you invest in precision-made castings and hardened elements, which translates to reduced friction, longer service life, and lower operating costs.

Essential for Installation

  • › Mounting Bolts (12 pcs): Always use new, high-tensile bolts to mount the sprocket to the final drive.
  • › Torque Wrench: Required to tighten the bolts to the correct manufacturer specification.

Application in machines

Brand Type / Series / Model
JCB Mini Excavators: 8052, 8055 RTS, 8055 ZTS, 8056, 8060, 8061, 8065 DL, 8065 RTS

The list above is for reference. We recommend verifying the tooth count (19T), bolt hole count (12H), and inner diameter (230mm) before purchasing.

⚠️ Safety Warning

Before working on the undercarriage, ensure the machine is on stable, level ground and is properly secured against rolling. Always follow the service manual procedures for releasing and re-tensioning the tracks.

Part's Role in the Machine and Failure Diagnostics

The sprocket is one of the key wear components of a track undercarriage. It transfers power from the final drive to the chain, setting the machine in motion. A worn sprocket leads to accelerated wear of the entire undercarriage.

  • › Sharpened tooth tips ("shark tooth" profile).
  • › Track "jumping" or "skipping" when turning or under load.
  • › Damage to the track chain bushings (due to poor meshing with the worn sprocket).
  • › Loose bolts fastening the sprocket to the final drive (risk of shearing).

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🔧 Expert's Guide: Key Installation Tips

  1. Replace in pairs: Sprockets should always be replaced in pairs (left and right) to ensure even wear and proper tracking of both chains.
  2. Replace with chains: Installing new sprockets on old, stretched track chains is not recommended. It will cause accelerated wear of both the new sprockets and the old chains.
  3. Clean the mounting surface: Thoroughly clean the mounting surface on the final drive of all rust and dirt before bolting on the new sprocket.
  4. Torque Specifications: Use a torque wrench and tighten the 12 mounting bolts in a star pattern to the manufacturer's specified torque.

Frequently Asked Questions (FAQ)

1. Can I replace just one sprocket?

This is highly discouraged. The new sprocket will have a different working diameter than the old, worn one on the other side. This can cause the machine to "pull" to one side when tracking straight and will cause uneven wear on both tracks and final drives. Always replace sprockets in pairs.

2. Will this fit a JCB 8025ZTS or 8030ZTS?

No. This model (334/S3144) is for the larger 5-6 ton class mini excavators (8052, 8055, 8060, 8065). The smaller 8025ZTS or 8030ZTS machines use different sprockets with different dimensions and tooth counts.

3. What does 19T / 12H / 230mm ID mean?

These are the key identifiers: 19 Teeth (that engage the chain), 12 Holes (for mounting bolts to the final drive), and 230 mm Inner Diameter (the bore size).

Znak zapytania

Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.

SKX293705KR
331/18047
20.00 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
MINIEXCAVATOR
OEM NUMBERS
331/18047 / 334/S3144
NUMBER OF TEETH
19

Specific References

MPN
331/18047
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Sprocket suitable for JCB 805 806 mini excavators

Catalog number: SKX293705KR
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gross price

436.65 zł

net price
355,00 zł
Available in large quantity Temporarily unavailable
355,00 zł
net price

436.65 zł

gross price
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  • You will receive 36 points, it gives you 14.40 zł
  • Lowest price from 30 days before the discount: 436.65 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    MINIEXCAVATOR
    OEM NUMBERS
    331/18047 / 334/S3144
    NUMBER OF TEETH
    19

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