• Yoke spring and fork suitable for JCB JS330 - 332/K5118
  • Yoke spring and fork suitable for JCB JS330 - 332/K5118
  • Chain tensioner suitable for JCB JS330 - 332/K5118
  • Chain tensioner suitable for JCB JS330 - 332/K5118
  • Chain tensioner suitable for JCB JS330 - 332/K5118
Yoke spring and fork suitable for JCB JS330 - 332/K5118
NEXGEN

Yoke spring and fork suitable for JCB JS

Catalog number:332/K5118A Nr OEM:332/K5118 Manufacturer:NEXGEN
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Track Chain Tensioner suitable for JCB JS330 - 332/K5118

Technical Specification and Compatibility

Track chain tensioner (grease cylinder) with part number 332/K5118 from the NEXGEN offer. It is a key component of the undercarriage, dedicated to heavy JCB crawler excavators model JS330 (manufactured in years 1997-2025). The tensioner is responsible for maintaining proper track tension, which is essential for proper traction and protecting undercarriage components from wear.

Part Number: 332/K5118
Component Type: Track Tensioner Unit
Machine: Crawler Excavator
Tensioning Medium: Grease
Manufacturer: NEXGEN

NEXGEN undercarriage products are characterized by high resistance to extreme pressures inside the cylinder and excellent sealing, which prevents grease leaks and loss of chain tension in difficult terrain conditions.

Features of NEXGEN 332/K5118 Tensioner

Precision Fit: The tensioner piston rod is made with high precision, ensuring smooth operation inside the cylinder and leak-tightness of the lubrication system.
Undercarriage Protection: A properly functioning tensioner absorbs shocks (working with the spring), protecting the idler wheel, chain, and final drive from mechanical damage.
High Durability: The use of corrosion-resistant steel and high-quality seals extends the service life of the tensioner, even in mud and water.
Ready for Work: The part is ready for installation in the JS330 excavator undercarriage frame.

Application in JCB machinery

Brand Models
JCB JS Excavators: JS330 (years 1997 - 2025)

The tensioner is dedicated to heavy 33-ton excavators. It provides adequate tension force for large chains.

Related Parts and Hardware

The tensioner works with the idler wheel and the tensioner spring (recoil spring). When replacing the tensioner, it is worth checking the condition of the grease valve (nipple) and spring seals.

⚠️ Safety Warning

The track tensioner system is under immense pressure (grease) and mechanical tension (spring). Never disassemble the tensioner without first safely releasing the grease pressure and ensuring the spring is secured. Improper disassembly risks death or injury.

Part Role in the Machine and Failure Diagnostics

Tensioner 332/K5118 maintains track tension.

  • › Loose track (grease leak from tensioner).
  • › Track derailment (lack of tension).
  • › Inability to tension the track (seized piston, damaged valve).
  • › Grease leak under the idler wheel.

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🔧 Expert Guide: Key Installation Tips

  1. Surface Check: Before installing a new piston, check if the cylinder inside the frame has corrosion pits. Pits will destroy the new tensioner's seals in a few days.
  2. Grease: Use only recommended grease for tensioners. Ordinary grease may not withstand the pressure.
  3. Tension: Remember that an overly tight track destroys final drives and rollers. Tension according to the manual (track sag).

Technical FAQ and Trivia

How does the tensioner work?

The tensioner is a hydraulic cylinder in which the working medium is solid grease injected with a grease gun. The pressure of the grease pushes the piston rod, which moves the idler wheel forward, tensioning the track.

Is the spring included?

Typically, number 332/K5118 refers to the hydraulic cylinder itself (piston + cylinder). The shock absorbing spring (recoil spring) is a separate item, rarely requiring replacement unless broken.

Trivia about the tensioner spring

The spring at the tensioner is not for tensioning the track (grease does that), but for SHOCK ABSORPTION. When a rock gets into the track, the spring compresses, retracting the idler wheel and preventing the chain from breaking. The force of the compressed spring in a JS330 excavator can be over a dozen tons!

Question mark

Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.

332/K5118A
332/K5118
203.00 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
EXCAVATOR
OEM NUMBERS
JSA0132 / 332/K5118

Specific References

MPN
332/K5118
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Yoke spring and fork suitable for JCB JS

Catalog number: 332/K5118A
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Manufacturer

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57a
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100

Responsible person

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57A
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100
gross price

4,795.77 zł

net price
3899,00 zł
Available in large quantity Temporarily unavailable
3899,00 zł
net price

4,795.77 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 390 points, it gives you 156.00 zł
  • Lowest price from 30 days before the discount: 4,795.77 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    EXCAVATOR
    OEM NUMBERS
    JSA0132 / 332/K5118

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    Available in large quantity Temporarily unavailable
    Price Gross price 2,335.77 zł
  • You will receive 190 points, it gives you 76.00 zł
  • Nie możesz dodać więcej produktów

    WE OFFER PRODUCTS OF THE BEST BRANDS

    SERWIS KOP Sp. z o.o. Sp.k.
    ul. Podkarpacka 57A, 35-082 Rzeszów
    NIP: 813-352-97-49 REGON: 180286726

    Opening hours
    Telephone support - Monday - Friday (8:00 AM – 5:00 PM)
    Order pick-up - Monday - Friday (8:00 AM – 4:30 PM)

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