Roller track top suitable for JCB 802.7 803 mini excavators
JCB

Roller track top suitable for JCB 802.7 803 mini excavators

Catalog number:332/S4308D Nr OEM:332/S4308 Manufacturer:JCB
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GENUINE JCB TOP ROLLER (CARRIER) FOR 8025ZTS, 8030ZTS MINI - 332/S4308

Technical Specification and Compatibility

A critical undercarriage component – this Genuine JCB top roller (carrier roller) is designed for a wide range of 2.5 - 4 ton JCB mini excavators, including the highly popular 8025ZTS, 8030ZTS, 803, and 804 models. As a genuine part, it has undergone a complex casting process and comprehensive heat treatment. This guarantees high durability of the tread against abrasion and core resistance to impact loads, even in the toughest working conditions.

Part number: 332/S4308
Alternative part numbers: 237/30010, 232/63900
Manufacturer: JCB (Genuine)
Type: Top Roller (Carrier Roller)
Construction: Hardened Tread, Oil-Filled, Maintenance-Free

Genuine JCB product – a guarantee of the highest quality, perfect fit, and 100% compatibility with your machine.

Essential for Installation

  • › Mounting Bolts: Always use new, high-tensile bolts to mount the roller to the track frame.

Application in machines

Brand Type / Series / Model
JCB Mini Excavators: 802, 802 Super, 802.4, 802.4 Super, 802.5, 802.6, 802.7, 802.7 Plus, 802.7 Super, 8025ZTS, 8026, 8027Z, 8029, 803, 803E, 803 Magnum, 803 Plus, 803 Super, 8030ZTS, 8032Z, 8035ZTS, 804, 804 Plus, 804 Super, JS30, 55Z-1

The list above is for reference. It is crucial to verify the OEM part number or roller dimensions.

⚠️ Safety Warning

Working on track undercarriages is extremely dangerous. Use extreme caution when releasing and tensioning tracks. Track tension must be released before service. The machine must be securely supported on certified stands. Never rely solely on the machine's own hydraulics.

Part's Role in the Machine and Failure Diagnostics

Top rollers (carrier rollers) support the upper run of the track chain. They prevent the chain from sagging, striking the undercarriage frame, and reduce noise, vibration, and wear on the track links.

  • › Loud, metallic noise or squealing during travel (symptom of a seized bearing).
  • › Excessive vibration of the upper track section.
  • › Visible oil leak from the roller's seals.
  • › Uneven wear or "flat spots" on the roller surface (seized roller).

📞 Can't find the part you're looking for?

No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!

🔧 Expert's Guide: Key Installation Tips

  1. Clean Mounting Surface: Before bolting on the new roller, thoroughly clean the mounting surface on the track frame of all rust, dirt, and old grease.
  2. New Bolts: Always use new, high-tensile mounting bolts and tighten them in a star pattern using a torque wrench to the manufacturer's specification.
  3. Inspect Chain: Check the condition of the track chain's inner link surfaces. If they are heavily worn or damaged, they will destroy the new top rollers.
  4. Correct Track Tension: An over-tensioned track places extreme load not only on the idlers and sprockets but also on the top rollers. Set the correct track sag.

Frequently Asked Questions (FAQ)

1. What is the difference between this top roller (332/S4308) and the bottom roller (331/32806)?

Both rollers fit a similar range of machines (e.g., 8025, 8030). The top roller (this item, 332/S4308) supports the chain from the top to prevent it from sagging. The bottom roller (331/32806) is on the bottom and carries the entire machine's weight. They have different designs and are not interchangeable.

2. Is this roller maintenance-free?

Yes. Genuine JCB rollers are factory-filled with oil and equipped with durable, heavy-duty seals that provide lubrication for their entire service life. They do not require regular greasing.

3. Will this fit my large JS220 excavator?

No. This roller is a mini-excavator part for the 8025-8035 series. A large JS220 excavator uses a much larger top roller, such as part number 331/42441.

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.

JCB
332/S4308D
332/S4308
3.38 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
MINIEXCAVATOR
OEM NUMBERS
332/S4308 / 237/30010 / 232/63900

Specific References

MPN
332/S4308
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Roller track top suitable for JCB 802.7 803 mini excavators

Catalog number: 332/S4308D
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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

596.55 zł

net price
485,00 zł
Temporarily unavailable
485,00 zł
net price

596.55 zł

gross price
  • You will receive 49 points, it gives you 19.60 zł
  • Lowest price from 30 days before the discount: 596.55 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    MINIEXCAVATOR
    OEM NUMBERS
    332/S4308 / 237/30010 / 232/63900

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    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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