Chain track 49 link suitable for JCB JS 180-220 crawler excavators - 331/21574
KERTRACK

Chain track 49 link suitable for JCB JS 180-220

Catalog number:SKX696754KR Nr OEM:331/21574 Manufacturer:KERTRACK
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NEXGEN TRACK CHAIN (49 LINKS, 190MM PITCH) SUITABLE FOR JCB - 331/21574

Technical Specification and Compatibility

A critical undercarriage component – a brand new 49-link track chain by NEXGEN. This is a SALT (Sealed and Lubricated Track) chain, where pins and bushings are hermetically sealed, drastically extending undercarriage life by minimizing internal friction. Designed for 18-26 ton class excavators, including JCB JS200-JS260 and CAT 320-325 series. Induction-hardened links, pins, and bushings guarantee maximum resistance to wear and stretching.

Part number: 331/21574
Alternative part numbers: JRA0082, 332/J2795
Chain Type: Sealed and Lubricated (SALT)
Number of Links: 49
Pitch: 190 mm

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

Essential for Undercarriage Service

  • › Sprockets: Always replace chains and sprockets as a set.
  • › Track Shoes (Pads): Transfer from the old chain or replace if worn.
  • › Track Bolts & Nuts: It is recommended to use new hardware to mount the shoes.
  • › Track Rollers & Carrier Rollers: Check roller condition; worn rollers will damage the new chain.

Application in machines

Brand Type / Series / Model
JCB Excavators: JS180, JS200, JS210, JS220, JS235, JS240, JS260, JZ235, JZ255
CATERPILLAR (CAT) 318, 319, 320, 321, 322, 323, 9021, 9030
CASE CX210, CX225
KOBELCO SK200, SK210, SK220, SK235
NEW HOLLAND E215, EH215
FIAT-KOBELCO E215
MITSUBISHI ME200, MS180, MS210, MS230
IR / KATO (Selected models)

The list above is for reference. It is crucial to match the link count (49) and pitch (190 mm).

⚠️ Safety Warning

Working on track undercarriages is extremely dangerous. Use extreme caution when splitting and joining the chain. Release track tension via the grease adjuster before starting work. The grease in the tensioner is under immense pressure and its sudden release can cause severe injury.

Part's Role in the Machine and Failure Diagnostics

The track chain is the assembly of links, pins, and bushings that creates the "road" for the machine and transfers drive power from the sprocket to the ground. It is the primary component of the undercarriage, and its wear affects all other components.

  • › Excessive chain "stretch" (pitch extension) leading to sprocket wear.
  • › Track "jumping" on the sprocket when turning or under load.
  • › Track de-railing (effect of worn links, rollers, and idlers).
  • › Cracked links or failed pin seals (grease leaks).

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🔧 Expert's Guide: Key Installation Tips

  1. Always replace with sprockets: Installing new chains on old, worn sprockets ("shark-toothing") is not recommended. It will cause immediate, accelerated wear on the new chain's bushings.
  2. Replace in pairs: Track chains and sprockets must always be replaced in pairs (left and right) to ensure even wear and straight machine tracking.
  3. Correct tension: After installation, set the correct track sag (tension) according to the service manual. An overly tight track drastically accelerates wear on the entire undercarriage.
  4. Master Pin: Use the master pin and correct retainers to join the chain, ensuring they are installed correctly.

Frequently Asked Questions (FAQ)

1. What does "SALT" (Sealed and Lubricated Track) mean?

A SALT chain has special seals that trap grease inside each pin and bushing. This prevents internal friction ("pin-in-bushing" wear), which is the main cause of chain "stretching". Lubricated chains have a much longer service life than dry chains.

2. What is "Pitch 190 mm"?

Pitch is the key dimension of a track chain. It is the distance measured from the center of one pin to the center of the next pin in the link. This value (190 mm) must be identical to the sprocket and chain to mesh correctly.

3. My chain has 48 links. Will this 49-link chain fit?

No. The link count must be an exact match for your machine's specification. A chain with a different link count will not fit the undercarriage. This model has 49 links. Always count the links on your old chain before ordering.

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.

SKX696754KR
331/21574
580.00 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
EXCAVATOR
OEM NUMBERS
331/21574 / JRA0082 / 332/J2795

Specific References

MPN
331/21574
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Chain track 49 link suitable for JCB JS 180-220

Catalog number: SKX696754KR
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gross price

6,763.77 zł

net price
5499,00 zł
Temporarily unavailable
5499,00 zł
net price

6,763.77 zł

gross price
  • You will receive 550 points, it gives you 220.00 zł
  • Lowest price from 30 days before the discount: 6,763.77 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    EXCAVATOR
    OEM NUMBERS
    331/21574 / JRA0082 / 332/J2795

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