• Valve cotter suitable for JCB DieselMax - Engine - 320/03528
  • Valve cotter suitable for JCB DieselMax - Engine - 320/03528
Valve cotter suitable for JCB DieselMax - Engine - 320/03528
JCB

Valve cotter suitable for JCB DieselMax / EcoMax - Engine

Catalog number:320/03528D Nr OEM:320/03528 Manufacturer:JCB
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Original Valve Cotter (Collet) for JCB DieselMax - 320/03528

Technical Specification and Compatibility

Original 320/03528 valve cotter (collet / keeper) by JCB. This is a precision timing system component dedicated to JCB DieselMax and EcoMax engines. This part is responsible for securely locking the valve spring retainer to the valve stem.

Part Number: 320/03528
Type: Valve Cotter / Collet / Keeper
Engine Series: JCB DieselMax / EcoMax (444, 448)
Quantity per valve: 2 pieces (sold individually)
Manufacturer: JCB (Original)

By choosing genuine JCB parts, you ensure a perfect fit and highest build quality. Original components guarantee restoring the machine's factory performance and engine safety.

Features of JCB 320/03528 Cotter

Precision Shape: Perfect replication of the taper angle and grooves ensures secure locking of the spring retainer on the valve stem.
High Hardness: Made of hardened steel, resistant to compression and shear forces occurring at high engine RPMs.
OEM Quality: Safety guarantee – failure of a low-quality replacement can lead to engine destruction.
Compatibility: Dedicated to all generations of JCB DieselMax and EcoMax engines.

Application in JCB machinery

Machine Type Models (DieselMax Engine)
Backhoe Loaders 3CX, 3DX, 4CX, 5CX
Telehandlers 531-70, 535-95, 541-70, 500 Series
Excavators JS130, JS145, JS160, JS220, JZ140, X Series
Other Equipment Teletruk, Vibromax Rollers, Generators

Application applies to JCB DieselMax and EcoMax engines. Typically 2 pieces per valve.

Related Parts and Hardware

The cotter works directly with the valve (clamping onto its stem) and the valve spring retainer. When overhauling the head, it is also worth replacing the valve stem seals.

⚠️ Safety Warning

Improper installation or damage to the valve cotter causes the spring to "unlock", resulting in the valve dropping into the cylinder. This leads to total engine destruction (piston, head, cylinder). Always ensure cotters are seated correctly.

Part Role in the Machine and Failure Diagnostics

The 320/03528 cotter is a small, two-piece conical element that maintains valve spring tension, allowing it to retract the valve after opening.

  • › Critical Failure: The cotter usually gives no prior warning symptoms. Its breakage or dislodgement happens suddenly and ends in major failure.
  • › Causes of failure can include engine over-revving, valve spring breakage, or assembly error.
  • › Wear: Worn grooves on the cotter or valve stem (visible during head overhaul).

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

No worries. Our website features only a few thousand of the over 60,000 parts we have in stock. Contact us – we likely have what you need readily available!

🔧 Expert Guide: Key Installation Tips

  1. Quantity: Remember that two halves (2 pcs) are required for one valve. Make sure you have the correct amount.
  2. Seating Check: After installing the cotters and releasing the spring, gently tap the valve stem with a mallet (using a soft drift) to ensure the cotters are fully seated in the grooves.
  3. New Parts: It is always recommended to use new cotters when replacing valves, as old ones may be deformed.

Frequently Asked Questions (FAQ)

Is the price for a set per valve?

No. The price refers to 1 piece (one half). To secure one valve, you need 2 pieces of this product.

Does it fit both intake and exhaust valves?

Yes, in JCB DieselMax engines, the same cotter type (320/03528) is typically used for both intake and exhaust valves.

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.

JCB
320/03528D
320/03528
0.01 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
EXCAVATOR
FORKLIFT
GENERATOR
SKID STEER LOADER
TELESCOPIC HANDLER
TELETRUK
VIBROMAX
WHEELED LOADER
OEM NUMBERS
320/03528
ENGINE
JCB DIESELMAX
JCB ECOMAX

Specific References

MPN
320/03528
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Valve cotter suitable for JCB DieselMax / EcoMax - Engine

Catalog number: 320/03528D
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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

5.54 zł

net price
4,50 zł
Available in large quantity Temporarily unavailable
4,50 zł
net price

5.54 zł

gross price
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  • You will receive 1 points, it gives you 0.40 zł
  • Lowest price from 30 days before the discount: 5.54 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    EXCAVATOR
    FORKLIFT
    GENERATOR
    SKID STEER LOADER
    TELESCOPIC HANDLER
    TELETRUK
    VIBROMAX
    WHEELED LOADER
    Show more
    OEM NUMBERS
    320/03528
    ENGINE
    JCB DIESELMAX
    JCB ECOMAX

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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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