Pulley lower idler assembly suitable for JCB DieselMax
GX-AFTER

Pulley lower idler assembly suitable for JCB DieselMax

Catalog number:SK050644A Nr OEM:320/08724 Manufacturer:GX-AFTER
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BELT TENSIONER PULLEY SUITABLE FOR JCB 3CX, 4CX (DIESELMAX) - 320/08724

Technical Specification and Compatibility

A complete idler pulley assembly for the multi-ribbed (serpentine) belt, designed for machines with JCB DieselMax / EcoMax engines in the non-air-conditioned version. It is a key component of the accessory drive system, responsible for the proper guidance and tension of the belt. Equipped with a high-quality, sealed bearing, it ensures quiet and long-lasting operation.

Part number: 320/08724
Alternative part numbers: 320/08588, 320/08587
Compatible engine: JCB DieselMax, JCB EcoMax (non-A/C versions)
Overall dimensions (mm): ~ 130 (L) x 120 (H) x 45 (pulley W)

Aftermarket quality product – an intelligent choice combining excellent quality with an attractive price.

Application in machines

Brand (Machine Type) Model
JCB (Backhoe Loaders) 3CX, 4CX (with DieselMax / EcoMax engine, non-AC)
JCB (Telehandlers) Loadall (with DieselMax / EcoMax engine, non-AC)
JCB (Wheeled & Tracked Excavators) JS (with DieselMax / EcoMax engine, non-AC)
JCB (Generators) G-Series (with DieselMax / EcoMax engine)

The list above is for reference. It is crucial to ensure that your machine has a JCB DieselMax or EcoMax engine and is the non-air-conditioned version.

Service Recommendation: Ensure Maximum Lifespan

Replacing one pulley is the perfect time for a comprehensive service of the accessory drive. Always replace the multi-ribbed belt along with the pulley to ensure a perfect fit and avoid premature wear. Also, check the condition of the other pulleys (alternator, water pump) for damage.

Part's Role in the Machine and Failure Diagnostics

The idler pulley, driven by the serpentine belt, is responsible for the proper guidance and tension of the belt that drives key engine components such as the alternator and water pump. Its failure leads to the belt breaking and immediate immobilization of the machine.

Replace the pulley before a broken belt causes serious damage. Common symptoms include:

  • A loud rumbling, grinding, or squealing noise from the belt area, which intensifies with RPM.
  • Visible side-to-side wobble of the pulley or belt vibration while the engine is running.
  • Excessive wear or fraying of the serpentine belt edges.
  • Overheating of the pulley (can be felt after shutting down the engine) or visible signs of melting plastic.

Peace of Mind Guarantee: Why Choose Our Offer?

✓ Avoid Sudden Downtime: The GX-AFTER Solution

A failed pulley bearing leads to a broken belt, which immediately stops the charging and cooling of the engine. The GX-AFTER pulley is a smart choice that allows you to prevent a serious failure at a low cost. Made of durable materials and equipped with a high-quality bearing, it ensures reliability and peace of mind.

Do you hear a disturbing noise from the engine? Don't ignore the warnings!

A squealing belt or a whining bearing is the last call before the machine is immobilized. Order a new pulley today and perform a simple replacement before it's too late!

Expert's Guide: Key Installation Tips

  1. Take a picture of the belt: Before disassembly, take a photo of how the serpentine belt is routed. You will save a lot of time and frustration during assembly.
  2. Release the tensioner: Use an appropriate wrench (usually 1/2 inch) on the automatic tensioner to loosen the belt and safely remove it.
  3. Check other components: While you're at it, check the condition of the bearings on the main tensioner, alternator, and water pump.
  4. Torque correctly: Tighten the pulley mounting bolt with a torque wrench according to the manufacturer's specifications.

Frequently Asked Questions (FAQ)

1. Does this kit include the belt?

No, this offer is for the complete pulley assembly. The belt should be purchased separately, and we always recommend replacing it at the same time.

2. I hear a squeal, but I don't know which pulley is noisy. How can I check?

The simplest method is to remove the belt (with the engine off!) and manually spin each of the pulleys. A damaged bearing will make a rumbling or grinding noise, or will have noticeable play.

3. Does this pulley fit the version with air conditioning?

No, this model is designed for machines without an A/C compressor. The belt routing on A/C versions is different and requires different pulleys.

Key Advantages

🛡️

Quiet Engine Operation

Eliminates annoying bearing squeals and rumbles.

🎯

Belt Protection

Smooth operation prevents fraying and breaking.

📦

Failure Prevention

Protects against machine immobilization.

Question mark

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.

SK050644A
320/08724
1.50 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
EXCAVATOR
FORKLIFT
GENERATOR
SKID STEER LOADER
TELESCOPIC HANDLER
WHEELED LOADER
OEM NUMBERS
320/08724 / 320/08588 / 320/08587
ENGINE
JCB DIESELMAX
JCB ECOMAX

Specific References

MPN
320/08724
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Pulley lower idler assembly suitable for JCB DieselMax

Catalog number: SK050644A
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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

134.69 zł

net price
109,50 zł
Available in large quantity Temporarily unavailable
109,50 zł
net price

134.69 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 11 points, it gives you 4.40 zł
  • Lowest price from 30 days before the discount: 134.69 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    EXCAVATOR
    FORKLIFT
    GENERATOR
    SKID STEER LOADER
    TELESCOPIC HANDLER
    WHEELED LOADER
    Show more
    OEM NUMBERS
    320/08724 / 320/08588 / 320/08587
    ENGINE
    JCB DIESELMAX
    JCB ECOMAX

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  • You will receive 19 points, it gives you 7.60 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)

    Email



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    Phone
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    +48 17 864 00 24
    +48 17 864 25 96

    Mobile phone
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    Fax
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