Torque converter - 2.52 ratio
NEXGEN

Torque converter - 2.52 ratio

Catalog number:SKX970272B Nr OEM:04/600650 Manufacturer:NEXGEN
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TORQUE CONVERTER (2.52 RATIO) SUITABLE FOR JCB 3CX, 4CX - 04/600650

Technical Specification and Compatibility

A high-quality torque converter, a key component of the drivetrain in machines with a gearbox. Its function is to smoothly transfer torque from the engine to the gearbox, allowing for smooth starts and load changes without jerking. Precision balancing and durable construction guarantee quiet operation and maximum service life.

Part number: 04/600650
Alternative part numbers: 04/501600
Type: 12.2" (inch)
Stall Ratio: 2.52:1
Color Code: Orange / Yellow / Orange

In the construction industry, machine reliability is the key to success. That's why we offer high-quality replacement parts for construction machinery that meet the highest standards of durability and performance. Our products are the ideal solution for companies and specialists looking for reliable components at attractive prices.

How to Decode the Markings on the Converter ⚙️

The dots on the converter are a color code for the quick identification of the key parameter: its stall ratio. This is a visual shortcut for mechanics – instead of searching for a stamped part number on a dirty component, you can identify the converter type at a glance. For this product, the combination of Orange/Yellow/Orange uniquely identifies a converter with a 2.52:1 stall ratio.

What is "Stall Ratio" and Why is it Important?

Imagine it's like the "first gear" in a car – it determines how much power the machine has when starting off. Technically, the stall ratio is the maximum torque multiplication a converter can achieve when the engine is revving but the machine is stationary. A higher ratio means more pushing power. Installing a converter with the wrong ratio will make the machine feel "weak" or inefficient. This is why correct identification is crucial.

Most Common JCB Converter Color Codes:
  • 2x Purple + 1x White: Ratio 2.20:1 (e.g., 04/500100)
  • 2x Orange + 1x Green: Ratio 2.44:1 (e.g., 04/500800)
  • Orange + Yellow + Orange: Ratio 2.52:1 (e.g., 04/600650)
  • Purple + Yellow + Purple: Ratio 2.82:1 (e.g., 04/501400)

The color code should be distinguished from single balancing marks (e.g., drill holes), which ensure vibration-free operation.

Essential for Assembly

  • › Rear crankshaft seal: Crucial for preventing engine oil leaks.
  • › Transmission pump seal: Prevents oil leaks from the gearbox.
  • › HYPTRON transmission oil: To refill the system after installation.
  • › REDX transmission filter: Always replace the filter during a gearbox overhaul.

Application in machines

Brand (Machine Type) Model
JCB (Backhoe Loaders) 3CX, 4CX
JCB (Telehandlers) Loadall

The list above is for reference. Before purchasing, we recommend verifying the part number or color code on your machine.

⚠️ Safety Warning

Replacing a torque converter requires splitting the engine from the transmission. This is a complex and dangerous operation requiring specialist tools and knowledge. Always follow the manufacturer's service manual and secure the machine against rolling.

Part's Role in the Machine and Failure Diagnostics

The torque converter is a key component of the drivetrain. Its failure leads to a loss of power, driving problems, and can result in damage to the oil pump or the entire gearbox due to circulating metal filings.

  • › Lack of power, the machine "struggles to move", especially under load.
  • › Overheating of the transmission oil.
  • › Loud whining, humming, or metallic sounds from the area between the engine and gearbox.
  • › Presence of a large amount of metal filings in the transmission oil and filter.

Peace of Mind Guarantee: Why Choose Our Offer?

A damaged torque converter risks destroying the entire transmission.

Shrapnel from a disintegrating converter will destroy the oil pump, solenoids, and clutch plates. The cost of a new converter is negligible compared to a full transmission rebuild. Don't take the risk – order a proven NEXGEN torque converter and restore full power and a smooth drive to your machine.

📞 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. Replace the seals: Always replace the rear crankshaft seal and the transmission pump seal. They are the most common sources of leaks between the engine and gearbox.
  2. Flush the system: Before installation, thoroughly flush the transmission oil cooler to remove old metal filings.
  3. Pre-fill with oil: Before installation, pour about 1-2 litres of clean transmission oil into the new converter to avoid a dry start.
  4. Inspect the pump: Before mounting the converter, check the condition of the spline on the transmission oil pump.

Frequently Asked Questions (FAQ)

1. What is a torque converter and how does it work?

A torque converter is a type of fluid coupling that transfers power from the engine to the transmission via hydraulic fluid. It consists of an impeller, a turbine, and a stator. There is no mechanical connection, which allows for smooth starts and load changes without jerking.

2. What does the "stall ratio" (e.g., 2.52:1) mean?

The stall ratio defines the ratio of the input speed (from the engine) to the output speed (to the gearbox) when the turbine is stalled. A value of 2.52:1 means the converter can multiply the torque by over 2.5 times when starting from a standstill, which is crucial for construction machinery. Choosing a converter with the correct ratio is essential for the machine's proper performance.

3. The machine is weak and struggles to drive. Is it definitely the converter's fault?

It is a very common cause. However, before deciding to replace it, you should check the oil pressure in the transmission. Low pressure, caused for example by a worn oil pump or leaks, will also manifest as a lack of power.

4. Can an old torque converter be refurbished?

Yes, there are companies that specialize in refurbishment, but it is a complex process that requires cutting the unit open, replacing internal components, and precision balancing. Due to the critical role of this component, buying a new, proven part is often a more reliable and cost-effective solution in the long run.

Key Advantages

🛡️

Full Power

Restores the machine's ability to work under full load.

🎯

Smooth Driving

Eliminates jerking and ensures smooth starts.

📦

Gearbox Protection

Prevents the circulation of filings and damage to the transmission.

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.

SKX970272B
04/600650
17.00 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
TELESCOPIC HANDLER
OEM NUMBERS
04/600650 / 04/501600

Specific References

MPN
04/600650
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Torque converter - 2.52 ratio

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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

2,520.27 zł

net price
2049,00 zł
Available in large quantity Temporarily unavailable
2049,00 zł
net price

2,520.27 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 205 points, it gives you 82.00 zł
  • Lowest price from 30 days before the discount: 2,520.27 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    TELESCOPIC HANDLER
    OEM NUMBERS
    04/600650 / 04/501600

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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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