IEQ100000 | Hub and Sleeve Assembly - LT230 Transfer Box | Defender 1987-2006
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: IEQ100000 - Hub and Sleeve Assembly - Transfer Box
IEQ100000 is a Hub and Sleeve Assembly - Transfer Box fitted to the LT230 transfer box. This assembly engages the high/low gear selection mechanism on Land Rover Defender models and provides the sliding connection between selectable gears. The hub carries the splines that receive the sleeve; the sleeve moves axially to connect either the high or low gear set to the output shaft. Correct spline condition and free axial movement of the sleeve are necessary for positive gear engagement and to avoid excessive noise, partial engagement or slipping under load. When replacing the assembly, ensure components are free of burrs and mating faces within the transfer box are clean, and confirm the part matches the LT230 transfer box variant before installation.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - LT230 transfer box (L315) - High/Low gear
Frequently Asked Questions
IEQ100000 provides the sliding engagement between selectable gears inside the LT230 transfer box, enabling selection between high and low ranges. The hub supplies the splines and the sleeve moves axially to couple either gear set to the output shaft. Worn, corroded or damaged splines and restricted sleeve movement commonly cause partial engagement, noise or slipping and should be inspected when range-selection faults occur.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | LT230 transfer box (L315) - High/Low gear |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Inspect the hub and sleeve during routine transfer box or driveline services and replace if splines show visible wear, pitting or corrosion, or if there is difficulty selecting ranges, excessive noise or slipping between high and low. If unsure, consult the vehicle service manual or a Land Rover technician before fitting a replacement.
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