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IGM100000LR - Inhibitor Switch Electrical Part Land Rover Range Rover Defender, Discovery

IGM100000LR - Switch – Low Ratio Detection

- €102,00
€102,00
€102,00 - €102,00
€102,00
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Low Ratio Detection Switch - the transfer box range-detection switch, mounted on the front housing of the transfer box.

It senses whether the transfer box is engaged in high or low ratio and signals the selected range to the vehicle, driving the dashboard low-range indicator. A plunger-type switch actuated by the range-selection mechanism.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 2 1998-2004 (L318)
Fitment Notes DEFENDER 1987-2016 — Transfer box low ratio (high/low) detection switch, mounts on transfer box front housing
DISCOVERY 2 1998-2004 — Transfer box low ratio detection switch
Alternative Codes
IGM100000LRIGM100000IGM100010RYP500420

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the IGM100000LR low ratio switch do?
The IGM100000LR is a plunger-type switch mounted on the transfer box front housing that detects whether high or low range is engaged. It signals the selected range to the vehicle, which drives the dashboard low-range indicator.
What happens if the low ratio detection switch fails?
A faulty low ratio switch typically causes the dashboard low-range indicator to stay off, flash incorrectly, or stay on permanently regardless of the range actually selected. The transfer box itself still shifts normally since the switch only feeds the indicator circuit.
Which vehicles use this transfer box switch?
This switch fits the LT230 transfer box on Defender (1987-2016) and Discovery 2 (1998-2004).

Alternative & Related Options

Same part, different brands or quality grades. Click any option to view full details.

1 option
IGM100000 - Switch – Low Ratio Detection
Aftermarket IGM100000 - Switch – Low Ratio Detection
Stock 2
€77,50 excl. VAT
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