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106123471LR - Idler Pulley – 3.0 Diesel

- €27,60
€27,60
€27,60 - €27,60
€27,60
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Idler Pulley for the accessory drive belt on the 3.0L AJ20D6 Ingenium diesel (High-output variant). The idler sits in the pulleys and drive belt assembly at the front of the engine, guiding and routing the multi-ribbed accessory belt.

It runs on a sealed bearing and keeps the belt aligned around the ancillary components. A worn idler bearing typically rumbles, whines or seizes, so it is good practice to renew the idler together with the drive belt and tensioner.

Inspect the pulley for roughness, play or noise at each service and replace it if the bearing is worn.
Vehicle Model Land Rover Defender New 2020+
Land Rover Discovery 5 2017+ (L462)
Range Rover 2013-2022 (L405)
Range Rover 2022+ (L460)
Range Rover Sport 2014-2022 (L494)
Range Rover Sport 2023+ (L461)
Range Rover Velar 2017+ (L560)
Fitment Notes JAGUAR F-PACE 2016> — 3.0L AJ20D6 Diesel High
DISCOVERY 5 2017> — 3.0L AJ20D6 Diesel High, Nitra plant build, from VIN M2000001
NEW DEFENDER 2020 (L663) — 3.0L AJ20D6 Diesel High, Nitra plant build, from VIN M2000001
RANGE ROVER 2013-2022 (L405) — 3.0L AJ20D6 Diesel High, with Four Corner Air Suspension / Electronic Air Suspension with ACE, from VIN LA000001
NEW RANGE ROVER 2022 (L460) — 3.0L AJ20D6 Diesel High, from VIN RA999999
RANGE ROVER SPORT 2014-2022 (L494) — 3.0L AJ20D6 Diesel High, with Four Corner Air Suspension / Electronic Air Suspension with ACE, from VIN LA000001
NEW RANGE ROVER SPORT 2023 (L461) — 3.0L AJ20D6 Diesel High, from VIN RA999999
RANGE ROVER VELAR 2017> — 3.0L AJ20D6 Diesel High, from VIN MA000001
Alternative Codes
106123471LR

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 106123471 idler pulley do?
The 106123471 idler pulley guides and routes the accessory drive belt on the 3.0-litre AJ20D6 Ingenium diesel. It runs on a sealed bearing at the front of the engine, keeping the multi-ribbed belt aligned and correctly wrapped around the ancillary pulleys.
Which vehicles does this idler pulley fit?
This idler fits the 3.0 AJ20D6 diesel across the Discovery 5, Defender 2020+, Range Rover L405 (2013-2022) and L460 (2022+), Range Rover Sport L494 and L461, Velar, and the Jaguar F-PACE. It suits the High-output version of that engine, so check your VIN or engine code before ordering.
What are the signs an idler pulley needs replacing?
A failing idler pulley usually rumbles, whines or squeals from the front of the engine, and the bearing may feel rough or have play when spun by hand. Left unchanged, a seized pulley can shred the drive belt and stop the ancillaries. Replace it as soon as bearing wear shows.
Should I replace the idler with the drive belt and tensioner?
It's good practice to replace the idler pulley, drive belt and tensioner together on the AJ20D6 engine, as they wear as a set and share the same access. Doing them in one job avoids repeating the labour when the next component fails soon after.