Skip to content
8–23 August: reduced summer staffing. Orders may take up to 5 extra working days to dispatch and emails up to 2 working days to answer. Thanks for your patience.
8–23 Aug: orders may ship up to 5 days later.
RBK500170D - Ball Joint - Front Radius Arm - Upper by DelphiSteering or Suspension Part Land Rover Range Rover Discovery

RBK500170D - Ball Joint – Upper Front Suspension Arm

- €33,90
€33,90
€33,90 - €33,90
€33,90
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand Delphi
Upper Front Suspension Arm Ball Joint

The upper ball joint forms the top pivot between the front upper suspension arm and the wheel knuckle, holding the top of the knuckle in location while allowing it to steer and to articulate through suspension travel. Wear at this joint typically presents as steering play, uneven tyre wear or knocking from the front suspension.

Supplied as a service kit including the retaining circlip, so the joint can be renewed in the existing upper arm rather than replacing the complete arm assembly.

Two joints are fitted per vehicle, one per side.
Vehicle Model Land Rover Discovery 3 2005-2009 (L319)
Land Rover Discovery 4 2010-2016 (L319)
Range Rover Sport 2005-2013 (L320)
Fitment Notes Upper front suspension arm ball joint. JLR comment: "Includes Circlip, Service Kit". Qty 2 per vehicle.
DISCOVERY 3 2005-2009 (L319) — upper. 4050KG ECWVTA / with B6 level armouring. From VIN (V)9A000001.
DISCOVERY 4 2010-2016 (L319) — upper. Front upper and lower arms, and with B6 level armouring. From VIN (V)AA000001.
RANGE ROVER SPORT 2005-2013 (L320) — upper. 2005-2009: less ACE suspension with Electronic Stability Control, or with Roll Stability Control — to VIN (V)9A999999. 2010-2013: front upper and lower arms — from VIN (V)AA000001.
Alternative Codes
RBK500170DRBK500170

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 is the upper front suspension arm ball joint and what does it do?
This upper ball joint is the top pivot between the front upper suspension arm and the wheel knuckle. It holds the top of the knuckle in place while letting it steer and articulate through suspension travel, on Discovery 3, Discovery 4 and Range Rover Sport L320.
Does this ball joint come as a kit, and how many are needed?
This ball joint is supplied as a service kit including the circlip. Two are needed per vehicle, one each side, and they're usually replaced in pairs so both front corners wear evenly.
Which vehicles does this upper ball joint fit?
This upper front ball joint fits Land Rover Discovery 3 (2005-2009), Discovery 4 (2010-2016) and Range Rover Sport L320 (2005-2013). Some fitments depend on armouring level and suspension type, so check your VIN against the fitment note before ordering.
What are the signs the upper ball joint is worn?
A worn upper ball joint typically shows as steering play, knocking from the front suspension and uneven tyre wear. It's a safety-critical joint, so replace it promptly and check the wheel alignment afterwards.

Alternative & Related Options

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

4 options
RBK500170 - Ball Joint – Upper Front Suspension Arm
Genuine RBK500170 - Ball Joint – Upper Front Suspension Arm
Stock 1
€15,80 excl. VAT
View →
RBK500170G - Ball Joint – Upper Front Suspension Arm
OEM RBK500170G - Ball Joint – Upper Front Suspension Arm
Stock 0
€43,80 excl. VAT
View →
RBK500170LR - Ball Joint – Upper Front Suspension Arm
Genuine RBK500170LR - Ball Joint – Upper Front Suspension Arm
Stock 0
€81,50 excl. VAT
View →
No image
OEM RBK500170PR - Ball Joint – Upper Front Suspension Arm
Stock 0
€15,30 excl. VAT
View →