Product Emphasis: OEM-quality front lower wishbone rear bush engineered to connect the front lower control arm to the vehicle subframe, absorbing road shock and maintaining proper suspension geometry. This hydro-mount bush provides precise steering feel and ride comfort. Designed as a direct replacement for the original bush, which commonly wears out, causing clunking noises and vague steering.
Original Part Number: RBX500531
Supersession(s): RBX500531 > LR023715 > LR025986 > LR055291
OEM Standard Size: Yes — manufactured to original equipment specifications
Vehicle Compatibility: Land Rover Range Rover Sport (L320), Discovery 3, Discovery 4
Brand: OEM Quality (Febi Bilstein, First Line, Blue Print)
Years: 2005–2013
Models: Range Rover Sport (L320), Discovery 3 (L319), Discovery 4 (L319)
Product Name: Front Lower Wishbone Rear Bush / Lower Control Arm Bushing (Front Lower Rearward)
Quality: OEM-quality replacement with durable rubber construction. Available from Febi Bilstein, First Line (FSK6928), and Blue Print (ADJ138038). Backed by a minimum 12-month manufacturer warranty.
Brand: OEM Quality (Febi Bilstein, First Line, Blue Print)
Manufacturer Part Number: RBX500531 / LR055291 / LR025986 / LR023715
Part Description: Front Lower Wishbone Rear Bush
Condition: New
Fitment Type: Direct Replacement
Position: Front Lower Rearward (Front Axle, Left and Right)
Material: Rubber / Hydro Mount
Inner Diameter: 16 mm
Quantity Required: 2 (one per side)
Warranty: 12 Months
OEM-quality replacement ensuring perfect vehicle fitment
Hydro-mount design absorbs road shock and reduces vibration
Pre-formed shape matches factory control arm mounting point
Replaces worn or cracked original bush to restore proper suspension performance
Eliminates clunking noises and vague steering feel
Maintains proper caster and camber angles for improved handling
Direct press-fit installation using factory mounting point
No modifications required
Range Rover Sport (L320):
2005–2013 (HSE, Supercharged, Autobiography)
Discovery 3 (L319):
2005–2009
Discovery 4 (L319):
2010–2016
Note: Verify fitment by VIN before purchase.
Q1: What does this front lower wishbone bush do?
A: It connects the front lower control arm to the vehicle subframe, absorbing road shock and maintaining proper suspension geometry. A worn bush can cause clunking noises over bumps, vague steering feel, and uneven tire wear.
Q2: Is this a genuine OEM part?
A: RBX500531 is the original OEM part number, which has been superseded through LR023715 and LR025986 to the current LR055291. It is available as an OEM-quality replacement from Febi Bilstein, First Line, and Blue Print.
Q3: What are the symptoms of a failed wishbone bush?
A: A worn bush typically causes clunking or knocking noises from the front suspension, especially over bumps. You may also notice vague or wandering steering, uneven front tire wear, and excessive movement in the front suspension.