Womala Shock Absorber RNB501580 for Land Rover DISCOVERY L319 RANGE ROVER SPORT L320

Product Overview

The Front Air Suspension Strut RNB501580 is an OE-grade complete corner unit engineered for the for Land Rover Discovery 3 / LR3 (L319) from 2005 to 2009. This assembly combines the air spring and hydraulic damper into a single integrated unit, carrying the vehicle and setting ride height under the control of the air suspension system, while the integral shock absorber controls damping and wheel movement.

RNB501580 is the current replacement part, superseding a chain of earlier numbers: RNB000855 → RNB000856 → RNB000857 → RNB000858 → RNB501180 → RNB501250 → RNB501580.

⚠️ Important: This strut fits the front axle on both left and right sides. Up to VIN 9A999999 — later builds use different corner units. Confirm your vehicle has air suspension (not coil springs) before ordering.

Key Features

• Complete air spring and damper assembly – one unit replaces both components

• Fits both front left and right sides – one part number covers both front corners

• Multi-ply air spring bladder – Continental ContiTech rubber construction for durability

• OE-grade quality – available as BWI OEM, Dunlop, Arnott, Dorman, and other quality alternatives

• Direct-fit replacement – matches factory mounting points; no modifications required

OE Cross-Reference

OE-equivalent references: LR013930, LR014194, LR016403, LR016414, LR016415, LR016416, LR018398, LR032646, LR034282, LR034283, LR034284, LR041108, LR058022 

Aftermarket equivalents: Arnott AS-2809 · Dorman 949-984 · BWI RNB501580W · Dunlop RNB501580D 

💡 Note: RNB501580 is the current part number at the end of a long supersession chain. All listed numbers refer to the same front air strut for Discovery 3 / LR3 applications.

Technical Specifications

Vehicle Fitment

Engine compatibility (verify with VIN):

• 2.7L TDV6 Diesel (276DT) 

• 3.0L SDV6 / TDV6 Diesel (306DT) 

• 4.0L V6 Petrol (406PN) 

• 4.4L V8 Petrol (448PN) 

• 5.0L V8 Petrol (508PN / AJ133) 

⚠️ Important: This strut fits both front left and right positions. 2 units are required per vehicle for a complete front axle replacement.

Signs of Failure

• Vehicle sagging – one or both front corners sit lower than normal, especially overnight 

• Harsh or bouncy ride – reduced damping performance

• Suspension warning light – dashboard alert illuminated

• Compressor running frequently – system constantly trying to maintain pressure due to air loss

• Uneven ride height – vehicle sits unevenly side-to-side

💡 Critical Service Note: The main cause of compressor failure is air leaks elsewhere in the system — a leaking front air strut puts undue stress on the expensive compressor unit. Inspect air springs and lines for leaks before replacing the compressor.

Critical – Verify Your VIN Before Ordering

Air suspension struts are VIN-, model-year-, and suspension-specific. VIN cut-off 9A999999 applies — confirm your vehicle‘s VIN is within range. Provide your VIN – our team confirms exact compatibility before dispatch. We cannot accept returns for misordered parts without VIN verification.

💡 Installation Tip: Professional installation recommended. Replace in pairs (both front left and right simultaneously) to keep ride height and damping even across the axle. After installation, the suspension system may require calibration or height sensor check using diagnostic equipment. Core exchange may apply on certain units — return your original to recover any deposit.

Why Choose Us

Contact us for bulk orders or VIN‑checked quotes.

Specifications subject to change; images for reference only.Aftermarket replacement – not affiliated with Jaguar Land Rover.

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