Victorious · Range Rover · Cooling System
5.0L V8 Petrol Radiator Coolant Expansion Tank for Range Rover L405 & Sport L494
Direct-fit OEM-quality expansion tank with integrated sensor—maintains precise engine coolant temperature for your supercharged V8.
L405 / L494
2013–2020
5.0L V8 Petrol
Cooling System
Direct Replacement
Overview
The Range Rover Vogue L405 and Range Rover Sport L494 with 5.0L supercharged V8 engines demand precision cooling management. Your expansion tank regulates coolant volume, prevents cavitation, and protects against pressure spikes—especially under high-performance driving.
This aftermarket tank delivers OEM-specification performance at a fraction of OEM pricing. With integrated low-coolant sensor and direct-fit design, it replaces your worn or failed tank in minutes, restoring full cooling-system integrity and engine reliability.
Supplied without lid (available separately, 140kPa or 200kPa rating)—pair with your existing lid or upgrade to our pressure-matched unit for optimal thermal management.
What's Included
🛢️
Expansion Tank
Aftermarket, OEM-spec quality. Without lid.
🔌
Integrated Sensor
Low-coolant level detection. Direct plug-and-play.
📋
Installation Guide
Step-by-step instructions. No specialised tools required.
🛡️
12-Month Warranty
Full coverage against manufacturing defects.
Product Highlights
- Engineered to OEM specs for L405 Vogue and L494 Sport
- 5.0L V8 Petrol AJ133 standard and supercharged engines
- Integrated coolant-level sensor with connectors
- Maintains precise thermal regulation under load
- Direct-fit design; no cutting or modification needed
- Aftermarket brand quality at competitive pricing
- Replaces OEM part numbers LR034654, LR181676
- Stable performance and high reliability proven
- Fast, easy installation—roughly 30 minutes for experienced DIY
- Easy-drain design for seasonal coolant service
Compatibility Table
| Vehicle |
Engine |
Year |
Status |
| Range Rover Vogue L405 |
5.0L V8 Petrol AJ133 |
2013–2020 |
Direct Fit |
| Range Rover Vogue L405 |
5.0L V8 SC Supercharged AJ133 |
2013–2020 |
Direct Fit |
| Range Rover Sport L494 |
5.0L V8 Petrol AJ133 |
2014–2020 |
Direct Fit |
| Range Rover Sport L494 |
5.0L V8 SC Supercharged AJ133 |
2014–2020 |
Direct Fit |
| Range Rover Sport L494 |
2.0 GTDi Petrol |
2014–2020 |
Not Compatible |
| Range Rover Sport L494 |
3.0 TDV6 / TDV8 |
2014–2020 |
Not Compatible |
Tip: Verify your engine type before purchase. Check your service manual or contact us with your VIN—we'll confirm fitment in seconds.
Installation Guide
Radiator Expansion Tank Replacement
-
Prepare: Allow engine to cool completely. Locate expansion tank on front right of engine bay.
-
Drain: Place container under tank. Remove drain plug or disconnect hose carefully to empty coolant into clean container. Reuse if clean.
-
Disconnect: Unplug sensor connector (two-pin plug). Loosen clamp and disconnect upper/lower hoses.
-
Remove bolts: Unbolt tank from bracket (typically 2–3 fasteners). Lift away old tank.
-
Install new: Position new tank in bracket. Reconnect sensor plug (orientation marked). Reattach hoses—ensure clamps are tight.
-
Refill: Pour original coolant back into tank. Top up if needed with 50/50 coolant-water mix (OEM spec: Longlife Green for Range Rover).
-
Bleed: Run engine at idle for 2–3 minutes with cap off. Top up once more. Check for leaks.
-
Test: Confirm low-coolant warning light extinguishes on dash. Monitor temperature gauge for normal range.
⚠️ Important: Never open expansion tank when engine is hot. Pressurised coolant can cause burns. Always allow engine to cool for at least 30 minutes after shutdown. If replacing the tank, inspect hoses for cracks or splits; replace if worn.
Spare Parts & Upgrades
Expansion Tank Lid (sold separately):
- 140kPa lid: Part no. LR017427 – standard pressure rating
- 200kPa lid: Part no. LR010965 – higher-pressure variant for upgraded cooling
If your original lid is damaged or you're upgrading your cooling system, pair this tank with the appropriate pressure-rated lid for your engine setup.
OEM Part Numbers
This tank replaces:
- LR034654 (primary tank part number)
- LR181676 (secondary tank part number)
Ready to Restore Cooling Precision?
A failing expansion tank puts your L405 or L494 at risk of overheating, coolant loss, and engine damage. This OEM-spec replacement keeps your supercharged V8 running cool under any condition.
Shop Cooling System Parts
Use code 22GET20 for 20% off any 2 items.
✓ 30-Day Money-Back Guarantee
✓ Worldwide Shipping
✓ 12-Month Warranty
✓ 4.9/5 Stars
Questions? Call +44 203 943 9919 (Mon–Fri 9am–7pm GMT)
Victorious Automotive is an independent aftermarket parts specialist. We are not affiliated with Jaguar Land Rover, Land Rover, Range Rover, or any OEM manufacturer. Product names, logos, and trademarks remain the property of their respective owners. This product is designed for direct replacement and has been tested for fit and compatibility on the vehicle(s) listed. Installation may require professional mechanical expertise. Always consult your vehicle's service manual before beginning work.
