Victorious · Multi-Vehicle · Cooling System
140kPa Radiator Expansion Tank Lid
OEM-spec pressure cap for Range Rover Sport, Discovery, Velar, and Jaguar XF/XJ/XK—direct replacement with 12-month warranty.
C2P17700
LR017427
2014+
Aluminum & Rubber
140kPa Rating
Direct Fit
Overview
The radiator expansion tank lid is one of the most overlooked yet critical cooling system components. This OEM-specification 140kPa pressure cap maintains coolant integrity and engine temperature regulation across Range Rover Sport L494/L461, Discovery 4/5, Velar, and Jaguar XF/XJ/XK models from 2006 onward.
A failing or missing expansion tank lid forces your cooling system to work harder, risking overheating, coolant loss, and potential engine damage. This Partsmost unit delivers exact OE performance—precision-engineered to original Land Rover and Jaguar specifications with integrated pressure relief and anti-siphon functionality.
Whether you're replacing a cracked cap, lost seal, or upgrading after years of service, this direct-fit replacement installs in seconds and restores full system reliability. Backed by a 12-month warranty and tested across diesel and petrol engines.
What's Included
🔩
Expansion Tank Lid
OEM-spec 140kPa pressure cap with internal seals
✓
Ready to Install
No modification required—drop-in fit
🛡️
12-Month Warranty
Defects covered under Victorious guarantee
📦
Secure Packaging
Shipped worldwide via DHL, FedEx, or UPS
Product Highlights
-
140kPa Pressure Rating: Maintains optimal cooling system pressure under load
-
OEM Part Numbers: C2P17700, LR017427, LR176860, T2H57759
-
Internal Seals & Gaskets: Dual-layer design prevents coolant seepage
-
Anti-Siphon Valve: Regulates vacuum buildup during coolant contraction
-
Universal Fit Base: Compatible across 2006–2026 Range Rover and Jaguar engines
-
Diesel & Petrol Tested: 2.7L TDV6, 4.4L DDV8, 2.0L Turbo, AJ200P compatible
-
Aluminum Body: Lightweight, corrosion-resistant construction
-
Exact OE Specification: Engineered to original Jaguar Land Rover dimensions
-
Quick & Simple Install: No tools or expertise required—hand-tightened fit
-
30-Day Money-Back Guarantee: Full refund if not satisfied
Compatibility
| Vehicle |
Year Range |
Engine |
Status |
| Range Rover Sport L494 |
2014–2020 |
4.4L DDV8, 3.0L V6 TDV6 |
Direct Fit |
| Range Rover Sport L461 |
2022–2026 |
2.0L Turbo, 3.0L MHEV |
Direct Fit |
| Range Rover Vogue L405 |
2013–2020 |
4.4L DDV8, 5.0L V8 Supercharged |
Direct Fit |
| Range Rover Vogue L460 |
2022–2026 |
3.0L MHEV, 2.0L Turbo |
Direct Fit |
| Range Rover Velar |
2018–2022 |
2.0L Turbo, 3.0L V6 TDV6 |
Direct Fit |
| Land Rover Discovery 4 (LR4) |
2010–2016 |
2.7L V6 TDV6 |
Direct Fit |
| Land Rover Discovery 5 |
2017–2024 |
2.0L Turbo, 3.0L V6 TDV6 |
Direct Fit |
| Jaguar XF |
2008–2015 |
2.0L Turbo, 3.0L V6 TDV6 |
Direct Fit |
| Jaguar XJ (C-Type) |
2010–2019 |
2.0L Turbo, 3.0L V6 TDV6 |
Direct Fit |
| Jaguar XK |
2006–2014 |
5.0L V8 Supercharged, 3.6L V8 N/A |
Direct Fit |
| Jaguar F-Type |
2014–2020 |
2.0L Turbo, 3.0L Supercharged V6 |
Direct Fit |
Not sure your model fits? Email us your VIN at hello@victorious.shop or call +44 203 943 9919 (Mon–Fri, 9am–7pm GMT).
Installation
Difficulty Level: Beginner | Time: 5–10 minutes
-
Cool the engine. Allow at least 30 minutes for the cooling system to drop to ambient temperature. Do not remove the cap while the engine or coolant is hot.
-
Locate the expansion tank. It's mounted vertically on the driver-side engine bay (Range Rover/Jaguar) or co-pilot side (Discovery). Look for a translucent or semi-opaque plastic reservoir with coolant level markers.
-
Remove the old lid. Rotate the cap counterclockwise (typically 1–2 full turns) until it lifts free. Set aside the old gasket or sealing ring.
-
Inspect the tank opening. Wipe away any debris, old gasket material, or coolant residue using a clean lint-free cloth. Ensure the seating surface is dry and smooth.
-
Install the new lid. Place the new expansion tank cap directly onto the opening. Align the vent holes (if present) with the tank's vent passage. Rotate clockwise until hand-tight—you should feel a slight resistance as the internal seal engages.
-
Verify the fit. The cap should sit flush with no rocking or tilting. Do not overtighten—hand-tight is sufficient and prevents seal damage.
-
Check coolant level. With the engine cold, inspect the translucent tank for coolant level between the MIN and MAX markers. Top up with the vehicle's original coolant type if needed (consult your owner's manual for the correct specification).
-
Start and monitor. Start the engine and let it idle for 2–3 minutes. Listen for any hissing or bubbling from the expansion tank area. Turn off the engine and allow it to cool for 10 minutes, then recheck coolant level.
⚠️ Safety Note: Never open the expansion tank cap while the engine is running or still warm. Hot coolant and steam can cause severe burns. If the cooling system has been recently operated, wait at least 30 minutes for the coolant temperature to drop safely. If you're uncomfortable working with pressurized cooling systems, consult a Land Rover or Jaguar specialist.
Ready to Restore Your Cooling System?
Don't ignore cooling system failures. A simple expansion tank lid replacement now prevents costly engine repairs later. This OEM-spec cap delivers the reliability your Range Rover or Jaguar demands.
Shop Now
Use code 22GET20 for 20% off any 2 items.
✓ 4.9/5 Stars • 12,300+ reviews
✓ 30-Day Money-Back Guarantee
✓ Worldwide DHL/FedEx/UPS Shipping
✓ UK Support: +44 203 943 9919
Disclaimer: Victorious Automotive is an independent aftermarket specialist and is not affiliated with, endorsed by, or officially connected to Jaguar Land Rover Ltd., Land Rover, Range Rover, Discovery, or Jaguar. All vehicle names, logos, and trademarks are the property of their respective manufacturers. This product is designed as a direct replacement for OEM components and is manufactured to equivalent specifications. Always verify fitment with your vehicle's VIN before purchase.
