BULLETPROOFING the Jaguar Land Rover 3.0/5.0 Supercharged Cooling System

Jaguar Land Rover V6 and V8 cooling systems have a reputation for plastic components, coolant leaks, and failures that can quickly lead to overheating. In this video, I walk through the upgrades I've made to the cooling system on my 2020 Jaguar F-Pace SVR with the 5.0L supercharged V8, with the goal of eliminating as many of the known weak points as possible. Rather than waiting for the factory plastic parts and hard-to-reach rubber hoses to fail, I replaced several components with updated metal and silicone alternatives. I go over the upper and lower coolant crossover pipes, rear crossover pipe, water pump elbow, thermostat housing, water pump, silicone coolant hoses, and other parts worth considering while the supercharger is removed. Some of these cooling-system components and failure points are shared across Jaguar and Land Rover models using the AJ133 5.0L supercharged V8 and related AJ126 3.0L supercharged V6. Always verify individual part compatibility with your specific vehicle before ordering. Upgrades and topics covered include: ✅ Genuine JLR metal upper & lower coolant crossover pipes ✅ Metal rear coolant crossover pipe ✅ Brass water pump elbow ✅ Metal thermostat housing ✅ New OEM JLR water pump ✅ Swallows Racing silicone coolant hoses ✅ Coolant pressure testing ✅ Vacuum filling the cooling system ✅ Parts worth replacing while the supercharger is removed ✅ Remaining cooling-system weak points to keep an eye on The objective isn't to claim that a modified cooling system can never fail. It's to replace the difficult-to-inspect plastic components and hoses that can cause sudden coolant loss, while leaving the more accessible components easy to inspect during routine maintenance. I'll also discuss a few jobs worth considering while the supercharger is already removed, including supercharger oil, the supercharger snout coupler, PCV valves, and spark plugs. ℹ️ PARTS USED: Upper and lower crossover pipe P/Ns: LR186859, LR186917 - Use genuine if you can afford it! But if you must go aftermarket, this seems to have good reviews vs cheaper options: https://amzn.to/4gCtd0h Rear crossover pipe: https://amzn.to/4gQhSuO Brass elbow with notch (reuse factory o-ring!!!): https://amzn.to/4fPGxPM Metal thermostat (V8): https://amzn.to/4qtOTAt Metal thermostat w/ wire (V6): https://amzn.to/3Snd7Q5 JLR water pump P/N: AJ813909 Metal water pump pipe: https://amzn.to/4idu3Tz Silicone hoses: From ‪@swallowsracing‬ ℹ️ TOOLS USED: Hose clip clamps: https://amzn.to/4wXEUWk Coolant pressure and vacuum fill kit: https://amzn.to/4c23lcX Some links above may be affiliate links. I may earn a commission from qualifying purchases at no additional cost to you. Everything shown was purchased by me unless otherwise stated. ℹ️ CHAPTERS: 00:00 - Intro 00:40 - Upper & Lower Coolant Crossover Pipes 03:23 - Intake Pipe Removal 04:28 - Water Pump & Brass Elbow Upgrade 05:31 - Throttle Body Silicone Coolant Hose 06:13 - Hidden Parts: Rear Crossover & Water Pump Pipes 07:53 - Silicone Coolant Hose Upgrades 09:47 - Metal Thermostat Housing 10:48 - Coolant Pressure Test & Vacuum Fill 11:57 - While You're In There: Other Reliability Upgrades ⚠️ DISCLAIMER: This video documents the work and upgrades performed on my own vehicle and is intended for informational purposes. Parts and cooling-system configurations vary between Jaguar and Land Rover models, model years, and engines. Verify compatibility and refer to the appropriate factory service information for your vehicle before performing any repairs. #Jaguar #LandRover #FPaceSVR #AJ126 #AJ133