LANDNOVO 104123593 Coolant Bypass Pipe for Land Rover Defender, Discovery 5, Range Rover & Jaguar F-Pace 3.0L LR121446

LANDNOVO — Precision in Motion. Engineered by GB.

Brand New – 100% Original Equipment Performance.

Is your Land Rover Defender, Discovery, Range Rover, or Jaguar F-Pace experiencing coolant leaks, overheating, or slow warm-up? The culprit is often a cracked or degraded coolant bypass pipe. The LANDNOVO 104123593 Coolant Bypass Pipe is a brand new, premium replacement engineered to restore your vehicle's cooling system performance and engine protection.

Manufactured to OE specifications, this coolant bypass pipe delivers 100% original equipment function, performance, and durability. It is a complete drop-in replacement for the original unit, designed for a straightforward installation.

What Does the Coolant Bypass Pipe Do?

The coolant bypass pipe is a critical component of your engine's cooling system. It routes coolant around the engine during the warm-up phase, allowing the engine to reach operating temperature quickly. Once the engine is warm, the thermostat opens and normal coolant flow through the radiator begins. A failed bypass pipe can cause coolant leaks, overheating, and reduced heater performance.

Key Features

• Brand New – high-quality materials, rigorously tested
• 100% OE Performance – direct replacement for OE 104123593 / LR121446 / T4A41033
• Durable Construction – built to withstand extreme engine temperatures and coolant exposure
• Leak-Free Design – precision-machined connections ensure a secure seal
• Maintains Proper Coolant Flow – supports cooling and heater performance
• Plug & Play – bolt-on installation, no modification required
• British-Engineered Precision – Designed by GB
• 12-Month Warranty – peace of mind

Fitment

Vehicle	Chassis	Years	Engine
Land Rover Defender 90 / 110 / 130	L663	2019+	3.0L AJ20P6 Petrol MHEV
Land Rover Discovery 5	L462	2017+	3.0L AJ20P6 Petrol MHEV
Land Rover Range Rover	L405	2013–2022	3.0L AJ20P6 Petrol MHEV
Land Rover Range Rover Sport	L494	2014–2022	3.0L AJ20P6 Petrol MHEV
Land Rover Range Rover Velar	L560	2017+	3.0L AJ20P6 Petrol MHEV
Jaguar F-Pace	X761	2021+	3.0L AJ20P6 Petrol MHEV

Note: For 3.0L AJ20P6 petrol MHEV engines only. Confirm compatibility with your VIN before purchase.

OE Cross-Reference

OE Number	Type
104123593	Primary
LR121446	Land Rover
T4A41033	Jaguar

Specifications

• Type: Engine Coolant Bypass Pipe (By-Pass Hose / Water Pipe)
• Material: Vulcanized rubber combined with textile material
• Condition: Brand New – 100% OE Performance
• Warranty: 12 Months

Symptoms of a Failing Coolant Bypass Pipe

• Coolant leak – visible coolant dripping from the bypass pipe area
• Overheating engine – the engine temperature gauge rises above normal operating range
• Slow warm-up – the engine takes longer than usual to reach operating temperature
• Reduced heater performance – the cabin heater blows less warm air
• Low coolant warning light – the dashboard displays a low coolant warning

Installation Tips

• Professional installation recommended.
• Drain coolant before removal.
• Inspect all hose connections and clamps for wear or damage.
• Always replace the bypass pipe with a new gasket or seal if applicable.
• After installation, refill with correct Land Rover-approved coolant and perform system bleed procedure.

LANDNOVO — Precision | Guaranteed | Durability