4mm Aluminium Gearbox Guard for Toyota Land Cruiser Prado 150 J150 2009–2023

This heavy-duty 4mm Aluminium Gearbox Guard is designed to protect the gearbox and transmission area of the Toyota Land Cruiser Prado 150 / J150 from rocks, raised ground, deep ruts and other underside impacts encountered during demanding off-road driving.

Manufactured from 4mm aluminium plate, the guard provides strong drivetrain protection while keeping additional vehicle weight lower than a comparable heavy-duty steel protection system.

The main protection shield is manufactured from aluminium, while the mounting brackets are made from steel to provide secure attachment to the vehicle. External aluminium reinforcement sections increase resistance to impact and deformation, and the complete assembly is powder coated for additional corrosion protection. :contentReference[oaicite:1]{index=1}

Vehicle Compatibility: Toyota Land Cruiser Prado 150 / J150 2009–2023

Engine Compatibility: All engine variants

Important Installation Requirement: This gearbox guard cannot be mounted without the matching 4mm Aluminium Engine & Sump Guard. The front guard is a mandatory part of the aluminium underbody protection system. :contentReference[oaicite:2]{index=2}

Build a complete Prado 150 underbody protection package:
4mm Aluminium Engine & Sump Guard for Toyota Land Cruiser Prado 150
4mm Aluminium Gearbox Guard for Toyota Land Cruiser Prado 150
Steel Engine & Sump Guard for Toyota Land Cruiser Prado 150
Steel Gearbox Guard for Toyota Land Cruiser Prado 150
Steel Fuel Tank Guard for Toyota Land Cruiser Prado 150

Explore more underbody protection:
Steel & Aluminium Underbody Protection

Key Features

• Designed for Toyota Land Cruiser Prado 150 / J150
• Vehicle application: 2009–2023
• Suitable for all engine variants
• Protects the gearbox / transmission area
• Manufactured from heavy-duty 4mm aluminium plate
• External aluminium reinforcement sections improve impact resistance
• Steel mounting brackets provide secure attachment points
• Powder-coated finish for additional corrosion protection
• Approximate weight: 9kg
• Designed around factory mounting locations
• Mounting screws, nuts, clips and fastening accessories included
• No structural vehicle modification normally required
• 24-month manufacturer warranty
• Requires the matching aluminium engine & sump guard
• Ideal for off-road, overland, touring and expedition use

Vehicle Compatibility

Technical Overview

Important – Matching Aluminium Sump Guard Is Required

This gearbox guard cannot be installed as a standalone component.

The matching 4mm Aluminium Engine & Sump Guard for Toyota Land Cruiser Prado 150 / J150 is mandatory for correct installation and forms part of the mounting arrangement for the gearbox protection system. :contentReference[oaicite:3]{index=3}

Required product:
4mm Aluminium Engine & Sump Guard for Toyota Land Cruiser Prado 150 J150 2009–2023

If your Prado 150 does not already have the matching aluminium front guard installed, both products should be ordered together.

Why Protect the Gearbox?

The gearbox sits along the central underside of the Prado 150 and can become exposed when crossing rocks, deep ruts, raised centre sections and uneven terrain.

A direct impact to the transmission casing can cause deformation, cracking or fluid loss. In severe cases, drivetrain damage can immobilise the vehicle and result in expensive recovery and repair costs.

A dedicated gearbox guard creates a protective barrier beneath the transmission, helping absorb and distribute impacts before they reach critical drivetrain components.

4mm Aluminium Drivetrain Protection

The use of 4mm aluminium plate provides substantial gearbox protection while helping keep overall vehicle weight lower than a comparable steel guard.

At approximately 9kg, this gearbox guard is particularly attractive for Prado 150 builds already carrying additional accessories such as a winch, heavy-duty bumper, roof rack, rooftop tent, recovery equipment and camping gear. :contentReference[oaicite:4]{index=4}

When multiple protection plates and touring accessories are fitted, reducing weight in individual components can make a meaningful difference to the overall vehicle setup.

Aluminium Shield with Steel Mounting Brackets

The main shield is manufactured from aluminium, while the mounting brackets are manufactured from steel. :contentReference[oaicite:5]{index=5}

This combination allows the impact surface to benefit from aluminium's lower weight and corrosion resistance while maintaining strong steel attachment points at the vehicle mounting locations.

All required fastening accessories are supplied with the guard.

Reinforced Aluminium Construction

The exterior of the guard incorporates additional aluminium reinforcement sections that increase rigidity and resistance to deformation during underside impacts. :contentReference[oaicite:6]{index=6}

These reinforced sections help spread impact loads across a larger part of the protection plate rather than allowing rocks or other obstacles to concentrate force against a single area.

Powder-Coated Corrosion Protection

The complete protection assembly is powder coated to provide additional resistance against environmental exposure and corrosion. :contentReference[oaicite:7]{index=7}

This is especially valuable on 4x4 vehicles regularly exposed to mud, water, road salt, wet vegetation and winter driving conditions.

Complete Prado 150 Aluminium Protection System

This gearbox guard forms the second component of the aluminium Prado 150 underbody protection system.

• 4mm Aluminium Engine & Sump Guard – Prado 150 J150 – mandatory
• 4mm Aluminium Gearbox Guard – Prado 150 J150 – this product

The engine and sump guard protects the front underside, while this gearbox guard continues protection rearwards underneath the transmission.

Steel Protection Alternatives

Customers who prefer traditional steel underbody armour can choose from the matching steel Prado 150 protection range.

• Steel Engine & Sump Guard – Prado 150 J150
• Steel Gearbox Guard – Prado 150 J150
• Steel Fuel Tank Guard – Prado 150 J150

Aluminium vs Steel Gearbox Protection

The correct choice depends on expected terrain, vehicle equipment and whether minimising additional weight is a priority.

Ideal Uses

• Overlanding
• Expedition travel
• Green-laning
• Rocky tracks
• Deep ruts
• Forestry and agricultural roads
• Remote touring
• Water crossings with hidden obstacles
• Working vehicles
• Daily-driven 4x4s requiring additional gearbox protection

What’s Included

• 1 × 4mm aluminium gearbox guard
• Steel mounting brackets
• Mounting screws / bolts
• Nuts
• Clips
• Required fastening accessories
• Installation instructions

Important: The matching 4mm Aluminium Engine & Sump Guard is mandatory and is sold separately unless specifically stated otherwise.

Recommended Supporting Upgrades

• 4mm Aluminium Engine & Sump Guard for Toyota Land Cruiser Prado 150 – required
• Steel Engine & Sump Guard for Toyota Land Cruiser Prado 150
• Steel Gearbox Guard for Toyota Land Cruiser Prado 150
• Steel Fuel Tank Guard for Toyota Land Cruiser Prado 150
• Differential protection
• Rock sliders / heavy-duty side protection
• Front and rear recovery points
• Suspension lift kit
• Off-road wheels and tyres
• Raised air intake / snorkel

Installation

• The matching 4mm Aluminium Engine & Sump Guard must already be fitted
• Vehicle-specific installation for Toyota Land Cruiser Prado 150 / J150
• Designed around factory mounting holes
• No structural vehicle alteration should normally be required
• Required mounting hardware is included
• Installation instructions are supplied
• Install all fixings loosely before final alignment and tightening
• Check clearance around the gearbox, exhaust and moving drivetrain components
• Re-check mounting hardware after initial off-road use
• Professional installation is recommended where the vehicle has corrosion or previous underbody modifications

Estimated fitting time: approximately 1–2 hours once the matching front aluminium guard is installed, depending on vehicle condition and workshop equipment.

Warranty

This underbody protection guard is supplied with a 24-month manufacturer's warranty. :contentReference[oaicite:8]{index=8}

FAQs

Q1: What vehicle does this aluminium gearbox guard fit?
A: It is designed for Toyota Land Cruiser Prado 150 / J150 models manufactured between 2009 and 2023.

Q2: Does it fit all Prado 150 engine variants?
A: Yes. The gearbox guard application is listed for all engine variants. :contentReference[oaicite:9]{index=9}

Q3: Can I install this gearbox guard without the aluminium sump guard?
A: No. The matching 4mm Aluminium Engine & Sump Guard is mandatory for correct installation. :contentReference[oaicite:10]{index=10}

Q4: How thick is the aluminium?
A: The gearbox guard is manufactured from 4mm thick aluminium. :contentReference[oaicite:11]{index=11}

Q5: How much does the guard weigh?
A: The guard weighs approximately 9kg. :contentReference[oaicite:12]{index=12}

Q6: What does this guard protect?
A: It is designed specifically to protect the gearbox and transmission area against underside impacts.

Q7: Are the mounting brackets aluminium?
A: No. The main protection shield is aluminium while the mounting brackets are manufactured from steel. :contentReference[oaicite:13]{index=13}

Q8: Is the guard reinforced?
A: Yes. External aluminium reinforcement sections increase resistance to impact and deformation. :contentReference[oaicite:14]{index=14}

Q9: Is the guard powder coated?
A: Yes. The protection assembly is powder coated to provide additional corrosion protection. :contentReference[oaicite:15]{index=15}

Q10: Are mounting components included?
A: Yes. Screws, nuts, clips and all required fastening accessories are supplied. :contentReference[oaicite:16]{index=16}

Q11: Does installation require drilling?
A: The guard is designed around the vehicle's factory mounting holes, so structural modification should not normally be required. :contentReference[oaicite:17]{index=17}

Q12: Is a steel gearbox guard alternative available?
A: Yes. A matching 2.5mm steel gearbox guard is also available for the Prado 150, together with its required steel engine & sump guard.

Q13: Can this aluminium gearbox guard be used with the steel fuel tank guard?
A: Yes. The aluminium front and gearbox protection can be combined with the steel Prado 150 fuel tank guard where a mixed-material protection setup is preferred.

Q14: Is aluminium suitable for expedition vehicles?
A: Yes. Aluminium is particularly useful on heavily equipped touring vehicles because it combines strong protection with lower weight and excellent corrosion resistance.

Q15: Can this be fitted to a lifted Prado 150?
A: Yes. A conventional suspension lift does not normally interfere with installation provided the original chassis and drivetrain mounting arrangement has been retained.

Q16: Can the gearbox guard be removed for servicing?
A: Yes. It can be removed when access to the gearbox or surrounding drivetrain components is required.

Why Buy from OFM4x4.CO.UK

• Toyota Land Cruiser off-road upgrade specialists
• Complete Prado 150 steel and aluminium underbody protection range
• Technical support before and after purchase
• UK-based customer service
• Heavy-duty protection for serious 4x4 use
• Carefully selected products for touring, overland and expedition builds