- JUST AUTos Sump
300 Series Land Cruiser Sump
For 300 Series owners tackling heavy loads, tough off-road conditions, or high temperatures, the engine’s oil system needs to work harder than ever.
That’s why we created the new 300 Series Sump Kit to provide your engine with more oil, better cooling, and extra reliability, exactly what you need when you’re pushing your vehicle to the limit.
Why upgrade your 300 Series' sump?
If you’re pushing your 300 Series to its limits, whether it’s towing, long-distance touring, or tackling tough off-road terrain, the factory sump may not be enough to keep your engine running smoothly. Under heavy loads and high temperatures, engine oil faces increased stress, and without proper thermal management, it can quickly degrade, leading to overheating and premature wear.
Upgrading your sump ensures that your engine has the necessary oil capacity and cooling to perform reliably under pressure. The extra oil capacity helps maintain stable oil temperatures, while improved cooling features keep the oil circulating at optimal levels, reducing the risk of overheating. Additionally, a sump upgrade protects your engine by offering better filtration and early detection of wear, ultimately boosting the long-term reliability of your 300 Series in demanding conditions.
What Sets our 300 Series Sump Kit Apart
- We've designed this sump kit closely with Harrop Engineering to give 300 Series owners peace of mind, whether they’re towing, touring, or off-roading. It’s all about performance, reliability, and peace of mind on the toughest drives.
- 1.8L extra oil capacityThe new sump adds around 1.8L of oil, providing better thermal mass and more reserve under heavy load.
- Improved coolingWith internal and external cooling fins, the sump helps manage engine oil temperatures during long towing runs and off-road expeditions.
- Magnetic plug for early detectionThe magnetic drain/fill plug catches metal debris, providing early signs of wear and helping prevent more serious engine issues.
- Tough, factory-compatible designBuilt to fit with aftermarket modifications like diff drop kits and bash plates, ensuring no interference with your setup.
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Frequently Asked Questions
How will the Just Autos sump kit improve my vehicle’s performance?
The Just Autos sump kit increases your vehicle’s oil capacity by 1.8L, bringing the total to approximately 8L. This additional oil helps improve thermal management, providing better cooling and oil flow, especially under heavy load and high temperatures. The improved cooling and extra oil volume reduce the risk of engine damage during long towing trips, off-roading, or in hot climates.
Is the 300 Series sump kit compatible with modified vehicles?
Yes! Our sump kit has been specifically designed to accommodate modified 300 Series vehicles, including those with diff drop kits and aftermarket bash plates. We provide spacers and the correct hardware to ensure your sump has the proper clearance, so it fits seamlessly with your setup.
What’s the benefit of the magnetic drain plug in this kit?
The magnetic drain plug is designed to attract and capture fine metal particles circulating in the oil system. This early detection can help identify any wear or potential issues within the engine, allowing you to address them before they become more serious problems, ultimately improving the longevity and reliability of your engine.
Can I install this sump kit myself?
While the Just Autos sump kit includes all required spacers and hardware, it is only available as part of a complete Just Autos package. Installation must be carried out exclusively by Just Autos or an authorised distributor workshop. Parts will not be supplied for self-installation or fitted independently.
This policy ensures correct fitment, safety, and compliance—particularly for modified vehicles. Installation can be booked through Just Autos or one of our trusted distributor workshops.
Does the sump kit come with oil and a filter?
Yes, the sump kit comes complete with a high-quality full synthetic 5W-30 oil and a genuine oil filter, which is laser-etched with the Just Autos branding. The oil is designed to work seamlessly with the sump’s increased oil capacity and ensure the engine stays properly lubricated, even under demanding conditions.
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