Common Rail Cowboys
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Stop constant rear main seal leaks caused by worn or grooved crankshaft surfaces. This precision-engineered repair sleeve creates a new sealing surface without expensive crankshaft replacement or machining – the permanent fix for 1KD-FTV rear main seal problems.
A rear main seal repair sleeve is a thin stainless steel collar that installs over the worn area of the crankshaft. It provides a fresh, smooth sealing surface for the rear main seal to ride on – solving the root cause of persistent leaks.
The Problem: Over time, the crankshaft surface where the rear main seal rides can wear into a groove. Even a new seal will leak because it can't seal against the damaged surface.
The Solution: The repair sleeve covers the worn groove and provides a new, smooth sealing surface. Much cheaper than crankshaft replacement or machine work, and just as effective.
💡 Pro Tip: If you've replaced the rear main seal and it's still leaking, the crankshaft surface is likely worn. A repair sleeve is the permanent solution.
Suits all 1KD-FTV 3.0L engines (Euro 3 and Euro 4).
We have Genuine Rear Main Seal kits available separately (recommended to install new seal with sleeve).
⚠️ Professional Installation Required: This repair requires transmission removal, flywheel removal, and precise sleeve installation. Not a DIY job unless you have proper tools and experience. Additional tools may be required.
*Orders placed before 2 pm AEST on business days, subject to stock availability.
The most common cause is a worn groove on the crankshaft surface where the seal rides. Even a brand-new seal can't seal properly against a damaged surface. A repair sleeve creates a fresh sealing surface without requiring crankshaft replacement.
Yes – the repair sleeve becomes a permanent part of the crankshaft. Once installed correctly with a new rear main seal, it provides a long-term solution to chronic rear main seal leaks.
Yes – you should always install a new rear main seal when installing the repair sleeve. The sleeve is sold separately so you can choose between genuine Toyota or aftermarket seals.
This repair requires transmission removal, flywheel removal, and precise sleeve installation. Professional installation is strongly recommended unless you have the proper tools, workshop manual, and mechanical experience.
Yes – this repair sleeve fits all 1KD-FTV 3.0L engines in Hilux N70, Prado 120/150, Hiace, and Fortuner models (both Euro 3 and Euro 4 variants).
If your rear main seal has been replaced multiple times and continues to leak, or if you can see/feel a wear groove on the crankshaft surface where the seal rides, you need a repair sleeve. Your mechanic can confirm this during inspection.
Much cheaper. A new crankshaft costs thousands of dollars plus extensive labor for complete engine disassembly. The repair sleeve costs a fraction of that and requires only transmission/flywheel removal.
Permanent fix for worn crankshaft surface. Stainless steel construction. Hilux • Prado • Hiace. Free express shipping AU.
Disclaimer: Common Rail Cowboys is not affiliated with Toyota Motor Corporation. Professional installation required. Always install with a new rear main seal.
