Has your Discovery 4 (L319) suffered a snapped crankshaft or spun main bearings? We rebuild, remanufacture, and supply heavy-duty 3.0L SDV6, 2.7L TDV6, and V8 engines across the UK. Equipped with OEM-grade components to permanently eliminate original factory defects.
We don't just patch up damaged engines. Our state-of-the-art machine shop strips, refines, and improves the iconic L319 powerplants, addressing known design faults to offer unrivalled reliability.
We eliminate the infamous 3.0 SDV6 spun-bearing issue by line-boring the cylinder block and installing high-grade, wide-flange, keyed main bearings along with high-tensile steel crankshafts.
Every head resurfacing, cylinder hone, and line boring is handled in our own fully equipped engineering facility. We never outsource quality, maintaining strict micron-level tolerances.
Our skilled technicians utilise dealership-level diagnostics to accurately program your newly installed engine, code fuel injectors, and recalibrate engine ECUs.
Save up to 40% compared to franchised dealer replacement prices, while enjoying equivalent precision, higher-grade structural components, and a dedicated personal service.
Recent customer feedback from owners who used our engine supply, replacement, and fitting services.
They sourced the correct engine for my vehicle and the whole process was smooth from start to finish. Great communication and professional service throughout.
The rebuilt engine is perfect and running like new. I saved a significant amount compared to the main dealer and received fantastic advice and support. Very happy!
They verified my engine code, supplied the right engine and fitted it perfectly. Their knowledge and attention to detail gave me total peace of mind. Highly recommended.
Reconditioned engine supplied and fitted in less time than expected. The workshop team were professional and kept me updated at every stage.
Every engine is meticulously tested for micro-cracks, alignment precision, compression levels, and flawless ECU integration before handover. Choose the option matching your budget and requirements.
Find the engine codes customers ask for most often across Jaguar, Land Rover and Range Rover models.
Every Jaguar, Land Rover and Range Rover engine is assessed for failure severity, rebuild viability and machining needs before reconditioning begins, with the aim of restoring oil pressure, compression, timing, sealing and thermal stability.
Electronic fault tracing is combined with compression, leak-down, and lubrication analysis to determine whether the engine is structurally suitable for reconditioning.
The unit is dismantled to core level and cleaned thoroughly to remove carbon, sludge, coolant residue, and metallic debris without compromising machined surfaces or gallery integrity.
Cylinder geometry, crank journals, deck flatness, valve train wear and bearing tolerances are measured precisely, with honing, resurfacing, and seat correction carried out where required.
The engine is rebuilt using renewed wear components, updated timing and sealing hardware, and torque-angle assembly procedures to restore mechanical precision and durability.
Final testing verifies oil pressure, idle stability, thermal behaviour, and ECU compatibility so the finished engine delivers factory-level refinement and dependable performance.
View genuine workshop images that show the quality of our ongoing work, completed replacements and finished results.
The Land Rover Discovery 4 L319 is widely celebrated as one of the most capable, comfortable, and luxurious off-road family vehicles ever built. However, its brilliant chassis design is often compromised by the notorious crankshaft failures plaguing the 3.0-litre SDV6 and TDV6 engines. These devastating engine failures almost always originate from a spun main bearing. Because the factory bearings do not feature locating lugs, they can easily spin out of alignment, blocking vital oil supply holes. This leads to immediate frictional heating, metal fatigue, and inevitably, a snapped or seized crankshaft.
At Britannia Rebuilds, we don't just put back standard parts. We re-engineer the engine's weak spots. Our advanced line-boring procedures modify the cylinder block to host upgraded, keyed main bearings. This, in combination with a hardened, high-tensile steel crankshaft and a modified higher-capacity oil pump, permanently cures the oil starvation vulnerability. Your remanufactured L319 engine is engineered to perform better, run cooler, and last significantly longer than it did when it left the Solihull factory.
Attempting to replace or repair an L319 engine using generalist garages often leads to costly, prolonged delays, improper coding, or premature engine failure. The complex modern Land Rover systems demand specific tools, precision JLR diagnostics, and deep technical training. Sourcing a standard "used engine" from scrap yards carries significant risk, as many of these donor engines are ticking time bombs, already suffering from hidden hairline cracks in the crankshaft or timing chain stretch.
Our complete UK-wide recovery and supply-and-fit service eliminates all stress. We collect your stranded L319, recover it safely to our custom engine facility, and carry out a clean-room installation of our re-engineered engine. The entire process—including deep chemical cleaning of the intercooler, replacement of auxiliary fluids, and complete injector coding—is performed in-house. It's why we confidently provide an uncapped mileage, 12-month warranty, and return your Discovery 4 ready to conquer any trail.
Quick answers about Land Rover engine supply, fitting, rebuilds, reconditioning, and warranty-related questions.
