L. Gardner and Sons Ltd was a British builder of diesel engines for stationary, marine, road and rail applications. The company was founded in Hulme, Manchester, England in 1868. It started building engines around 1895. The firm ceased engine production in the mid-1990s. 

Glasgow Engineering can supply filters and some parts for Gardner Engines 

Identify your Gardner 


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Gardner 6LW 

The Gardner LW series engines can be identified by the fuel pump being bolted to the timing case, this engine was available in 2, 3, 4, 5, 6 & 8 cylinder configurations 

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Gardner 6LX / LXB

The Gardner LX / LXB series engines can be identified by the fuel pump being driven by a drive shaft from the timing case and was available in 6 & 8 cylinder configurations. The Gardner 6LX engine was designed as a direct replacement for the 6LW with the same footprint. 

To identify the difference between LX & LXB engines 

Gardner LX engines have rounded corners on the cylinder heads / Gardner LXB engines have square corners on the cylinder heads

Gardner LX engines have 45 degree angle on the exhaust valve seat / Gardner LXB engines have a 30 degree angle on the exhaust valve seat

Gardner LXB engines have four extra 3/8 BSF studs at each end of the cylinder head bolting the heads to the cylinder block   

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Gardner 8L3 / L3B

Gardner L3 / L3B engines can be identified by separate cylinder heads for each cylinder , they also have L3 or L3B cast into the sump on the fuel pump side. While L3 and L3B engines look similar they are not, the L3 engine uses the same cylinder liners as the L3B but the pistons are different, L3 valves are larger than the L3B valves. Early L3 engines had white metal mains and big ends then they transitioned to white metal mains and slipper big ends, L3B engines all have slipper bearings. 

Gardner L3 engines were manufactured in 3, 4, 5, 6 & 8 cylinder configurations 

Gardner L3B engines were manufactured in 6 & 8 cylinder configurations