DE-BUG CLEAN FUEL UNIT                                                                                              


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The L500 De-Bug Unit eliminates existing microbial infestations and continually prevents infestations from re-occurring, simply by using the engine or re-circulation system.

If you have bugs in your fuel/ oil you can expect a notable improvement in power, 5%+* reduction in fuel use and filters will last normal service intervals. Injectors and fuel won't block or corrode because of the diesel bugs.

Ref*: Savings


For: Diesel fuel, marine diesel, light oils, gas oil, jet, kerosene.
Engine Ratings:
100 to 500 horsepower.

Max Hourly
Flow Rate: 500 litres per hour.
Flow Direction with unit mounted:

LM6 - marine grade, anti-corrosive aluminium alloy.
1.5 kilograms.
127mm wide, 160mm high, 115mm deep.
Port Size
: 1/2 inch National Pipe Thread tapered or British Standard Pipe Thread.
 * Use Only Brass Fittings
Operating Pressure:
50 psi.
Two 10mm bolts.

Applications: Trucks, generator sets, machinery, Boats, bulk tanks and fluid treatment applications
 up to 500 L/hour.

As with all De-Bug Units - the L500  is unconditionally guaranteed against manufacturing defects for 12 months


Post Mistress - Perth, Western Australia
Photo provided by Greg Milner


Fitting and Operating:
The L500 De-Bug Unit is the size of a typical filter housing and is easily installed to the fuel line before the primary filter.
As most Diesels have recirculating fuel systems, the diesel is continuously passed through the L500 De-Bug Unit to provide systematic destruction of microbial contaminants in the fuel tank. Your filters remain virtually clear of slime and the engine will retain operating efficiencies longer over service cycles. All of these benefits are permanently achieved without the use of any biocide chemicals. Provided the unit is properly fitted and used, the L500 De-Bug unit is guaranteed to significantly reduce microbial contamination.

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  Photos of 4x4 installations  

Landcruiser 100 series

Landcruiser 80 series   

Pajero DID 



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