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Mercury's Unique Warranty

At Mercury we understand that your OEM and dealer are your partners and that your manufacturers’ warranty is more than a piece of paper, it’s a cornerstone of your business. And because of the technical excellence of our Quicksilver Dual Fuel System we can give you the best Powertrain warranty in the business, a warranty that delivers complete protection to the operator, dealer and OEM. Mercury Fuel Systems Ltd warrant that if The Conditions are met claims on any parts included in The Schedule will be indemnified to a maximum of £20,000.

Any warranty claims covering gas related problems will be covered by Mercury’s extensive warranty. In the event of a roadside breakdown caused by the Dual Fuel system, repairs will be covered under the MFS agreement, however the system is usually disabled automatically allowing the engine to revert to diesel only operation allowing the vehicle to continue its journey and subsequently back to base.

The Schedule


The warranty covers rocker covers, cylinder heads, rocker gear, push rods, valves, valve guides, springs and seals, block, liner and liner seals, pistons and rings, connecting rods and bearings, crankshaft and bearings, camshaft and followers, inlet and exhaust manifolds and catalytic converter).

Fuel System

Altitude compensator, brake vacuum pump, cold start device, fuel injection pump, Injectors, fuel lift pump, high pressure metering head, hydraulic timing mechanism, low pressure supply pump, manifold boost pressure compensator, pump drive gear and shut off mechanism. (Excluding fuel lines, glow plugs, pipes, injection timing adjustments, calibration, bench testing and emission test failures).


The complete Turbo unit is covered (including wastegate if it is an integral part of the turbo unit and cannot be bought separately).


All casings and internal parts including transfer boxes, overdrive units, torque converters and PTO units (only if supplied as original equipment) but excluding external linkages and controls

Working Materials

Should any authorised repair to any of the above components require essential replacement or topping up of lubricants, oils or coolant or replacement of the oil filter or the replacement of casings these shall be included as part of the total claim (within the warranty limits).

The Conditions

a. The vehicle must have been serviced and maintained according to the manufacturer’s recommended service intervals up to the time of the damage occurring under a recognised Repair & Maintenance contract by either:

  • A main dealer.
  • By an appropriate service centre carrying the necessary accreditation.

b. The Quicksilver system must have been maintained under a Mercury service contract up to the time of any damage occurring. If Quicksilver is installed using a Mercury rental package this condition will be automatically fulfilled. The lubrication, coolant and diesel injection systems must be in good working order at the time of the damage occurring.

c. The truck must be less than 3 years old or have been driven for less than 700,000 kilometres whichever comes first. Further cover can be supplied for older & higher mileage trucks. Please contact us for more details.