Engine Warranty

Aircooled Hut UK – Engine Warranty Terms & Conditions

All goods and work carried out by Aircooled Hut UK are sold subject to the warranty terms and conditions set out below. This warranty is valid for the following period for material or workmanship failures of all road-only engines supplied by Aircooled Hut UK. Any engine classed as a Race Engine has a limited warranty (see terms at the bottom of the page).

Reconditioned / Exchange Engines and New Engines have 12 months unlimited miles, limited to the United Kingdom only.

This warranty covers the bottom end and top end of the engine. This includes crankshaft, connecting rods, camshaft, bearings, pistons/barrels, cylinder heads, rockers, pushrods/tubes, and flywheel.

Gearboxes sold by us are covered by the warranty of our chosen gearbox specialist.

Refurbished engines built up to complete engines will have video evidence of running as proof of completion. No warranty is available on used parts fitted or on the setup or tuning of the engine beyond this.

New Turnkey Engines have a 1-year warranty (quotes/invoices accepted after this date). The warranty covers the engine to ensure it is fit for purpose; as such, any coatings are not covered by this warranty. During the warranty period, Aircooled Hut UK guarantees its product against defective workmanship and/or failure of components used in the reconditioning of the engine and will only be responsible for rectification of a faulty engine subject to the following conditions.

All engines must be tuned immediately on a rolling road to ensure correct fuelling. Failure to do so will invalidate any warranty. Proof in the form of a VAT receipt and dyno graph print-out will be required in the event of a warranty claim. Please ask the rolling road operator not to perform power runs while the engine is still being run in.

A 500-mile running-in period is required following installation, at a speed not exceeding 3,000 RPM. Once run in, treat your engine with care and remember this is a classic air-cooled engine and will not withstand being driven like a modern vehicle.

Fitting.

The engine must be fitted and serviced by a reputable VAT-registered garage, with proof provided to Aircooled Hut UK in writing. The engine should be stopped immediately if any sign of engine part or complete failure is detected, or if any sizeable oil leak occurs. Oil must be checked on a regular basis and all tinware must be in place.

Oil leaks are a common issue with classic engines; only leaks of a sizeable amount will be dealt with under warranty.

Ancillaries and consumables such as distributors, coils, carburettors, alternators, clutch discs/pressure plates, filters, plugs, leads, strainers, points, and main oil seals are not covered under this warranty and are instead covered by the manufacturer’s warranty where applicable. At our discretion, parts may be supplied as a goodwill gesture if failure is proven to be within 28 days.

Engine tuning is not covered, including carburettors, EFI tuning, ignition timing, points, and spark plugs. We perform the initial tune and start-up on Turnkey Engines to ensure there are no issues; however, further tuning is required on a rolling road. There is no guarantee the engine will remain in tune during transit.

Engine oil must be changed after the first 20 minutes of running to bed in the camshaft (performed by Aircooled Hut on Turnkey Engines), at 100 miles, and at 500 miles. The 500-mile service must include: checking and resetting tappet clearances (excluding hydraulic lifter engines), an oil change, and checking ignition distributor timing and resetting if necessary.

This warranty does not cover engine failures resulting from customer or third-party poor installation, poor maintenance, or damage caused by a minor issue being allowed to develop into a major fault. It also excludes fair wear and tear, misuse, neglect, accident, incorrect fuel or oil, racing or speed trials, unauthorised modification or repair, external influences, or failure of existing customer ancillaries.

Cosmetic appearance is not covered under this warranty, including paint or powder-coat variations, wear, rust, or other cosmetic issues. Images or video of completed work will be taken as acceptance of cosmetic quality. Tinware will be coated black unless written instruction is received at least one month prior to completion.

Any engine or part requiring inspection, repair, or replacement under warranty must be returned to Aircooled Hut UK. All removal, packaging, transportation, and return shipping costs are the sole responsibility of the customer and must be at no cost to Aircooled Hut UK, regardless of whether the warranty claim is accepted or rejected. No warranty work will be authorised or reimbursed unless the engine or part has been returned for inspection.

Aircooled Hut UK will not be responsible for consequential losses including towing, courier charges, car hire, accommodation, loss of earnings, or overseas recovery costs. Any fault must be reported immediately and confirmed in writing with photographic evidence.

All engines returned under warranty will be inspected for signs of overheating or user error. The warranty is invalidated if the engine shows evidence of overheating, including triggered overheat tabs. If damage is found to be caused by overheating, improper fitment, carelessness, or intentional damage, all repairs will be chargeable at current labour rates plus parts.

This warranty is not transferable. Shipping insurance is optional and any shipping damage or loss is strictly between the customer and courier. Claims exceeding £200 will not be paid until insurance settlement is complete.

If a reconditioned engine is replaced under warranty, the replacement engine will be covered for the remaining balance of the original warranty period.

This warranty applies to Mainland United Kingdom and Northern Ireland only. Aircooled Hut UK Ltd reserves the right to amend these terms at any time without prior notice.

Race Engines: Engines fitted with camshafts exceeding 0.350” lift, crankshafts larger than 69mm, producing over 100 BHP, or using EFI, turbocharging, or nitrous oxide systems are classed as Race Engines and are not for street use. Any road-based engine used for racing is also classed as a Race Engine. Race Engines carry a 30-day limited warranty covering the long block only, excluding tuning, cosmetics, and cooling systems.

Delivery: All parts, engines, and gearboxes must be checked and any faults or damage reported within 14 days of delivery.

Nothing in this warranty affects the customer’s statutory rights. Trade customers must ensure these terms are passed to their customers.

Aircooled Hut UK Limited

Please print a copy of these warranty terms.