Lifetime Warranty

Stevenson Lifetime Warranty Coverage

Engine:

Engine block and cylinder heads and all internally lubricated parts including pistons, piston rings, pins and cylinder sleeves; crankshaft, pulley, main bearings, caps and bolts; connecting rods, rod bearings, caps and bolts; camshaft(s), camshaft bearings, buttons and plugs; timing gears and timing chain and belt; rocker arms, rocker arm pivots, shafts and bushings; intake and exhaust valves, springs, guides, adjusters, retainers and seats; pushrods and lifters; intake manifold; exhaust manifolds; balance shaft; water pump; fuel pump; thermostat; oil pump, cover, gears, pressure relief valve and screen; rotor housing, rotors, shims and silent shaft; all internal fasteners, nuts and bolts; turbocharger/supercharger assembly including boost valve and wastegate; oil pan; valve, timing and side covers; thermostat housing; water pump pulley; engine mounts; harmonic balancer; flex plate/flywheel and ring gear; seals and gaskets.

Transmission/Transaxle/Transfer Case:

Transmission/Transaxle case and all internally lubricated parts including ring and pinion gears; oil pump, cover, gears, housing and vanes; torque converter; valve body(s); throttle valve; valve pack; governor, gear and cover; parking gear and pawl; roll pins; sprags; sprockets; chain; springs; stator and shaft; pressure regulator valve; pressure and rings; blockers; synchronizer hubs and keys; bearings; blushings; supports and shafts; control rings; yoke; extension housing; speedometer drive gears; accumulators and rings; adjusters; all internal fasteners, nuts and bolts; shift cover and forks; separate bell housing; oil pan; detent cable; kick down link; TVI/throttle cable; vacuum modulator; transmission mounts; transfer case and all internal parts contained within the transfer case; seals gaskets. (Standard Transmission Clutch Assemblies And All Component Parts Are Not Covered.)

Drive Axle:

Differential/ axle housing(s) and all internally lubricated parts including the axle flange; ring and pinion gear/ carrier assembly; spider gears and bearings; pins; retainers; positraction clutches, plates and springs; cover, constant velocity joints; slip joint; front wheel drive axles/ halfshafts and wheel bearings; u-joints; couplings; flex disc; prop shafts; center support bearings; seals and gaskets.

Vehicles specifically excluded in the list below:

  • Acura NSX
  • Aston Martin - All Models
  • ARO Crosslander
  • Audi A8 W12
  • Audi R8
  • Audi S-Series - All Models
  • Audi RS-Series - All Models
  • Audi A7 Technik
  • Bentley - All Modelss
  • BMW 7-Series - All Models
  • BMW Active E
  • BMW Alpina B7
  • BMW i8
  • BMW Z8
  • Chevrolet SSR
  • Conversion Vans - All Models
  • Daewoo - All Models
  • Dodge Viper
  • Ferrari - All Models
  • Fisker Karma
  • Ford F150 Lightning
  • Ford GT
  • GEM - All Models
  • General Motors C4500
  • General Motors C5500
  • Honda Civic GX
  • Honda FCX
  • Hummer Hummer H1
  • Jaguar S-Type R
  • Jaguar XJ-Type 12 Cylinder
  • Lamborghini - All Models
  • Lexus LF-A
  • Lotus - All Models
  • Maserati - All Models
  • Maybach - All Models
  • Mercedes-Benz B-Class F-Cell
  • Mercedes-Benz - All AMG Models
  • Mercedes-Benz - All V12 Models
  • Mercedes-Benz SLR
  • Mitsubishi FK62F
  • Nissan GT-R
  • Panoz - All Models
  • Plymouth Prowler or Chrysler Prowler
  • Porsche Carrera GT
  • Porsche 918
  • Rolls Royce - All Models
  • Saab - All Models
  • Toyota Mirai
  • Volkswagen Phaeton 6.0
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