Genuine Thunder Tiger gasket set for the PRO-50BK nitro engine — the .50-size powerplant behind the Sledge Hammer S50 and Thunder Tiger's big nitro surface machines. This is the complete sealing refresh in one packet: aluminium head gasket, fibre backplate gasket, carburettor O-ring, shim washers, and circlip, covering every sealing surface an engine strip disturbs.

Gaskets are single-use parts — they crush to make their seal and won't reliably seal a second time — so fitting the full set at rebuild is the difference between an engine that tunes crisply and one that chases its tail. The classic symptoms of tired gaskets on a nitro engine are exactly the faults that get blamed on the carb: a lean run that no needle setting cures, an idle that wanders as the engine heats up, or compression that feels soft with fresh internals fitted. A leaking backplate or carb-base seal draws air the fuel system can't account for; fresh gaskets take that variable off the table.

Fit the aluminium head gasket like-for-like without stacking extras, as it sets the head clearance and compression, and seat the backplate gasket dry on clean, straight surfaces. With Thunder Tiger's engine production wound back, genuine PRO-series sealing sets like this are the parts worth having on the shelf before a rebuild needs one.

Specifications

Brand: Thunder Tiger
Part number: PN0243
Type: Engine gasket set
Contents: Aluminium head gasket, backplate gasket (fibre), carburettor O-ring, shim washers, circlip
Suits: Thunder Tiger PRO-50BK