The 02051 - Gear box is used in the following:

Exceed R/C - Xtreme
Wind Hobby - Mutant
Exceed R/C - OutLaw
Wind Hobby - Behemoth
Exceed R/C - Infinitive
Himoto - ELDORADA E - STARTER VERSION
Himoto - RAPIDA PRO E - STARTER VERSION
Himoto - RAPIDA PRO
Himoto - SYCLONE PRO E - STARTER VERSION
Himoto - PYTHON XV3
Himoto - SYCLONE
Himoto - SYCLONE PRO
Himoto - PYTHON XV3 UPGRADE
Himoto - RAPIDA
Himoto - TAIPAN XRS
Himoto - RAPIDA UPGRADE PRO
Himoto - ELDORADA
Himoto - ELDORADA UPGRADE
Amax - Xtreme
Redcat - Lightning STR
Redcat - Shockwave
Redcat - Tornado BB & S30
Redcat - Lightning EPX PRO
Redcat - Tornado EPX PRO
Redcat - Volcano EPX PRO
Redcat - Vortex EPX PRO
Redcat - Volcano EPX
Redcat - Vortex EPX
Defualt Setups|1/10 scale nitro|1:10 SCALE TWO SPEED NITRO POWERED 4WD OFF - ROAD BUGGY
HSP - Sonic
HSP - Pace Setter
HSP - Atomic
HSP - Flying Fish
HSP - Sedrmer
HSP - Warhead
HSP - Tyrannosaurus
HSP - Stomer
HSP - Gladiator
HSP - Sidewinder
HSP - Brontosaurus
HSP - Tribes head
HSP - Apollo
HSP - Salvager
HSP - Tokot Boy
HSP - Backwash
Amax - Howitzer
Amax - Cheetah
Exceed R/C - Mutant
Wind Hobby - Seorider
Redcat - Tsunami
Wind Hobby - Oryx
Wind Hobby - Sport
Amax - Sedrmer
Wind Hobby - Dash
Wind Hobby - Swift
HSP - Rally Monster
HSP - Rally Monster
HSP - Flying Fish
HSP - Tribeshead
HSP - Brontosaurus
HSP - Tyrannosurus
HSP - XSTR
HSP - Warhead
HSP - Stromer
HSP - Xeme
HSP - Sonic
HSP - Pace Setter

The 02051 - Gear box may also be used used in other models please refer to your instruction manual for the correct part.
Actual product may vary from picture.