5N8378 Nut-Rotor Clamp for Caterpillar

5N8378 is a nut-rotor clamp used in air starter motor applications for Caterpillar equipment and engines. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

Gas engines:

• G3508, G3508B, G3512, G3516, G3516B, G3520B
• G3606, G3606B, G3608, G3612, G3616, G399

Gen set engines:

• 3412, 3508, 3508B, 3512, 3512B, 3516, 3516B
• D379B, D399, G3520B

Gen set military:

• 3608

Generator sets:

• 3412C, 3508, 3508B, 3508C, 3512, 3512B, 3512C
• 3516, 3516B, 3516C, C32, G3516, G3516B

Industrial engines:

• 3412, 3412C, 3412E, 3508, 3508B, 3512, 3512B
• 3516, 3516B, C27, C32

Marine auxiliary engines:

• 3508B, 3508C, 3512, 3512B, 3512C, 3516B, 3516C
• 3608, C32

Marine engines:

• 3412, 3412C, 3412D, 3412E
• 3508, 3508B, 3508C
• 3512, 3512B, 3512C
• 3516, 3516B, 3516C
• 3606, 3608, 3612, 3616, 3618
• C280-6, C280-8, C280-12, C280-16, C32

Mining excavators:

• 5230, 5230B

Petroleum engines:

• 3508B, 3508C, 3512, 3512B, 3512C, 3516C, C32

Petroleum transmissions:

• TH48-E70, TH48-E80

Pumpers:

• SPS342, SPS343

Tractors:

• 776C, 776D, 784B, 784C

Trucks:

• 777D
• 785, 785B, 785C, 785D
• 789B, 789C
• 793B, 793C, 793D
• 797, 797B

Vehicular engines:

• 3508, 3512, 3516

Wheel loaders:

• 994, 994D, 994F

Specifications