CTP Vane Air Starter Motors –
Vane air starters are the most commonly used air starters throughout the world. The vane motor develops maximum
horsepower at a much lower speed of 5,000 to 6,000 rpm, and only requires a small amount of lubrication for maximum
life. The decreased speed of the vane motor improves bearing life, and delivers more torque per pound of weight than
piston air motors.

Vane Air Starter Features
• All models sealed for use in air or gas applications
• Offset design for simple mounting
• Powerful motors
• Multiple offset gear ratios: B = 2.18:1; C = 2.53:1;
C = 2.69:1; D = 3.44:1, D = 3.94:1; E = 3.46:1
• Backcap ports for injection lubricating

Vane Air Starter Motor

Part # Engine Model/Application
7W9655 3304/B, 3306/B
1065521 3306
7C3374 3508/B, 3512/B, 3516B
7C3372 3508/B/C, 3512/B, 3516/B/C, C32
1055081 C11, C12, C13, C15, C18, 3406, 3408

Turbo Air Starters†

Part # Engine Model/Application
1544576 G3606, G3608
2463274 C15, C18

Vane Air Starter Versatility
• Inertia and pre-engaged starters available
• 4 inlet, 4 exhaust, and 16 drive housing orientations
• 90-150 psi (6.2-10.3 bars) operation
• Inline and offset designs
• Left- and right-hand rotation available

Other parts also available:

Part # Description
6N7570 BOLT – SOCKET HEAD
4N4407 BUSHING – DRIVE HOUSING
7W0529 CLUTCH SPRING CUP – SLEEVE
5N8375 CUP – SPRING
5N8383 CYLINDER
6N7537 CYLINDER
4N4378 CYLINDER
4N4409 DEFLECTOR-1.25″
6N7538 DOWEL
7W0538 DRIVE HOUSING KIT
1244433 DRIVE PINION
1244434 DRIVE PINION
7W1650 DRIVE PINION
4N4384 GASKET – GEAR CASE
4N4376 GASKET – MOTOR HOUSING
2W6081 GEAR A
2W6082 HOUSING KIT – DRIVE
4N4383 HOUSING – MOTOR
5N8364 HOUSING – MOTOR
5N9574 JAW AS – CLUTCH
5N8390 KIT FOR 7C3372
6N7572 LOCKWASHER
1196284 LUBRICATOR GP
5N8363 MOTOR HOUSING COVER AS
5N8378 NUT – ROTOR CLAMP
4N4408 OILER – BUSHING
7W0519 PINION
2W6078 PINION – DRIVE
2W6079 PINION – DRIVE
4N4385 PINION – ROTOR
1055137 PISTON
5N8373 PISTON
4N4398 PISTON
6N7540 PLATE
4N4382 PLATE – FRONT END
5N8365 PLATE – FRONT END
4N4377 PLATE – REAR END
Part # Description
5N8367 PLATE – REAR END
6N7536 RETAINER
6N7535 RETAINER -PINION
6V3971 RING RETAINER
4N4400 RING – SHAFT
5N8388 ROTOR
7W0514 ROTOR
7W4154 ROTOR
4N4381 ROTOR – ALUMINUM
7W0540 SEAL & VANE KIT
7C5105 SEAL KIT
4N4421 SHAFT – DRIVE
5N8384 SHAFT – DRIVE
6N7542 SHAFT – DRIVE
1078769 SILENCER
8N8488 SILENCER
1382544 SILENCER – 1.25″
5N8374 SLEEVE SPRING
6N7545 SPACER
4N4402 SPACER – SHAFT RING
5N8372 SPRING
5N8381 SPRING – CLUTCH
5N8380 SPRING – PINION
5N8389 SPRING – PINION
4N4403 SPRING – PISTON RING
2W6820 VALVE
4N3411 VALVE
4N4380 VANE KIT FOR 1055081
6N7533 VANE KIT FOR 7C3372
6N7547 WASHER
6N7571 WASHER
5N8425 WASHER – DRIVE PINION
5N8428 WASHER – DRIVE GEAR CUP

Engineered for superior
starting performance
CTP air starters are built to withstand the toughest environmental and working conditions — combining
robust features and flexibility to deliver reliable, heavy-duty starting in a wide range of industrial, oil and
gas, marine, power generation, rail, and mining applications.