IO-520 BB,CB,MB

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Description

Continental At Overhaul 100% Parts Replacement List
Engine Model: IO-520 BB,CB,MB

*Note: This list is not all-inclusive and may not be current. Consult the latest manufacturer’s approved data before installing any part.

 

 

Description

Part No.

Qty.

Major Overhaul Gasket Set

632429A3
SA632429-A3

1

Major Overhaul Gasket Set (No Intake Hoses)

633424A3

1

Intake Hoses (Qty for IO-520-BB)

642917-1
SA642917-1

10

Hydraulic Valve Lifter Intake (Old Part # 628488)

658088
SA628488

6

Hydraulic Valve Lifter Exhaust (Old Part # 646277)

658077
SA646277

6

Connecting Rod Bearing

642398
AEC642398
SA642398

12

Main Bearing Set (Phase 3 Case)

646592-A1
AEC646592-A1
SA646592-A1

1

Rocker Arm Bushing (One Piece Bushing)

520129
SA520129

12

Connecting Rod Bushing

530658
SA530658

6

Counterweight Pin

643626-105
AEC643626-105
SA643626-105

4

Counterweight Pin

643626-104
AEC643626-104
SA643626-104

2

Counterweight Pin

643626-103
AEC643626-103
SA643626-103

2

Counterweight Bushing

350998
AEC350998
SA350998

16

Counterweight Retaining Plates

643629
SA643629

16

Counterweight Snap Rings

629104
SA629104

16

Connecting Rod Bolts
(Old Part # 629340, 654068 & 631794)

655961
AEC629340
SA629340
SA631794

12

Connecting Rod Nuts (Old Part # 628109, 631554)

654490
AEC628109
SA628109
SA631554

12

Connecting Rod Cotter Pins

MS24665-229

12

Camshaft Bolts

631088-.44
SA631088-.44

4

Crankshaft Bolts (Old Part # 536379)

656990
SA536379

6

Crankshaft Alternator Face Gear Bolts

649205
SA649205

4

Crankshaft Alternator Face Gear Lock Plate

641909
SA641909

2

Woodruff Keys

MS35756-8

2

Magneto Drive Rubber Bushings
(Old Part # 638172)

655269
SA638172

4

Exhaust Valves
(Old Part # 643873, 652956 & 646286))

655771
SA643873

6

Exhaust Valve Rotocoils (Old Part # 629117-1)

652112 
AEC652112
SA629117-1

6

Valve Keepers

24802
SA24802

24

Valve Springs Inner

654442
SA654442

12

Valve Springs Outer

654441
SA654441

6

Piston Pins

630046
AEC630046
SA630046

6

Piston Rings (For Steel Barrel)

SA5000-SC5

6

Pistons (Old Part # 648013, 648045)

654850
AEC648045
SA648013

6

Rocker Shafts

652984
AEC652984
SA652984

12

Rocker Shaft Retaining Bolt Washer
(Old Part # 652947)

653309
SA652947

12

Rocker Shaft Retaining Bolt

MS90725-12

12

Rocker Shaft Thrust Washer (Old Part # 639573)

653188

24

Crankcase Through Bolt

641931-10.75
AEC641931-10.75
SA641931-10.75

7

Cylinder Hold Down Nuts (Old Part # 531001)

652422
SA531001

36

Cylinder Hold Down Nuts (Old Part # 634505)

652541
SA652541
SA634505

12

Crankcase Nose Seal

641250
SA641250

1

Exhaust Clamps ( Turbocharged Engines)

N/A

 

Fuel Pump Drive Coupling Per TCM MSB 95-6

N/A

 

360 Series Oil Screen Per SB 96-4

N/A

 

360 Series Oil Suction Screen Per SB 96-4

N/A

 

Oil Pump Gears Per TCM SB 96-4 & CSB 96-5

N/A

 

Ignition Harness (SLICK)

M2828

1

     

Lockwasher:

1/4"          (Old Part # MS35333-40)

AN936-A416

A/R

5/16"        (Old Part # MS35333-41)

AN936-A516

A/R

3/8"          (Old Part # MS35333-42)

AN936-A616

A/R

7/16"        (Old Part # MS35333-43)

AN936-A716

A/R

Flatwasher:

1/4"

AN960-416

A/R

5/16"

AN960-516

A/R

3/8"

AN960-616

A/R

7/16"

AN960-716

A/R

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Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, Aircraft Specialties Services does not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice. Applications and interchangeability information depicted on this website is strictly for reference only. Installers must consult the engine/airframe IPC for the manufacturer’s approved data.