McCulloch MAC 10-10A Chainsaw Parts Lookup Diagram

Part numbers which have changed since the previous printing of the illustrated parts list covering this model, are indicated by a dash (-) preceding the new part number. The dash precedes part numbers changed by a letter suffix as well as those changed to an entirely new number.

Engine Exploded View, General

110454 Nut - Hex 5/16-24 2 41 -68532 Body 1

2 100440 Washer5/16 2 42 -68653 Gasket 1

3 Clutch Guard & Starter Assy

(See Figure 2)

43 110334 Screw - Oval hd 12-24 x 1-3/4 1

1 44 68442 Cover Fuel tank 1

4 Bar & Chain (See Figure 6) 1 45 62102 Gasket- Cover 1

5 102761 Screw - Hex hd 10-24 x 7/8 2 46 64848 Hose Assy Fuel 1

6 100352 Washer- #10 2 47 63932 . Filter Fuel 1

7 61678 Plug- Nut retainer 1 48 100440 . Washer 1

8 101326 Nut - Hex 10-24 2 49 67944 Spring - Hose stiffener 1

9 102130 Screw - Hex 1/4-20 x 1-1/2 1 50 110551 Screw - Hex hd 10-24 x 2-1/8 2

10 100153 Lockwasher - 1/4 1 51 68807 Bracket Assy 1

11 63484 Clamp Frame 1 52 Carburetor Assy (See Figure 4) 1

12 -68410 Frame & Grip Assy 1 53 68132 Gasket - Carburetor 1

13 103746 Nut - Hex 3/8-24 1 54 66678 Spacer - Carburetor 1

14 -68835 Clutch Assy

15 64583 Retainer

55 68131 Gasket Spacer 1

56 110553 Screw - Hex hd 10-24 x 1-3/8 2

16 66384 . Spring - Clutch 2 57 68582 Lockplate 1

17 67233 . Shoe - Clutch 2 58 100003 Washer - #10 2

18 -68842 Rotor Assy 1 59 66189 Sleeve 2

19 -68837 Spring - Pawl 2 60 110516 Screw - Hex hd 10-24 x 1-1/8 1

20 67112 Rivet 2 61 -68523 Lockplate 1

21 68836 Pawl 2 62 Fuel Tank Assy (See Figure 3) 1

22 65473 Washer- Special 2 63 68130 Gasket- Fuel tank 1

23 65370 Kit Sprocket, Drum & Bearing 64 66659 Insulator Fuel tank 1

Assy 1 65 68130 Gasket - Insulator 1

24 65368 Sprocket & Drum Assy 1 66 106078 Screw - Hex hd 10-24 x 7/16 1

25 110330 Bearing

26 61692 Shim

67 102289 Screw - Hex hd 10-24 x 3/4 1

68 68508 Lockplate 1

27 103879 Key - Woodruff 1 69 -68845 Brace- Handle

28 68445 Cover Assy - Air cleaner 1 70 -68863 Kit Muffler 1

29 65813 . Nut 1 71 67838 Screw - Muffler long 2

30 68177 Plate - Instruction 1 72 67837 Screw Muffler short 1

31 66774 Filter Air 1 73 67836 Lockplate 3

32 62978 Screw - Special 3 74 -68838 Muffler Assy 1

33 -102762 Screw 10-24 x 1/2 1 75 -110563 Screw Skt hd 8-32 x 1/4 2

34 -28052 Lockplate 1 76 -64784 Stop Reed 1

35 -68544 Housing - Fan 1 77 -64785 Reed 1

36 -68531 Cap Assy - Fuel 1 78 -63993 Gasket - Muffler screw 1

37 -68533 Plug 1 79 -68149 Gasket - Muffler 1

38 63041 Valve 1 80 -68581 Insulator - Shroud 2

39 62316 Guide 1 81 67910 Shroud 1

40 63040 Spring 1 82 Powerhead Assy (See Figure 5) 1

Fuel cap assemblies and their component parts for engines furnished with two-piece fuel caps (identified by rivets in the fuel cap cover), should be ordered from the following parts list.

67266 Cap Assy Fuel 1

110510 . Rivet

67267 Cover

63040 Spring

62316 Guide 1

63041 Valve 1

64761 Body 1

65671 Gasket 1

Clutch Guard and Starter Assembly

67206 Clutch Guard Assy 1 

9 -68695 Drum - Starter 1

1 102144 . Screw - Bar adjusting 1 

10 110470 Rivet - Starter rope 1

2 102067 Nut Hex #10 1 

11 62191A Insert - Handle 1

3 110387 Washer - Wave 1 

12 62190A Handle- Starter 1

4 61705 Nut- Bar adjusting 1 

13 67125 Rope- Starter 1

5 101174 . Washer #10 1 

14 68626 Spring - Rewind 1

6 67205 Retainer - Shield 1 

15 63987 Shield Spring 1

7 63985 Shield- Dust 1 

16 61635A Bushing - Nyliner 1

8 63986 Washer - Thrust 1 

17 67207 Guard - Clutch 1

Fuel Tank Assembly

1 -68683 Fuel Tank Assy 1 

12 110378 Pin - Roll 3/16 x 1-1/8 1

2 105788 Rivet 2 

13 65734 Spring - Throttle return 1

3 110531 Rivet 3 

14 67224 Trigger 1

4 100010 Cotter Pin 1 

15 103672 Screw - Filhd 8-32 x 1/2 (Sems) 1

5 - 102660 Screw - Skt hd 10-24 x 7/8 1 

16 62973A Wire Assy Stop switch 1

6 -100003 . Washer - #10 1 

17 62451 Contact - Switch 1

7 105673 Pin - Roll 3/32 x 9/16 2 

18 62950A Base - Switch 1

8 -68517 Button - Choke 1 

19 62951 Button- Switch 1

9 -101056 "O" Ring 1 

20 68170 Rod - Throttle 1

10 64871 Button & Rod Assy 1 

21 67355 Rod - Choke 1

11 67989 Seal- Throttle rod 1 

22 -64872 Grip Handle 1

Carburetor Assembly

67876 Carburetor Assy 1 

17 *67502 Spring - Needle 3

1 67501 Screw - Pump cover 4 

18 70798 Screw - Diaphragm cover 4

2 67484 Cover - Pump 1 

19 67485 Cover- Diaphragm 1

3 *67495 Gasket - Cover 1 

20 *67499 Diaphragm Metering 1

4 *67498 Diaphragm - Check valve 1 

21 *67496 Gasket - Diaphragm 1

5 *67497 Diaphragm - Fuel pump 1 

22 *67500 Screw - Lever pin 1

6 *47690 Screw- Plate 3 

23 *67508 Pin- Lever

7 67487 Plate - Throttle 1 

24 *67509 Lever - Metering

8 67489 Clip- Shaft 1 

25 *67503 Spring - Lever 1

9 67486 Shaft Assy - Throttle 1 

26 *67491 Valve - Needle 1

10 67490 Plate- Choke 1 

27 68103 Body Assy Carburetor 1

11 67488 Shaft Assy Choke 1 

28 *67492 . Plug - 3/8 1

12 *100302 BallChoke friction 1 

29 *67493 Plug - 5/16 1

13 *67504 Spring - Choke 1 

30 *67507 Screen Fuel 1

14 *68104 Needle - High speed 1

15 *68105 Needle - Idle 1 

67482 Gasket Set

16 *68106 Screw - Idle adjustment 1 

68107 Repair Kit

Powerhead

1 101391 Nut - Hex 3/8-24 1 

42 110291 Screw - Pan hd 10-24 x 2-3/4 1

2 61737A Flywheel Assy 1 

43 63072 Cover - Oil tank 1

3 103879 Key - Woodruff 1 

44 62116 Gasket - Cover 1

4 67057 Washer - Thrust 1 

45 57129A Cap - Oil tank 1

5 67056 Seal 1 46 101148 "O" Ring 1

6 67054 Washer - Thrust 1 

47 62123B Hose Assy - Oil 1

7 -110127 Screw - Hex hd 10-24 x 7/8 

48 51506 . Screen - Hose 1

49 110333 Screw - Oval hd 8-32 x 1/2 3

8 100003 Washer #10 2 

50 62274 Gasket 1

9 51253 Retainer- Coil 1 

51 62320C Pump Assy Pulse 1

10 68164 Lamination Assy 1 

52 60260A Piston Assy - Pump 1

11 62819 Wire Assy Ground 1 

53 104001 "O" Ring 1

12 62818A Wire Assy - Primary 1 

54 60263 Ring - Piston 1

13 62927A Coil & Terminal Assy 1 

55 60937 Washer - Teflon 1

14 67300 Wire & Sleeve Assy - Spark plug

56 60259 Spring - Piston oiler 1

57 62227 Sleeve - Oiler adjustment 1

15 67127 Sleeve - Spark plug wire 1 

58 110386 Screw - Hex hd 8-32 x 1 1

16 62932 Connector 1 

59 100251 Nut- Hex 8-32 1

17 62926 . Boot 1 

60 63858 Cover Assy - Outlet valve 1

18 63097 Spark Plug 1 

61 106104 "O" Ring 1

19 110349 Screw - Rd hd 8-32 x 3/4 1 

62 62885A Spring - Outlet valve 1

20 62362 Cover- Breaker box 1 

63 102809 Ball 1

21 100298 Nut- Hex 6-32 1 

64 62321B Body Assy Pump 1

22 62365 Spacer - Breaker screw 1 

65 62065 Bolt Bar mounting 2

23 110346 Screw - Hex hd 6-32 x 3/4 1 

66 67908 Crankcase Assy 1

24 100934 Screw Rd hd 8-32 x 3/8 2 

67 62105 Screw Assy - Sealing 4

25 105976 Washer - #8 1 

68 62842 . Washer - Sealing 4

26 100414 Screw - Fil hd 8-32 x 1/2 1 

69 110289 Screw Assy 8-32 x 1-1/8 1

26A 100252 Lockwasher- #8 1 

70 110288 Screw Assy - 8-32 x 3/4 3

27 100080 Washer- #8 1 

71 100010 . Pin Cotter 1

28 61650 Condenser 1 

72 61649 Pin-Piston 1

29 62363 Breaker Assy 1 

73 68226 Piston Assy 1

30 54184 Wiper 1 

74 62814 Ring Set Piston 1

31 62361 Box -Breaker 1 

75 103512 Bearing - Needle 2

32 67051 Seal 1 

76 65401 Connecting Rod Assy 1

33 100414 Screw - Hex hd 8-32 x 1/2 2 

77 61627A Screw - Skt hd 8-36 x 1/2 2

34 100955 Nut Hex 8-32 1 

78 63225 . Roller - Needle (set of 20) 1

35 62261A Housing - Pump 1 

79 67906 Oil Seal 1

36 62262 Cap Housing 1 

80 63464 Ring - Snap 1

37 62266 Plunger Pump 1 

81 67905 Bearing- Ball 1

38 101056 "O" Ring 1 

82 65747 Oil Seal 1

39 66687 Spring 1 

83 104357 Bearing - Needle 1

40 62230 Gasket 1 

84 63336 Crankshaft 1

41 62909 Valve 1

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