Old Britts
850 Engine: crankcases, Filter, Breather, Tachometer Drive
Group 5

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We try to keep all information current, but regret that prices and availability are subject to change. Special Order Items (SO) are priced as of the last time we sold one.
Last updated 11/15/17

Ref No. Part No. Description Qty. Req. Qty. on Hand Status Price Alt
1
064045
Crankcase Halves Assembled, 750/850
1
1
SO
2,400.00
No
2 NM11790 Pin, Dowel, Crankcase
2
6
-
4.09
No
3 062621 Pin, Dowel, Crankcase
2
6
-
5.56
No
4 063020 Bush, Cam, 1973/74 850 R.H.
1
5
-
19.50
No
5 063021 Bush, Cam, 850 & MK3, L.H.
1
5
-
15.60
No
6 064118 Superblend Roller Bearing, Crankshaft, C3
2
6
-
71.00
Yes
7 NMT2187 Oilseal, Main Bearing
1
7
-
1.86
No
8 NMT2196A Crank or Countershaft Sprocket Shim, .003
1
27
-
2.25
Yes
9 063824 Stud, Stepped, 3/8x16 5/16X24 Cyl.base
4
12
-
4.87
Yes
10 062639 Stud, 3/8 x 16 x 24, Cylinder Base
1
8
-
2.51
Yes
11 063857 Washer, 5/16, Flat, Thick
4
30
-
0.89
Yes
12 NM24252 Washer, 3/8, Flat, .625" x .390" x .080"
6
30
-
0.89
Yes
13 062651 Cylinder Stud Nut, 3/8 x 24
1
10
-
8.93
Yes
14 063825 Nut, Cylinder Stud, 5/16 x 24, (Deep)
6
16
-
5.49
Yes
15 062664 Stud, 5/16 x 18 x 24
2
6
-
1.13
Yes
16 060348 Hex Nut, 5/16 x 24, Plated
2
193
-
0.14
Yes
17 062638 Grub Screw, Oil Stop
1
2
-
2.69
No
18 NM21287 Dowel, Hollow, Oil Junction Block
1
4
-
0.52
No
19 062663 Bolt, 5/16 x 24, 3 3/4", Crankcase
1
4
-
7.55
Yes
20 060348 Hex Nut, 5/16 x 24, Plated
1
193
-
0.14
Yes
21 062761 Crankcase Bolt, Short, 5/16 x 24, 1 3/8"
1
5
-
0.73
No
22 30859 Washer, 5/16" Flat, Plated
2
109
-
0.10
Yes
23 060348 Hex Nut, 5/16 x 24, Plated
1
193
-
0.14
Yes
24 062662 Crankcase Stud Front 1/4 x 20 x 28, 3 5/8"
1
2
-
1.79
Yes
25 NMT2221 Washer, 1/4", .5" O.D., Plated
1
19
-
0.80
Yes
26 26947 Hex Nut 1/4 x 28, Plated
1
198
-
0.10
Yes
27 064157 Crankcase Stud Rear, 3/8 x 16 x 24, 4"
1
4
-
6.68
No
28 016213 Washer, 3/8, Flat, .625" x .390" x .080"
1
30
-
0.89
Yes
29 060029 Hex Nut, 3/8 x 24, Plated
1
55
-
0.22
Yes
30 062685 TimingCover/Crankcase Screw 1/4 x 20 1 1/4
2
4
-
6.77
Yes
31 064188 Plug, Magnetic, Sump Drain, 3/8 x 16
1
7
-
5.65
Yes
32 062624 Washer, Sealing
1
37
-
0.38
No
33 061089 Tachometer Gear
1
2
-
71.69
Yes
34 062670 Screw, 1/4 x 20
2
14
-
4.50
Yes
35 061282 O-Ring, Tach Drive, Pre 75
1
11
-
0.26
No
36 061090 Modified Tachdrive Housing, With Oil Seal
1
2
-
35.88
Yes
37 063056 Gasket, Tachdrive Housing
1
7
-
0.50
No
38 064200 Tube, Crankcase Breather
1
2
-
2.69
No
39 NM16945 Body, Sump Filter
1
2
-
26.25
Yes
40 NM16946 Screen, Sump Filter
1
4
-
7.61
No
41 NM16947 Washer, Flat, Sump Filter
1
4
-
0.40
Yes
42 NM16948 Circlip, Sump Filter
1
3
-
2.41
No
43 064153 Washer, Sealing, Sump Filter
1
6
-
1.67
No
NOT ILL 11-400019 Cylinder Fastener Kit, 850 Commando
1
3
-
56.44
Yes
NOT ILL 11-700003 Crankcase Stud Kit, 72 to 74
1
2
-
28.75
Yes
NOT ILL 067281 Sump Drain Plug with Magnetic Drain Bolt
1
3
-
37.75
Yes

Replacement Parts

STATUS Codes: OO - On Order, SO - Special Order, OP - Out of Print, D - Dropped, BO - Back Ordered, NA - Not Available, U-Used. More Status Information


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Norton Commando, 1973/1974 850cc Listing


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