Old Britts
Valve Gear
Group 3

exploded view
Exploded View

To order electronically: click on the Order button for the part you want to place in your shopping cart. Alternative Parts: If there is a Yes in the Alt column, click on the Yes to see the alternative parts.

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 02/12/21

Ref No. Part No. Description Qty. Req. Qty. on Hand Status Price Alt
1
064125
Valve Guide, Exhaust, 850cc STD
2
6
-
20.75
Yes
1A 063527 Valve Guide, Exhaust, 650/750 STD
2
6
-
19.21
Yes
2 065027 Valve Guide, Inlet, 850cc STD
2
5
-
20.75
Yes
2A 062725 Valve Guide, Inlet, 650/750 STD
2
8
-
19.21
Yes
3 011111 Circlip, Valve Guide, (850 only)
4
12
-
0.40
No
4 063282 Exhaust Valve, 750/850
2
3
-
34.70
Yes
5 064034 Inlet Valve, 750/850
2
1
-
35.89
Yes
6 061399 Cup, Valve Spring, Lower, 850 Only
4
14
-
11.30
No
7 NM23392 Washer, Heat Insulating
4
17
-
1.05
No
8 062726 Oilseal, Inlet Valve, Special with Spring
2
12
-
2.65
Yes
9 NM22839 Valve Spring Set, 4 inner 4 outer, Andover
4
3
-
39.75
Yes
10 NM22838 Valve Spring Set, 4 inner 4 outer, Andover
4
3
-
39.75
Yes
11 NMT186 Collar, Valve Spring, Upper
4
11
-
20.77
Yes
12 NMT187 Split Collet, Valve, Pair
4
16
-
4.78
Yes
13 NM25515 Pushrod, Intake, Commando, 8.15"
2
2
-
19.45
Yes
14 NM25516 Pushrod, Exhaust, Commando, 7.3"
NA
0
NA
15.50
Yes
15 NM22771 * Tappets, Matched Pair
1
3
-
400.00
Yes
16 NM22772 * Tappets, Matched Pair
1
3
-
400.00
Yes
17 063092 Plate, Tappet Retaining
2
4
-
15.85
Yes
18 NMT2143 Screw, 10 x 32, Tappet Retain
4
8
-
5.60
Yes
19 062473 Rocker Arm, LH Inlet (068)
1
2
-
247.00
Yes
20 062471 Rocker Arm, RH Intake (067)
1
2
-
247.00
Yes
21 062474 Rocker Arm, LH Exhaust (070)
1
2
-
247.00
Yes
22 062472 Rocker Arm, RH Exhaust (069)
1
2
-
202.34
Yes
23 NMT2074 Adjuster, Valve
4
8
-
11.75
Yes
24 NMT232 Nut, Valve Adjuster
4
22
-
3.50
Yes
25 NM25350 Spindle, Rocker
4
7
-
18.60
No
26 NM18102 Washer, Thrust, Rockers
NA
0
NA
0.95
Yes
27 NM18103 Washer, Spring, Rockers
4
12
-
1.95
Yes
28 NMT2083 Gasket, Rocker Plate, Outer
4
27
-
0.15
No
29 NMT2240 Gasket, Rocker Plate, Inner
4
29
-
0.15
No
30 NMT2238 Plate, Rockershaft, Inner
4
16
-
1.45
Yes
31 NMT2239 Plate, Rocker Cover
4
19
-
1.95
Yes
32 063124 Hex Head Bolt, 1/4 x 20, 5/8", Plated
8
55
-
0.31
Yes
33 063129 Washer, Copper
8
33
-
0.30
Yes

Replacement Parts

NOTE: * Only supplied in pairs.

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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