670-21A Sections
Tecumseh 670-21A Schematic
670-21A Parts by Section
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Rod assembly – Part Number: 310235
Rod assembly
Fix Number FIX16985439
  No Longer Available
1
SCREW – Part Number: 650633A
SCREW
Fix Number FIX18430230
$6.25
  Special Order
2
Bearing & Liner Set, Needle – Part Number: 530142
Bearing & Liner Set, Needle
Fix Number FIX9005313
$21.95
  Special Order
2A
Cartridge Bearing – Part Number: 530104A
Cartridge Bearing
Fix Number FIX9005409
$18.06
  Special Order
2B
PISTON & PIN – Part Number: 310283B
PISTON & PIN
Fix Number FIX18429100
$35.80
  Special Order
3
Pin, Piston – Part Number: 310178
Pin, Piston
Fix Number FIX8945134
$10.52
  In Stock
4
Ring Set – Part Number: 310289A
Ring Set
Fix Number FIX9275496
$16.92
  In Stock
5
Ring-Retaning – Part Number: 310296
Ring-Retaning
Fix Number FIX8950552
$6.25
  In Stock
6
Crankshaft – Part Number: 290426
Crankshaft
Fix Number FIX16984714
  No Longer Available
7
Cylinder (Incl. 9 thru 12) – Part Number: 250246
Cylinder (Incl. 9 thru 12)
Fix Number FIX8938215
  No Longer Available
8
Bearing, Needle – Part Number: 530143A
Bearing, Needle
Fix Number FIX9005411
$21.80
  Special Order
9
Seal, Crankshaft – Part Number: 510145
Seal, Crankshaft
Fix Number FIX8997962
$6.25
  In Stock
10
Retainer, Crankshaft Seal – Part Number: 510143
Retainer, Crankshaft Seal
Fix Number FIX8997050
$6.25
  Special Order
11
Spring, Crankshaft Seal Retain – Part Number: 510142
Spring, Crankshaft Seal Retain
Fix Number FIX8996718
$6.25
  Special Order
12
Cylinder Head Gasket – Part Number: 510274A
Cylinder Head Gasket
Fix Number FIX8997583
$6.25
  Special Order
13
Cylndr head – Part Number: 250211A
Cylndr head
Fix Number FIX16983954
  No Longer Available
14
Screw, Torx T-30, 1/4-20x3/4&# – Part Number: 650477
Screw, Torx T-30, 1/4-20x3/4&#
Fix Number FIX9293044
$6.25
  Special Order
15
DISCONTINUED – Part Number: 610120
DISCONTINUED
Fix Number FIX9358052
  No Longer Available
16
Washer, Flat – Part Number: 650469
Washer, Flat
Fix Number FIX9053799
$6.25
  Special Order
17
Trimmer Spark Plug Cover – Part Number: 610118
Trimmer Spark Plug Cover
Fix Number FIX9052756
$7.25
  In Stock
18
Muffler – Part Number: 390276B
Muffler
Fix Number FIX9277797
$13.68
  In Stock
19
Gasket, Cover – Part Number: 510270A
Gasket, Cover
Fix Number FIX9003302
$6.25
  Special Order
20
Plate Assembly, Reed – Part Number: 470139A
Plate Assembly, Reed
Fix Number FIX8981933
  No Longer Available
21
Stud, Carburetor – Part Number: 650564
Stud, Carburetor
Fix Number FIX9054999
  No Longer Available
22
Screw, Torx T-25, 10-24x1/2" – Part Number: 650579
Screw, Torx T-25, 10-24x1/2"
Fix Number FIX9293052
$6.25
  Special Order
23
Carburetor Gasket – Part Number: 510110A
Carburetor Gasket
Fix Number FIX8997946
$6.25
  In Stock
24
Nut – Part Number: 29752
Nut
Fix Number FIX8948167
$2.99
  In Stock
25
* Gasket, Housing base – Part Number: 510268A
* Gasket, Housing base
Fix Number FIX9283892
$5.15
  Special Order
26
Housing Base (Incl. 28, 29, 30 & 31) – Part Number: 350368
Housing Base (Incl. 28, 29, 30 & 31)
Fix Number FIX8956211
  No Longer Available
27
Bearing-Cartridge – Part Number: 530105
Bearing-Cartridge
Fix Number FIX9005695
$13.72
  In Stock
28
Seal, Crankshaft – Part Number: 510105
Seal, Crankshaft
Fix Number FIX8996980
  No Longer Available
29
Retainer, Crankshaft Seal – Part Number: 510106A
Retainer, Crankshaft Seal
Fix Number FIX9003259
$6.25
  Special Order
30
Spring, Crankshaft Seal Retainer – Part Number: 510109A
Spring, Crankshaft Seal Retainer
Fix Number FIX9283828
$6.25
  Special Order
31
Washer – Part Number: 570422
Washer
Fix Number FIX9289758
$6.25
  Special Order
32
Lever, Control – Part Number: 570421
Lever, Control
Fix Number FIX9034256
$32.06
  Special Order
33
Decal, H.P. (3 H.P.) – Part Number: 28250
Decal, H.P. (3 H.P.)
Fix Number FIX8945714
  No Longer Available
34
Lever, Adjusting – Part Number: 570415
Lever, Adjusting
Fix Number FIX9041205
$6.25
  Special Order
35
Compression Spring – Part Number: 31342
Compression Spring
Fix Number FIX8951040
$6.42
  In Stock
36
Screw, Torx T-10, 5-40x7/16&#3 – Part Number: 651029
Screw, Torx T-10, 5-40x7/16
Fix Number FIX9293102
$6.25
  Special Order
37
Washer – Part Number: 650583
Washer
Fix Number FIX9056559
$6.25
  Special Order
38
Screw, Pan Flex Hd. – Part Number: 650544
Screw, Pan Flex Hd.
Fix Number FIX9055230
$6.25
  Special Order
39
Washer, Insulating – Part Number: 570153
Washer, Insulating
Fix Number FIX9031915
  No Longer Available
40
Shorting Clip – Part Number: 570398
Shorting Clip
Fix Number FIX9033108
  No Longer Available
41
Washer, Insulating – Part Number: 610637
Washer, Insulating
Fix Number FIX9291708
  No Longer Available
42
Spacer – Part Number: 570412
Spacer
Fix Number FIX9034255
$6.25
  Special Order
43
DISCONTINUED – Part Number: 650645
DISCONTINUED
Fix Number FIX9381418
  No Longer Available
44
Screw Assembly – Part Number: 650561
Screw Assembly
Fix Number FIX9293051
$6.25
  In Stock
45
Spring, Governor – Part Number: 570417
Spring, Governor
Fix Number FIX9031921
$6.25
  Special Order
46
Element, Air filter – Part Number: 29961
Element, Air filter
Fix Number FIX8942885
$6.25
  Special Order
47
Air Cleaner – Part Number: 450215
Air Cleaner
Fix Number FIX8972415
$8.40
  In Stock
47A
Screen, Air cleaner – Part Number: 450205
Screen, Air cleaner
Fix Number FIX9279648
$2.99
  Special Order
47B
Body, Air filter – Part Number: 32301
Body, Air filter
Fix Number FIX8951377
  No Longer Available
48
Body, Air filter – Part Number: 450232
Body, Air filter
Fix Number FIX8977810
$11.30
  Special Order
48A
Air Filter – Part Number: 29962
Air Filter
Fix Number FIX8946031
$6.32
  Special Order
49
Screw – Part Number: 650431
Screw
Fix Number FIX9056549
$6.25
  Special Order
50
Air Cleaner Cover – Part Number: 450216
Air Cleaner Cover
Fix Number FIX8972416
$18.20
  Special Order
51
Gasket-cleaner, Air – Part Number: 35815
Gasket-cleaner, Air
Fix Number FIX8957299
$6.25
  In Stock
52
Washer, Flat – Part Number: 650295
Washer, Flat
Fix Number FIX9053456
  No Longer Available
53
Screw, 1/4-20 x 7/8" – Part Number: 650435
Screw, 1/4-20 x 7/8"
Fix Number FIX9056550
  No Longer Available
54
Key, Flywheel – Part Number: 650496
Key, Flywheel
Fix Number FIX9054157
$6.25
  Special Order
55
Hub&Screen – Part Number: 31284
Hub&Screen
Fix Number FIX8945182
$19.07
  Special Order
56
Washer, Flat – Part Number: 29544
Washer, Flat
Fix Number FIX8942459
  No Longer Available
57
Flywheel Nut – Part Number: 650390
Flywheel Nut
Fix Number FIX9062723
$6.25
  Special Order
58
Washer – Part Number: 650168
Washer
Fix Number FIX9056539
$6.25
  Special Order
59
Wire, Cut off – Part Number: 610691
Wire, Cut off
Fix Number FIX9046904
$6.25
  Special Order
60
Screw, Pan hd. Sems, 1/4-28 x 1/2 – Part Number: 30513
Screw, Pan hd. Sems, 1/4-28 x 1/2
Fix Number FIX8947063
$4.13
  Special Order
61
DISCONTINUED – Part Number: 35344
DISCONTINUED
Fix Number FIX9357061
$6.25
  Special Order
62
Decal, Instruction – Part Number: 550195
Decal, Instruction
Fix Number FIX9030502
  No Longer Available
63
Screw-Hex, Hd. – Part Number: 650356
Screw-Hex, Hd.
Fix Number FIX9062721
$6.25
  Special Order
65
Fuel Tank – Part Number: 410273
Fuel Tank
Fix Number FIX8967499
$58.91
  In Stock
66
Fuel Cap – Part Number: 410285
Fuel Cap
Fix Number FIX8967403
$22.76
  Special Order
67
Line, Fuel (Braided) (8-1/4") – Part Number: 29774
Line, Fuel (Braided) (8-1/4")
Fix Number FIX8945438
$2.99
  Special Order
68
Trimmer Primer Assembly – Part Number: 570629B
Trimmer Primer Assembly
Fix Number FIX9289766
$12.08
  In Stock
69
Trimmer Primer Assembly – Part Number: 570629B
Trimmer Primer Assembly
Fix Number FIX9289766
$12.08
  In Stock
70
Trimmer Primer Assembly – Part Number: 570629B
Trimmer Primer Assembly
Fix Number FIX9289766
$12.08
  In Stock
71
Engine Primer Line – Part Number: 32180C
Engine Primer Line
Fix Number FIX9275983
$6.38
  Special Order
72
Adapter Plate – Part Number: 330171A
Adapter Plate
Fix Number FIX8953947
$16.56
  Special Order
73
Exhaust Gasket – Part Number: 510257A
Exhaust Gasket
Fix Number FIX9283887
$6.25
  In Stock
74
Screw, 5/16-18 x 5/8" Use as require d – Part Number: 650603
Screw, 5/16-18 x 5/8" Use as require d
Fix Number FIX9053464
$6.25
  Special Order
76
Trimmer Primer Assembly – Part Number: 570629B
Trimmer Primer Assembly
Fix Number FIX9289766
$12.08
  In Stock
77
Magneto, Tecumseh – Part Number: 610794
Magneto, Tecumseh
Fix Number FIX9046020
  No Longer Available
78
Carburetor – Part Number: 631998
Carburetor
Fix Number FIX9052663
  No Longer Available
79
DISCONTINUED – Part Number: 590378
DISCONTINUED
Fix Number FIX9377419
  No Longer Available
80
Gasket set – Part Number: 510294
Gasket set
Fix Number FIX16989398
  No Longer Available
81
Owner's manual – Part Number: 692666
Owner's manual
Fix Number FIX16993552
  No Longer Available
NI