50
1519 thru 1521
1
1522
12
1523
1
1524
2
1525A
16
1527
3
1528,A,B
1
1529, A, B
3
1530, A, B
1
1531
3
1534A
17
1535B
3
1536
12
1537
1
1538 thru 1541A
12
1542
5
1543 thru 1546
1
1547
3
1549
3
1550A
15
1551
16
1552
20
1553
16
1554,A
3
1555 and 1556
16
1557 thru 1560
15
1561
19
1562 thru 1571
23
1572
2
1573
3
1574 thru 1577
23
1575
24
1578
25
1581 thru 1582A
23
1583 thru 1599A
26
1600 thru 1617
28
1618 thru 1619
43
1620
30
1622 thru 1623A
42
1624 thru 1642
35
MODEL PAGE NO.
AV520
61
AV600
61
AH600
61
HSK600
61
TVS600
61
SPECIFICATIONS
ENGINE TYPE NUMBER AND LETTER REFERENCE
Tecumseh has used two different methods of identifying 2 cycle engines.
The first method was used until the mid 1980's using the base model number with a type number. The type
number was used to identify variations for the OEM's specific needs.
The second method was put in place to standardize 2 cycle and 4 cycle engine identification. The type
number has now become the specification number, which is preceded by the engine model. Example: AV520
Tecumseh type numbers are stamped into the blower housing, or are located on a nameplate or tag on the
engine.
Model and Specification numbers are either stamped into the blower housing, or located on a decal on the
side of the blower housing.
Column
TYPE NO.
No.
Vertical Crankshaft Engines
638 thru 638-100
6
639 thru 639-13A
13
640-02 thru 640-06B 21
640-07 thru 640-21-A
22
640-23
36
641 thru 641-14
11
642-01,A 9A
642-02, A thru G
9A
642-02E, F
9B
642-03, A, B
9A
642-04, A, B, C
9A
642-05, A, B
9A
642-06, A
9A
642-07, A, B
9A
642-07C
9B
642-08
9B
642-08A, B, C
9A
642-09 thru 642-14
9A
642-13 thru 14C
9B
642-15 thru 642-23
9B
642-24 thru 642-33
9C
642-35
34
643-01, A, 03, A
10A
643-03B, C
10B
643-04, 05A
10A
643-05B
10B
643-13,14
10A
643-14A, B, C
10B
643-15
10A
643-15A thru 643-32
10B
643-32A
32
643-33
33
643-34
33
643-35,A,B
37
650
14
653-01 thru 653-05
31
653-07 thru 653-10
38
660-11 thru 660-38
18
660-39,A
39
660-40
40
661-01 thru 661-29
29
661-30 thru 661-45
41
662-02
42
662-623A
42
670-01 thru 670-109
8
Horizontal Crankshaft Engines
1398 thru 1399
11
1400
11
1401 thru 1401F
16
1401G, H
17
1401J
27
1402 and 1402B
7
1425
7
1430A
7
1432, A
7
1440, A, B, C, D
1
1442, A, B,
7
1444, A
7
1448 thru 1450
16
1450A, A, B, C, D, E
16
1450F
17
1454, A
1
1459
7
1460, A, B ,C, D, E, F
1
1462
1
1464, A, B
12
1465
1
1466, A
16
1471, A, B
5
1472, A, B, C
12
1473, A, B
1
1474
12
1475 thru 1476
1
1479
7
1482, A
16
1483
16
1484, A, B, C, D
3
1485
7
1486
4
1488, A, B, C, D
1
1489 thru 1490B
3
1491
12
1493, A
7
1494 and 1495A
2
1496
7
1497
1
1498
5
1499
16
1500
5
1501,A, B, C, D, E,F,G
1
1503, A, B, C, D
12
1506
16
1506B
17
1507
16
1508
7
1509
3
1510
12
1511
3
1512, A
2
1513
12
1515 thru 1516C
3
1517
5
1518
4
Column
TYPE NO.
No.
Column
TYPE NO.
No.
Horizontal Crankshaft Engines
Horizontal Crankshaft Engines
Summary of Contents for AH520 -
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