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 EnginesHorizontal Crankshaft Engines