Neben den vierteiligen Regionalbahnzügen der Reihe 425/435 baute das Konsortium aus DWA (Bombardier), Siemens und Adtranz in den Jahren 2000 und 2001 auch 43 zweiteilige Züge für DB Regio, die im Übrigen den Vierteilern entsprechen. Diese Züge sollten einerseits für den Verkehr auf deutlich schwächer frequentierten Regionalbahnstrecken zur Verfügung stehen, andererseits im Stoßverkehr als Ergänzung einer 4325-Einheit dienen.
Die Züge bestehen aus den nahezu baugleichen Triebköpfen 426.0 (1./2.-Klasse) und 426.5 (2. Klasse), die beide über ein antriebsloses Jakobsdrehgestell miteinander verbunden sind.
Im Gegensatz zu der Reihe 425/435 erfolgte von den 426 keine Nachbeschaffung mehr. Sie sind in Essen (14), Trier (13), München-Steinhausen (8), Plochingen (4) und Frankfurt (Main) (3) beheimatet (Stand: 2008). Entgegen der ursprünglichen Zielsetzung werden oft auch zwei 426 gemeinsam in 425-Einsatzplänen verwendet.
Bereits im April 2004 schieden 426 011/511 nach einem schweren Zugunglück bei Süßen aus dem Bestand.
| Hersteller | Fabriknr. | Baujahr | Typ | urspr. Gattung | Bauart | Fahrzeugnr. | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bombardier | 6/001/1 | 2000 | 426 | Bo'[2]'-el | 426 001-4 | ![]() |
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| Bombardier | 6/002/1 | 2000 | 426 | Bo'[2]'-el | 426 002-2 | ![]() |
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| Bombardier | 6/003/1 | 2000 | 426 | Bo'[2]'-el | 426 003-0 | ![]() |
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| Bombardier | 6/004/1 | 2000 | 426 | Bo'[2]'-el | 426 004-8 | ![]() |
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| Bombardier | 6/005/1 | 2000 | 426 | Bo'[2]'-el | 426 005-5 | ![]() |
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| Bombardier | 6/006/1 | 2000 | 426 | Bo'[2]'-el | 426 006-3 | ![]() |
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| Bombardier | 6/007/1 | 2000 | 426 | Bo'[2]'-el | 426 007-1 | ![]() |
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| Bombardier | 6/008/1 | 2000 | 426 | Bo'[2]'-el | 426 008-9 | ![]() |
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| Bombardier | 6/009/1 | 2000 | 426 | Bo'[2]'-el | 426 009-7 | ![]() |
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| Bombardier | 6/010/1 | 2000 | 426 | Bo'[2]'-el | 426 010-5 | ![]() |
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| Bombardier | 6/011/1 | 2000 | 426 | Bo'[2]'-el | 426 011-3 | ![]() |
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| Bombardier | 6/012/1 | 2000 | 426 | Bo'[2]'-el | 426 012-1 | ![]() |
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| Bombardier | 6/013/1 | 2000 | 426 | Bo'[2]'-el | 426 013-9 | ![]() |
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| Bombardier | 6/014/1 | 2000 | 426 | Bo'[2]'-el | 426 014-7 | ![]() |
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| Bombardier | 6/015/1 | 2000 | 426 | Bo'[2]'-el | 426 015-4 | ![]() |
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| Bombardier | 6/016/1 | 2000 | 426 | Bo'[2]'-el | 426 016-2 | ![]() |
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| Bombardier | 6/017/1 | 2000 | 426 | Bo'[2]'-el | 426 017-0 | ![]() |
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| Bombardier | 6/018/1 | 2000 | 426 | Bo'[2]'-el | 426 018-8 | ![]() |
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| Bombardier | 6/019/1 | 2000 | 426 | Bo'[2]'-el | 426 019-6 | ![]() |
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| Bombardier | 6/020/1 | 2000 | 426 | Bo'[2]'-el | 426 020-4 | ![]() |
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| Bombardier | 6/021/1 | 2001 | 426 | Bo'[2]'-el | 426 021-2 | ![]() |
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| Bombardier | 6/022/1 | 2001 | 426 | Bo'[2]'-el | 426 022-0 | ![]() |
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| Bombardier | 6/023/1 | 2001 | 426 | AB | Bo'[2]'-el | 426 023-8 | ![]() |
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| Bombardier | 6/024/1 | 2001 | 426 | Bo'[2]'-el | 426 024-6 | ![]() |
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| Bombardier | 6/025/1 | 2001 | 426 | Bo'[2]'-el | 426 025-3 | ![]() |
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| Bombardier | 6/026/1 | 2001 | 426 | Bo'[2]'-el | 426 026-1 | ![]() |
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| Bombardier | 6/027/1 | 2001 | 426 | Bo'[2]'-el | 426 027-9 | ![]() |
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| Bombardier | 6/028/1 | 2001 | 426 | Bo'[2]'-el | 426 028-7 | ![]() |
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| Bombardier | 6/029/1 | 2001 | 426 | Bo'[2]'-el | 426 029-5 | ![]() |
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| Bombardier | 6/030/1 | 2001 | 426 | Bo'[2]'-el | 426 030-3 | ![]() |
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| Bombardier | 6/031/1 | 2001 | 426 | Bo'[2]'-el | 426 031-1 | ![]() |
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| Bombardier | 6/032/1 | 2001 | 426 | Bo'[2]'-el | 426 032-9 | ![]() |
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| Bombardier | 6/033/1 | 2001 | 426 | Bo'[2]'-el | 426 033-7 | ![]() |
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| Bombardier | 6/034/1 | 2001 | 426 | AB | Bo'[2]'-el | 426 034-5 | ![]() |
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| Bombardier | 6/035/1 | 2001 | 426 | Bo'[2]'-el | 426 035-2 | ![]() |
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| Bombardier | 6/036/1 | 2001 | 426 | AB | Bo'[2]'-el | 426 036-0 | ![]() |
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| Bombardier | 6/037/1 | 2001 | 426 | Bo'[2]'-el | 426 037-8 | ![]() |
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| Bombardier | 6/038/1 | 2001 | 426 | Bo'[2]'-el | 426 038-6 | ![]() |
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| Bombardier | 6/039/1 | 2001 | 426 | Bo'[2]'-el | 426 039-4 | ![]() |
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| Bombardier | 6/040/1 | 2001 | 426 | Bo'[2]'-el | 426 040-2 | ![]() |
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| Bombardier | 6/041/1 | 2001 | 426 | Bo'[2]'-el | 426 041-0 | ![]() |
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| Bombardier | 6/042/1 | 2001 | 426 | Bo'[2]'-el | 426 042-8 | ![]() |
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| Bombardier | 6/043/1 | 2001 | 426 | Bo'[2]'-el | 426 043-6 | ![]() |
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| Hersteller | Fabriknr. | Baujahr | Typ | urspr. Gattung | Bauart | Fahrzeugnr. | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bombardier | 6/501/2 | 2000 | 426 | Bo'[2]'-el | 426 501-3 | ![]() |
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| Bombardier | 6/502/2 | 2000 | 426 | Bo'[2]'-el | 426 502-1 | ![]() |
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| Bombardier | 6/503/2 | 2000 | 426 | Bo'[2]'-el | 426 503-9 | ![]() |
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| Bombardier | 6/504/2 | 2000 | 426 | Bo'[2]'-el | 426 504-7 | ![]() |
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| Bombardier | 6/505/2 | 2000 | 426 | Bo'[2]'-el | 426 505-4 | ![]() |
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| Bombardier | 6/506/2 | 2000 | 426 | Bo'[2]'-el | 426 506-2 | ![]() |
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| Bombardier | 6/507/2 | 2000 | 426 | Bo'[2]'-el | 426 507-0 | ![]() |
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| Bombardier | 6/508/2 | 2000 | 426 | Bo'[2]'-el | 426 508-8 | ![]() |
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| Bombardier | 6/509/2 | 2000 | 426 | Bo'[2]'-el | 426 509-6 | ![]() |
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| Bombardier | 6/510/2 | 2000 | 426 | Bo'[2]'-el | 426 510-4 | ![]() |
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| Bombardier | 6/511/2 | 2000 | 426 | Bo'[2]'-el | 426 511-2 | ![]() |
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| Bombardier | 6/512/2 | 2000 | 426 | Bo'[2]'-el | 426 512-0 | ![]() |
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| Bombardier | 6/513/2 | 2000 | 426 | Bo'[2]'-el | 426 513-8 | ![]() |
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| Bombardier | 6/514/2 | 2000 | 426 | Bo'[2]'-el | 426 514-6 | ![]() |
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| Bombardier | 6/515/2 | 2000 | 426 | B | Bo'[2]'-el | 426 515-3 | ![]() |
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| Bombardier | 6/516/2 | 2000 | 426 | Bo'[2]'-el | 426 516-1 | ![]() |
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| Bombardier | 6/517/2 | 2000 | 426 | Bo'[2]'-el | 426 517-9 | ![]() |
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| Bombardier | 6/518/2 | 2000 | 426 | Bo'[2]'-el | 426 518-7 | ![]() |
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| Bombardier | 6/519/2 | 2000 | 426 | Bo'[2]'-el | 426 519-5 | ![]() |
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| Bombardier | 6/520/2 | 2000 | 426 | Bo'[2]'-el | 426 520-3 | ![]() |
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| Bombardier | 6/521/2 | 2001 | 426 | Bo'[2]'-el | 426 521-1 | ![]() |
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| Bombardier | 6/522/2 | 2001 | 426 | Bo'[2]'-el | 426 522-9 | ![]() |
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| Bombardier | 6/523/2 | 2001 | 426 | Bo'[2]'-el | 426 523-7 | ![]() |
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| Bombardier | 6/524/2 | 2001 | 426 | Bo'[2]'-el | 426 524-5 | ![]() |
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| Bombardier | 6/525/2 | 2001 | 426 | Bo'[2]'-el | 426 525-2 | ![]() |
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| Bombardier | 6/526/2 | 2001 | 426 | Bo'[2]'-el | 426 526-0 | ![]() |
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| Bombardier | 6/527/2 | 2001 | 426 | Bo'[2]'-el | 426 527-8 | ![]() |
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| Bombardier | 6/528/2 | 2001 | 426 | Bo'[2]'-el | 426 528-6 | ![]() |
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| Bombardier | 6/529/2 | 2001 | 426 | Bo'[2]'-el | 426 529-4 | ![]() |
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| Bombardier | 6/530/2 | 2001 | 426 | Bo'[2]'-el | 426 530-2 | ![]() |
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| Bombardier | 6/531/2 | 2001 | 426 | Bo'[2]'-el | 426 531-0 | ![]() |
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| Bombardier | 6/532/2 | 2001 | 426 | Bo'[2]'-el | 426 532-8 | ![]() |
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| Bombardier | 6/533/2 | 2001 | 426 | Bo'[2]'-el | 426 533-6 | ![]() |
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| Bombardier | 6/534/2 | 2001 | 426 | Bo'[2]'-el | 426 534-4 | ![]() |
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| Bombardier | 6/535/2 | 2001 | 426 | Bo'[2]'-el | 426 535-1 | ![]() |
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| Bombardier | 6/536/2 | 2001 | 426 | B | Bo'[2]'-el | 426 536-9 | ![]() |
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| Bombardier | 6/537/2 | 2001 | 426 | Bo'[2]'-el | 426 537-7 | ![]() |
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| Bombardier | 6/538/2 | 2001 | 426 | Bo'[2]'-el | 426 538-5 | ![]() |
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| Bombardier | 6/539/2 | 2001 | 426 | Bo'[2]'-el | 426 539-3 | ![]() |
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| Bombardier | 6/540/2 | 2001 | 426 | Bo'[2]'-el | 426 540-1 | ![]() |
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| Bombardier | 6/541/2 | 2001 | 426 | Bo'[2]'-el | 426 541-9 | ![]() |
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| Bombardier | 6/542/2 | 2001 | 426 | Bo'[2]'-el | 426 542-7 | ![]() |
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| Bombardier | 6/543/1 | 2001 | 426 | Bo'[2]'-el | 426 543-5 | ![]() |
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