AISIN SEIKI AW450-43LE DIRECT CLUTCH DRUM
The Aisin Seiki AW450-43LE direct clutch drum (often referenced by part number 141551E or similar) fits 1998–2007 commercial vehicles equipped with the Aisin Warner 450-43LE 4-speed automatic transmission. These vehicles are primarily Isuzu NPR, GMC W3500/Forward, Chevrolet W3500/Forward, Mitsubishi Fuso FE, and Nissan UD 1200/1300/1400, often using I4 diesel engines.
Key Vehicle Fitments (1998–2007):
- Isuzu NPR (1998–2007)
- GMC Forward / W3500 (1998–2007)
- Chevrolet Forward / W3500 (1998–2007)
- Mitsubishi Fuso FE (1998–2004+)
- Nissan UD 1200/1300/1400 (1998–2004+)
- Hino Trucks 145 (2005–2007)
- Toyota (Dyna, Mega Cruiser)
Technical Specs for the Direct Drum:
- Years: 1998-Up (1998–2007)
- Transmission Type: AW450-43LE (Aisin Seiki / Aisin-Warner)
- Component Details: Usually stamped steel, 20-tooth steels (sometimes listed as 10), and a 38-tooth sun gear.
This transmission is common in light-to-medium-duty cab-over trucks. Some 1998 models may be transition years, but the drum generally covers 1998–2007, with many applications specifically listing 1999–2007.
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