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D21A-7 S/N 78604-UP (4D94E-1 (Emission) Eng. Installed)  
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D21A-8 S/N 83001-UP (Overseas Version)  
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D21A-8E0 S/N 90001-90209 (INTERIM TIER4)  
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D21P-6A S/N 60001-UP (Power Angle Tilt Dozer)  
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D21P-6 S/N 60001-UP (Straight Tilt Dozer)  
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D21P-7A S/N 78604-UP (4D94E-1 (Emission) Eng. Installed)  
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D21P-8 S/N 83001-UP (Overseas Version)  
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D21P-8E0 S/N 90001-90209 (INTERIM TIER4)  
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D21S-6 S/N 60001-UP (Domestic Version(HYDOROSHIFT Transmission))  
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D21S-7 S/N 61132-UP (4D94E-1 (Emission) Eng. Installed)  
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