Cummins L10 Cylinder Head | 3055721 | Loaded | New

New aftermarket DCW cylinder head for the Cummins L10, casting 3055721, also replacing castings 3025086, 3033227, 3084652, 3893525, and 3893852. The head is loaded: it's supplied assembled with valves and springs, with valve guides, valve seats, and injector cups already installed. It's made from high-strength, alloyed cast iron designed for heavy-duty diesel applications. Reuse your existing injectors or supply a replacement set.

Key Features:

• Loaded head, assembled with valves and springs
• Valve guides, valve seats, and injector cups installed
• High-strength, alloyed cast iron designed for heavy-duty diesel applications
• Replaces Cummins L10 castings 3055721, 3025086, 3033227, 3084652, 3893525, and 3893852
• DCW quality control: casting inspection, material hardness testing, dimensional analysis, and 100% cleaning and pressure testing

Specifications:

• Base part number: 3055721 (casting)
• Replaces castings: 3025086, 3033227, 3084652, 3893525, 3893852
• Condition: New Aftermarket
• Component type: Cylinder head, loaded
• Valve configuration: Valves and springs installed
• Included: Valve guides, valve seats, injector cups
• Material: High-strength, alloyed cast iron
• Engine: Cummins L10

Compatibility / Fitment:

Fits Cummins L10 engines with cylinder head casting 3055721, 3025086, 3033227, 3084652, 3893525, or 3893852, including bus applications such as the Axess, E-Z Rider II, RE Series commercial bus, R Series school bus, Saf-T-Liner HDX school bus, Vision, and XHF. Check the casting number on your existing head before ordering.

Hard fitment gate — casting number: Match the casting number on your existing head to one of the six listed above. The later Cummins M11 and ISM use different cylinder heads.

Injectors: Injectors are not included. Reuse your existing injectors or supply a replacement set.

Other versions available: A new bare head (guides, seats, and injector cups installed, without valves and springs), and remanufactured loaded and bare heads on core exchange, are also available.

Cross-References / Interchange:

• Casting numbers replaced: 3055721, 3025086, 3033227, 3084652, 3893525, 3893852
• Cummins part numbers: 2863994, 2863997, 2863999, 2864002, 3029057, 3034790, 3055723, 3056094, 3056095, 3401521, 3401523, 3401526, 3401527, 3801289, 3820657, 3883486, 3883508, 3892305, 3892751, 3892752, 3892756, 3892757, 3892758, 3896287, 3896288, 3896290, 3896291, 4003968, 4003970, 4003975, 4952819

Conclusion:

A new loaded DCW cylinder head for the Cummins L10, casting 3055721 and five related castings, in high-strength alloyed cast iron, with valves, springs, guides, seats, and injector cups installed. Match your casting number before ordering.