This is a Genuine OEM GM Battery Distribution Engine Compartment Fuse Block Assembly for the Chevrolet Silverado 2500HD, Silverado 3500HD, Suburban, and GMC Sierra 2500HD and Sierra 3500HD. It manages power distribution from the battery to critical engine compartment circuits and is a direct-fit replacement for the original unit.
This part is Genuine OEM GM, ensuring factory-correct fit, form, and function. It applies to CK2 (half-ton/1500-series) and CK3 (three-quarter-ton and heavy-duty) platform vehicles equipped with the Dual Alternator configuration only — vehicles without a dual alternator setup require a different fuse block assembly. This part superseded the earlier GM fuse block and carries a 1-year warranty.
| Year Range | Make | Model | Trim/Engine | Notes/Options |
|---|---|---|---|---|
| 2014-2019 | Chevrolet | Silverado 2500HD | 6.0L V8; 6.6L Duramax V8 Diesel | CK3 Series; Dual Alternator equipped only |
| 2014-2019 | Chevrolet | Silverado 3500HD | 6.0L V8; 6.6L Duramax V8 Diesel | CK3 Series; Dual Alternator equipped only |
| 2014-2019 | GMC | Sierra 2500HD | 6.0L V8; 6.6L Duramax V8 Diesel | CK3 Series; Dual Alternator equipped only |
| 2014-2019 | GMC | Sierra 3500HD | 6.0L V8; 6.6L Duramax V8 Diesel | CK3 Series; Dual Alternator equipped only |
| 2015-2019 | Chevrolet | Suburban | 5.3L V8; 6.2L V8 | CK2 Series; Dual Alternator equipped only |
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