Product Overview
The N425910 Clamshell Set is a precision-engineered direct-fit housing replacement for 20V brushless impact drivers built on the DCF887 platform. This complete clamshell set contains both the left and right housing halves – the outer shell that protects the motor, gear train, impact mechanism, and electronic controls from dust, moisture, and physical damage[reference:7].
Designed for professional repair technicians and equipment maintenance specialists, this housing set restores structural integrity to tools that have suffered drop damage, cracked clamshells, broken screw bosses, or worn battery rails. The high-impact engineering-grade plastic construction with reinforced corners and screw bosses delivers the durability required for daily jobsite use[reference:8].
The N425910 is the active OEM part number for this clamshell set, referenced in OEM parts diagrams as “CLAMSHELL SET”[reference:9][reference:10]. It is compatible with multiple DCF887 variants including Type 1, Type 3, Type 10, and regional specifications such as B, M2, B3, and AR[reference:11].
💡 Pro Tip – The Screw Transfer Protocol: The clamshell set includes the housing halves only – screws must be transferred from the original housing[reference:12]. Before disassembly, lay out the screws in the exact pattern they occupy in the housing. The DCF887 uses multiple screw lengths; mixing them up during reassembly can result in stripped bosses or a housing that won’t close properly. Use a magnetic parts tray and photograph the screw layout before removal. Always remove the battery before beginning disassembly.
Diagnostic & Fitment – When to Replace
Specification Comparison
| Specification | Worn / Generic Aftermarket | FixPartHub Precision Replacement ✅ |
|---|---|---|
| Material Quality | Low-grade plastic – brittle, prone to cracking | High-impact engineering plastic – jobsite durability[reference:15] |
| Screw Boss Integrity | Weak bosses – strip easily during reassembly | Reinforced bosses – OEM-spec durability |
| Battery Rail Geometry | Inconsistent – poor battery retention | OEM-spec rail – positive battery engagement |
| Fitment | Vague or incorrect compatibility claims | DCF887 / B / M2 / B3 / AR – direct-fit[reference:16] |
| Part Number Status | Generic cross-reference – uncertain quality | Active OEM N425910 – factory specification[reference:17] |
Teardown & Replacement Workflow
Compatibility – Cross-Reference & OEM Part Numbers
Diagnostic Q&A
❓ Q: My DCF887 was dropped and the housing cracked – do I need to replace the entire clamshell set?
A: Yes. The N425910 is a complete clamshell set containing both housing halves[reference:21]. Cracks in one half compromise the structural integrity of the entire tool – the housing must be replaced as a set to ensure proper sealing and screw alignment. Replace both halves even if only one is visibly damaged.
❓ Q: What’s the difference between N425910 and N413423 – which one do I need?
A: N425910 is the clamshell set (housing halves)[reference:22]. N413423 is a different assembly – a housing assembly that may include additional components[reference:23]. This listing supplies the N425910 clamshell set, which is the direct replacement for the outer shell. Verify your tool’s parts diagram to confirm which part number matches your specific model.
❓ Q: Does the N425910 clamshell set include the screws?
A: No. The clamshell set includes the housing halves only[reference:24]. The eight housing screws (OEM part number 682211-00) must be transferred from your original housing or purchased separately[reference:25][reference:26]. If the original screws are damaged or stripped, replace them with the correct OEM screw set.
❓ Q: Will this housing fit my DCF887 Type 10 model?
A: Yes. N425910 is the OEM clamshell set for DCF887 Type 10, Type 1, and Type 3 models[reference:27][reference:28]. The housing is compatible across all DCF887 variants including B, M2, B3, and AR regional specifications[reference:29].
Safety Notes
- 🔴 Always remove the battery pack before beginning any disassembly or housing replacement procedure.
- 🔧 Document screw positions – the DCF887 uses multiple screw lengths[reference:30]. Mixing them up can strip bosses or prevent proper closure. Use a magnetic parts tray and photograph the layout before disassembly.
- 🧤 Avoid over-torquing – housing screws should be snug but not over-tightened. Over-torquing can strip the reinforced screw bosses in the new housing.
- 📐 Verify switch alignment before final closure – the forward/reverse actuator and trigger must sit correctly in their housing channels[reference:31].
- ✅ Test function before full reassembly – insert battery and verify the tool operates correctly in all three speed settings before reinstalling the final screws.
A: The N425910 is a complete clamshell set (CLAMSHELL SET) containing both the left and right housing halves for 20V brushless impact drivers. It is the outer shell that protects the motor, gear train, impact mechanism, and electronic controls.
A: Yes. N425910 is compatible with DCF887, DCF887B, DCF887M2, DCF887B-B3, DCF887B-AR, and multiple regional variants. This includes Type 1, Type 3, and Type 10 specifications.
A: No. The clamshell set includes the housing halves only. The eight housing screws (OEM part number 682211-00) must be transferred from your original housing or purchased separately
A: Common indicators include visible cracks or splits in the housing, broken screw bosses that prevent the housing from closing securely, worn battery rails that cause poor battery retention, or damage from drops that compromises tool structural integrity.
