Overview
The HPI Racing Clutch Nut 1/4-28 x 8.5mm in Black is a genuine OEM drivetrain hardware piece that secures the clutch assembly to the engine crankshaft on HPI nitro vehicles. Manufactured to factory specifications and finished in black, this nut delivers the precise threading and clamping force needed to keep your clutch hardware safely fastened under high-rpm power.
The 1/4-28 imperial thread matches HPI's standard nitro engine specification, making this the correct factory replacement when servicing or rebuilding your clutch.
Key Features
- Genuine HPI Racing OEM clutch nut
- 1/4-28 imperial thread x 8.5mm
- Black finish
- Steel construction
- Direct factory fit – no modification required
Performance Benefits
- Reliably retains clutch assembly under high rpm
- Precision threading prevents cross-threading on installation
- Black finish helps resist corrosion from heat and fuel residue
- OEM-correct replacement for clutch service
Usage Notes
- Tighten to manufacturer-specified torque
- Use a small amount of threadlock for high-rpm applications
- Always replace if threads show damage or rounding
- Match the correct flywheel and clutch shoe combination per HPI's manual
Technical Specs
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Type: Clutch Nut
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Thread: 1/4-28
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Length: 8.5mm
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Finish: Black
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Manufacturer: HPI Racing
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Part Number: 160403
Fitment
- HPI nitro vehicles using a 1/4-28 clutch nut specification
- Common applications across HPI Savage, Nitro RS4, Nitro MT, and similar 1/8 and 1/10 nitro platforms
- Verify part number against your vehicle's manual prior to ordering
What's Included
- (1) HPI Racing 1/4-28 x 8.5mm Clutch Nut (Black)
Summary
Keep your nitro drivetrain tight and reliable with this genuine HPI 1/4-28 Clutch Nut – the correct OEM replacement for any clutch service or rebuild.
