Overview
The HPI Racing 1/4-28 x 8.5mm Black Pilot Nut is a genuine factory replacement nut that secures the flywheel and clutch assembly to the engine crankshaft on the HPI Firestorm 10T and Savage X. The 1/4-28 imperial thread is the standard for many .15-.21 nitro engines.
A damaged or stretched pilot nut causes flywheel slippage and unsafe operation — fresh OEM nut restores reliable engagement.
Key Features
- Genuine HPI Racing replacement nut
- 1/4-28 imperial thread
- 8.5mm head
- Black finish
- Direct fit for Firestorm 10T and Savage X
Performance Benefits
- Secure flywheel-to-crankshaft retention
- Long-lasting steel construction
- Clean black appearance
Usage Notes
- Apply thread-lock at install
- Torque to factory spec
- Inspect crankshaft threads for damage
Technical Specs
- Type: Pilot Nut
- Thread: 1/4-28
- Length: 8.5mm
- Color: Black
- Manufacturer: HPI Racing
What's Included
- (1) HPI Racing Black Pilot Nut
Fitment
- HPI Firestorm 10T 1/10 scale nitro stadium truck
- HPI Savage X 1/8 scale nitro monster truck
Summary
Restore reliable flywheel retention with this genuine HPI 1/4-28 x 8.5mm black pilot nut.
