The Royal Enfield 140189 Steering Stem Washer is a genuine steering-system washer fitted with the steering stem lock nut in the front steering/headlamp casing assembly.
Royal Enfield parts data identifies 140189 as “LOCK NUT WASHER”, while parts catalogues also describe it as “STEERING STEM WASHER” or “STEERING STEM LOCK NUT WASHER.” The current replacement number is 140189/3.
This washer is installed as part of the steering stem fastening arrangement and helps provide the correct interface under the steering stem lock nut. It is suitable for replacement when the original washer is damaged, worn, deformed or missing.
Key Features
- Genuine Royal Enfield spare part
- Original Part Number: 140189
- Current replacement: 140189/3
- Description: Steering Stem Washer
- Also known as Steering Stem Lock Nut Washer
- Used with steering stem lock nut
- OEM-specification component
- Suitable for steering system repair
- Original-style fit and dimensions
- Essential small component of the steering stem assembly
Compatibility
- Compatible with selected Royal Enfield steering stem assemblies
- Used across various classic Royal Enfield models depending on steering/headlamp casing configuration
- Part Number: 140189
- Replacement Part Number: 140189/3
Parts catalogues show 140189 in steering stem/headlamp casing assemblies, including Bullet and other classic Royal Enfield configurations.
Important: Royal Enfield has superseded 140189 with 140189/3 in current parts listings. Match the existing part number, steering stem and lock-nut arrangement before ordering.
Application
Royal Enfield Steering Stem / Headlamp Casing Assembly – Lock Nut Washer
Package Includes
- 1 × Steering Stem Washer / Lock Nut Washer
- Original Part No. 140189
- Current replacement No. 140189/3










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