Honda OEM Part 90306-MKN-D50 NUT, HEX. CAP (6MM)
- Product Code: 90306-MKN-D50
$3.34
- Genuine Honda OEM part
- New in original packaging
- Fits the models listed in the fitment chart
- Easy, no-hassle returns
This product is vehicle specific.
Find your vehicle to make sure this part fits before you order.
Ships in 4 to 9 days
Genuine Honda OEM Nut, Hex. Cap (6MM) (part number 90306-MKN-D50) from the Ignition Coil diagram. It fits Honda CB650RAAC, CMX300A, CMX300AAC, CMX300AC, CB650RACAC, VT750CBSAC and 4 more built from 2019 to 2025.
Fits these models
- CB650RAAC: 2019–2023
- CB650RAC: 2019–2020
- CMX300A: 2020–2025
- CMX300AAC: 2020–2024
- CMX300AC: 2020–2022
- CMX300AA: 2023–2024
- CB650RACAC: 2024–2025
- VT750C2BA: 2024
- VT750CBSAC: 2024–2025
- CMX300A3AC: 2025
See the Fitment tab for the full list with model codes.
Need Help Finding the Right Part?
Not sure it fits? Ask before you order — our team will check the part for your machine.
For a faster answer, include:
Year, make and model of your machine
VIN or frame / serial number
OEM part number or a photo of the old part
Find your ride
Check your current ride below to confirm product compatibility.
Honda
2025
- CB650RACAC (25) MOTORCYCLE, THA, VIN# MLHRH165-S5100001 TO MLHRH165-S5199999
- CMX300A (25) MOTORCYCLE, THA, VIN# MLHNC530-S5800001 TO MLHNC530-S5999999
- CMX300A3AC (25) MOTORCYCLE, THA, VIN# MLHNC535-S5800001 TO MLHNC535-S5999999
- VT750CBSAC (25) MOTORCYCLE, JPN, VIN# JH2RC53E-SK100001 TO JH2RC53E-SK199999
2024
- CB650RACAC (24) MOTORCYCLE, THA, VIN# MLHRH165-R5000001 TO MLHRH165-R5099999
- CMX300A (24) REBEL 300 ABS, THA, VIN# MLHNC530-R5700001
- CMX300AA (24) MOTORCYCLE, THA, VIN# MLHNC534-R5100001
- CMX300AAC (24) MOTORCYCLE, THA, VIN# MLHNC535-R5700001
- VT750C2BA (24) MOTORCYCLE, JPN, VIN# JH2RC537-RK400001 TO JH2RC537-RK999999
- VT750CBSAC (24) MOTORCYCLE, JPN, VIN# JH2RC53E-RK000001 TO JH2RC53E-RK999999
2023
2022
- CB650RAAC (22) MOTORCYCLE, THA, VIN# MLHRH025-N5300001 TO MLHRH025-N5399999
- CMX300A (22) REBEL 300 ABS, THA, VIN# MLHNC530-N5500001 TO MLHNC530-N5599999
- CMX300AAC (22) MOTORCYCLE, THA, VIN# MLHNC535-N5500001 TO MLHNC535-N5599999
- CMX300AC (22) MOTORCYCLE, THA, VIN# MLHNC531-N5500001 TO MLHNC531-N5599999
2021
- CB650RAAC (21) MOTORCYCLE, THA, VIN# MLHRH025-M5200001 TO MLHRH025-M5299999
- CMX300A (21) REBEL 300 ABS, THA, VIN# MLHNC530-M5400001 TO MLHNC530-M5499999
- CMX300AAC (21) MOTORCYCLE, THA, VIN# MLHNC535-M5400001 TO MLHNC535-M5499999
- CMX300AC (21) MOTORCYCLE, THA, VIN# MLHNC531-M5400001 TO MLHNC531-M5499999
2020
- Honda CB650RACAC (25) MOTORCYCLE, THA, VIN# MLHRH165-S5100001 TO MLHRH165-S5199999 TURN SIGNAL (CB650RAC)
- Honda CMX300A (25) MOTORCYCLE, THA, VIN# MLHNC530-S5800001 TO MLHNC530-S5999999 IGNITION COIL
- Honda CMX300A3AC (25) MOTORCYCLE, THA, VIN# MLHNC535-S5800001 TO MLHNC535-S5999999 IGNITION COIL
- Honda VT750CBSAC (25) MOTORCYCLE, JPN, VIN# JH2RC53E-SK100001 TO JH2RC53E-SK199999 HEADLIGHT (3)
- Honda CB650RACAC (24) MOTORCYCLE, THA, VIN# MLHRH165-R5000001 TO MLHRH165-R5099999 TURN SIGNAL (CB650RAC)
- Honda CMX300A (24) REBEL 300 ABS, THA, VIN# MLHNC530-R5700001 IGNITION COIL
- Honda CMX300AA (24) MOTORCYCLE, THA, VIN# MLHNC534-R5100001 IGNITION COIL
- Honda CMX300AAC (24) MOTORCYCLE, THA, VIN# MLHNC535-R5700001 IGNITION COIL
- Honda VT750C2BA (24) MOTORCYCLE, JPN, VIN# JH2RC537-RK400001 TO JH2RC537-RK999999 HEADLIGHT (3)
- Honda VT750CBSAC (24) MOTORCYCLE, JPN, VIN# JH2RC53E-RK000001 TO JH2RC53E-RK999999 HEADLIGHT (3)
- Honda CB650RAAC (23) MOTORCYCLE, THA, VIN# MLHRH025-P5400001 TURN SIGNAL (1)
- Honda CMX300A (23) REBEL 300 ABS, THA, VIN# MLHNC530-P5600001 TO MLHNC530-P5699999 IGNITION COIL
- Honda CMX300AA (23) MOTORCYCLE, THA, VIN# MLHNC534-P5000001 TO MLHNC534-P5099999 IGNITION COIL
- Honda CMX300AAC (23) MOTORCYCLE, THA, VIN# MLHNC535-P5600001 TO MLHNC535-P5699999 IGNITION COIL
- Honda CB650RAAC (22) MOTORCYCLE, THA, VIN# MLHRH025-N5300001 TO MLHRH025-N5399999 TURN SIGNAL (1)
- Honda CMX300A (22) REBEL 300 ABS, THA, VIN# MLHNC530-N5500001 TO MLHNC530-N5599999 IGNITION COIL
- Honda CMX300AAC (22) MOTORCYCLE, THA, VIN# MLHNC535-N5500001 TO MLHNC535-N5599999 IGNITION COIL
- Honda CMX300AC (22) MOTORCYCLE, THA, VIN# MLHNC531-N5500001 TO MLHNC531-N5599999 IGNITION COIL
- Honda CB650RAAC (21) MOTORCYCLE, THA, VIN# MLHRH025-M5200001 TO MLHRH025-M5299999 TURN SIGNAL (1)
- Honda CMX300A (21) REBEL 300 ABS, THA, VIN# MLHNC530-M5400001 TO MLHNC530-M5499999 IGNITION COIL
- Honda CMX300AAC (21) MOTORCYCLE, THA, VIN# MLHNC535-M5400001 TO MLHNC535-M5499999 IGNITION COIL
- Honda CMX300AC (21) MOTORCYCLE, THA, VIN# MLHNC531-M5400001 TO MLHNC531-M5499999 IGNITION COIL
- Honda CB650RAAC (20) MOTORCYCLE, THA, VIN# MLHRH025-L5100001 TURN SIGNAL
- Honda CB650RAC (20) MOTORCYCLE, THA, VIN# MLHRH021-L5100001 TURN SIGNAL
- Honda CMX300A (20) MOTORCYCLE, THA, VIN# MLHNC530-L5300001 IGNITION COIL (2)
- Honda CMX300AAC (20) MOTORCYCLE, THA, VIN# MLHNC535-L5300001 IGNITION COIL (2)
- Honda CMX300AC (20) MOTORCYCLE, THA, VIN# MLHNC531-L5300001 IGNITION COIL (2)
- Honda CB650RAAC (19) MOTORCYCLE, THA, VIN# MLHRH025-K5000001 TO MLHRH025-K5099999 TURN SIGNAL
- Honda CB650RAC (19) MOTORCYCLE, THA, VIN# MLHRH021-K5000001 TO MLHRH021-K5099999 TURN SIGNAL
Part Details
| Brand | Honda |
| Sku | 90306-MKN-D50 |
| Name | NUT, HEX. CAP (6MM) |
Free Shipping on Orders Over $99
Free ground shipping on US orders over $99, with tracking. Delivery time is shown before you pay, so you know when it arrives.
Support From People Who Ride
Not sure about size or fit? Ask us before you order. Our team rides too and will help you pick what suits your bike.
Genuine OEM & Trusted Brands
OEM parts for Honda, Yamaha, Kawasaki, Can-Am, Polaris and more, plus gear from makers riders trust. No no-name imports.
Parts That Fit Your Machine
Enter your machine’s type, year, make and model, and we’ll show only the parts and gear that fit it.
