Honda CB750 CB400 GL1000 GL1100 Valve Stem Seal - Replaces Honda OEM 12209-MB9-003
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Description
Honda CB750 CB400 GL1000 GL1100 Valve Stem Seal - Replaces Honda OEM 12209-MB9-003. This valve-stem seal controls oil at the valve guide while allowing the valve stem to move freely.
Replace hardened or worn seals when the head is apart or when oil smoke points to oil passing the valve guides.
Product Details
| Replaces Honda OEM | 12209-MB9-003 |
|---|---|
| Part type | valve-stem seal |
| Sold | individually |
Fitment / Compatibility
Fits Honda:
- CB400T (1978-79)
- CM400 (1979-82)
- CB750A (1976-78)
- CB750F (1976-78)
- CB750K (1971-78)
- GL1000 (1975-79)
- CB400A (1978)
- CX500 (1978-79)
- CX500T (1982)
- CX650 (1983)
- GL500 (1981-82)
- GL500I (1981-82)
- GL650I (1983)
- VT750C (1983)
- GL1100 (1980-81)
- GL1100I (1980-81)
Before Ordering
- Cross-check OEM/reference 12209-MB9-003 against the original part
- Confirm valve-stem diameter, guide OD, seal height, spring clearance, and intake/exhaust application
Fitment
Custom / Universal part
Check compatibility before ordering
Universal does not mean it fits every motorcycle. Compare the dimensions, mounting or connection details, and specifications in the description with your setup. Make sure this is the correct part for your intended use.
Selecting your bike does not confirm fitment for this item.
View product detailsCheck the listed model, year and any fitment notes in the description.
| Make | Model | Years |
|---|
No matching models in this list.
Based on our catalog. Check product notes before ordering.
Shipping + Returns
Shipping & delivery
In-stock orders typically ship the same or next business day. Ground delivery is estimated at 3–8 business days to the USA and 2–6 business days within Canada after shipping.
Free ground shipping: USA orders of $50 USD or more; Canadian orders over $50 CAD.
View shipping options and details
Returns
Eligible unused, unaltered parts can be returned within 60 days of delivery, with original packaging. No restocking fees. Electrical parts are excluded.
