Carburetor
Walbro WJ-66
Also: WJ 66
1 associated model record
The Walbro WJ-66 is listed as an aftermarket carburetor in 1 model record across 1 brand. Those records reference OEM part number 1122 120 0611. Associated equipment records include Stihl MS 660. These records do not yet include assigned confidence, source type, and review dates; do not treat the association as confirmed fitment.
Amazon Buying Check
Use the Amazon listing to compare kit contents, seller details, shipping, and OEM compatibility notes before ordering.
Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.
Model Records
| Brand | Model | OEM # | Confidence | Source | Reviewed | Evidence | |
|---|---|---|---|---|---|---|---|
| Stihl | MS 660 | 1122 120 0611 | Confidence not assigned | Evidence source not recorded | Not yet independently reviewed | Walbro WJ-66; 91.1cc engine — do not substitute WJ-67 or WJ-68 | Chainsaw |
What this part is
Walbro WJ-66 is listed here as a carburetor replacement option. Use this page as a fitment cross-reference, then confirm the removed part, model plate, and seller listing details before buying.
OEM numbers it replaces
1122 120 0611
Alternate spellings
WJ-66, WJ 66
Known exclusions
- No specific exclusion is listed in the current data. Still verify serial range, production variant, and removed-part details before ordering.
Dimensions and specs
- No verified dimension field is available for this part. Compare the old part shape, mounting, routing, thread, gap, pitch, gauge, or other part-type-specific dimensions before purchase.
Symptoms that suggest replacement
- Surging
- Won't idle
- Fuel leaking
- Starts only on choke
- No-start after stale fuel storage
How to verify before buying
- Confirm your equipment is one of the compatible models listed above.
- Match the OEM number, stamped part number, or physical spec against the removed part.
- Read the model-specific evidence, confidence, source, reviewed date, dimensions, notes, and exclusions before opening an Amazon listing.
Common wrong-fit mistakes
- Ordering from a broad model-family listing without checking the exact equipment model.
- Ignoring the old OEM number, stamped part number, or physical dimensions.
- Buying a carburetor with the right bolt spacing but different linkage, choke, primer, or fuel inlet orientation.
Related model and part pages
Amazon buying cautions
- Check that the Amazon listing includes the exact part number or verified cross-reference shown here.
- Compare kit contents, gaskets, fuel lines, bulbs, plugs, filters, and dimensions against the removed part before checkout.
- A listing title can mention the right model and still include the wrong revision, accessory, or generic substitute.