SM-WA Stopper Cover Set: Fit and Replacement FAQ
By Zojirushi Online Store | Published: 2026-11-03
Category: Avaliações de Produtos
Answers to common questions about the gray stopper cover set for SM-WA mugs, including what the set includes, how it differs from a stopper set, and when to replace it.
Quick answer
The gray Stopper Cover Set for SM-WA (-HL) mugs replaces the outer cover that fits over the stopper mechanism, but it does not include the stopper set itself. If your stopper leaks or won't stay closed, you likely need the stopper set, not just this cover.
Why the cover and stopper are sold separately
Zojirushi lists the stopper cover and the stopper set as separate parts because they wear differently. The cover is the outer gray piece you touch and slide; the stopper set contains the internal sealing components. A cracked or loose cover affects how the lid feels and stays shut, while a worn stopper set causes leaks. Selling them separately lets you replace only the part that failed.
When to replace the cover instead of the whole lid
If the mug body and lid are otherwise fine and only the gray cover is damaged, this set is the economical fix. Visible cracks, a cover that pops off during use, or a cover that no longer holds the stopper assembly securely are signs to replace it. If the lid itself is cracked or the hinge is broken, a cover alone won't solve the problem.
SM-WA stopper cover FAQ
- What exactly is included in the Stopper Cover Set?
- The set includes the gray stopper cover for SM-WA (-HL) mugs. The stopper set is not included, as stated in the product name. Check your existing stopper set for wear before ordering.
- How do I know if I need the stopper cover or the stopper set?
- Inspect the gray outer cover for cracks, looseness, or difficulty sliding. If the cover looks intact but the mug leaks or the lid won't stay closed, the stopper set is the likely culprit.
- Will this cover fit my SM-WA mug?
- It is designed for SM-WA (-HL) models. Zojirushi does not list compatibility with other SM series models, so check your mug's model number before ordering. The model number is usually printed on the bottom of the mug.
- Is the gray color the only option?
- The supplied product record lists this set as Gray only. No other colors are listed for this part.
- Can I replace just the cover without buying a new lid?
- Yes, if the lid body and hinge are undamaged. The cover set is intended as a direct replacement for the outer cover.
- How do I install the new cover?
- Zojirushi does not include installation instructions with this part. Follow the disassembly steps in your mug's manual, or contact Zojirushi support for guidance.
- Does this part carry any safety warnings?
- The product record includes a California Proposition 65 warning about nickel exposure. Handle the part as directed and visit the listed warning site for details.
Product facts
- Stopper Cover Set (Gray) for SM-WA (-HL) Gray **EXCLUDES STOPPER SET: This is a Stopper Cover Set in Gray for SM-WA (-HL) mugs and explicitly excludes the stopper set. Confirm you already have a working stopper set before ordering, because this set only provides the outer cover.

Stopper Cover Set (Gray) for SM-WA (-HL) Gray **EXCLUDES STOPPER SET
