Beginner — under 30 min
Description
This specific part number is MUSB-A4, also identified as 25A28129. The product is available with an approximate 1-2 week lead time. The unit weight is listed as 1.0000 lbs.
Fitment
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Specifications
| Brand | BUSSMANN |
| Part Number | B03L MUSB-A4 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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