★★★★★ 5
Good brand
Size: 300A Fuse Holder
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
Cover, Gray, RSL12UAlso known as: K77 37855 No image is available for this made to order replacement part. This is a replacement Gray Cover. Compatible with LiftMaster Model RSL12U Slide Gate Operators. Check the manual or parts diagram for specific part information before ordering to ensure compatibility. Please allow extended lead time due to manufacturing and shipping for all made to order LiftMaster parts and or service kits. For questions or additional information,
Quick Dispatch:
Your Cover, Gray, RSL12U orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Cover, Gray, RSL12U ships.
Need Help?
Questions about Cover, Gray, RSL12U, sizing, or delivery? We're just an email away.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.0 ★★★★★
Based on 419 reviews
Sort
Product Reviews
★★★★★ 5
Good product
Works as should and shows correct voltage.. double checked with several multi meters. And has been running my 4000, watt amp for almost 6 months now with no problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
★★★★★ 5
Its ok but falls out
Works good but not connected to the unit so it falls out
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Excelente
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 4
Functions. No trigger,need relay for car install
Functions,but will not turn off. No remote wire,just positive & negative. Need relay to install correctly to use on-board fuse. Or connect to remote only to view voltage use. No instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
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