


Aeromotive Belt Drive Pump EFI Regulator
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Aeromotive Belt Drive Pump EFI RegulatorUltra High Flow EFI Regulator, adjustable from 40 100 PSI. Engineered for our Belt Drive and Hex Drive Fuel Pumps, the Belt Drive EFI Regulator is suitable for engines making up to 4,000 HP on gasoline and is compatible with gasoline and methanol. Perfect for any mechanically driven EFI fuel pump developing over 200 GPH at EFI pressure. Base pressure adjustable from 40 100 PSI. References Vacuum Boost on a 1: 1 ratio. Includes two boost line adapters,
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- Fast: 2-3 business days
- Express: 1-2 business days
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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.
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4.1 ★★★★★
Based on 1415 reviews
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Product Reviews
★★★★★ 5
Great bottle opener and looks cool too
Size: One Size, Style: Bottle Opener
Love this opener. Matches with all the other screwdrivers in my tool box and have it ready to whip open a beer whenever needed. Slips into the pocket to carry with you as well. Solid tool and I gave a couple buddies one as a gift. These will see many years of beer opening super fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025
★★★★★ 5
Funny yet good bottle opener
Size: One Size, Style: Bottle Opener
Nice rubber grip. It would be better if the metal part was one inch longer, but still very functional.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
★★★★★ 5
The right tool for the job.
Size: One Size, Style: Bottle Opener, Size: One Size, Style: Bottle Opener
This is the tool you want. It is exceptionally functional, well made (made in the USA, if that matters to you), and beautiful in the way that quality tools are. The thing that really sets this tool apart is that it correctly balances form vs. function: a heavy duty build (as is the point when buying a bottle opener built by a tool company) without its use as a bottle opener (as is the point when buying ANY bottle opener) being negatively impacted by said build. I also bought the Craftsman bottle cap wrench, which, in my opinion, is hugely successful as feeling like a heavy duty tool and something of a failure as a bottle opener. It's so large and heavy, it has equal mass to the bottle you're opening. Imagine your buddy who has had one too many wielding a 12 oz. steel wrench over your tile floor, countertop, toes, etc. and you'll get the idea.
Lastly, the engraving and materials on this Klein tool are so attractive I had to build it a custom wall mount instead of hiding it away in a drawer or tool chest. I will be buying a second for the office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2016
★★★★★ 5
Solid Quality
Size: One Size, Style: Bottle Opener, Size: One Size, Style: Bottle Opener
Solid quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Crack them bottles with Klein
Size: One Size, Style: Bottle Opener
Use regular for bottled coke. Comes in handy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 12, 2025
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