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AR21039 Mini-Matic Unloader w/ Injector
AR21039 Mini-Matic Unloader w/ Injector
AR21039 Mini-Matic Unloader w/ Injector
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AR21039 Mini-Matic Unloader w/ Injector

Marsoni M251S
Sale price$143.55
Pay 4 payments of $35.89 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
AR21039 Mini-Matic Unloader w/ InjectorFEATURES: Unloader features bolt on design with internal bypass system Adjustable pressure releases pressure in pump head when in bypass, protecting from over pressurization Eliminates bypass hose and fittings Garden hose filter inlet Molded plastic adjusting knob is designed for user comfort Brass body with stainless steel plunger and spring SPECIFICATIONS: Adjustable built in 2. 0 injector 3 GPM maximum 2600 PSI maximum 160 F. maximum 1 2" FPT inlet
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Your AR21039 Mini-Matic Unloader w/ Injector orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2023 reviews
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Product Reviews
R
Verified Purchase
Ryan
Carnegie, US
★★★★★ 5
Durable Solenoid for Starter and Trim
Number of Items: 1
Installed easily and works perfectly. Engages the trim and starter reliably every time. Solid, durable, and great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
C
Verified Purchase
Cuz
Bozeman, US
★★★★★ 5
Works Great
Number of Items: 1
I have a 1988 mercury/mariner 75 hp motor. My motor would not go down. Purchased this solenoid to replace the old one. Fit perfect and fixed my problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
G
Verified Purchase
Gary Miller
Dallas, US
★★★★★ 5
Just the part I needed
Number of Items: 1
It was a perfect match to the one I needed to replace. And the shipping was lightning fast
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
steven clark
Phoenix, US
★★★★★ 5
Works great
Number of Items: 1
Works great easy fix for my Merc. Trim motor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
L
Verified Purchase
Lori
Grantham, US
★★★★★ 5
Worked well
Number of Items: 1
Worked well for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025

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