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Graco Dura-Flo 23:1 6500 cc Motor/580 cc Lower 2-Ball Piston Pump : Low Noise NXT Motor w/ DataTrak / Stainless Steel Lower Material / 3 UHMW w/ 2 PTFE Packing
Graco Dura-Flo 23:1 6500 cc Motor/580 cc Lower 2-Ball Piston Pump : Low Noise NXT Motor w/ DataTrak / Stainless Steel Lower Material / 3 UHMW w/ 2 PTFE Packing
Graco Dura-Flo 23:1 6500 cc Motor/580 cc Lower 2-Ball Piston Pump : Low Noise NXT Motor w/ DataTrak / Stainless Steel Lower Material / 3 UHMW w/ 2 PTFE Packing
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Graco Dura-Flo 23:1 6500 cc Motor/580 cc Lower 2-Ball Piston Pump : Low Noise NXT Motor w/ DataTrak / Stainless Steel Lower Material / 3 UHMW w/ 2 PTFE Packing

Marsoni M251S
Sale price$9555.00
Pay 4 payments of $2388.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Graco Dura-Flo 23:1 6500 cc Motor/580 cc Lower 2-Ball Piston Pump : Low Noise NXT Motor w/ DataTrak / Stainless Steel Lower Material / 3 UHMW w/ 2 PTFE PackingGracos Dura Flo pumps with NXT technology provide uniform and easy to control delivery. Ideal for supply applications, these durable pumps feature an NXT motor and can now achieve an even higher range of pressures without compromising flow. Positive displacement, 2 ball piston design provides uniform and easily controlled delivery High pump pressure and flow performance to handle a broad range of paints and coatings Improved serviceability with fewer
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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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4.8 ★★★★★
Based on 1624 reviews
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Product Reviews
J
Verified Purchase
JNL
Port Orchard, US
★★★★★ 5
The best lower unit gear oil I have used
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
D
Verified Purchase
Debra
San Leandro, US
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Joshua Murray
Carnegie, US
★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
Christopher C.
Grantham, US
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 28, 2025
J
Verified Purchase
Joe H.
Phoenix, US
★★★★★ 5
Works fine in outdrive
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Good gear oil. Purple dye for leak detection
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026

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