


RANSBURG A11080-01 Purge Block Only Assembly (English)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
RANSBURG A11080-01 Purge Block Only Assembly (English)RANSBURG A11080 01 PURGE BLOCK,ENGLISH Item# Part# Description QTY 1 78944 00 Assembly, Check Valve 2 2 77620 00 Assembly, Valve Seat or Plug 2 3 77620 00 Assembly, Valve or Plug 2 4 78947 00 Seal 2 5 78945 00 Plug, Check Valve 2 6 77516 04 Collet, 5 32" 4 7 A10825 00 Red Locking Clip, 1 4 OD Tube 1 8 79001 30 O Ring, Solvent Proof 4 9 79001 06 O Ring, Solvent Proof 3 10 79001 05 O Ring, Solvent Proof 1 11 79001 34 O Ring, Solvent Proof 2 12 77762 05
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4.5 ★★★★★
Based on 1800 reviews
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Product Reviews
★★★★★ 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
★★★★★ 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
★★★★★ 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
★★★★★ 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
★★★★★ 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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