





โ Upgrade your marine maintenance game with precision and durability!
The Slippery Pete Lower Unit Extension Adapters are precision-engineered aluminum fittings designed to fit Volvo Penta and most major outboard motors. With exact 3/8 inch and 10mm sizing, these adapters streamline lower unit servicing and gear oil pumping. Praised for superior quality and durability, they offer a professional-grade solution trusted by boat owners and mechanics alike.
| ASIN | B0BTZ4XXBZ |
| Brand | Slippery Pete |
| Customer Reviews | 4.8 4.8 out of 5 stars (16) |
| Date First Available | January 14, 2020 |
| Exterior | Brushed |
| Item Weight | 0.634 ounces |
| Item model number | 573B256 |
| Manufacturer | Slippery Pete |
| Manufacturer Part Number | 573B256 |
| Material | Aluminum |
| Model | Outboard Motor Lower Unit Adapters |
| Operation Mode | Manual |
| Package Dimensions | 3.23 x 1.93 x 0.71 inches |
| Recommended Uses For Product | Maintaining or servicing outboard boat motors by pumping gear oil into their lower units |
| UPC | 855375008256 |
R**O
Works on Volvo Penta Duo Prop DP-SM
I purchased another brand on Amazon but the quality was lacking and it was priced higher than this two pack of fittings. These Slippery Pete adapters are much better quality in my opinion. Would purchase again if needed but should last numerous years. If you are looking for a tool to remove the front prop check out Marine Tech 3855876 it is a much higher quality tool then the typical one on Amazon that reviews state bend easily and do not last. If you want a tool to hold the props in place while removing and replacing instead of a block of wood take a look at Prop Master Prop Stop. For reference my outdrive is a 1999 Volvo DP-SM and again I have used the tool and it works perfectly. On my outdrive the rear prop nut size is 1-3/16. Also for reference if you have the same drive the Volvo o ring part number you will need when changing the drive fluid are dipstick 3852045, vent plug 3855081, and drain plug 955981. Drain plug is 8mm hex, 3 drive cover screws are 3/8, vent plug is large flat head and dipstick is 9/16. I use Volvo 80w-90 Gear Lube 1141677 and specifications state 2.5 quarts. If you have the same 1999 Volvo 5.7 GSI PWTRCE motor I do here are some more part numbers. Volvo oil filter 3850559 and fuel filter 3852228. I use Volvo full synthetic 10w-40 21681795 and specifications state 6 quarts. Use this additional information at your own risk but I believe all part numbers and specifications are correct. Hopefully others will find the additional info helpful.
R**H
Work well
They work as advertised.
K**N
Good quality
Works good, good quality and function as designed
K**S
Extension
Works great, using extensions to pump oil into lower unit on boat
H**Z
Good quality
Made well
K**O
Works fine
Worked as needed/expected.
G**P
As expected
Work ok no problems.
Trustpilot
1 month ago
2 weeks ago