--- product_id: 510868705 title: "Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5)" brand: "slippery pete" price: "VT5907" currency: VUV in_stock: false reviews_count: 7 category: "Slippery Pete" url: https://www.desertcart.vu/products/510868705-lower-unit-extension-adapters-fits-volvo-penta-3-8-inch store_origin: VU region: Vanuatu --- # Durable lightweight aluminum Precision 3/8 inch & 10mm fit Universal for major outboard brands Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) **Brand:** slippery pete **Price:** VT5907 **Availability:** ❌ Out of Stock ## Summary > ⚓ Upgrade your marine maintenance game with precision and durability! ## Quick Answers - **What is this?** Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) by slippery pete - **How much does it cost?** VT5907 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/510868705-lower-unit-extension-adapters-fits-volvo-penta-3-8-inch) ## Best For - slippery pete enthusiasts ## Why This Product - Trusted slippery pete brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Exact 3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5 sizing ensures secure connections - • **Trusted by Pros:** Highly rated (4.8/5) and preferred over pricier, lower-quality alternatives - • **Premium Build Quality:** Crafted from robust aluminum for long-lasting performance - • **Effortless Maintenance:** Simplifies gear oil pumping and lower unit servicing with reliable adapters - • **Seamless Compatibility:** Fits Volvo Penta and most major outboard motors effortlessly ## Overview 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. ## Description Lower unit adapters for most major brands outboard motors Review: Works on Volvo Penta Duo Prop DP-SM - I purchased another brand on desertcart 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 desertcart 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. Review: Work well - They work as advertised. ## Features - Lower unit adapters for most major brands outboard motors ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Brand:** Slippery Pete - **Item Weight:** 0.02 Kilograms - **Material:** Aluminum - **Operation Mode:** Manual - **Recommended Uses For Product:** Maintaining or servicing outboard boat motors by pumping gear oil into their lower units ## Images ![Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) - Image 1](https://m.media-amazon.com/images/I/71TBLeyrb1L.jpg) ![Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) - Image 2](https://m.media-amazon.com/images/I/71VA2iqPE9L.jpg) ![Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) - Image 3](https://m.media-amazon.com/images/I/71anwE63-4L.jpg) ![Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) - Image 4](https://m.media-amazon.com/images/I/71jbAMtNYUL.jpg) ![Lower Unit Extension Adapters Fits Volvo Penta (3/8 inch x 3/8 inch and 3/8 inch x 10mm-1.5) - Image 5](https://m.media-amazon.com/images/I/81SbPI8G9GL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works on Volvo Penta Duo Prop DP-SM *by R***O on October 15, 2024* 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. ### ⭐⭐⭐⭐⭐ Work well *by R***H on August 27, 2025* They work as advertised. ### ⭐⭐⭐⭐⭐ Good quality *by K***N on January 1, 2026* Works good, good quality and function as designed --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/510868705-lower-unit-extension-adapters-fits-volvo-penta-3-8-inch](https://www.desertcart.vu/products/510868705-lower-unit-extension-adapters-fits-volvo-penta-3-8-inch) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-05*