Mercury lower unit drain plug size. This tool popped it right out using a ratchet. Description. 9 hp engines to pump in lower unit lubrication. NEW VERADO & NON-VERADO V6 & V8 The yellow ones are silicone and do not require being "crushed" to form a seal. Senior Member. 9 Pro Kicker lower unit drain plug size. However, the proper seating of the lower unit drain plug depends on the seal signific The thread on the Mercury (except for the Verado series) drain/fill screws are 3/8-16 (0. With our low price guarantee, Amazon. Soalmost every year, sadly. 99. Sierra part number 18-2244. Joined Sep 19, 2003 Messages 12,532. Buy 15 Pcs Lower Unit Drain Plug Seal Gasket, 3/8-16 Gearcase Lube Oil Drain Screw Washer Replacement Compatible with Mercury Outboard Evinude Mercruiser Outdrive Re: 85HP Force Lower Unit Drain Plug My 87 125hp has the same issue. This Drain Screw is for use with the following: for Mercruiser I, R, MR, Alpha One, TR, TRS & all O/Bs with 3/8-16 non I have a 2006 Merc 4 stroke EFI. Fits most Mercury RE: Merc lower unit gear case drain plugs. 25" long). a drain plug screw, a drain plug seal : Batteries Included? No : Brand Quicksilver : Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 79953Q04 is used with 3/8 - 16 drain/fill hole screw on all MerCruiser Old, stripped lower unit drain plugs beg to be replaced! Keep water out of your lower unit by assuring that the drain plug is in good condition and that the gasket is intact. Thread will be available in the future to fit all applications. 5% I have trouble loosening my lower unit drain screw whenever I procrastinate winterizing my boat. So: I had to drill it. Compatibility: These lower unit drain and fill screws gaskets are compatible with most Mercury/Maruner outboards and all mercruiser models, including Mercury Marine 12-19183 & 12-191832 12-191833, Mallory Marine 9-60101 & 9-60102, Sierra Marine 18-2945 & 18-2244, SEI Marine 98-102-09, OBR Red Rhino MR-103, GLM 31170. This stainless steel drain plug fits most Mercury lower units. Prepare to Drain: First, you need to ensure that your outboard is in a vertical and upright position. 5 18-1236 Drain Screw for Johnson/Evinrude Outboard Couldn’t get the LU drain plug out of my Honda. This plug is used in all the Mariner and Mercury outboards except the Verado series. Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435. On my engine (2009 DF90A) they are vastly different. 4. Their model SGD155BR screwdriver is perfect for those tight gearcase drain screws found on outboard motors and stern drive units. 2 18-4249 E-Tec Lower Unit Drain Screw With Magnet 18-0755 Crankcase Drain Gasket 18-0826 Drain Screw Gasket for Yamaha Outboards 18-8331-9 Drain Plug Gasket for Suzuki Outboard Motors, Qty. Then you will need to locate and identify both the upper and lower Fill and This stainless steel drain plug fits most Mercury lower units. 00 for each seal, And only six Buy HeuroFosh 8M0058389 Marine Magnetic Gearcase Drain Plug for Mercury Outboard and MerCruiser Sterndrive Lower Unit Gear Lube Drain Fill Hole Screw Seal 2 PCS 67892A06 18-2375: Oil Drain Plugs - Amazon. These lower units, such as the Mercury Racing Sportmaster are reserved for boats that exceed 85-90MPH. However the lower one is definitely smaller, Re: Drain Plug Lower Unit O-Ring & Gasket Confusion Some plugs use gaskets, some require an o-ring. R. 0 out of 5 stars. Go to your Merc dealer and they will have adapter that threads onto your pump and into the gear case. 50. Re: Stuck and corroded drain plugs in lower unit Been there with my drain plug except I had the skill to round out the hex. pbrown New member. I think they do it to minimize on the number of parts. Check out as guest. I purchased one of these tools as soon as my Snap-on rep received them from the factory and I was The dimensions of the 12 Pcs Drain Screw Gasket Marine Lower Unit Drain Plug Seal Compatible with Mercury Marine 12-19183-3/12-191833, 12-19183Q02 12-19183K02 18-2244 are 3 x 3 x 0. I have 3 outboards, a 2007 Merc 75 hp, and 2 Johnsons,,,, a late 70's 25 hp, and an 80's 50 hp,, all 3 use the flat style lower unit drain plug gaskets,,, can I just buy 'one' package, of high quality flat gasket that will work for all 3 motors,,,, or do I need 3 packages of gaskets,,,, Lower unit drain plug threads . 1. Product information . com FREE Links to the items I use in this video along with more info located below - check it! Purchasing your items from my links helps me do what I do and create [Archive] What tool to use on lower unit drain plug? Motors and Props. • What is the weight of the 12 Pcs Drain Screw Gasket Marine Lower Unit Drain Plug Seal Compatible with Mercury Marine 12-19183-3/12-191833, 12-19183Q02 Buy SEI Marine Products-Compatible with Mercury Verado Drain Plug 10-880717A01 135 150 175 200 225 250 300 HP 4 Stroke: Compressors - Amazon. Price and other details may vary based on product size and color. 8M0007119 Oil Drain Plug Seal/Washer - Mercury. Must use this seal to properly seat the drain/fill hole Mercury Lower Unit Drain Plug Gasket. Mechanics recommend changing oil plug gaskets or O-rings when changing 9. 99 $ 8. ikia Guest. com FREE DELIVERY possible on eligible purchases Re: Drain Plug Size? Well, you have three choices: The right way, the wromg way, and my way! LOL If the screw is definitely inside the lower unit: If the drain plug was located on Lower Unit drain/fill plug flathead size. That is indeed the size of the upper (vent) screw. Technical Details. Fits most Mercury lower I have a 1977 Mercury 175 HP. Mercury Marine's HD lower unit is used on the majority of Mercury Verado outboards and is one of the strongest/reliable lower units on the water. CDN GT Member. 8 out of 5 stars. This plate is held on with the 4 water pump screws and 3 other screws. My plug is part # 8288181 according to mercury but they could not Find Drain Screw Kit - 79953Q04 here. Quantity. Oil drain plug seal/washer 8M0007119 is for 25-30hp EFI Mercury 4-stroke outboards (serial No. Applications: Mercury Outboard Motors. 9 Pro Kicker this last weekend. Jul 9, 2008 Does Anyone know what size the hole is and what the thread pattern is on a '89 40 hp Merc? } Reply. 48 x 0. 99 Additional Details:Thread Size: 3/8" or 9. Gabriel Roy is studying Naval Architecture and Marine Engineering and working as an activities guide in lower unit drain plug size 03-08-2014, 01:56 PM. 9 HP outboard motor. Check the seals in the water pump lower plate. 45 x 3. 10 Packs Drain Plug Seal 26830749 Gearcase Drain Plug Gaskets Mercury Lower Unit Washers for Mercury Mariner Outboard and MerCruiser Sterndrives Lower Unit Screw Washers 26 About this item . Dec 29, 2009 lower unit drain plug fibre washers They are made of nylon, so should be replaced after each service. Fits Honda, Yamaha, and Mercury as far as I know. Mine, '04 115HP, used the plastic PVS Performance Vent System Plugs; Propeller Wrenches; Propeller Covers; Prop Seals & Vent Control Ring; Mercury Seal | Gear Lube Drain Screw | 6 per pkg | 830749 | 8M0204693; Amazon. Allow all of the KITS FOR 200, 225, 250, 275 & 300HP ENGINES. This lower unit features a different, more robust profile with 8 low water pickups on the sides hello,can any one tell us the size fibre washers that are needed for the lower unit,drain and level screws,,thanks tony . FILTERS; ANODES; DRAIN PLUGS AND SEALS; WATER PUMP KITS; POWER TRIM; AIRDAM CAPS; ELECTRICAL; PROP NUT KITS & FLO-TORQ HUB KITS; EVERYTHING ELSE; LOWER UNIT VENT AND DRAIN PLUG 953683. I also bought a fresh can of engine Re: three plugs in lower unit It would help to know the year of this motor. Gaskets Only (Drain plugs not included) Sold as a pair. 25 metric drain/fill hole screw on all Mercury and Mariner outboards made in Japan. is NOT 20 Packs 12 19183 Lower Unit Drain Plug Gaskets for Mercury Mariner Outboard and MerCruiser Sterndrives Drain Screw Seals 12-19183Q02 18-2244. VERADO 300 HOUR MAINTENANCE KITS. Luckily enough, an easy out removed the body of the plug. com FREE DELIVERY possible on eligible purchases 10-880717A01 and fits 135-300 HP Mercury Verado 4 stroke outboard lower units from 2006-current. 2 PCS 79953Q04 Marine Lower Unit Oil Drain Plug Screw and Anybody know the size that a 115 hp Mercury 4 stroke oil drain plug is? My Yamaha needs a 14mm socket to remove the plug but not sure if a Mercury is the same size? I'm Re: lower unit drain plug gasket?? The kits come with both the O-Ring and plastic washer. It is very important to use the seal to make sure the drain/fill hole screw seats properly to retain the gear lube in the gear case and keep damage causing water out of the gear case. I will replace the plug. Are all the Mercury LU drain plugs the same thread Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 8M0058389 is used with 3/8 - 16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Package Dimensions 4. 5 inches. ca: Automotive. The engine oil gasket is metal while the lower unit drain/vent gasket is a rubber Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 8M0083059 is used with 8x1. Mercury Lower unit drain plug. The lower unit drain plug constantly wants to thread in crooked. 0R05170 and higher), 35-60hp EFI Mercury 4-stroke outboards (serial No. Jul 10, 2008 #2 Recently Snap-on, a leader in professional hand tools, introduced a uniquely designed wide-blade screwdriver for marine use. Offering discount prices on OEM Mercury Marine parts for over 50 years. I decided to change the lower unit oil in my 150 and 9. I want to install a quick oil drain system, they go by plug size not by engine. Dang drain plug is in so tight I cant's shift it with either metric or imperial allen keys - and I didn't Everything I have seen online says that the drain/fill plug for the lower unit is 8mm. 04 lb Brand Sierra MFG Part No. Make offer. $10. Must use this seal to properly seat the drain/fill hole Features. Get a 3/8-16 screw (or a Mercury drain/fill screw) and see if it goes into a 18-2244 Drain Screw for Mercury and Mercruiser. michawi2 #1 Has Mercury come out with an allen head lower unit drain plug yet instead of the standard flat blade? Reply. Thread starter michawi2; Start date Oct 23, 2018; M. 5 x 0. Direct replacement for Mercury Marine 10-79953Q2 and 10-79953A2. Drain Plug 22-67892A06 Now supersedes all other drain plug that will now require you to use the new yellow seals, Part number 26-830749 at a list price of $3. If the threads go all the way to the bottom of the head, it uses a 18-2244 Drain Plug Screw & Gasket Kit 18-2244 Drain Plug Screw & Gasket Kit Fits for Mercury/Mercruiser #1/MR/R/Alpha/Alpha I Gen II Upper & Lower Units 【Replaces Buy Marine Gearcase Drain Plug Screw Kit 22-8M0058389 8M0058389 Replacement for Mercury and Mariner outboard: Oil Drain Plugs - Amazon. KITS FOR 350 AND 400HP ENGINES. Any help? Dave . I. Add to Wish List. Lower drain plugs, Lower Unit Oil Drain Plug Gearcase Screw & Gasket for Mercury40 50 60 70 75 90115HP/Mercruiser Bravo/Alpha1Gen2, Replaces 10-79953Q2 10-79953A2 18-2244 22420 10-79953Q04 Compatible with Mercury & Yamaha Lower Unit Drain - Includes Drain Quicksilver 79953Q04 Lower Unit Gear Lube Drain and Fill Hole Screw and Seal : Mercury Marine: Amazon. Add to cart. Sign in to check out. Amazon's Choice: Lower Drain Plugs, Lower Unit Oil Drain Plug Re: Repairing stripped threads in lower unit drain hole I worked on an Evinrude 40hp once that someone had used an impact driver on the drain screw and hammered it so Buy Mercury Marine/Mercruiser OEM Gearcase Drain Plug Seal Washer TWO PACK 26-830749: Seals - Amazon. I don't want to over torque them Mercury MerCruiser Sterndrives & Engines . ezeke Supreme Mariner. Key Features. not nessasarily. I picked up new Mercury blue drain plug gaskets but I can't find any information on the proper tightness/torque on the drain plugs. 704 ounces : Lower drain plugs, Lower Unit Oil Drain Plug Gearcase Screw & Gasket for Mercury40 50 60 70 75 90115HP/Mercruiser Bravo/Alpha1Gen2, Replaces 10-79953Q2 10-79953A2 18-2244 22420 10-79953Q04 Package Dimensions : They come with composite washers for a very good seal to the lower unit. What size is the plug? Guess it must be stainless. Shop On Amazon Order Now. Murray. Think it cost me like $2. Drain plugs include an O-ring or gasket Torque spec for lower unit drain plugs? Thread starter CDN GT; Start date Apr 23, 2021; Apr 23, 2021 #1 C. Steel plug into an aluminum lower unit could damage Drain the Gear Lube Oil: Now remove the top drain plug; this will release the vacuum that exists and allow the oil to drain freely from the Mercury lower unit. There is only 1 vent plug, and the drain plug, located on Explore a wide selection of quality outdoor gear at Bass Pro Shops, the trusted source for Mercury Marine Quicksilver Gear Case Drain Plug Screw Kit . Oct 23, 2018 #2 You may find that this part from Johnson / Evinrude / BRP product will fit the Are the lower unit drain plug gaskets the same size as the oil drain plug gasket? They look smaller. racerone Gold Medal Contributor. com: mercury drain plug. They fit a Mercury 9. $8. I now Price and other details may vary based on product size and color. Thread starter wellfairfisher; Start date Apr 25, 2021; Toggle sidebar. Lower drain plugs, Lower Unit Oil Drain Plug Gearcase Screw & Gasket for Mercury40 50 60 70 75 90115HP/Mercruiser Bravo/Alpha1Gen2, Replaces 10-79953Q2 18-2945-9 Drain Screw Gasket for Mercury/Mariner Outboard Motors, Qty. Keep water out of your lower unit by assuring that the drain plug is in good condition and that the gasket is intact. I'm guessing that the slotted heads are on purpose to prevent over-tightening. Walleye Message Central > Boats, Motors, Electronics and Trailers > Motors and Props > What tool to 1. New Mercruiser drain and fill plug gaskets. Add to watchlist. Overall Pick. On older Inlines there is a plastic flushing plug. I got the 150 done and used one of the hand Used with 3/8 - 16 drain and fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. " 9. Amazon's Choice: Overall Pick Products highlighted as 'Overall Pick' are: 20 Packs 12 19183 Lower Unit Drain Plug Gaskets for Mercury Mariner Outboard and MerCruiser Sterndrives Drain Screw Seals 12-19183Q02 18-2244. I bought a set last year, tired of stripping out the lower unit drain Lower Unit Drain Plug Gearcase Screw Mercury 18-2244 10-79953A2 10-79953Q2. It’s called a K&L Supply Drain Plug Removal/Installation Tool SKU - 35-69001 This stainless steel drain plug fits most Mercury lower units. Mechanics recommend changing oil plug gaskets or O-rings when changing lower unit oil. I got the 150 done and used one of the hand pumps to fill the gearcase. Fits most Mercury lower units; Made of stainless steel; Sierra 18-2244; Specs Unit Weight 0. E. 50) Quantity: Decrease Quantity: Increase Quantity: video gallery ×. 79 inches : Manufacturer Part Number Also fit lower unit fill plug 1991 mercury 25 hp outboard! Read more. $5. Fits flush to the plug, and the flat protrusion is perfectly sized for the slotted plug. 55 inches : Item Weight : 0. Beats the hell out of a flathead. Mercury Lower Unit Drain Plug Size & All The Details; Gabriel Roy. Report. That being said, whenever I install drain plugs, no matter which gasket i'm using, I tighten the plug I picked up new Mercury blue drain plug gaskets but I can't find any information on the proper tightness/torque on the drain plugs. × lower unit plug/drain seal 191833 Rating Required Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Replacement gaskets for the Mercury's lower unit drain and vent plugs. I don't want to over torque them as not to Used with 3/8 - 16 drain and fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. 3/8 – 16 is the lower unit drain plug size. 1C050252 and higher). Helpful. 39 x 2. Function: Seals Mercury drain and vent screws. com: Mercury Marine Parts Lower Unit. Part Number: 8M0007119. Tags: None. com FREE DELIVERY possible on eligible purchases Package Dimensions : 3. Join Date: Jan 2017; Posts: 1022; Share Tweet #2. Thread starter pbrown; Start date Jul 9, 2008; P. 08-23-2021, 08:59 AM. Hey Guys I'm trying to find out what size the drain plug is, so that a can get a air fitting for a pressure test. 5mm - 16For: MerCruiser I,R,MR,Alpha One,TR,TRS & all O/Bs with 3/8-16 non-magnetic gear lube fill or vent screwsUse With:18-2945: Drain Screw Gasket18-2945-9: Drain Screw Gasket (Priced Per Pkg of 2)18-29451-9: Drain Screw Gasket (Priced Per Pkg of 50)Cross ReferencesChrysler/Force/US Marine10-7995310 MERCURY VERADO. Mechanics recommend changing oil plug gaskets or O-rings when changing I have a hand pump with a plastic tube connected to a threaded end that I have used on my Johnson and Evinrude 9.