Best Lower Unit Drain Plug Gasket in 2022 [*Top Picks*]

2023 Reviews Scanned

• Bestseller #1

  12 Pcs Drain Screw Gasket Marine Lower Unit Seal Replacement for Mercury Marine 12-19183-3 12-19183Q02 12-19183K02 18-2244 (780)

  Aftermarket Seal Gasket, Blue Color, Includes 12 Pcs Provide Good Tightness, Solve Leaking Problem Offering Good Durability & long lasting Service Replacement for 18-2945 Sierra Marine,98-102-09 SEI Marine,9-60101 9-60102 Mallory Marine,31170 GLM,MR-103 OBR Red Rhino,12-19183 12-191832 Mercury Marine Used With The 3/8-16 Drain/Fill Screw Found On All Mercruiser And Most Mercury/Mariner Outboards, Except Those Of Japanese Origin

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• Bestseller #1

  (24-Pack) TonGass Exact Replacement Mercury Marine Drain Screw Gaskets (Blue) - Lower Unit Seals for 3/8”-16 Drain Fill Screws - Fits Most Non-Japanese Mercury/Mariner Outboards and All Mercruiser (433)

  TONGASS EXACT REPLACEMENT MERCURY MARINE DRAIN SCREW GASKETS - Solve lower unit leaking problems with our exact replacement lower unit screw gaskets. This pack is a replacement for part numbers ‎12191833, 1219183Q02, and 1219183K02. Each pack contains 24 pieces of blue Mercury Marine drain fill gaskets LOWER UNIT SEALS FOR 3/8”-16 DRAIN FILL SCREWS - Designed for use on Mercury Marine drain and fill screws. This model specifically fits on 3/8”-16 screws, providing a good, tight, and reliable seal that lasts longer than other lower unit seals in the market FITS MOST NON-JAPANESE MERCURY/MARINER OUTBOARDS AND ALL MERCRUISER MODELS - Several compatible models include Sierra Marine 18-2945, SEI Marine 98-102-09, Mallory Marine 9-60101 and 9-60102, GLM 31170, OBR Red Rhino MR-103, and Mercury Marine 12-19183 and 12-191832. Double check your model’s parts diagrams to avoid compatibility errors. BLUE AFTERMERKET SEAL GASKETS - These are OEM-quality blue fiber gaskets designed for marine use. They are interchangeable with yellow and red fiber gaskets required in older part numbers. Our aftermarket Mercury Mariner gaskets have better durability and are more cost-effective than other gaskets in the market. RELIABLE AFTERMARKET REPLACEMENT PARTS BY TONGASS - Our line of aftermarket replacement parts meets and even exceeds OEM specifications for quality and durability. You can count on our reliable aftermarket replacement lower unit gaskets to provide an excellent seal for longer.

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• Bestseller #1

  10 PCS 90430-08021-00 90430-08003 Outboard Lower Unit Oil Drain Gasket Replacement for Yamaha Outboard 4 stroke (780)

  Used on lower unit drain and oil level screws Aftermarket Fiber Seal Washer Gasket, Including 10 Pcs Reference Part Numbers 90430-08020-00 604-45342-00-00 90430-08801-00 90430-08003-00 The items work for most models of 4-stroke yamaha outboard High Quality Material, Long Working Life

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• Bestseller #1

  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 (125)

  12 Pcs Aftermarket Seal Gasket; Keep oil in and water out with the tight seal created by these gaskets; Made of High-quality Material with Asbestos Free; Provide Good Tightness, and Solve Leaking problems; Compatible with 18-2945 Sierra Marine; 98-102-09 SEI Marine; 9-60101; 9-60102 Mallory Marine; 31170 GLM; MR-103 OBR Red Rhino; 12-19183 12-191832 Mercury Marine; Used With The 3/8-16 Drain/Fill Screw Found On All Mercruiser And Most Mercury/Mariner Outboards When reinstalling the oil drain screw, please double-check to make sure the gasket is seated, or water could seep into the transmission and cause damage to the transmission

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• Bestseller #1

  20 Pcs Lower Unit Drain Plug Seal Gasket, Gearcase Lube Drain Screw Washer Replacement for Mercury Outboard Evinude Mercruiser Outdrive Tohatsu 12-19183-3 12-19183Q02 12-19183K02 18-2244 (62)

  Perfect For The Marine Environment: Our marine drain screw gaskets are the ideal solution for outdrive drain, vent plug / vent screw and oil level use. Compatible with most lower units and seawater pumps. Keep oil in and water out with the tight seal created by these gaskets. Made of high quality material with asbestos free, prevent gear oil leaking. For use on the 3/8-16 drain/fill screw holes in outboard and stern drive gearcases. Compatible with inboard / outboard motors made by a variety of manufacturers. Used With The 3/8-16 Drain/Fill Screw Found On All Mercruiser And Most Mercury/Mariner Tohatsu Mallory Johnson Evinrude Outboards. Replacement for 18-2945 Sierra Marine,98-102-09 SEI Marine,9-60101 9-60102 Mallory Marine,31170 GLM,MR-103 OBR Red Rhino,12-19183 12-191832 Mercury Marine. Always double check to make sure the washer has been secured when reinstalling the drain screw. Water could infiltrate the gearcase without it and cause catastrophic damage to the gearcase.

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• Bestseller #1

  REPLACEMENTKITS.COM® Brand Fits Yamaha Lower Gear Case Oil Drain Gasket 10 Pack Replaces 90430-08020-00 - (600)

  10 pc Package Replaces OEM Yamaha 90430-08020-00 & 90430-08003 Fits Almost All Outboard Lower Units Replacement Kits Brand Aftermarket Kit 100% Satisfaction Guaranteed

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• Bestseller #1

  Lower Unit Grease Gaskets, Gearcase Lube Drain Screw Washer 26-830749, Gearcase Drain Plug Seal for Mercury 115FS 150 EFI Four Stroke and Mariner Outboards and MerCruiser Stern Drives (62)

  Made of high quality material with rubber coated, prevent gear oil leaking. For use on the 3/8-16 drain/fill screw holes in outboard and stern drive gearcases. Gearcase gear lube drain screw washer 830749 is rubber coated stainless steel that fits for Mercury and Mariner outboards and all MerCruiser stern drives with 3/8-16 gearcase drain/fill screw holes. Always double check to make sure the washer has been secured when reinstalling the drain screw. Water could infiltrate the gearcase without it and cause catastrophic damage to the gearcase. Keep spares on hand to assure placement after changing gear lube in gearcase.This is the exact seal for its gearcase drain, filler, and vent screws. Change this every time you change your gearcase oil. It’s designed to “crush” under torque so it’s a one time use washer. Replacement gaskets for the Mercury's lower unit drain and vent plugs.

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• Bestseller #1

  Marine Magnetic Outdrive Gear Case Drain Plug, Screw with Gasket Replace 22-8M0058389, Lower Unit Gear Lube Drain Fill Hole Screw and Seal for Mercruiser Mercury (62)

  Needed these for your mercury mercruiser outboard. Fit perfect and are magnetic, so metal fillings within the lower unit will stick to them for the nest flushing and refill. 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 stern drives, Mercury and Mariner outboards except the Verado series. 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. This plug fits your Mercury and Mercruiser just perfect and seals the lower unit just fine. Fit, form and function are spot on. The magnet is strong and will do the job of collecting metal shavings well. Drain Plug (Magnet) is interchangeable with the following: for Chrysler 2267892A1, 22-67892, GLM 21731, for Mallory 9-72651, for Mercruiser/Mercury 10-14834, 10-14834A1, 22-67892, 22-67892A06, 22-8M0058389, 22-67892A1.

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• Bestseller #1

  (20-Pack) TonGass Exact Replacement Yamaha 90430-08020-00 & 90430-08003-00 - Lower Gear Case Oil Drain Gaskets - Japanese Hard Fiberboard Gaskets - Fits Most Yamaha 4-Stroke Outboard Motors (433)

  TONGASS EXACT REPLACEMENT YAMAHA 90430-08020-00 & 90430-08003-00 - These gaskets are an exact replacement for Yamaha part number 90430-08020-00. Alternative part numbers include 90430-08003-00, 90430-08003, 90430-08801-00, and 604-45342-00-00 (superseded by 90430-08003-00). These part numbers have the same specifications and make, having a 5/16 inch (8mm) interior diameter. LOWER GEARCASE OIL DRAIN GASKETS - Sometimes changing lower unit oil several times per season also means changing gaskets - or losing them. Don’t let leaks stop you. Always have several lower unit gaskets on hand. Our 20-pack lower gear case oil drain plug gaskets will have your back. JAPANESE HARD FIBERBOARD GASKETS - Made from hard and watertight materials, these black fiber gaskets are hard yet lightweight. They are durable and compresses at the same rate as OEM gaskets, creating the perfect seal. Similar to other fiber gaskets, these gaskets are also resistant to oils, preventing oil leaks that will eventually cause the entry of water. FITS MOST YAMAHA 4-STROKE OUTBOARD MOTORS - These gaskets are almost universally compatible with Yamaha’s 4-stroke outboard motor models, but they’re also compatible with several older models and other parts of the motor. Compatible models include Yamaha Outboard 150HP F150LCA 2019 and Yamaha Outboard 175HP F175XCA 2020. RELIABLE AFTERMARKET REPLACEMENT PARTS BY TONGASS - Our line of aftermarket replacement parts meets and even exceeds OEM specifications for quality and durability. You can count on our reliable aftermarket replacement lower unit gaskets to provide an excellent seal for longer.

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• Bestseller #1

  20 Pieces 90430-08021-00 90430-08003 Outboard Lower Unit Oil Drain Seal Washer, Plug Gasket Used on Gear Case Oil Drain and Oil Level Screws for most 4-Stroke Yamaha Outboard Models (67)

  What can you get: you will receive 20 pieces oil drain plug washers in the package, regular replacement of the oil drain plug gasket can better protect your motor. Durable to use: our oil drain plug gasket made of non asbestos composite aluminum, ensuring proper fit with the lower unit drain and oil level screws and creating a tight seal. Size details: the outside diameter of crush washer is 10.3 mm/ 0.4 inch, inside diameter is 8 mm/ 0.31 inch, thickness 1.8 mm/ 0.07 inch, this oil drain plug gaskets washers is needed for every oil change. Reason for replacement: Excessive torque and/or lack of oil on the threads and gasket surfaces could damage the gasket, resulting in an oil leak and/or water entering the lower unit. Replace your gaskets to keep your outboard running at optimal performance. Reference part number: 90430-08020-00 604-45342-00-00 90430-08801-00 90430-08003-00. Used on lower unit drain and oil level screws for most 4-Stroke Yamaha outboard models.

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