The Best Oil Drain Plugs 2025

1. Attwood Stainless Steel Garboard Drain Plug

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Attwood Stainless Steel Garboard Drain Plug: Stainless steel Boat drain plug only Saltwater friendly Machined, tapered pipe threads Ensures a watertight plug fit

2. Quicksilver 16951Q1 Sterndrive or Inboard Engine Block or Manifold Brass Drain Plug

Engine block or manifold drain plug 16951Q1 fits most MerCruiser sterndrive or inboard engines blocks and manifolds to make draining cooling water for winterizing or changing anti-freeze easier. Can be used with engines equipped with closed cooler or raw water cooling systems. May also fit other brands of sterndrive or inboard engines and manifolds. See your owner's manual for installation instructions and application information. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original equipment replacement engine parts, oils, and accessories, but also works to serve all original equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.

Machined brass engine block or manifold drain plug with 1/4 in. NPT fitting Easy to install with common tools Replaces worn or damaged plugs to make winterizing your engine easier

3. Sierra 18-2244 Drain Plug - 3/8"

The Sierra 18-2244 Drain Plug is interchangeable with the following: Chrysler F40109, GLM 22420, Mallory 9-72650, Mercury/Mercruiser 816610A2, 816610A1, 10-28634A1, 10-28634, 10-79953, 10-79953A2, 10-79953Q2, 10-79953Q04. Each Sierra product meets or exceeds the original equipment part it replaces.

Sierra Drain Plug Used with Sierra 18-2945 Drain Screw Gasket Sierra part number: 18-2244 Interchangeable with the following: Chrysler F40109, GLM 22420, Mallory 9-72650, Mercury/Mercruiser 816610A2, 816610A1, 10-28634A1, 10-28634, 10-79953, 10-79953A2, 10-79953Q2, 10-79953Q04 Fit specific, check part numbers to ensure proper fit

4. PLUG DRAIN SNAP LOCK 1" (Pack of 1)

Seachoice Brass 6.5 in. L x 1 in. W Drain Plug 1 pc.

Brand Name: Seachoice Material: Brass Length: 6.5 in. Width: 1 in. Product Type: Drain Plug Number in Package: 1 pc. Color: Black Packaging Type: Carded Type: Snap Lock Department - AUTO/PET/SPORTS mdseClass - MARINE ACCESSORIES prodGroup - MARINE HARDWARE

5. Attwood Cast Bronze Garboard Drain Plug 1/2" NPT

Garboard Drain Plug Cast Bronze Attwood's Bronze Garboard Drain Plug reliably provides bilge drainage when hauling out, and it seals securely when not draining. It has machined and tapered pipe threads to ensure a watertight plug fit, and the nut can be removed with a wrench or pliers. This drain plug has a 3/8-inch neck depth and a ½-inch NOT drain. It installs easily and securely using #8 screws in 3 countersunk holes. Manufacturer : Attwood Marine Manufacturer Part No : 7555-3 UPC : 022697755537

Attwood Cast Bronze Garboard Drain Plug 1/2" NPT: Nut removes with wrench or pliers Machined, tapered pipe threads ensure watertight plug fit .38" neck depth 3 countersunk holes for #8 screws Cast bronze drain and plug .5" NPT fitting drain plug is durably made

6. US Hardware M-003C Drain Plug Stainless Steel For 1 in Dia Drain

"UNITED STATES HARDWARE" DRAIN PLUGS Easy to use, simply snap the handle down to fit snug. Brass. For 1" diameter drains. A clockwise turn of the handle tightens the plug.

Features Drain plugs Snap - Stainless steel Marine Size - 1 in. Item weight - 0.16 lbs. - SKU: ORGL40753

7. Attwood Corporation Drain Plug and Receiver Kit

The Attwood Corporation Drain Plug and Receiver Kit is designed specifically for use in a personal water craft. It is made of molded black ABS plastic and features a threaded receiver and molded retaining strap. This Attwood drain plug also includes two attaching screws and an elastomeric gasket for a watertight fit. It is compatible with various types of drains and vents.

Attwood Corporation Drain Plug and Receiver Kit: Made of molded plastic and has a threaded receiver Equipped with a molded retaining strap Includes attaching screws and elastomeric gasket for a watertight fit Measures .75" in diameter and features a 1-piece design Designed specifically for personal water crafts Oil drain plug kit color: black

8. Sea Dog Line Snap-Handle Drain Plug, 25-Piece Display, 520070-5

Sea Dog 5200705 Snap Handle Drain Plug 1In Snap Handle Drain Plug Snap Handle Drain Plug, 1" Attributes: Fits = 1" wiithout Safety Chain Packaged = P.O.P. Display - 25 Pcs. Material = Brass

Sea-Dog Marine Drain Plug 1" Display 25 PC (3-520070-5) - The Snap Handle Drain Plug has a cam motion that makes installation simple and ensures a leak-proof seal. To tighten the plug, crank the handle clockwise, then snap it down to lock it. This item is made of stamped brass and nitrile rubber; it's sturdy and won't readily bend, and the handle won't rust, so it'll last a long time. Key Features: They are made of high-quality brass, which is difficult to break or deform, corrosion-resistant, and solid and sturdy enough to last a long time; also, they have excellent workmanship, are easy to handle, and have a tight and long-lasting impact. Easy to use: With adjustable rotational torque, the brass snap handle drain plugs are simple to use and install; snap them into the drain tube from the internal beam, and you'll have a pleasant experience. Practical situations: These boat drain plugs can be used in various locations, including the bottom hatch, lifeboat, and breakwater, among others, providing you with a great deal of convenience. Replaces 520070-5, 35514520669. Specifications: SKU: 3-520070-5 UPC: 035514520669 Weight: 3.20 LBS A: Display POP-Snap Handle Drain Plug 1"-25 pcs. Brand: Sea-Dog Marine Material: Brass Stamped Brass/Nitrile Rubber The Snap Handle Drain Plug features a cam action for easy installation and leak proof seal. Simply turn the handle clockwise to tighten the plug then snap down the handle to lock. Constructed of durable stamped brass and nitrile rubber. Available in 1ù and 1-1/4ù sizes, with or without a retention chain. This product replaces: 520070-5, 35514520669 Sea Dog Marine Drain Plug 1" Display 25 Pc (520070-5) Sea Dog Marine

9. Roadpro Replacement Rubber Hub Oil Plug,1.175 RP-2265P

This rubber plug serves as a replacement for the majority of oil caps available on the market. Measures 1.5 inches at top and 1.125 inches inside diameters. (We recommend you refer to your manufacturer guidelines or consult the equipment manual for accurate information on locating and servicing the hub oil plug and to ensure the proper size needed.)

Durable rubber Replacement rubber oil plug for trailer oil caps Inside diameter is 1.125 inches to fit most oil plug centers

10. Pentair Sta-Rite U178-920P 0.25" NPT Plug with O-Ring

Pentair 0.25 in. NPT Plug with O-Ring Sta-Rite U178-920PThe U178-920P Plug is a replacement part for the following products: Dyna-Glas Pump Dyna-Max Pump Dyna-Jet TPE Pump JWP Pump ABG Pump JWPA Pump Max-E-Glass pump Dura-Glass pump Max-E-Glass II pump Dura-Glass II pump MasterTemp heater Dyna-Pro pump Dyna-Pro E pump Max-E-Pro pump Max-E-Therm heater Multiport Side Mount 1.5 in. 2 in. valve Dyna-Wave pump

Pentair 0.25 in. NPT Plug with O-Ring Sta-Rite U178-920PThe U178-920P Plug is a replacement part for the following products: Dyna-Glas Pump Dyna-Max Pump Dyna-Jet TPE Pump JWP Pump ABG Pump JWPA Pump Max-E-Glass pump Dura-Glass pump Max-E-Glass II pump Dura-Glass II pump MasterTemp heater Dyna-Pro pump Dyna-Pro E pump Max-E-Pro pump Max-E-Therm heater Multiport Side Mount 1.5 in. 2 in. valve Dyna-Wave pump