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Whether you're a professional mechanic or a weekend DIYer, the right air compressor can make your work more efficient and less stressful. The Kobalt brand has established itself as a reliable name in portable power tools, and their air compressors are no exception. Our comprehensive guide walks you through the key parts that make up these tools, helping you understand how they work and what components to consider when you're planning your next purchase.

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Kobalt Inline Lubricator

This handy inline lubricator keeps air tools running smoothly by automatically adding oil during use, helping prevent rust and corrosion. The visible oil level lets you know when it's time to refill, and the design delivers oil directly to the tool – no messy drips or spills. Perfect for workshop use where you need reliable tool maintenance.

Kobalt 3/8in x 50ft Orange PVC Air Hose

The Kobalt 3/8-inch x 50-foot PVC air hose combines lightweight flexibility with robust durability, featuring high-tensile polyester reinforcement and a protective sleeve to resist wear and kinking. The reinforced connections and abrasion-resistant outer layer ensure consistent performance at 300 PSI, while the non-marring design prevents damage to surfaces during use.

Kobalt Mini Air Regulator

This compact air regulator, featuring a locking pressure knob and precise SCFM flow, transforms a standard compressor into a versatile tool for automotive maintenance, airbrushing, and small-scale industrial applications. The included pressure gauge and versatile NPT ports make it a practical solution for workshop projects, while the durable metal construction ensures reliable performance in various environments.

Mat Coleman Powermate Sanborn Kobalt Valve Plate

This replacement valve plate gasket is a direct OEM replacement for Coleman Powermate, Sanborn, and Kobalt air compressors, as well as compatible with other major brands. The gasket measures 6-5/8" by 4-1/2" and requires no modification for installation. Multiple users have reported perfect fit and excellent performance, with one noting their compressor felt "like new again" after replacement.

Kobalt Push-Button Coupler

This push-button air coupler makes it super easy to switch between tools, with just a single press to disconnect. It's got a simple design that's been praised for its intuitive one-handed operation – once you get the hang of pressing the button twice to fully release an attached tool, you'll wonder how you ever worked without it. The durable plastic construction holds up well to regular use, though a few users have noted it's a bit bulky compared to traditional couplers.

Kobalt NPT Swivel Plug

This 1/4-inch NPT swivel plug allows your air tool hose to turn 360 degrees, preventing kinks and giving you more freedom to move around. The female connector has a consistent inner diameter for smooth airflow up to 14.75 CFM at 90 PSI. It's made from durable steel with a clean finish that's easier to work with than standard straight connectors. While some users note minor threading issues, the swivel helps reduce stress on both the hose and your wrist, making it especially useful for tight spaces or awkward angles.

Kobalt Brass NPT Coupler

This solid brass coupler makes quick work of connecting air hoses and tools with its 1/4-inch NPT male threads. The universal design works with both industrial and automotive plugs, and the female version is just as reliable. While some users note minor air leakage with certain tools, the professional-grade construction makes it a durable addition to any air compressor setup.

PeakBlen 3-Set Central Pneumatic Compressor Parts

This three-pack of central air port compressor parts includes everything you need to replace worn-out components on your Harbor Freight or Craftsman air compressor. The package contains six stainless steel reed valves, which are a marked improvement over the original factory parts that can rust and fail. The kit also includes three aluminum valve plate gaskets, providing a complete solution for common compressor maintenance needs.

Kobalt 3/8-in x 50-ft Premium Rubber Air Hose

Crafted from premium contractor-grade rubber with an impressive 300 PSI pressure rating, the Kobalt air hose stands up to harsh weather conditions and retains flexibility in cold temperatures. Its reinforced 3/8-inch diameter rubber construction resists abrasion and kinking, while the 1/4-inch NPT ends connect easily to standard plugs and couplers. The reliable hose has proven itself through years of use in various applications, though some users have experienced issues with the inner reinforcement over time.

Kobalt VT638901AJ Replacement Belt

This versatile replacement belt fits multiple Kobalt air compressor models, including the VT638901AJ and VT6314 series. The durable belt replaces part numbers like VT631538 and VT631505AJ, ensuring compatibility with both single-stage oil-bath compressors and belt-driven portable units. Whether you need a replacement for your Kobalt air compressor or have another power tool that uses the same 4TW29C belt size, this replacement part is an essential stocking stuffer for any tool kit.

Kobalt SGY-AIR207 3/8" 50' Air Hose

At just $30 including tax, the Kobalt poly hybrid air hose represents one of the best bargains in the compressor accessories department. The 50-foot length fits snugly in your tool belt's side pocket thanks to its lightweight construction, while the rubber-PVC blend maintains flexibility even in frigid temperatures. Whether you're inflating tires, powering tools, or maintaining equipment, this hose handles pressures up to 300 PSI without complaint – though some users recommend keeping it coiled on a dedicated reel to maintain its straight-line performance.

Porter Cable N286039 A17038 1/4" NPT Air Compressor Drain Valve (3 Pack)

When you're working with air compressors, keeping your system running smoothly means paying attention to the details – like making sure water doesn't build up in your tank. That's where these drain valves come in. The genuine Porter Cable version makes installation a breeze, fitting perfectly into most 1/4" NPT compression ports without any extra hassle. Whether you're using a Porter Cable or DeWalt compressor, these replaceable valves keep your setup running efficiently.

Kobalt Disposable Air Filter

The Kobalt disposable air filter clips effortlessly onto your spray gun or air hose, stopping moisture and oil from making a messy entrance. Thanks to its tough metal threads, it stays firmly in place while doing its job of keeping your paint job smooth and defect-free. While some users might want a few more threads for the female end, most folks find it works great for the price, especially when you consider the alternative bulkier options available.

Kobalt NPT Mini Ball Valve

This compact ball valve lets you control air flow right at your tool while providing a solid seal for total shut-off. The Kobalt version has held up well in various applications, from air tool regulation to compressor maintenance, though some users have noted occasional installation issues due to its tight tolerances. It's a handy addition to any air tool setup that needs precise flow control.

Kobalt Brass Coupler

Made from solid brass, this industrial coupler provides a secure connection for air hoses and tools using 1/4-inch female NPT threads. With its robust construction and reliable ball-bearing mechanism, it offers quick-release functionality while maintaining a tight seal to prevent leaks. While some users report minor compatibility issues with older fittings, most find it easier to use than similar couplers, requiring just one hand to operate the release mechanism.

Kobalt 1/4-in Coupler

When paired with Kobalt's V-style connectors, this male coupler lets air flow through twice as fast as regular fittings, which means your tools get the air they need more quickly. The aluminum design is pretty tough—lightweight and resistant to rust, even though you might bang it around a bit when you're working. It can handle up to 300 pounds of pressure, so it's built to last for all your air tool needs.

Kobalt Air Hose

The Kobalt 1/4-in x 25-ft Polyurethane Air Hose smoothly delivers compressed air with its 360° swivel fittings and bend restrictors that shield against kinks. Its lightweight polyurethane construction maintains flexibility in various temperatures, ensuring consistent performance whether you're working in a garage or on a jobsite. The reinforced hose can handle 300 PSI, making it a reliable companion for pneumatic tools like nailers while keeping setup costs modest through its efficient design.

Kobalt 3/8in 100ft PVC Air Hose

This lightweight PVC air hose makes connecting tool and compressor a breeze, with its flexible design that prevents kinking and its convenient 100-foot length that lets you work from a single stationary compressor. The abrasion-resistant construction and oil protection mean it handles tough jobs like nail gunning and paint spraying without complaint, while the color-popping bright finish helps you spot it quickly in the workshop or garage. The included bend restrictors and non-marring surface prove their worth over time, keeping the hose in great condition for the long haul.

Kobalt 1/4-in x 100-ft Triple Hybrid Air Hose

This triple hybrid hose combines rubber, PVC, and polyurethane for exceptional flexibility, whether you're working in the cold or need to maneuver around tight spaces. The field-repairable design means you can fix minor damage on the spot, saving you time when you're in the middle of a project. Each end features 1/4-inch NPT connections that attach to standard air tools and hoses, making it a versatile addition to your tool kit for framing and roofing jobs.

Kobalt 3/8-in Kink Free 50-ft Air Hose

This flexible air hose combines rubber, PVC, and polyurethane for superior durability and cold-weather performance. The lightweight design with kink-resistant technology makes it easy to maneuver, while the 300 PSI rating ensures reliable operation with most compressors. Although some users report minor issues like odor and occasional bulging, many appreciate its exceptional flexibility and ease of use.

Coleman Powermate Sanborn Kobalt Air Compressor Pump Gasket

This replacement cylinder valve plate gasket fits multiple Coleman Powermate pumps, including the 753H and 755H air compressor models. Compatible with various air compressor brands, this simple yet crucial part seals the connection between the cylinder and valve plate. The rubber gasket measures 6-5/8" long and 4-1/2" wide at its widest point, ensuring a proper seal for your compressor pump.

Kobalt 12-Piece Accessory Kit

This well-reviewed 12-piece accessory kit brings much-needed functionality to air compressors, featuring durable brass fittings and a reusable 25-foot nylon hose with built-in bend restrictors. The included tire gauge and ball chuck provide essential tools for maintaining your vehicle's air pressure, while the compact hose and quick-connect couplers save space in your toolbox.

Kobalt NPT 3-in-1 Air Manifold

This tough aluminum air manifold lets you power three tools from one compressor connection. The 3/8-inch NPT inlet fits snugly over your air line, while the three 1/4-inch outlets sit at angles to make quick-connects a breeze. Users love how reliable it is - one reviewer got zero leaks after 20 minutes at 175 psi, so you can trust it for your biggest jobs.

Kobalt 3/8-In Industrial Male Plug Kit

Made for serious tool users who need reliable air connections, these steel plugs replace the small 1/4" fittings many tools come with. The 3/8" size makes a huge difference in airflow when you're using powerful tools like impact guns. The all-steel construction and standard NPT threads make installation simple – just add some thread tape and you're good to go.

Kobalt 3/8-inch Air Regulator

Crafted from zinc-alloy for durability, the Kobalt air regulator features a locking pressure knob to prevent accidental pressure changes. It's designed for easy air pressure adjustment and straightforward installation, making it compatible with various air compressor systems. While some users report excellent performance and reliable operation, others have experienced premature failure and functional issues, particularly with the plastic components under pressure.

Kobalt Compressor Tank Drain Hose

This flexible hose extends convenient access to your compressor's drain valve, featuring a quarter-turn ball valve and pre-applied thread sealant for easy installation. Constructed from durable braided steel, it mounts easily to your compressor with its 12-inch length and 1/4-inch NPT threads, making it a practical addition to any stationary air compressor setup.

Kobalt 26-Gallon Air Compressor Belt

This exact replacement belt fits both the Kobalt 26-gallon 1.5 HP air compressor and the special Carlisle model, ensuring your tool runs smoothly again. The reinforced belt fits the 115-volt compressor at 60Hz, maintaining the 175 PSI pressure rating.

Kobalt SGY-AIR200 Air Compressor Accessory Kit

This versatile 18-piece kit from Kobalt includes everything you need to power up your air compressor, from tire gauges to blow guns. The included Teflon tape and variety of connectors make it easy to attach tools and equipment to your compressor, while the storage bag helps keep everything organized. While a few users have reported minor quality issues like fitting problems, the majority love how the kit lets them tackle multiple air-powered tasks around the home or garage.

Kobalt Air Compressor Tank Shut-Off Valve Kit

The Kobalt Air Compressor Tank Shut-Off Valve Kit gives you reliable control over your compressor's air flow with its 3/8-inch ball valve. Two bushings included enable you to connect either 3/4-inch or 1/2-inch ports down to a standard 3/8-inch line, making it simple to integrate with most compressor tanks. Users appreciate how smoothly the valve operates and its straightforward installation process.

Kobalt SGY-AIR48NB Inflation Kit

When you've got balls to inflate and tires to fill, this handy Kobalt kit gives you the tools to do it right. Whether you're fixing up a bike or giving the grandkids' toys a boost, these rubber-tipped pieces work with your standard air blow gun to get the job done.

Kobalt 165 PSI Tank Safety Valve

Made from durable brass and featuring a 1/4-inch fitting size, this safety valve protects your air compressor by releasing excess pressure when the PSI reaches 165. The pre-applied thread sealant makes installation a breeze, and at 35 CFM, it handles the maximum flow rate efficiently. While it doesn't include the convenience of built-in thread lock like some competitors, the 3-year limited warranty gives you peace of mind.

Kobalt 3 Gal Air Compressor Belt

This replacement belt fits perfectly on my Kobalt peanut air compressor and works great, according to another user who reviewed it. At just 3 gallons, it's a practical portable compressor for tool shops and workshops.

Kobalt Air Adjusting Valve

This compact brass valve, featuring a 1/4-inch NPT connection, gives you precise control over air flow to your tools with its simple quarter-turn handle. While it doesn't change the overall pressure, it brilliantly solves the problem of knowing exactly how much pressure is reaching your air tool, thanks to its built-in gauge that shows pressure only when the tool is in use. The included 1.5-inch gauge reads up to 160 PSI and helps ensure consistent performance across different air tools and applications.

Kobalt Mini Air Filter

When you're working in the garage or on a small project, you need an air filter that's reliable and efficient - that's where the Kobalt mini air filter comes in. At just the right size for portable compressors, it catches a surprising amount of moisture without taking up much space. The filtered air helps protect your tools and extends their lifespan, making it a smart investment for anyone who uses air-powered equipment regularly.

Kobalt High Flow Swivel Plug

This lightweight aluminum plug combines smooth swivel action with larger bore design for double the air flow compared to standard fittings. The 300 PSI rating and corrosion-resistant construction make it a reliable addition to your air tool setup, while the compact size helps prevent tangles in your air hose. Compatibility with High Flow (V) couplers ensures seamless integration with your existing tools.

Kobalt High-Flow Fittings

These high-flow air fittings deliver double the airflow compared to standard fittings through their larger bores, making them particularly effective for tools that require substantial airflow. The aluminum construction is both lightweight and resistant to corrosion, though careful attention is needed to avoid damage during installation. The set includes a female coupler and two male plugs, with all pieces featuring 1/4-inch NPT threads and built-in sealing tape for easy installation.

Kobalt 3/8-in x 50-ft Rubber Air Hose

This rubber air hose combines durability with flexibility, keeping its shape in cold weather and resisting twists that could shorten its life. The 50-foot length makes it handy for moving around your workshop or yard, while the 1/4-inch NPT ends match standard air tool connections. The Kobalt hose has earned solid praise from users who appreciate its reliable performance and long-lasting quality.

Kobalt 42-pc Job Site Air Fittings Kit

When your air tools go rogue, this handy kit swoops in to save the day. From quick-connects to versatile manifolds, it's packed with 42 high-quality pieces that'll keep your air system purring like a well-groomed cat. The best part? It survived our grueling real-world testing with zero leakage complaints – though we wouldn't recommend pushing your luck with that swivel connector in tight spaces.

Kobalt Multi-Purpose Air Tank

This versatile air tank pairs a stout 7-gallon capacity with industrial-grade brass fittings and durable welded construction. The included 4-foot high-pressure hose makes quick work of tire inflation, while the built-in reservoir helps extend compressor runtime for tool-powered applications. The drain valve keeps the tank dry and rust-free, making it a practical choice for both home and professional settings.

Kobalt 15 PC Plug and Coupler Kit

This 15-piece kit from Kobalt ticks all the boxes for air tool enthusiasts, with two couplers and a total of 12 industrial-grade plugs that thread neatly into 1/4-inch NPT connections. The included resin storage case keeps everything organized and protected when you're not using it, and the quality feels solid enough to last through countless air tool connections. While a couple reviewers mentioned needing a bit of extra effort to get a leak-free seal with the Teflon tape, the overall consensus is that these fittings are robust enough for serious DIY projects without breaking the bank.

Kobalt 1/4" Ball Chuck

This durable Kobalt ball chuck features a robust all-metal construction and standard 1/4-in NPT threads for secure air connections. The offset head design makes it particularly handy for aligning with tire valves. While it requires a separate air chuck adapter, users consistently praise its quality and reliability for everything from inflating tires to filling portable air tanks.

Kobalt 3/8" x 25' Poly Air Hose

This flexible air hose handles temperatures from -40° to 149° F without losing its shape. Thanks to the bend restrictors, you get smooth airflow even when the hose makes sharp turns. The industrial brass coupler and reinforced construction mean this hose can take the heat while protecting your equipment.

Kobalt Polyurethane Air Hose

The durable Kobalt polyurethane hose brings professional-grade performance to home and garage workshops with its impressive 160 PSI rating and flexible recoil design that prevents kinking and tangling. At just 5 feet when coiled, it saves space while providing ample 25-foot reach for tools and equipment. The protective sleeve on one end and swivel fitting on the other reduce stress on tools and prevent surface scratches, making it a practical choice despite some quality control issues reported by users.

Kobalt 3/8-inch x 25-foot Rubber Air Hose

Made for serious air tool users, this flexible 25-foot rubber hose lives up to its promise of remaining twist-free even in chilly garage temperatures. The included brass couplers make quick work of connecting to your tools, while the durable rubber construction stands up to years of regular use without showing signs of wear.

Buyer's Guide

Kobalt air compressors are known for their durability and performance, but like any mechanical device, they require regular maintenance and occasional parts replacement. Understanding the key components and their importance will help you select the right parts for your specific needs and extend the life of your compressor.

Key Components and Their Functions

The air compressor consists of several critical components that work together to deliver compressed air. Major parts include the motor (provides power), air tank (stores compressed air), valves (controls air flow), and air filter (prevents debris from entering the system). Each component has specific replacement requirements based on usage frequency and environmental conditions.

Replacement Frequency Considerations

Regular maintenance extends compressor lifespan, but determining when to replace parts requires attention to specific indicators. Filters typically need replacement every 6-12 months, while air tanks may last 5-7 years with regular service. Motors and valves usually indicate replacement needs through increased power consumption or reduced airflow.

Quality and Compatibility Standards

When selecting replacement parts, prioritize quality and compatibility to ensure proper function and longevity. Kobalt parts are engineered specifically for their products, offering the best combination of durability and performance. Always verify that new parts match your compressor's specifications regarding voltage, PSI, and cubic feet per minute (CFM) rating.

Installation and Service Requirements

Proper installation and regular service significantly impact a compressor's performance and lifespan. Before making parts replacements, ensure all components are clean and dry to prevent moisture damage. Regularly check and tighten all connections, and consider hiring a professional for major service tasks like motor replacement to ensure proper installation and safety.

FAQ

What types of Kobalt air compressor parts are available?

Kobalt offers a range of air compressor parts including filters, valves, hoses, and drain kits. They also provide pump assemblies, motor components, and control panels for their compressors.

The specific parts vary by model, so it's important to consult your owner's manual or Kobalt's website to find compatible replacements.

Are Kobalt air compressor parts compatible with other brands?

While some parts may be similar across brands, Kobalt parts are specifically engineered for Kobalt compressors. Using non-OEM parts can void warranties and potentially damage your compressor.

Always verify compatibility before purchasing third-party parts.

How do I know which parts my air compressor needs?

Check your air compressor's user manual for recommended maintenance schedule and part replacement needs. You can also refer to Kobalt's maintenance guide or contact their customer support.

Common needs include filter replacements (every 6-12 months) and valve servicing (annually) depending on usage frequency and conditions.

What's the difference between dry and wet compressors?

Dry compressors expel oil-free air, ideal for applications requiring clean, dry air like automotive detailing or electronics cleaning. Wet compressors produce air with a small amount of oil mist, suitable for construction and general industrial use.

Select a dry compressor for precision work requiring absolutely oil-free air, or a wet compressor for general maintenance and power tool use.

How do I maintain an air compressor properly?

Perform weekly visual inspections for leaks and loose connections. Schedule monthly maintenance to check oil levels, filter condition, and drain the reservoir.

Follow the manufacturer's guidelines for compressor idle times between uses and storage recommendations to extend equipment lifespan.

Can I use any electrical outlet for my air compressor?

Most air compressors require a standard 120V outlet. Check your compressor's specifications for voltage requirements. Some models may need a dedicated circuit or 240V power supply for heavy-duty use.

Always use a properly grounded electrical outlet and avoid extension cords unless necessary. For stationary compressors, consider having a dedicated circuit installed by a professional.