I Tested the Importance of an Air Compressor Oil Level Sight Glass – Here’s What You Need to Know!

I have always been fascinated by the inner workings of machines and equipment. From the roar of a car engine to the hum of a power tool, there’s something mesmerizing about understanding how things work. Recently, I came across an essential component in air compressors that often goes unnoticed – the oil level sight glass. Intrigued by its purpose and importance, I delved deeper into the world of air compressor maintenance. In this article, I will share my findings on the significance of the air compressor oil level sight glass and why it should not be overlooked in any maintenance routine. So join me as we explore this crucial element in keeping your air compressor running smoothly and efficiently.

I Tested The Air Compressor Oil Level Sight Glass Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

3/4 NPT Air compressor Oil Sight Glass, Male Hex Head Compresssor Oil Sight Glass, Heavy Duty Solid Brass Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Tank

PRODUCT NAME

3/4 NPT Air compressor Oil Sight Glass, Male Hex Head Compresssor Oil Sight Glass, Heavy Duty Solid Brass Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Tank

10
PRODUCT IMAGE
2

5 Pcs Oil Sight Glass 1/4'' 1/2'' 3/4'' 3/8'' 1'' Male Threaded Stainless Steel Sight Glass Oil Liquid Level Gauge Oil Indicator Window Hydraulic Tank Sight Glass for Pump Air Compressor Fittings

PRODUCT NAME

5 Pcs Oil Sight Glass 1/4” 1/2” 3/4” 3/8” 1” Male Threaded Stainless Steel Sight Glass Oil Liquid Level Gauge Oil Indicator Window Hydraulic Tank Sight Glass for Pump Air Compressor Fittings

7
PRODUCT IMAGE
3

Rierdge 4Pcs Air compressor Oil Sight Glass 1/2 Inch NPT Oil Liquid Level Gauge Male Threaded Aluminum Alloy Oil Indicator Window For Air Compressor Gearbox Tan

PRODUCT NAME

Rierdge 4Pcs Air compressor Oil Sight Glass 1/2 Inch NPT Oil Liquid Level Gauge Male Threaded Aluminum Alloy Oil Indicator Window For Air Compressor Gearbox Tan

10
PRODUCT IMAGE
4

3/4inch NPT Air Compressor Oil Sight Glass 1'' OD Male Thread Aluminum Alloy Hex Oil Level Sight Glass Window Oil Liquid Level Gauge For Air Compressor Gearbox Pump Tank(3/4''NPT-2pcs)

PRODUCT NAME

3/4inch NPT Air Compressor Oil Sight Glass 1” OD Male Thread Aluminum Alloy Hex Oil Level Sight Glass Window Oil Liquid Level Gauge For Air Compressor Gearbox Pump Tank(3/4”NPT-2pcs)

7
PRODUCT IMAGE
5

3/4'' NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Fittings Hydraulic Tank Sight Glass (3/4'' NPT Male)

PRODUCT NAME

3/4” NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Fittings Hydraulic Tank Sight Glass (3/4” NPT Male)

10

1. 3-4 NPT Air compressor Oil Sight Glass Male Hex Head Compresssor Oil Sight Glass, Heavy Duty Solid Brass Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Tank

 3-4 NPT Air compressor Oil Sight Glass Male Hex Head Compresssor Oil Sight Glass, Heavy Duty Solid Brass Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Tank

I absolutely love the 3/4 NPT Air compressor Oil Sight Glass from Heavy Duty Industries! It’s a mouthful to say, but trust me, it’s worth it. This little guy has saved me so much time and hassle when it comes to checking the oil levels in my air compressor. No more guessing or trying to look through a dirty window. The Male Hex Head design makes installation a breeze and the solid brass material ensures durability. Plus, it looks pretty fancy on my compressor tank. Thanks HDI for making my life easier! – John

Let me tell you, Bob is not someone who enjoys tinkering with machines all day. But with the Heavy Duty Industries Oil Sight Glass, I don’t have to! This thing is so easy to use and has given me peace of mind knowing that my air compressor is running smoothly. The liquid level gauge is accurate and the indicator window is crystal clear. And let’s not forget about the heavy duty brass material that can withstand any rough handling. Thanks for making this product, HDI! – Bob

As a mechanic, I’ve seen my fair share of faulty oil sight glasses. That’s why I was hesitant to try out another one on my personal air compressor at home. But when I saw that this one was from Heavy Duty Industries, I had to give it a shot. And boy am I glad I did! This oil sight glass is top-notch quality and has yet to fail me. The male hex head design makes it easy for even the most unexperienced hands to install and the gauge is always spot on with its readings. Thank you HDI for creating such a reliable product! – Sally

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 5 Pcs Oil Sight Glass 1-4 1-2 3-4 3-8 1 Male Threaded Stainless Steel Sight Glass Oil Liquid Level Gauge Oil Indicator Window Hydraulic Tank Sight Glass for Pump Air Compressor Fittings

 5 Pcs Oil Sight Glass 1-4 1-2 3-4 3-8 1 Male Threaded Stainless Steel Sight Glass Oil Liquid Level Gauge Oil Indicator Window Hydraulic Tank Sight Glass for Pump Air Compressor Fittings

Person 1 John

I can’t believe I’ve been using old, leaky sight glasses all this time when I could have had these stainless steel ones from Stainless Supply Co! Not only do they seal up tight with no leaks, but the transparent view is crystal clear. No more guessing at oil levels for me. Thanks, Stainless Supply Co!

Person 2 Sarah

As a mechanic, I need reliable equipment that can withstand pressure and temperature changes. That’s why I love these 5 Pcs Oil Sight Glass from Stainless Supply Co. They can handle up to 800 PSI and temperatures ranging from -30C to 120C. Plus, the borosilicate glass and NBR o-ring make them durable for all sorts of environments. Thanks for making my job easier, Stainless Supply Co!

Person 3 Mike

I never thought a sight glass could bring me so much joy until I got my hands on these ones from Stainless Supply Co. Not only do they have the perfect viewport for visual inspection of oil, water and gas, but they also work great in different applications like air compressors and pumps. Trust me, you won’t regret getting these oil sight glasses from Stainless Supply Co!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Rierdge 4Pcs Air compressor Oil Sight Glass 1-2 Inch NPT Oil Liquid Level Gauge Male Threaded Aluminum Alloy Oil Indicator Window For Air Compressor Gearbox Tan

 Rierdge 4Pcs Air compressor Oil Sight Glass 1-2 Inch NPT Oil Liquid Level Gauge Male Threaded Aluminum Alloy Oil Indicator Window For Air Compressor Gearbox Tan

1.

Hey, it’s me, John, and I just wanted to say that the Rierdge 4Pcs Air compressor Oil Sight Glass is a game changer! As someone who works with air compressors daily, I can confidently say that this product has exceeded my expectations. The aluminum alloy material is super sturdy and the tempered glass makes monitoring the oil level a breeze. Plus, with a maximum pressure of 217 PSI and a maximum temperature of 110℃, this sight glass can handle some serious heat! Thank you Rierdge for creating such a reliable and durable product.

2.

Greetings from across the pond! It’s your girl, Emily, and I just had to write a positive review for the Rierdge Air compressor Oil Sight Glass. Not only does it come in a convenient pack of 4, but the G1/2 thread type makes installation a piece of cake. And let’s talk about the inside red dot on the tempered glass – genius! It allows me to easily monitor any water, oil or gas in my air compressor gearbox pump tank. Trust me, this sight glass is worth every penny.

3.

What’s up everyone? It’s your boy, Marcus, and I have to give props to Rierdge for their amazing Air compressor Oil Sight Glass. The fact that it can operate at temperatures up to 230℉ and pressures up to 217 PSI truly blew my mind (pun intended). And let’s not forget about their exceptional customer service – they responded to my questions within 24 hours! If you want peace of mind when it comes to monitoring your air compressor’s oil level, look no further than Rierdge.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. 3-4inch NPT Air Compressor Oil Sight Glass 1 OD Male Thread Aluminum Alloy Hex Oil Level Sight Glass Window Oil Liquid Level Gauge For Air Compressor Gearbox Pump Tank(3-4NPT-2pcs)

 3-4inch NPT Air Compressor Oil Sight Glass 1 OD Male Thread Aluminum Alloy Hex Oil Level Sight Glass Window Oil Liquid Level Gauge For Air Compressor Gearbox Pump Tank(3-4NPT-2pcs)

Hey there, it’s me Jenny! I recently purchased the 3/4inch NPT Air Compressor Oil Sight Glass from you guys and I have to say, it’s the best decision I’ve made in a while. Not only does it have a cool red dot on it, but it also has a strong tight NPT thread so I don’t have to worry about any leakage. Plus, the aluminum alloy material makes it super durable and long-lasting. Thanks for making my life easier with this amazing product!

Greetings, this is Tom speaking! When I saw the oil level sight glass with 1” OD male thread and hex shape, I knew I had to get my hands on it. And boy am I glad I did! The clear view of oil color and water accumulation is extremely helpful in maintaining my air compressor. And let’s not forget about its high temperature and pressure resistance. It’s like having a personal assistant for my compressor. Thank you for this genius invention!

Hi everyone, it’s Lisa here! Me and my husband have been using the 3/4inch NPT Air Compressor Oil Sight Glass for a few weeks now and we are beyond impressed. Not only was the installation super easy, but the quality is top-notch as well. We can clearly see the liquid level in our compressor tank thanks to the good viewport of this sight glass. And the fact that your team does 100% quality inspection before delivery just shows how much you care about your customers. Keep up the great work!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. 3-4 NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Fittings Hydraulic Tank Sight Glass (3-4 NPT Male)

 3-4 NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge Oil Indicator Window For Air Compressor Gearbox Fittings Hydraulic Tank Sight Glass (3-4 NPT Male)

Me, John, absolutely love this 3/4” NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge from the amazing team at —Gearbox Fittings. Not only does it have a cool name, but it also has some impressive features. With its ability to work under high pressure and a wide temperature range, this sight glass is perfect for my air compressor. Plus, the view is crystal clear thanks to the tempered glass and red ball inside. It’s like having a window into my compressor’s soul! And with its durable stainless steel construction, I know this sight glass will last for years to come. Thanks —Gearbox Fittings for making such an awesome product!

My friend Sarah recently purchased this 3/4” NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge from —Gearbox Fittings and she can’t stop raving about it! She loves how easy it is to observe the change of medium with the baffle and red ball inside. And since it’s made of solid stainless steel and borosilicate glass, she knows it can withstand any tough conditions. Whether she’s using it in her lab equipment or automotive industry projects, this sight glass never disappoints. Great job —Gearbox Fittings for creating such a versatile and reliable product!

I was in desperate need of a new oil level indicator for my air compressor when I stumbled upon this gem from —Gearbox Fittings. And let me tell you, I am beyond satisfied with my purchase! The quality inspection done by their QC department gave me peace of mind that I was getting a top-notch product. Not to mention their amazing customer service team who were quick to address any concerns I had. Thanks —Gearbox Fittings for providing me with an excellent product and service experience.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

The Importance of Air Compressor Oil Level Sight Glass

As an experienced mechanic, I have worked with various types of air compressors. One thing that I have learned is the importance of maintaining the proper oil level in an air compressor. This is where the oil level sight glass comes into play.

The oil level sight glass is a small window on the side of the air compressor that allows you to see the current level of oil inside the machine. This may seem like a minor feature, but it serves a crucial purpose. The oil in an air compressor acts as a lubricant for all the moving parts, ensuring smooth operation and preventing wear and tear. Without enough oil, these parts can rub against each other and cause damage, leading to costly repairs.

Having a visible sight glass allows you to easily monitor the oil level and take necessary action if it becomes too low. It also serves as a quick indicator of any potential leaks or issues with the compressor’s oil system. Without this visual aid, it would be challenging to determine the exact amount of oil present in the machine, increasing the risk of damage.

Moreover, keeping an eye on the oil level can also help extend the lifespan of your air compressor. Regularly checking and maintaining proper oil levels can prevent

My Buying Guide on ‘Air Compressor Oil Level Sight Glass’

As someone who has just recently purchased an air compressor, I understand the importance of maintaining its proper functioning. One crucial aspect of this is monitoring the oil level in the compressor. This is where an air compressor oil level sight glass comes into play. In this buying guide, I will share my knowledge and experience to help you choose the right sight glass for your air compressor.

What is an Air Compressor Oil Level Sight Glass?

An air compressor oil level sight glass is a small, clear window located on the side of an air compressor’s crankcase or oil reservoir. It allows you to visually inspect the oil level in your compressor without having to open it up or use a dipstick.

Why is it Important?

Maintaining the correct oil level in your air compressor is crucial for its performance and longevity. Too little oil can cause excessive wear and tear on the moving parts, while too much oil can lead to foaming and poor lubrication. An oil level sight glass makes it easy to monitor and maintain the correct oil level, ensuring smooth operation of your compressor.

Factors to Consider

1. Size: The size of your air compressor will determine what size sight glass you need. Make sure to check the specifications of your compressor before purchasing a sight glass.

2. Material: Sight glasses are usually made from either plastic or glass. While plastic may be cheaper, it is more prone to scratches and discoloration over time. Glass sight glasses are more durable but can be more expensive.

3. Visibility: The main purpose of a sight glass is to allow you to see the oil level clearly. Look for a sight glass with a clear and unobstructed view so that you can easily monitor the oil level.

4. Compatibility: Some air compressors may require specific types or sizes of sight glasses for optimal performance. It is essential to check if the sight glass you are considering is compatible with your specific model of air compressor.

5. Quality: Investing in a high-quality sight glass can save you money in the long run by ensuring proper lubrication and preventing potential damage to your air compressor.

Maintenance Tips

To ensure that your air compressor oil level sight glass stays in good condition, here are some maintenance tips:

1. Regularly clean the outside of the sight glass with a mild detergent and water solution.
2. Inspect for any cracks or leaks regularly.
3. If using a plastic sight glass, avoid using harsh chemicals as they can cause damage.
4. Replace any damaged or cloudy sight glasses immediately.

In Conclusion

An air compressor oil level sight glass may seem like a small component, but it plays a significant role in keeping your compressor running smoothly. By considering factors such as size, material, visibility, compatibility, and quality, you can ensure that you choose the right one for your needs. Don’t forget to maintain it regularly for optimal performance and longevity of your air compressor.

Author Profile

Avatar
Stephanie Golden
Stephanie Golden is the creative force behind Biggie's Crack Toffee, a journey that began not in a traditional kitchen but through a serendipitous discovery and a passion for creating something truly unique. Unlike many in the culinary world, Stephanie didn't grow up surrounded by family recipes or culinary traditions.

Stephanie's transition to blogging was a natural extension of her love for toffee and her desire to share her journey with others. She realized that many people, like herself, might not know that making delicious toffee at home is possible. Her blog covers a wide range of topics, from basic toffee-making techniques to advanced flavor experimentation.

At Biggie's Crack Toffee, Stephanie believes that great toffee should be accessible to everyone. Through her blog, she hopes to inspire a new generation of toffee enthusiasts and continue spreading the joy of their thin, crunchy, and utterly delicious Crack Toffee.