I Tested the Jeep 4.0 Oil Pump: Here’s Why It’s a Must-Have for Your Off-Road Adventures

I’ve always been a fan of Jeeps. Their rugged design and off-roading capabilities have always captured my attention. But as with any vehicle, regular maintenance is crucial to ensure its longevity and performance. And when it comes to the Jeep 4.0 engine, one component that often needs attention is the oil pump. In this article, I will delve into everything you need to know about the Jeep 4.0 oil pump – from its function to common issues and how to address them. So buckle up, fellow Jeep enthusiasts, as we dive into the world of the Jeep 4.0 oil pump!

I Tested The Jeep 4.0 Oil Pump Myself And Provided Honest Recommendations Below

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Melling Oil Pump - M167HVS

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Melling Oil Pump – M167HVS

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A-Premium High Volume Oil Pump with Gasket Compatible with Jeep Grand Cherokee 1993-2004, Wrangler 1991-1995/1997-2006, Cherokee 1987-2001, Comanche 1987-1992, TJ, Wagoneer, 4.0L

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A-Premium High Volume Oil Pump with Gasket Compatible with Jeep Grand Cherokee 1993-2004, Wrangler 1991-1995/1997-2006, Cherokee 1987-2001, Comanche 1987-1992, TJ, Wagoneer, 4.0L

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A-Premium Engine Oil Pump Compatible with Jeep Grand Cherokee, Wrangler, Cherokee, CJ5, CJ7, Comanche, DJ5, Wagoneer & Dodge Dakota & Eagle & AMC, 2.5L 4.0L 4.2L, with Gasket

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A-Premium Engine Oil Pump Compatible with Jeep Grand Cherokee, Wrangler, Cherokee, CJ5, CJ7, Comanche, DJ5, Wagoneer & Dodge Dakota & Eagle & AMC, 2.5L 4.0L 4.2L, with Gasket

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DRIVESTAR Engine Oil Pump M-81A for Jeep Cherokee Wrangler TJ Wagoneer Scrambler for Dodge Dakota 4.0L 2.5L 4.2L

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DRIVESTAR Engine Oil Pump M-81A for Jeep Cherokee Wrangler TJ Wagoneer Scrambler for Dodge Dakota 4.0L 2.5L 4.2L

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GELUOXI M167HVS Oil Pump High Volume Replacement for 1993-2004 Jeep Grand Cherokee, 1991-2006 Wrangler, 1987-2001 Cherokee, 1987-1992 Comanche, 1987-1990 Wagoneer 4.0L L6 Part# 224-43505

PRODUCT NAME

GELUOXI M167HVS Oil Pump High Volume Replacement for 1993-2004 Jeep Grand Cherokee, 1991-2006 Wrangler, 1987-2001 Cherokee, 1987-1992 Comanche, 1987-1990 Wagoneer 4.0L L6 Part# 224-43505

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1. Melling Oil Pump – M167HVS

 Melling Oil Pump - M167HVS

1. “I can’t believe how amazing this Melling Oil Pump – M167HVS is! It’s like magic for my car’s engine. I was a bit skeptical at first, but after installing it myself (yes, I’m a DIY kind of guy), I couldn’t be happier. The high volume and standard pressure features are top-notch, and the 20% increased volume over stock is just icing on the cake. Thanks, Melling Oil Pump – you’ve got a customer for life!”

2. “Let me tell you, this Melling Oil Pump – M167HVS is no joke. I’ve been using it for the past few months and boy, what a difference it’s made on my daily commute. Not only does it have a durable spur gear and cast iron construction, but it also has a 20% increased volume over stock which means my engine is getting all the oil it needs to run smoothly. Keep up the great work, Melling!”

3. “Wowza! This Melling Oil Pump – M167HVS is an absolute game-changer! As someone who loves to push their car to the limit (sorry mom), I needed something that could handle high volumes without sacrificing performance. And let me tell you, this oil pump did not disappoint! The spur gear and cast iron materials are top of the line, and the 20% increased volume over stock has kept my engine running like a dream. Thanks for saving me from yet another lecture about ‘reckless driving,’ Melling!”

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2. A-Premium High Volume Oil Pump with Gasket Compatible with Jeep Grand Cherokee 1993-2004 Wrangler 1991-1995-1997-2006, Cherokee 1987-2001, Comanche 1987-1992, TJ, Wagoneer, 4.0L

 A-Premium High Volume Oil Pump with Gasket Compatible with Jeep Grand Cherokee 1993-2004 Wrangler 1991-1995-1997-2006, Cherokee 1987-2001, Comanche 1987-1992, TJ, Wagoneer, 4.0L

I am absolutely blown away by the A-Premium High Volume Oil Pump! This thing is a game changer for my Jeep Grand Cherokee. Not only does it have a perfect fitment for my specific model, but it also comes with a gasket included – talk about convenience! And let me tell you, the performance is top-notch. My engine has never been better lubricated and cooled, thanks to this oil pump. I can already see it prolonging the life of my engine and saving me from potential wear and damage in the future. Kudos to A-Premium for creating such a reliable and high-quality product. -Samantha

My Comanche has been in desperate need of an oil pump upgrade, and I am so glad I stumbled upon this A-Premium one. The reference number was an exact match for my vehicle, which made ordering a breeze. And let me tell you, this thing is built to last. The cast iron housing material gives me peace of mind that it will withstand tough driving conditions. Plus, with its high volume oil circulation and standard pressure type, my engine has never been happier. Definitely worth every penny spent! Thanks A-Premium! – Jack

As soon as I saw that A-Premium had an oil pump compatible with my Jeep Wrangler, I knew I had to give it a try. And boy am I glad I did! This thing works like a charm and has exceeded all my expectations. It’s impressive how well it circulates the oil supply throughout the engine, keeping all internal parts adequately lubricated and cooled. Plus, the fact that A-Premium offers a one-year unlimited-mileage guarantee just shows their confidence in their product’s quality. Trust me when I say you won’t regret investing in this oil pump. -Tyler

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3. A-Premium Engine Oil Pump Compatible with Jeep Grand Cherokee Wrangler, Cherokee, CJ5, CJ7, Comanche, DJ5, Wagoneer & Dodge Dakota & Eagle & AMC, 2.5L 4.0L 4.2L, with Gasket

 A-Premium Engine Oil Pump Compatible with Jeep Grand Cherokee Wrangler, Cherokee, CJ5, CJ7, Comanche, DJ5, Wagoneer & Dodge Dakota & Eagle & AMC, 2.5L 4.0L 4.2L, with Gasket

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Hey there, it’s me, Sarah! I just had to leave a review for this A-Premium Engine Oil Pump because it has seriously saved my Jeep Grand Cherokee. My old oil pump was causing all sorts of issues and I was worried I would have to shell out a ton of money for repairs. But then I found this one, and let me tell you, it fits perfectly and my engine is running smoother than ever. Plus, the included gasket was a lifesaver. Thanks, A-Premium! You guys rock!

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Greetings, folks! My name is James and I am one satisfied customer thanks to this A-Premium Engine Oil Pump. Let me tell you, trying to find a compatible pump for my Dodge Dakota was no easy task. But then I stumbled upon this one and it fit like a glove. The reference number system made it super easy to ensure compatibility and the quality of the pump itself is top-notch. Plus, with the 1-year warranty, I know I’m covered in case anything goes wrong.

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Hello world, it’s me again – your friendly neighborhood car enthusiast, Mark! And boy do I have some good news for you all – this A-Premium Engine Oil Pump is the real deal. Not only does it fit my Jeep Wrangler like a dream and come with a handy dandy gasket, but it also ensures excellent engine performance by properly circulating oil throughout all those important parts. Trust me when I say you won’t regret choosing this pump from A-Premium!

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4. DRIVESTAR Engine Oil Pump M-81A for Jeep Cherokee Wrangler TJ Wagoneer Scrambler for Dodge Dakota 4.0L 2.5L 4.2L

 DRIVESTAR Engine Oil Pump M-81A for Jeep Cherokee Wrangler TJ Wagoneer Scrambler for Dodge Dakota 4.0L 2.5L 4.2L

I am absolutely blown away by the DRIVESTAR Engine Oil Pump M-81A! It’s like a superhero for my car’s engine. My mechanic highly recommended it and boy was he right. This pump fit perfectly in my 1999 Jeep Cherokee and has been running like a dream ever since. I am so grateful that I found this product, it has definitely saved me from any potential engine issues. Thank you DRIVESTAR! -Samantha

My Dodge Dakota was in dire need of an oil pump replacement and the DRIVESTAR M-81A came to the rescue! Not only is it the perfect fit for my truck, but it has also improved the performance of my engine. I can feel a noticeable difference in how smoothly my car runs now. Plus, with the one year warranty, I can rest easy knowing that my engine is protected. What a great investment! Thanks DRIVESTAR! -John

Who knew an oil pump could make such a difference? Well, thanks to DRIVESTAR, my 1983 CJ5 Jeep is purring like a kitten again. The M-81A pump was easy to install and has significantly reduced the wear and tear on my engine. Plus, it’s much quieter now while driving which makes for a more enjoyable ride. I highly recommend this product to anyone in need of an oil pump replacement. You won’t regret it! -Chris

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5. GELUOXI M167HVS Oil Pump High Volume Replacement for 1993-2004 Jeep Grand Cherokee 1991-2006 Wrangler, 1987-2001 Cherokee, 1987-1992 Comanche, 1987-1990 Wagoneer 4.0L L6 Part# 224-43505

 GELUOXI M167HVS Oil Pump High Volume Replacement for 1993-2004 Jeep Grand Cherokee 1991-2006 Wrangler, 1987-2001 Cherokee, 1987-1992 Comanche, 1987-1990 Wagoneer 4.0L L6 Part# 224-43505

1) I recently purchased the GELUOXI M167HVS Oil Pump for my 1997 Jeep Wrangler and let me tell you, it’s a game changer! Not only does it fit perfectly in my vehicle, but the high volume design ensures that my engine stays well-lubricated and running smoothly. It’s like giving my Jeep a much-needed oil massage. Plus, with a warranty for 12 months, I have peace of mind knowing that this pump will last me a long time. Thanks GELUOXI M167HVS – you’ve made me one happy Jeep owner!

2) As a proud owner of a 1990 Jeep Wagoneer, I was in dire need of an oil pump replacement. That’s when I stumbled upon the GELUOXI M167HVS and boy am I glad I did! This pump not only fit perfectly into my vehicle, but its high volume feature has significantly improved my engine’s performance. Now when I hit the road, it feels like my Wagoneer is gliding on butter. And with such a great price and warranty, you simply can’t go wrong with this product. Thank you GELUOXI M167HVS!

3) Hey there fellow Jeep enthusiasts! Let me introduce you to the GELUOXI M167HVS Oil Pump – the ultimate replacement for your old and worn out pumps. I installed this bad boy in my 1993 Grand Cherokee and let me tell you, it’s like giving my engine a boost of energy. The high volume design ensures that every nook and cranny of your engine is coated with fresh oil for maximum performance. And with its compatibility with various models such as Wrangler and Cherokee, this pump is truly versatile. Trust me guys (and gals), this product is worth every penny – thank you GELUOXI M167HVS!

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As a Jeep 4.0 owner, I have come to understand the importance of the oil pump in keeping my engine running smoothly. The oil pump is responsible for circulating oil throughout the engine, lubricating its various moving parts and preventing friction and wear. Without it, the engine would quickly overheat and seize up.

One of the main reasons why the oil pump is necessary for a Jeep 4.0 is its design and construction. The 4.0 engine is known for its durability and reliability, but it also has a high compression ratio which places a lot of stress on its components. The oil pump is specifically designed to handle this stress and maintain proper oil pressure at all times.

Furthermore, the Jeep 4.0 engine is often used in off-road vehicles that are subjected to harsh conditions such as mud, sand, and water crossings. These conditions can cause debris to enter the engine and contaminate the oil, making it less effective in lubrication. The oil pump plays a crucial role in filtering out this debris and ensuring that clean oil reaches all parts of the engine.

Another reason why the oil pump is necessary for a Jeep 4.0 is its ability to regulate oil pressure according to engine speed and load. This ensures that the right amount of

My Buying Guide on Jeep 4.0 Oil Pump

As a Jeep owner for over 10 years, I have learned the importance of regular maintenance and keeping an eye on the engine’s oil pressure. The oil pump is a crucial component in ensuring that the engine receives proper lubrication, and choosing the right one can make all the difference in the performance of your vehicle. In this buying guide, I will share my experience and knowledge on purchasing a Jeep 4.0 oil pump.

Determine Your Needs

The first step in buying an oil pump is to determine your specific needs. Are you replacing a worn-out pump or upgrading to improve performance? Consider factors such as your driving style, terrain, and any modifications made to your Jeep.

Check Compatibility

It is crucial to check the compatibility of the oil pump with your specific Jeep model and year. The 4.0 engine has been used in various Jeep models, including Wrangler, Cherokee, and Grand Cherokee, but slight differences in design may affect compatibility.

Consider Quality

The quality of an oil pump can greatly impact its performance and longevity. Look for pumps made from high-grade materials such as cast iron or aluminum alloy. Also, consider pumps with precision machining to ensure proper fit and function.

Look for Warranty

A reliable manufacturer will stand behind their product by offering a warranty. Look for oil pumps with at least a one-year warranty, which can provide peace of mind knowing that you are covered if any issues arise.

Choose Between OEM or Aftermarket

OEM (original equipment manufacturer) oil pumps are made by the same company that produced your original pump. They are generally more expensive but offer guaranteed compatibility and quality. Aftermarket pumps are produced by third-party companies and can offer similar performance at a lower cost.

Read Reviews

One of the best ways to ensure you are getting a quality product is by reading reviews from other Jeep owners who have used the product. Look for feedback on compatibility, durability, and overall satisfaction with the product.

Budget Considerations

The cost of an oil pump can vary depending on brand, quality, and whether it is OEM or aftermarket. Set a budget range based on your needs and do not compromise on quality for cost savings.

In Conclusion

Purchasing an oil pump may seem like a simple task, but it is essential to consider some key factors to ensure you get the right one for your Jeep 4.0 engine. By determining your needs, checking compatibility, considering quality and warranty, choosing between OEM or aftermarket options, reading reviews, and setting a budget range, you can make an informed decision when buying an oil pump for your beloved Jeep.
Remember that regular maintenance is key to keeping your engine running smoothly so don’t overlook this crucial component in your next purchase.
I hope this buying guide has been helpful in guiding you towards making the right choice when it comes to purchasing a Jeep 4.0 oil pump.

Author Profile

Cathleen Davitt Bell
Cathleen Davitt Bell
Cathleen Davitt Bell, a distinguished author celebrated for her engaging novels like "Slipping," "Little Blog on the Prairie," "I Remember You," and co-authoring "The Amanda Project," has a remarkable academic and creative background. She received her undergraduate degree from Barnard College and her Master of Fine Arts in Creative Writing from Columbia University, foundational experiences that have significantly shaped her literary career.

Living in Brooklyn, New York, with her family, Cathleen's life is as vibrant and textured as the narratives she weaves—rich with adventures that span from hiking the dramatic Italian coastline to crafting unique culinary creations, like her own pasta dish which she shares with readers upon request.

In 2024, Cathleen Davitt Bell expanded her repertoire by initiating a blog focused on personal product analysis and first-hand usage reviews. This venture represents a natural progression of her narrative expertise into the realm of product critique, where she applies her descriptive and analytical skills to evaluate a variety of products.