MELLING MEL-M-81A Oil Pump 150/2.5L 83-02 242/4.0L 87-06 258/4.2L 81-90

( Brand: Melling ), ( Manufacturer Part Number: MEL-M-81A ), ( Part Type: Oil Pump )

Review MELLING Oil Pump Jeep 150/2.5l 83-02 242/4.0l 87-06 258/4.2l 81-90

Melling Mel-M-81A Oil Pump for Jeep 150/2.5L (83-02), 242/4.0L (87-06), 258/4.2L (81-90)

The Melling Mel-M-81A oil pump is an excellent upgrade for Jeep owners with 150/2.5L (1983-1982), 242/4.0L (1987-2006), or 258/4.2L (1981-1990) engines. Designed to provide superior performance and durability, this oil pump is an essential component for enhancing the overall functionality of your Jeep's powertrain.

The Mel-M-81A oil pump is a gear-driven, cast aluminum unit that delivers oil under high pressure to the engine. It features an efficient design with a larger gear diameter, which results in increased oil flow rates and reduced stress on the gears. This design upgrade also reduces heat generation, ensuring a longer lifespan for the oil pump and contributing to an overall cooler operating temperature for your engine.

This oil pump also incorporates a unique, patented split-vane design for the pickup. This design provides excellent oil pickup in the pan, even during aggressive driving conditions or when the vehicle is operating at an angle. The split-vane design also minimizes the risk of cavitation, ensuring that the engine always receives an adequate supply of oil for optimal performance.

The Mel-M-81A oil pump comes with a high-performance, billet steel drive gear. This durable component provides increased strength and reduces the risk of breakage, a common issue with stock oil pump gears. The drive gear is also machined to exacting tolerances, ensuring a precise fit and smooth operation.

Installation of the Melling Mel-M-81A oil pump is straightforward, with no major modifications required. This upgraded oil pump is a direct replacement for the stock unit and is compatible with both automatic and manual transmission applications.

In summary, the Melling Mel-M-81A oil pump is an essential upgrade for Jeep owners with 150/2.5L, 242/4.0L, or 258/4.2L engines. Its efficient design, increased durability, and improved oil flow rates make it a valuable investment for those seeking enhanced performance and reliability from their Jeep's powertrain.

Melling Mel-M-81A oil pumps are aftermarket options designed to provide improved performance and durability for Jeep models with 150/2.5L, 242/4.0L, 258/4.2L engines, manufactured between 1983 and 1990. Here are some potential pros and cons of buying this oil pump:

1. Enhanced durability: Melling Mel-M-81A oil pumps are known for their robust construction and high-quality materials. This can lead to a longer lifespan and fewer replacement needs.

2. Improved flow rate: This oil pump may offer a higher flow rate compared to the original unit. This can ensure that your engine receives an adequate supply of oil, which can enhance performance and longevity.

3. Better cooling: The design and construction of the Melling Mel-M-81A oil pump can lead to improved cooling, which can help maintain optimal operating temperatures for your engine.

4. Reduced noise: Some users report that the Melling Mel-M-81A oil pump operates more quietly than the original, which can lead to a more enjoyable driving experience.

1. Cost: Aftermarket oil pumps like the Melling Mel-M-81A can be more expensive than the original equipment, which may deter some buyers.

2. Installation complexity: Installing an aftermarket oil pump like the Melling Mel-M-81A can require additional time, effort, and expertise compared to installing the original unit.

3. Potential compatibility issues: It's essential to ensure that the Melling Mel-M-81A oil pump is compatible with your specific Jeep model and engine configuration. Incorrect installation could lead to various issues.

The Melling Mel-M-81A oil pump can be an attractive option for Jeep owners seeking improved performance, durability, and cooling for their engines. However, it's essential to carefully consider the potential cons, such as cost, installation complexity, and compatibility issues, before making a purchase. Ultimately, if you're confident in your ability to install the pump correctly and are willing to invest in the performance benefits it offers, the Melling Mel-M-81A oil pump may be a worthwhile investment for your Jeep.

Details:

Jeep 4.2L - 258 81-90, With side tab on pump cover plate. Titan Engines. Why waste time installing an old, worn-out oil pump when you can get a brand new Melling replacement at such low cost. They're manufactured from a variety of high-quality materials with all-new components and are individually hand-turned pressure-tested to guarantee that they'll perform as well OEM.

Oil Pump - Melling Jeep 150/2.5L 83-02, 242/4.0L 87-06, 258/4.2L 81-90: Pump, 2.5L 150 4.0L 242 Stock.

part #: melm81a prices

• $79.00-$113.99

specifications motoralph:

• for makes: Jeep
• brand: Melling
• mpn: Mel-m-81a
• part type: Oil Pump

shipping motoralph:

• type: Fixed
• transit: 3-8 Days
• cost: $0.00
• service: Standard
• class: Standard

seller motoralph:

• # reviews: 24683
• rating: 100.0%
• city: Ocala, Florida

returns motoralph:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer motoralph:

• quantity: 1
• availability: In Stock
• started: April 6, 2026
• options: Ship-to-home
• sold: 0

general motoralph:

• Motors > Parts Accessories > Other
• condition: New

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• credit card: Mastercard
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• wallet: Apple-pay