MERCURY 42796 Gm Engine Oil Pump 5.7 260 V8

( Manufacturer Part Number: 42796 ), ( Part Type: Oil Hp Engine Pump ), ( Country Of Origin: United States )

Review MERCURY 5.7 260 Hp V8 Gm Engine Oil Pump fits MERCRUISER MARINE 350 1984

The Mercury 42796 Marine Engine Oil Pump is an essential component for the smooth operation of your 84 Mercruiser, 5.7 Liter, 350 cubic inch, 260 HP V8 GM marine engine. This high-performance oil pump is meticulously engineered to ensure an adequate supply of clean oil to your engine, maintaining optimal lubrication and extending engine life.

Crafted from robust materials, this oil pump features a durable cast iron housing that offers excellent resistance to the harsh marine environment. Its internal components are manufactured using top-grade materials, including hardened steel impeller and housing, to withstand the demanding conditions of continuous marine use.

The Mercury 42796 Oil Pump is designed to meet the specific needs of the 5.7 Liter GM marine engine. Its precise fit and compatibility ensure a secure installation, minimizing the risk of leaks and preventing potential oil loss. This oil pump comes with a pre-assembled pickup tube and a built-in bypass valve, which further simplifies the installation process.

One of the standout features of this oil pump is its efficient design. The impeller is optimally sized and shaped to deliver the required oil pressure and flow rate while minimizing power consumption. This not only helps maintain engine performance but also contributes to improved fuel efficiency and reduced engine stress.

This Mercury oil pump is also designed to be easy to maintain, ensuring that regular servicing is hassle-free. It features a conveniently located drain plug, which makes oil changes quick and straightforward. Additionally, its robust construction ensures that it can handle the rigors of marine use without requiring frequent repairs or replacements.

In summary, the Mercury 42796 Marine Engine Oil Pump is an indispensable upgrade for your 84 Mercruiser, 5.7 Liter, 350 cubic inch, 260 HP V8 GM marine engine. Its durable construction, efficient design, and ease of maintenance make it an excellent choice for those seeking reliable, long-lasting performance from their marine engine.

Mercury 42796 84 Mercruiser 5.7 350 260 HP V8 GM Marine Engine Oil Pump: Pros, Cons, and Concluding Recommendation

Mercury 42796 is a marine engine oil pump designed specifically for 84 Mercruiser 5.7 350 260 HP V8 GM marine engines. Here are some potential advantages and disadvantages of purchasing this oil pump:

1. Designed for Specific Application: This oil pump is engineered for compatibility with the mentioned MerCruiser engine model, ensuring a precise fit and optimal performance.

2. Enhanced Durability: The pump features heavy-duty materials and robust construction to withstand the demanding marine environment.

3. Improved Oil Circulation: Efficient oil pump design ensures proper lubrication and cooling for the engine, prolonging its life.

4. OEM (Original Equipment Manufacturer) Replacement: Using an OEM oil pump ensures that all components meet the manufacturer's specifications, potentially reducing the need for further repairs or replacements.

1. Cost: Original equipment replacement parts, like this oil pump, can be more expensive compared to aftermarket alternatives.

2. Limited Availability: OEM parts may not be as easily accessible as aftermarket parts, potentially causing delays in securing the necessary repair component.

3. Longer Installation Time: Due to the specificity of the part, installation may take longer than with a universal aftermarket part.

When considering the purchase of a Mercury 42796 marine engine oil pump for a 84 Mercruiser 5.7 350 260 HP V8 GM marine engine, it is essential to weigh the advantages and disadvantages carefully. If prioritizing optimal performance, durability, and peace of mind, investing in an OEM oil pump may be the best choice. However, if budget and availability are primary concerns, an aftermarket alternative could be a viable option. Ultimately, the decision depends on the individual's specific circumstances and priorities.

Details:

Shelf 25-4-4-C. Condition: Good used condition. Thanks -Mike. Part was removed from a 1984 MerCruiser 5.7 L 260 Hp Marine engine.

Mounting hardware is only included if it shown in the pictures. What you see in the pictures is what get. I will do my best to resolve the issue. Please look at all pictures and read entire before buying.

Look at pictures closely and ask any questions, I try to describe parts as best can.

part #: 42796 prices

• $15.20-$175.00

specifications otsterndriv:

• for models: Marine, 350, Mercruiser
• for makes: Mercury
• for years: 1984
• mpn: 42796
• part type: Oil Hp Engine Pump
• country of origin: United States

general otsterndriv:

• Boat Parts > Sterndrive Motors Components > Other
• condition: Used

offer otsterndriv:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: November 20, 2025
• availability: In Stock

returns otsterndriv:

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

seller otsterndriv:

• city: Huron, Ohio
• rating: 99.5%
• # reviews: 112874

payments otsterndriv:

• other
• credit card: Diners-club
• wallet: Google-pay

shipping otsterndriv:

• service: FedEx Ground / FedEx Home Delivery, USPS Ground Advantage, USPS Priority Mail
• class: Standard, Expedited
• type: Calculated
• cost: $21.65
• transit: 2-6 Days
• carrier: FedEx, USPS

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