EATON A4678 Oil Pump

( Brand: Eaton ), ( Part Type: Oil Pump ), ( Manufacturer Part Number: A4678 )

Review EATON Oil Pump

The Eaton A4678 oil pump is a critical component of a vehicle's engine system, responsible for maintaining the necessary oil pressure to ensure efficient lubrication of the engine. This particular oil pump is engineered to meet the demands of modern engines, delivering consistent and reliable performance.

The Eaton A4678 oil pump is a gear-driven design, which means it utilizes gears to transfer oil from the sump to the engine. The pump housing is made from a robust, engineered resin material that is resistant to wear and corrosion. The impeller, which is the part of the pump that actually moves the oil, is designed with a high-efficiency profile to maximize oil flow and reduce power consumption.

The pump features a compact design, which allows it to fit into a wide range of applications. It also incorporates a unique billet gear design, which provides increased strength and durability. The billet gears are precision-machined from a solid piece of material, eliminating the need for welding or other joining processes that can weaken the gears over time.

The Eaton A4678 oil pump also includes a built-in bypass valve, which helps to regulate oil pressure and prevent damage to the engine during cold starts or other low-oil pressure situations. The valve opens when the oil pressure drops below a certain threshold, allowing oil to bypass the pump and flow directly to the engine. When the oil pressure returns to normal, the valve closes, ensuring that the oil is pumped efficiently.

Installing the Eaton A4678 oil pump is a straightforward process, and it is compatible with a wide range of engines. The pump comes complete with all necessary hardware, including gaskets and seals, making it a true plug-and-play solution. The pump is also backed by a one-year warranty from Eaton, providing peace of mind for customers.

In summary, the Eaton A4678 oil pump is a high-performance, compact, and durable solution for maintaining proper oil pressure in modern engines. Its unique billet gear design, high-efficiency impeller, and built-in bypass valve make it an excellent choice for those seeking reliable and consistent oil pump performance.

Buying an Eaton A4678 oil pump comes with several pros and cons that are essential to consider before making a purchase.

1. Durability: The Eaton A4678 oil pump is known for its robustness and reliability. It is designed to withstand high temperatures and heavy loads, making it an ideal choice for high-performance engines.

2. Efficiency: This oil pump delivers oil efficiently to the engine, ensuring that it receives the necessary lubrication to operate smoothly.

3. Easy Installation: The Eaton A4678 oil pump is relatively easy to install compared to other oil pumps. It comes with clear instructions and can be installed in a few hours with basic tools.

1. Cost: The Eaton A4678 oil pump is more expensive than some other oil pumps in the market. However, its durability and efficiency make it a worthwhile investment for high-performance engines.

2. Compatibility: This oil pump is specifically designed for certain engine models, and it may not be compatible with all engines. Before making a purchase, it is essential to ensure that it is the correct oil pump for your engine.

3. Availability: Due to its popularity among high-performance engine enthusiasts, the Eaton A4678 oil pump may be hard to find in local auto parts stores. It is recommended to order it from a trusted online retailer to ensure availability.

In conclusion, the Eaton A4678 oil pump offers several advantages, including durability, efficiency, and easy installation. However, it comes with a higher cost and may not be compatible with all engine models. Considering these pros and cons, if you have a high-performance engine that requires a reliable and efficient oil pump, the Eaton A4678 is an excellent investment. Otherwise, it may be worth considering other, more affordable options.

Details:

Engineered using the latest technology to ensure product lasts longer in service. Made of high-quality components for durability, reliability, and performance. Manufactured following strict OE standards to work like the original component. A4678 Oil Pump for Eaton: Part Number: Manufacturer: Eaton.

Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. Designed specifically for trucks, trailers, and buses.

part #: a4678 prices

• $399.99-$1424.39

specifications pumppruner:

• brand: Eaton
• part type: Oil Pump
• manufacturer part number: A4678

offer pumppruner:

• sold: 0
• best offers: True
• quantity: 1
• started: February 15, 2026
• options: Ship-to-home
• availability: In Stock

seller pumppruner:

• rating: 99.2%
• # reviews: 64913
• city: Los Angeles, California

shipping pumppruner:

• transit: 5-9 Days
• class: Standard
• type: Fixed
• cost: $0.00
• service: Standard

general pumppruner:

• Car Truck Parts Accessories > Engines Engine Parts > Oil Pumps Parts
• condition: New

returns pumppruner:

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

payments pumppruner:

• other
• wallet: Paypal
• credit card: Diners-club

Eaton A4678 Is Similar To:

• Hobourn-eaton 5975 Hobourn-eaton Adc1 Oil Pump No Gear Drive For Mg triumph Cars Used R11ta (33% similar) You are only buying what is pictured or related to the. Hobo urn-eaton 5975 ADC1 oil pump no gear drive for mg/triumph cars used R11TA R11TA: image. R11TA, RT0724. For sale is one 1, hobo urn-eaton 5975 ADC1 oil pump no gear drive mg/triumph cars used, item used and in good...(August 1st, 2024)
• Hobourn Eaton He10148 Triumph Tr6 Original Oil Pump Assembly he10148 Used Kt997 (33.6% similar) Currently listing 40 years of accumulated British Italian car parts and other treasures. Triumph TR6 original hobo urn Eaton oil pump assembly, used...(August 29th, 2024)
• Hobourn-eaton He6016 Aftermarket Jaguar Xke Series 1 2 Xk150 Oil Pump C21765 Oem (30.8% similar) For sale is this aftermarket jaguar Xe series 1/2 XK150 oil pump C21765 oem, oem original. Just the side cover for f1 hydraulic transmission pump. Review the pictures, read , and make sure that this is right part for your vehicle. Please review all the photos for overall condition...(March 31st, 2025)
• Eaton 596379 Original Mg Mgb Hobourn-eaton Oil Pump With Gear Screen Pt (39.6% similar) What I have here for sale is an original mg GB hobo urn-eaton oil pump w/ gear screen. Not sure exactly what years or model's it fits engine, clean old used part. A little surface rust by screen round thing, picture is actual items. Shipping is for insured USPS or FedEx ground service with...(July 11th, 2025)
• Hobourn-eaton 5975-adc3 Original Mg Triumph Hobourn-eaton 5975 Adc3 Oil Pump Without Pickup Or Gear Drive 7a (27.3% similar) Used, good condition, see pictures...(December 31st, 2025)
• Eaton K3367b Transmission Oil Pump Kit Rto rtof Series For (51.2% similar) Made of high-quality components for durability, reliability, and performance. Engineered using the latest technology to ensure product lasts longer in service. Designed specifically for trucks, trailers, and buses. Manufactured following strict OE standards to work like the...(February 20th, 2026)
• Hobourn-eaton 5975-adc4 Original Mg Triumph Hobourn-eaton 5975 Adc4 Oil Pump Without Pickup Or Gear Drive (27.9% similar) The item may have some signs of cosmetic wear. Item may have an inventory sticker on box or item that can't be seen in photo. Original mg triumph hobo urn-eaton 5975 ADC4 oil pump w/o pickup or gear drive, untested, for parts repair only unit was previously used. Please feel free to ask...(February 28th, 2026)