MERCRUISER 71902A1 Front Water Pump Impeller Cover 71904A1 470 488 3.7L 4CYL

( Brand: Mercruiser ), ( Part Type: Cover Pump Impeller ), ( Manufacturer Part Number: 71902A1 71904A1 71902 71904 )

Review MERCRUISER 71902 71904 470 488 190 3.7l 4cyl Front Water Pump Impeller Cover

Introducing the Mercruiser 71902A1, 71904A1, 71902, 71904, 470, 488, 190, 3.7L, 4-cylinder Front Water Pump Impeller Cover, a crucial component of your MerCruiser marine engine's cooling system. This impeller cover is designed to protect the impeller and seal against water leaks, ensuring optimal engine performance.

The Mercruiser 71902A1, 71904A1, 71902, 71904 water pump impeller cover is engineered to fit MerCruiser 4-cylinder engines with a displacement of 3.7 liters. It is specifically designed for the water pumps with part numbers 470, 488, 190, and comes in two variant, 71902A1 and 71904A1, which may differ in certain design features or materials.

This impeller cover is made from a durable and high-quality material, providing excellent resistance to corrosion and wear. Its design ensures a secure and snug fit on the engine, preventing water intrusion and keeping the impeller protected.

The impeller cover features a smooth, streamlined shape that minimizes drag and maximizes water flow through the cooling system. Its interior surface is engineered to provide an optimal sealing surface for the impeller, ensuring a tight seal and preventing leaks.

The Mercruiser 71902A1, 71904A1, 71902, 71904 water pump impeller cover is easy to install and requires no special tools or mechanical expertise. Simply remove the old impeller cover, clean the mating surfaces, and install the new cover in its place, securing it with the provided fasteners.

In summary, the Mercruiser 71902A1, 71904A1, 71902, 71904, 470, 488, 190, 3.7L, 4-cylinder Front Water Pump Impeller Cover is an essential component of your MerCruiser marine engine's cooling system, designed to protect the impeller and seal against water leaks. Its durable construction, streamlined shape, and easy installation make it an ideal choice for boat owners looking to maintain the optimal performance of their engine.

Mercruiser 71902A1/71904A1/71902/71904 470 488 190 3.7L 4cyl Front Water Pump Impeller Cover: Pros, Cons, and Conclusion

The Mercruiser 71902A1, 71904A1, 71902, and 71904 are interchangeable front water pump impeller covers for Mercruiser 470, 488, 190, and 3.7L 4-cylinder engines. In this discussion, we will outline the potential advantages and disadvantages of purchasing this product to help you make an informed decision.

1. OEM part: This impeller cover is a genuine Mercruiser part, ensuring compatibility and reliability with your engine.

2. Improves engine performance: A worn or damaged impeller cover can negatively impact engine performance. Replacing it with a new one can help restore optimal performance.

3. Easy installation: The impeller cover is relatively simple to replace, making it a DIY-friendly project for many boat owners.

4. Enhances engine appearance: A new impeller cover can give your engine a fresh and clean look.

1. Potential for fitment issues: While the cover is designed to fit multiple engine models, there is a possibility of fitment issues. Be sure to verify compatibility before purchasing.

2. Cost: Compared to some aftermarket alternatives, the OEM impeller cover may be more expensive.

3. Availability: Depending on your location and Mercruiser's inventory levels, you may experience delays in receiving the part.

When considering the purchase of a Mercruiser 71902A1/71904A1/71902/71904 front water pump impeller cover, it is essential to weigh the pros and cons. The OEM part's reliability, compatibility, and potential for improved engine performance are significant advantages, while the cost and potential fitment issues may be disadvantages. Ultimately, if you value the peace of mind that comes with using a genuine Mercruiser part and are experiencing issues with your current impeller cover, the benefits may outweigh the costs. If you're looking for a more cost-effective alternative, you may want to explore aftermarket options.

If you are confident in the part's compatibility with your engine and are willing to pay the premium for a genuine Mercruiser impeller cover, we recommend purchasing it from a reputable marine parts supplier. If cost is a significant concern, consider exploring aftermarket options, but be sure to verify their compatibility and reliability before making a purchase.

Details:

For the most part it seems these parts were used from 1976 1989 on pretty much all of 470 model's. Make sure to purchase new gasket set if you're doing this type of installation Purchase 27-68714A7. Impeller Cover 71902A1 / 71902

Parts Included. Item Details. Overall Good Condition. 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 Alpha One 470 4-cyl 165hp 170hp 180hp 190hp 3.7L 3.7LX 224CID 488 485 Stern drive.

part #: 71902a1 prices

• $15.00-$80.00

specifications vesselveep:

• brand: Mercruiser
• part type: Cover Pump Impeller
• manufacturer part number: 71902A1 71904A1 71902 71904

returns vesselveep:

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

seller vesselveep:

• rating: 100.0%
• city: Byron Center, Michigan
• # reviews: 5877

shipping vesselveep:

• class: Standard, Expedited
• transit: 2-7 Days
• type: Fixed
• service: USPS Ground Advantage, USPS Priority Mail
• cost: $17.80
• carrier: USPS

payments vesselveep:

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

offer vesselveep:

• availability: In Stock
• started: May 21, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

general vesselveep:

• condition: Used
• Parts Accessories > Boat Parts > Other

Mercruiser 71902A1 Is Similar To:

• Mercury 887847a01 New Mercruiser Quicksilver Oem Part Cover Kit (30.6% similar) New mercury Mercruiser quicksilver oem part # 887847A01 cover kit shipping 4.97...(June 9th, 2024)
• Jabsco 43210-0001 Water Pump Fits Mercruiser Bronze Raw Inboard Engines (25.8% similar) This was a carry aboard spare pump with newer impeller. Raw water pump. Also new impeller...(June 14th, 2024)
• Mercury 93423-1 Mercruiser 93423 1 Used Genuine Oem Quicksilver Water Pickup Insert Set (39.1% similar) Mercruiser 93423 1 used genuine oem mercury quicksilver water pickup insert set. This part is a set that includes the bolt and nut...(June 19th, 2024)
• Mercruiser 61000004p Alpha 1 Gen 2 Transom Assembly Used With Cylinders Nice Fresh Water (34.1% similar) Comes with all in the pics. In good used shape. Used alpha 1 gen 2 transom assembly...(June 20th, 2024)
• Mercury Marine Mercruiser Lss-1235 Oem Water Pump Impeller Kit 46-807151a14 (43.3% similar) This is a factory original equipment item, not aftermarket. Genuine mercury marine / Mercruiser water pump impeller kit. Condition note: for parts only. Hardware only included. Photos contain all that is included...(June 28th, 2024)
• Mercury 36405 Oem Mercruiser Quicksilver Oil Pump Assy-oil (29.3% similar) ...(June 28th, 2024)
• Mercruiser 32-86907a1 23-28055 32517 Alpha One Gimbal Housing Water Tube Cover Bushing 5 8 Inch (43.9% similar) 32-86907 gimbals housing water tube suitable replacement for 32-32631 / 32-86097A1. 23-28055 water tube sealing rubber bushing. Just a short list below. Part numbers included. These are used parts. Used parts may have cosmetic issues scratches, missing paint, faded plastic, pitting...(July 30th, 2024)
• Mercruiser 99798a18 96 Year 42673-c1 140hp 3.0l Water Exhaust Manifold Mercarb Assembly (39.1% similar) 96 year Mercruiser 42673-C1 140HP 3.0L water exhaust manifold Markab assembly...(August 3rd, 2024)
• Mercruiser 32-52519-14 32-90494 Pressure Power Steering Line Hose Pump To Rack 58 Inch (36% similar) From pump to rack roughly 58 pressure hose. Has no issues to operate properly...(August 3rd, 2024)
• Mercruiser 18-2381 28400 94998a4 Alpha One Top Cover Assembly Oem (39.5% similar) Mercruiser alpha one top cover assembly oem 18-2381 28400 94998A4. Large items ship via FedEx or ups ground. Items less then 1 lbs ship USPS first class...(August 16th, 2024)
• Mercury Merc-832021a Oem Mercruiser Pump Kit-t Part 832021a 7 (23.4% similar) Oem mercury Mercruiser pump kit-t part #832021A condition is used. Shipped with FedEx ground or home delivery...(August 17th, 2024)