1. Boat Outboard Engines To Buy
  2. sku: 23986430062759793
  3. MERCURY FA721706

MERCURY FA721706 Water Pump Base Housing Cover RW721706

fits model: Force. make: Mercury.

Rw721706 Mercury Fa721706 New Oem Force Water Pump Base Housing Cover

( Manufacturer Part Number: FA721706 ), ( Part Type: Cover Pump Housing )

Review MERCURY New Oem Water Pump Base Housing Cover fits FORCE

The **Mercury FA721706 Force RW721706 Water Pump Base Housing Cover** is a precision-engineered component designed to complement the high-performance outboard motors in Mercury s Force series, specifically tailored for the RW721706 model. Crafted from durable, marine-grade materials, this housing cover serves as a critical seal between the water pump and the engine block, ensuring optimal fluid dynamics and structural integrity under demanding operating conditions. Its robust construction minimizes the risk of leaks, vibration-induced wear, and corrosion, which are common concerns in high-performance marine applications where reliability is paramount. The cover features a tight, interference-fit design that aligns seamlessly with the corresponding base housing, providing a secure and leak-proof interface while maintaining the necessary clearance for efficient water flow. Engineered with precision machining, the cover includes critical mounting points and alignment features that ensure proper installation, reducing the potential for misalignment or improper sealing both of which could compromise performance or lead to costly repairs. Whether deployed in recreational fishing boats, speedboats, or high-performance yachts, this component is built to withstand the rigors of saltwater exposure, thermal cycling, and continuous operation, making it an indispensable part of Mercury s Force outboard lineup. Its compatibility with the RW721706 model ensures seamless integration with the existing water pump assembly, allowing for straightforward maintenance and easy replacement when necessary. For marine enthusiasts and professionals seeking dependable performance and longevity, the FA721706 housing cover is a testament to Mercury s commitment to engineering components that balance durability with performance.

### Pros and Cons of buying a Mercury FA721706 (Force RW721706) Water Pump Base Housing Cover

#### **Pros:**

1. **Compatibility** This part is specifically designed for Mercury outboard engines, particularly the Force series (RW721706). It ensures a proper fit, reducing the risk of leaks or misalignment, which can be common with aftermarket or generic replacements.

2. **Durability** Mercury outboard components are generally built to high standards, using materials like aluminum or reinforced plastics that resist corrosion and wear over time. This part is likely to last as long as the original if installed correctly.

3. **Performance Reliability** A properly functioning water pump base housing cover helps maintain optimal cooling and lubrication for the engine. A failing or leaking cover can lead to overheating or water ingress, which may damage internal components.

4. **Ease of Installation** Since it s an OEM (Original Equipment Manufacturer) or high-quality aftermarket part, it should align well with the engine s existing components, making installation straightforward for those with basic mechanical skills. Mercury often provides clear instructions or diagrams for replacement.

5. **Warranty Coverage** If purchased from an authorized dealer or a reputable supplier, this part may come with a warranty, offering peace of mind against defects. Mercury s warranties typically cover manufacturing issues for a set period.

6. **Preventative Maintenance** Replacing a worn or damaged cover as part of routine maintenance can prevent more costly repairs down the line, such as engine damage from overheating or corrosion.

7. **Resale Value** Keeping the boat s engine in good condition with genuine or high-quality parts can help maintain its resale value, as potential buyers will appreciate well-maintained equipment.

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#### **Cons:**

1. **Cost** Compared to generic or aftermarket alternatives, this part may be more expensive. The price reflects Mercury s brand reputation and the quality of materials used. For budget-conscious buyers, this could be a drawback.

2. **Limited Availability** Depending on the region or supplier, finding this specific part may require ordering online or visiting a specialized marine parts store. Some smaller dealers might not stock it, requiring extra effort to source.

3. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., unverified online marketplaces) risks receiving counterfeit or low-quality replicas. Always buy from authorized dealers or reputable suppliers to avoid this issue.

4. **Installation Complexity** While the part itself is designed for easy installation, the process may require removing other components (e.g., the lower unit or trim tabs) to access the water pump. Those without mechanical experience may need professional help, adding to the cost.

5. **Overkill for Minor Issues** If the cover is only slightly damaged or worn, a full replacement might be unnecessary. In such cases, a repair kit or a less expensive alternative could suffice, making this purchase less cost-effective.

6. **Environmental and Disposal Concerns** Like many marine parts, this component may contain materials that are not easily recyclable. Buyers should consider proper disposal methods or recycling options to minimize environmental impact.

7. **Time-Consuming Replacement** Replacing the cover may require removing the engine from the boat (in some cases) or draining the lower unit, which can take several hours. This downtime may be inconvenient for boat owners who rely on their vessels frequently.

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### **Conclusion:**

The Mercury FA721706 (Force RW721706) water pump base housing cover is a high-quality, reliable part that ensures proper engine function and longevity. Its primary advantages lie in its compatibility, durability, and performance benefits, making it a sound investment for maintaining or restoring a Mercury outboard engine. However, the higher cost and potential installation challenges may deter some buyers, particularly those on a tight budget or without mechanical experience.

For most boat owners who prioritize long-term reliability and are willing to invest in genuine parts, this is a **strong recommendation**. If cost is a major concern, it s worth comparing prices from different suppliers or considering aftermarket alternatives (though always verify their quality and compatibility). Additionally, if the part is only partially damaged, exploring repair options could be a more economical choice.

**Final Recommendation:** Purchase the Mercury FA721706 water pump base housing cover if:

- You need a genuine or high-quality replacement for your Force series outboard.

- You re prepared for the installation process or can hire a professional.

- You value the long-term performance and reliability of your engine.

Avoid it if:

- You re on a tight budget and can find a verified aftermarket alternative at a lower cost.

- The damage is minor and a repair or less expensive part would suffice.

- You re unable to source the part easily from a trusted supplier.

Details:

NEW OEM MERCURY FORCE FA721706 RW721706 WATER PUMP BASE HOUSING COVER.

part #: fa721706 prices

  • $100.00-$280.00

specifications ouboaen:

  • for models: Force
  • for makes: Mercury
  • mpn: Fa721706
  • part type: Cover Pump Housing

general ouboaen:

  • condition: New
  • Boat Parts > Outboard Engines Components > Other

payments ouboaen:

  • other
  • credit card: Visa
  • wallet: Apple-pay

shipping ouboaen:

  • service: USPS Ground Advantage
  • type: Calculated
  • class: Standard
  • transit: 5-12 Days
  • carrier: USPS
  • cost: $8.75

offer ouboaen:

  • quantity: 3
  • started: May 16, 2026
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • best offers: True

seller ouboaen:

  • rating: 100.0%
  • # reviews: 54
  • city: Los Angeles, California

returns ouboaen:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for models: force, for makes: mercury, part type: cover pump housing,
category: boat parts > outboard engines components, sku: 23986430062759793,
Mercury FA721706 Is Similar To:
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3 offers $100.00–$280.00 USD
  • New. Offer #1 priced at $280.00 + $8.75 shipping estimate = $288.75* total. OPEN TO OFFERS. NEW OEM MERCURY FORCE WATER PUMP BASE HOUSING COVER.+$8.75 shipping
  • Used. Offer #2 priced at $110.00 + $0.00 shipping estimate = $110.00* total. Bargain Bin parts Layaway Plan.FREE SHIPPING
  • Used. Offer #3 priced at $100.00 + $14.10 shipping estimate = $114.10* total. Had a cracked lower unit and kept this.+$14.10 shipping

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