1. Ignition & Starting Systems Inboard Engines Components For Sale
  2. sku: 8576227504063752
  3. VOLVO PENTA 21758347

VOLVO PENTA 21758347 Dual Engine Key Switch

fits make: Volvo.

21758347 Volvo Penta Used Oem Dual Engine E-key Switch

( Brand: Volvo Penta ), ( Manufacturer Part Number: 21758347 ), ( Part Type: Switch Engine )

Review VOLVO PENTA Used Oem Dual Engine E key Switch

The **Volvo Penta 21758347 Dual Engine E-Key Switch** is a high-performance, precision-engineered ignition and control module designed exclusively for Volvo Penta s advanced dual-engine systems, delivering unparalleled reliability and seamless operation for marine and industrial applications. This sophisticated electronic key switch combines cutting-edge technology with robust mechanical durability, ensuring effortless starting, secure engine management, and enhanced user convenience. Built with Volvo Penta s signature attention to detail, the 21758347 features a dual-engine configuration, allowing simultaneous or independent control of two separate engines through a single, intuitive interface. The integrated **E-Key system** eliminates the need for traditional ignition keys, instead utilizing a wireless, electronic key fob that provides keyless entry, remote start functionality, and enhanced security against unauthorized access. This advanced feature not only simplifies operation but also reduces wear and tear on mechanical locks, extending the lifespan of the system while offering a modern, user-friendly experience.

Under the hood, the switch is constructed from high-grade materials, including corrosion-resistant metals and reinforced plastics, ensuring long-term performance even in the harshest marine environments. Its compact yet sturdy design allows for easy installation in tight spaces, while the durable housing protects against water ingress, salt corrosion, and physical impact, making it ideal for both recreational and commercial vessels. The switch s **dual-engine compatibility** ensures precise synchronization of throttle, ignition, and fuel delivery between two engines, optimizing power distribution and fuel efficiency while maintaining smooth operation. Whether used in a high-performance yacht, a commercial fishing vessel, or an industrial powerboat, this switch guarantees consistent performance and reliability, even under demanding conditions.

For operators seeking both functionality and innovation, the **Volvo Penta 21758347** delivers a seamless blend of technology and engineering excellence. Its **E-Key system** not only enhances security by preventing unauthorized starts but also provides convenience through features like remote engine control, allowing users to start, stop, or monitor their engines from a distance. The switch s compatibility with Volvo Penta s broader range of marine electronics ensures easy integration with navigation systems, fuel management tools, and other onboard technology, creating a fully connected and efficient control environment. With its focus on durability, precision, and user experience, this dual-engine E-Key switch is an essential component for any marine application requiring advanced, reliable, and intuitive engine management.

### **Pros and Cons of Buying a Volvo Penta 21758347 Dual Engine E-Key Switch**

The **Volvo Penta 21758347** is a dual-engine electronic key switch designed for marine applications, allowing control of two engines via a single key system. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **Convenience and Security**

- The **E-Key system** eliminates the need for multiple physical keys, reducing the risk of losing or misplacing them. A single key can control both engines, simplifying access.

- The electronic key is less prone to wear and tear compared to traditional mechanical keys, extending its lifespan.

2. **Enhanced Engine Management**

- The dual-engine compatibility allows for **synchronized control** of two engines, which is useful in applications like **twin-engine boats, yachts, or commercial vessels**.

- Some E-Key systems integrate with **Volvo Penta s NMEA 2000 network**, enabling advanced diagnostics, remote monitoring, and automated engine shutdowns in emergencies.

3. **Theft Deterrence**

- Electronic keys often include **immobilizer functions**, preventing unauthorized engine starts even if the key is physically present but not authenticated.

- Some models support **geographic restrictions**, allowing engines to start only in predefined areas (useful for preventing theft in ports or marinas).

4. **Compatibility with Modern Systems**

- Works seamlessly with **Volvo Penta s IPS (Inboard Performance System), IPS 2, and other integrated drive systems**, enhancing overall boat functionality.

- Can be paired with **smartphone apps** for remote monitoring and control, adding a layer of convenience for boat owners.

5. **Durability and Weather Resistance**

- Designed for **marine environments**, the E-Key switch is typically **waterproof, dustproof, and resistant to corrosion**, ensuring reliability in harsh conditions.

- The electronic components are often **sealed against saltwater and humidity**, reducing the risk of malfunctions.

6. **Future-Proofing**

- Electronic key systems are **easier to upgrade or reprogram** compared to mechanical keys, allowing for compatibility with future Volvo Penta technologies.

- Some models support **multiple user profiles**, enabling different access levels (e.g., captain vs. crew).

7. **Reduced Key Management Hassles**

- No need to carry multiple keys ideal for **large crews or shared vessels** where key distribution can be cumbersome.

- Lost keys can sometimes be **deactivated remotely** (depending on the system), reducing the need for physical replacements.

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### **Cons**

1. **Higher Initial Cost**

- Electronic key systems are **more expensive** than traditional mechanical keys, especially when factoring in installation and potential integration with existing boat electronics.

- Replacement costs for lost or damaged E-Keys can also be **significantly higher** than for standard keys.

2. **Dependence on Battery and Electronics**

- The E-Key relies on **battery power** (either built-in or via the boat s electrical system). A **dead battery or electrical failure** can lock out the engines, leaving the boat inoperable.

- **Electrical surges or system malfunctions** could potentially disable the key system, requiring professional intervention.

3. **Potential for System Failures**

- Electronic systems are **not immune to software glitches, firmware updates, or compatibility issues** with newer Volvo Penta models.

- If the **NMEA 2000 network or boat s control system fails**, the E-Key may become unusable until the issue is resolved.

4. **Limited Off-the-Shelf Support**

- Unlike mechanical keys, **E-Keys may require specialized technicians** for programming, activation, or replacement, which can be inconvenient in remote areas.

- Some dealers may not stock spare E-Keys, leading to **longer wait times for replacements**.

5. **Security Risks (If Not Properly Configured)**

- While E-Keys improve security, **advanced hacking or signal jamming** could theoretically bypass authentication in rare cases (though Volvo Penta systems are generally secure).

- **Physical tampering** (e.g., cutting power to the key system) could disable the engines, requiring manual overrides (which may not always be possible).

6. **Compatibility Issues with Older Systems**

- If the boat has **legacy engine or control systems**, the E-Key may **not be fully compatible**, requiring additional adapters or upgrades.

- Some older Volvo Penta models may **lack proper E-Key integration**, limiting functionality.

7. **Environmental and Physical Durability Concerns**

- While designed for marine use, **extreme cold or heat** could affect electronic performance, potentially leading to temporary malfunctions.

- **Physical damage** (e.g., dropping the key or exposing it to extreme moisture) could render it inoperable.

8. **Learning Curve for Users**

- Operators unfamiliar with **electronic key systems** may require training to understand how to **activate, deactivate, or troubleshoot** the E-Key.

- Some features (e.g., remote monitoring via apps) may not be intuitive for all users.

---

### **Conclusion**

The **Volvo Penta 21758347 E-Key switch** is a **highly convenient and secure** solution for boat owners managing dual engines, particularly those who value **modern technology, reduced key management, and enhanced security**. Its **integration with Volvo Penta s advanced systems** makes it ideal for **performance boats, yachts, and commercial vessels** where reliability and ease of use are critical.

However, the **higher cost, dependency on electronics, and potential for system failures** make it less suitable for **budget-conscious buyers or those with older boat setups**. Additionally, **maintenance and support requirements** may be more complex than traditional key systems.

### **Recommendation**

- **Buy the E-Key if:**

- You own a **modern Volvo Penta-equipped boat** with **NMEA 2000 or integrated systems**.

- You prioritize **convenience, security, and remote monitoring** over cost savings.

- You operate in an **environment where key management is a hassle** (e.g., shared vessels, large crews).

- You are willing to **invest in a more advanced (but reliable) key system** with long-term benefits.

- **Avoid or Consider Alternatives if:**

- Your boat has **older engine or control systems** that may not fully support the E-Key.

- You are **cost-sensitive** and prefer the simplicity of mechanical keys.

- You frequently operate in **areas with unreliable electrical infrastructure**, where battery failures could be problematic.

- You lack **access to specialized technicians** for E-Key programming or repairs.

**Final Verdict:** For the right buyer particularly those with **modern Volvo Penta setups and a need for streamlined engine control the 21758347 E-Key switch is a **strong investment**. However, those with **limited technical support access or older boat systems** may find traditional keys more practical. Always **consult a Volvo Penta dealer** to ensure compatibility and proper installation before purchasing.

Details:

Used in good condition sold as pictured.

part #: 21758347 price

  • $450.00

specifications ignitionstartin:

  • for makes: Volvo
  • brand: Volvo Penta
  • mpn: 21758347
  • part type: Switch Engine

shipping ignitionstartin:

  • type: Calculated
  • class: Standard
  • carrier: UPS
  • transit: 5-11 Days
  • cost: $16.72
  • service: UPS Ground

payments ignitionstartin:

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

returns ignitionstartin:

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

seller ignitionstartin:

  • city: Forked River, New Jersey
  • rating: 98.2%
  • # reviews: 9150

offer ignitionstartin:

  • best offers: True
  • started: February 14, 2026
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
  • sold: 0

general ignitionstartin:

  • Boat Parts > Inboard Engines Components > Ignition Starting Systems
  • condition: Used
for makes: volvo, part type: switch engine,
category: boat parts > inboard engines components > ignition starting systems, sku: 8576227504063752,
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1 offer $450.00 USD
  • Used. Offer #1 priced at $450.00 + $16.72 shipping estimate = $466.72* total. Used in good condition sold as pictured.+$16.72 shipping

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