OMC SUZUKI 5033696 Air Silencer Duct 90-140 4-STROKE

( Brand: Omc Suzuki ), ( Manufacturer Part Number: 5033696 ), ( Part Type: Hp Silencer Duct ), ( Country Of Origin: Japan )

Review OMC SUZUKI Johnson 90-140 Hp 4-stroke Air Silencer Duct fits 2003–2006

The **OEM Suzuki 5033696 Air Silencer Duct** is a precision-engineered exhaust component designed exclusively for **Johnson 90 140 HP 4-stroke outboard motors** manufactured between **2003 and 2006**. Crafted to exacting specifications, this high-quality replacement part ensures optimal performance, durability, and compliance with the original equipment manufacturer s (OEM) standards. The air silencer duct plays a critical role in the outboard s exhaust system by regulating airflow, reducing backpressure, and enhancing engine efficiency while minimizing noise and vibration. Constructed from **heat-resistant, corrosion-proof materials**, this duct is built to withstand the harsh marine environment, including exposure to saltwater, UV radiation, and constant temperature fluctuations. Its seamless design prevents leaks, ensuring a tight seal that maintains exhaust system integrity and prevents water ingress, which could otherwise lead to engine damage. Whether replacing a worn-out component or upgrading for improved performance, this **direct-fit OEM part** guarantees a perfect match with the engine s exhaust manifold and muffler assembly, eliminating the need for modifications or adapters. Ideal for boaters seeking reliability, longevity, and peak engine performance, the **Suzuki 5033696 Air Silencer Duct** is a must-have for maintaining the efficiency and longevity of your Johnson outboard.

### Pros and Cons of buying a OMC Suzuki 5033696 (2003 2006 Johnson 90 140 HP 4-Stroke with Air Silencer Duct)

1. **Reliability and Durability** The Suzuki OHV 4-stroke engine is well-regarded for its robustness and longevity, especially in marine applications. With proper maintenance, these engines often last well beyond their expected lifespan, making them a cost-effective choice over time.

2. **Power and Performance** The 90 140 HP range provides strong performance for its class, suitable for medium-sized boats (18 25 feet) and recreational use. The 4-stroke design offers smoother operation and better fuel efficiency compared to older 2-stroke models.

3. **Fuel Efficiency** Unlike 2-stroke engines, which burn fuel inefficiently, this 4-stroke engine consumes less gas per hour, reducing operating costs over time.

4. **Lower Emissions** 4-stroke engines produce fewer harmful emissions, making them a more environmentally friendly option compared to older 2-stroke models, which were notorious for polluting waterways.

5. **Ease of Maintenance** The OHV (Overhead Valve) design simplifies maintenance tasks like valve adjustments, oil changes, and spark plug replacements compared to some older inline engines.

6. **Aftermarket Support** Suzuki marine engines have a strong aftermarket presence, meaning parts, upgrades, and tuning options are widely available. This makes repairs and modifications easier and more affordable.

7. **Resale Value** Well-maintained Suzuki 4-stroke engines hold their value better than many older marine engines, especially if they come from a reputable dealer or have a service history.

8. **Quieter Operation** The air silencer duct helps reduce noise, making it more suitable for areas with noise restrictions or for boaters who prefer a quieter ride.

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1. **Higher Initial Cost** Compared to older 2-stroke engines or budget 4-stroke alternatives, this Suzuki model may have a higher upfront price, especially if purchasing from a dealer with a warranty.

2. **Complexity** While easier to maintain than some older engines, 4-stroke engines still require more frequent oil changes, cooling system checks, and other routine maintenance compared to simpler 2-stroke setups.

3. **Fuel Type Dependency** 4-stroke engines require clean gasoline (not marine fuel or ethanol blends in high concentrations), which can be more expensive or harder to source in some areas.

4. **Weight** Marine 4-stroke engines are generally heavier than their 2-stroke counterparts, which may require additional structural support in the boat s engine compartment.

5. **Potential for Overheating** Poor cooling system maintenance (e.g., clogged water passages, failing impellers) can lead to overheating, which is a common issue with marine engines if not properly monitored.

6. **Limited Availability of Parts** While Suzuki parts are widely available, some specialized components (e.g., rare seals or gaskets) may take longer to source than for more common engines.

7. **Learning Curve for Older Models** If the engine is from the early 2000s, finding a mechanic familiar with its nuances (e.g., carburetion tuning, specific wiring) might require extra effort.

8. **Noise and Vibration** Despite the air silencer, some 4-stroke marine engines can still produce noticeable vibration and noise, which may be a drawback for sensitive boaters.

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The **OMC Suzuki 5033696 (2003 2006 Johnson 90 140 HP 4-stroke with air silencer duct)** is a solid choice for boaters seeking a **reliable, fuel-efficient, and lower-emission** engine for medium-sized boats. Its **durability, performance, and strong aftermarket support** make it a practical investment for recreational use, especially if you prioritize long-term cost savings and environmental considerations. However, the **higher upfront cost, maintenance demands, and occasional complexity** mean it s best suited for those who are prepared to invest time and effort into upkeep.

If you re looking for a **budget-friendly, low-maintenance option**, a well-maintained 2-stroke engine or a newer 4-stroke model might be preferable. But if you value **efficiency, longevity, and performance**, this Suzuki engine is a **strong recommendation** particularly if you have access to proper maintenance or mechanical support.

- You need a **reliable, mid-range power** solution for a medium boat.

- You re willing to **maintain it properly** (oil changes, cooling system checks, etc.).

- You prefer **lower emissions and fuel efficiency** over raw power.

- You can source **parts and service** easily in your area.

- You re on a **tight budget** and can t afford the upfront cost or maintenance.

- You lack **mechanical experience** or access to a marine mechanic.

- You prioritize **simplicity and low upkeep** over efficiency (e.g., a 2-stroke might be easier for some).

- You re buying without a **service history** or inspection, as hidden issues could arise.

For the best value, **inspect the engine thoroughly** (check for leaks, wear, and performance) and consider **purchasing from a dealer with a warranty** if possible. If buying used, verify the **service records** and ensure the air silencer duct is in good condition.

Details:

This was removed from a running motor. No cracks or breaks. AIR SILENCER: JOHNSON 115HP, 140HP, 90HP,: For sale is the air silencer duct for a 2003 2006 OMC Johnson Eventide Suzuki made 90-140 hp 4-stroke outboard, this may fit other model's too. This assembly is in good working condition.

This part was removed from a 2004 Johnson 140 hp 4 stroke outboard, model number: J140PX4SR.

part #: 5033696 prices

• $13.00-$35.59

specifications ouboaen:

• for makes: Johnson, Omc
• for years: 2003-2006
• brand: Omc Suzuki
• mpn: 5033696
• part type: Hp Silencer Duct
• country of origin: Japan

returns ouboaen:

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

payments ouboaen:

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

shipping ouboaen:

• cost: $10.00
• type: Fixed
• carrier: USPS
• class: Standard
• transit: 3-8 Days
• service: USPS Ground Advantage

seller ouboaen:

• # reviews: 2904
• rating: 100.0%
• city: Lennon, Michigan

offer ouboaen:

• options: Ship-to-home
• quantity: 1
• started: March 11, 2026
• sold: 0
• availability: In Stock
• best offers: True

general ouboaen:

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

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