OMC 0323715 Outboard Inner Exhaust Housing 0336275 60-75

( Brand: Omc ), ( Manufacturer Part Number: 0323715 ), ( Part Type: Hp Exhaust Housing )

Review OMC Evinrude Johnson 60-75 Hp Outboard Inner Exhaust Housing

The **OMC 0323715 / 0336275 Evinrude Johnson 60-75 HP Outboard Inner Exhaust Housing** is a precision-engineered component designed to ensure optimal performance, durability, and efficiency for Evinrude and Johnson outboard motors in the 60 to 75 horsepower range. This inner exhaust housing serves as a critical part of the engine s exhaust system, housing the exhaust manifold, turbocharger (if applicable), and other internal components while directing exhaust gases away from the motor and into the overboard discharge. Crafted from high-grade marine-grade materials, this exhaust housing is built to withstand the demanding conditions of saltwater, freshwater, and frequent exposure to moisture, corrosion, and thermal stress. Its robust construction minimizes the risk of leaks, cracks, or structural failure, which could compromise engine performance or lead to costly repairs.

The design of this inner exhaust housing is both functional and streamlined, featuring precise machining and tight tolerances to maintain proper sealing and exhaust flow. The housing is engineered to integrate seamlessly with the motor s exhaust system, ensuring a secure and leak-proof connection between the engine block, turbocharger (where applicable), and the outer exhaust housing. This component is particularly vital for motors equipped with forced induction, as it houses the turbocharger s turbine assembly, allowing for efficient scavenging of exhaust gases to boost engine power while reducing backpressure. The housing s internal passages are meticulously contoured to optimize exhaust flow, reducing turbulence and improving overall engine efficiency.

For boaters and marine technicians, this inner exhaust housing is a direct-fit replacement part, designed to match the exact specifications of the original equipment manufacturer (OEM) for Evinrude and Johnson outboards in the specified horsepower range. Whether replacing a worn or damaged housing due to corrosion, impact damage, or normal wear and tear, this component ensures that the outboard motor continues to operate at peak performance with minimal exhaust restriction. Its compatibility extends across various models within the 60-75 HP class, making it a versatile and reliable solution for both professional marine technicians and DIY enthusiasts. By maintaining the integrity of the exhaust system, this housing helps prolong the life of the engine, reduces maintenance requirements, and ensures a smoother, more responsive ride on the water.

### **Pros and Cons of buying a OMC 0323715 / 0336275 Evinrude/Johnson 60 75 HP Inner Exhaust Housing**

1. **Compatibility with Popular Engines** This part is designed for Evinrude and Johnson outboards in the 60 75 HP range, ensuring a direct fit for common recreational boats, trolling motors, and small fishing vessels. It works with both two-stroke and four-stroke models from these brands.

2. **Improved Performance & Efficiency** A properly functioning inner exhaust housing helps maintain optimal exhaust flow, reducing backpressure and improving engine efficiency. This can lead to better throttle response and fuel economy.

3. **Prevents Water Ingestion** A worn or damaged inner exhaust housing can allow water to enter the engine, causing corrosion, damage to internal components, and reduced performance. Replacing it ensures proper sealing and prevents costly engine issues.

4. **Cost-Effective Replacement** Compared to full engine overhauls or replacements, this part is relatively inexpensive. It s a straightforward repair that can extend the life of an otherwise serviceable outboard.

5. **Easy Installation** Designed for DIY-friendly repairs, the inner exhaust housing can often be replaced with basic tools (socket wrench, gasket scraper, and sealant). Many boat owners or mechanics can complete the job in under an hour.

6. **Prevents Exhaust Leaks** A failing inner exhaust housing can cause exhaust fumes to leak into the boat s cabin, posing a safety hazard. Replacing it ensures proper containment of exhaust gases.

7. **Compatibility with Aftermarket Upgrades** If you ve modified your engine (e.g., with a performance exhaust system), this part may be necessary to maintain compatibility and functionality.

8. **Warranty & Reliability** As an OEM (Original Equipment Manufacturer) part, it is built to meet strict quality standards, offering reliable performance compared to aftermarket knockoffs.

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1. **Potential for Counterfeit Parts** Since this is a common replacement item, there is a risk of purchasing a fake or low-quality aftermarket part. Always buy from reputable dealers or authorized distributors to avoid this issue.

2. **Requires Proper Installation** Improper installation (e.g., incorrect gasket placement, insufficient sealant, or overtightening) can lead to leaks or damage. If unsure, consult a professional mechanic.

3. **May Need Additional Repairs** If the inner exhaust housing failure was due to prolonged neglect (e.g., corrosion, cracked housing, or damaged seals), other components (such as the exhaust manifold or gaskets) may also need replacement.

4. **Limited Lifespan** While durable, inner exhaust housings can degrade over time due to saltwater corrosion, thermal stress, or physical damage. In harsh conditions, they may need replacement every few years.

5. **Disassembly Required** Replacing the inner exhaust housing typically requires removing the lower unit of the outboard, which involves draining oil, disconnecting components, and potentially removing the propeller. This can be time-consuming for inexperienced DIYers.

6. **Compatibility Variations** While this part fits a wide range of 60 75 HP Evinrude/Johnson engines, there may be slight variations in mounting or sealing requirements depending on the exact model year. Always verify compatibility with your engine s service manual.

7. **Cost of Associated Labor** If hiring a professional, labor costs can add up, especially if additional repairs (e.g., seal replacement, lower unit inspection) are needed.

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The **OMC 0323715 / 0336275 inner exhaust housing** is a **critical and cost-effective replacement part** for Evinrude and Johnson outboards in the 60 75 HP range. Its primary benefits **improved engine performance, prevention of water ingestion, and safety from exhaust leaks** make it a worthwhile investment for boat owners experiencing exhaust-related issues. However, **proper sourcing, installation, and potential additional repairs** must be considered to avoid complications.

If your engine is exhibiting symptoms like **reduced power, rough idling, water in the oil, or exhaust leaks**, replacing this part is a **practical and preventative solution** that can save money in the long run. For those comfortable with basic mechanical work, it s a manageable DIY project; otherwise, professional installation is advisable.

- **Buy from an authorized dealer or trusted supplier** to ensure you get the genuine OMC part and avoid counterfeits.

- **Check your engine s service manual** to confirm exact compatibility before purchasing.

- **Inspect surrounding components** (gaskets, seals, exhaust manifold) during replacement to address any hidden issues.

- **Follow manufacturer guidelines** for installation, including proper gasket application and torque specifications.

- **Consider professional help** if you re unsure about disassembling the lower unit or if additional repairs are needed.

**Final Verdict:** This is a **highly recommended replacement part** for maintaining engine health and performance, provided it is installed correctly and sourced from a reliable provider.

Details:

The OMC/BRP part numbers are 0323715, 0330374 and 0336275. Condition: Used. Notes: Used Guaranteed Good Condition. This exhaust housing should fit some Evinrude and Johnson 3 cylinder outboard motors with 60, 65, 70 75 Hp from 1979 to 1990.

This sale is for one used midsection inner exhaust housing Evinrude and Johnson outboard engines.

part #: 0323715 prices

• $17.99-$36.37

specifications ouboaen:

• for makes: Evinrude, Johnson, Omc
• brand: Omc
• mpn: 0323715
• part type: Hp Exhaust Housing

seller ouboaen:

• city: Green Bay, Wisconsin
• # reviews: 29937
• rating: 99.8%

general ouboaen:

• condition: Used
• Boat Parts > Outboard Engines Components > Exhaust Systems

returns ouboaen:

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

offer ouboaen:

• best offers: True
• started: May 6, 2026
• quantity: 7
• sold: 0
• options: Ship-to-home
• availability: In Stock

payments ouboaen:

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

shipping ouboaen:

• cost: $25.40
• class: Standard, Expedited, One-day
• type: Calculated
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS Next Day Air Saver
• transit: 3-9 Days
• carrier: USPS, UPS

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