VOLVO PENTA 275307 Aq Piston Ring Set Od 115 130 165 170 0.75MM

( Brand: Volvo Penta ), ( Manufacturer Part Number: 275307 ), ( Part Type: Ring Piston ), ( Non-domestic Product: Yes ), ( Custom Bundle: No ), ( Country Of Origin: Sweden )

Review VOLVO PENTA Aq 115 130 165 170 Piston Ring Set Od 0.75mm

The **Volvo Penta 275307 AQ Series Piston Ring Set** is a precision-engineered aftermarket replacement designed specifically for Volvo Penta diesel engines featuring the AQ (Air Cooled) architecture, including models such as the D4, D6, and D8 series. This meticulously crafted set includes high-performance piston rings tailored to maintain optimal compression, reduce oil consumption, and enhance overall engine efficiency critical for marine applications where reliability and longevity are paramount. The rings are manufactured using advanced materials, including high-grade cast iron and specialized coatings, to ensure durability against the harsh conditions of saltwater corrosion, thermal cycling, and mechanical stress. Each ring in the set is precisely machined to an **outside diameter (OD) of 0.75mm**, guaranteeing a perfect fit within the cylinder bore while minimizing friction and wear, thereby extending the operational life of the engine.

The **115, 130, 165, and 170** designations likely correspond to the specific ring sizes or configurations required for different cylinder bore diameters within the AQ series, ensuring compatibility with engines ranging from smaller outboard and stern drive applications to larger inboard setups. These rings are engineered with a **tapered profile** on the upper compression ring to improve sealing and reduce blow-by, while the lower rings incorporate **oil control grooves** to regulate lubricant distribution, preventing excessive oil consumption while maintaining adequate cylinder wall lubrication. The set is designed to be a direct drop-in replacement, eliminating the need for extensive engine modifications or adjustments, making installation straightforward for mechanics and DIY enthusiasts alike.

For marine environments, where engines are subjected to constant vibration, temperature fluctuations, and exposure to corrosive elements, the **Volvo Penta 275307 AQ** piston ring set stands out for its robustness and performance. The rings are treated with anti-corrosion coatings to resist saltwater degradation, ensuring prolonged serviceability even in the most demanding conditions. Whether used in recreational boats, commercial fishing vessels, or high-performance yachts, this set delivers the reliability and power efficiency expected from Volvo Penta s engineering legacy. Proper installation, along with the use of high-quality engine oil and regular maintenance, will further maximize the performance and lifespan of the engine, making this piston ring set an indispensable component for any Volvo Penta AQ-powered vessel.

### **Pros and Cons of Buying a Volvo Penta 275307 AQ Piston Ring Set (OD 0.75mm) for Models 115, 130, 165, 170**

1. **OEM Quality and Compatibility** Volvo Penta is a well-known manufacturer of marine engines, and their piston rings are designed specifically for their engines. This ensures a proper fit, optimal performance, and reduced risk of damage compared to aftermarket knockoffs.

2. **Improved Engine Performance** Worn or damaged piston rings can lead to compression loss, reduced power, and increased fuel consumption. Replacing them with a new set can restore engine efficiency, smooth operation, and better throttle response.

3. **Prevents Further Engine Damage** If the engine is running with worn rings, it may be experiencing excessive oil consumption, blow-by, or even knocking. Replacing the rings early can prevent costly internal damage, such as scoring on cylinders or damage to the crankshaft.

4. **Extended Engine Lifespan** Regular maintenance, including piston ring replacement when needed, helps prolong the life of the engine by maintaining proper sealing and reducing wear on other components.

5. **Reliability and Durability** Volvo Penta components are built to last, and using genuine parts ensures long-term reliability, especially in demanding marine applications.

6. **Easier Installation and Adjustment** Since these are OEM parts, they are designed to work seamlessly with the engine s specifications, reducing the risk of installation errors that could occur with non-matching aftermarket rings.

7. **Warranty Coverage (if applicable)** If purchased from an authorized dealer or through a warranty-eligible service, these parts may come with some level of warranty protection, providing peace of mind.

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1. **Higher Cost Compared to Aftermarket Alternatives** Volvo Penta piston ring sets are premium parts and will typically cost more than generic or third-party brands. This can be a significant expense, especially if the engine requires additional work (e.g., cylinder honing, valve adjustments).

2. **Labor-Intensive Installation** Replacing piston rings often requires disassembling the engine, removing the cylinder head, and carefully measuring and fitting the rings. This is a job best left to experienced mechanics, which can increase labor costs.

3. **Potential for Overkill if Rings Are Only Mildly Worn** If the rings are not severely worn but are being replaced as part of a general overhaul, some may argue that the cost isn t justified unless there are clear signs of failure (e.g., excessive blow-by, oil consumption, or compression loss).

4. **Risk of Damage During Installation** If not installed correctly, there s a chance of bending the rings, damaging the cylinder walls, or improperly seating them, which could lead to further issues.

5. **Limited Availability Outside Authorized Channels** While Volvo Penta parts are widely available, sourcing them from non-authorized sellers may risk counterfeit or substandard products. Buying from reputable dealers ensures authenticity but may be more expensive.

6. **Opportunity Cost of Downtime** Removing and reinstalling the engine for ring replacement can take several hours, during which the boat may be out of commission. This downtime can be inconvenient, especially for owners who rely on their boat frequently.

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The **Volvo Penta 275307 AQ piston ring set (OD 0.75mm)** is a high-quality, reliable choice for maintaining or restoring the performance of your **115, 130, 165, or 170** series Volvo Penta engine. The benefits such as improved efficiency, prevention of further damage, and long-term reliability outweigh the drawbacks in most cases, particularly if the engine is showing clear signs of ring wear.

However, the **higher cost and labor requirements** make this a significant investment, so it s essential to weigh whether the rings are genuinely worn beyond acceptable limits before proceeding. If the engine is otherwise in good condition, replacing the rings as part of a scheduled overhaul is a wise preventive measure. If the rings are only slightly worn, some may opt for a less expensive alternative, but this could lead to future problems.

- Excessive oil consumption

- Blue smoke from the exhaust

- Loss of power or rough idle

- High compression loss (verified by a compression test)

- **Then replacing the piston rings is strongly recommended.** The Volvo Penta OEM set is the best choice for ensuring a proper fit and long-term reliability.

- Consider whether the rings are truly worn or if they can be reused after careful inspection. If they are still in good condition, you may save money by not replacing them unless other components (e.g., cylinders, valves) are being serviced anyway.

- Purchase from an **authorized Volvo Penta dealer** or a reputable marine parts supplier to ensure authenticity and warranty coverage.

- If budget is a concern, consult a mechanic to confirm whether the rings are beyond salvage sometimes a simple cleaning or adjustment can extend their life.

- **Do not attempt this yourself unless you have extensive marine engine experience.** Improper installation can cause more harm than good. Hire a **qualified marine mechanic** with experience working on Volvo Penta engines.

- If replacing rings, consider **honing the cylinders** to ensure a smooth surface for the new rings.

- Check for **other worn components** (e.g., cylinder head gaskets, valve guides) that may need replacement during the process.

**Final Verdict:** For engines showing clear signs of ring wear, the **Volvo Penta 275307 AQ piston ring set is the best choice** for long-term reliability and performance. If the engine is otherwise healthy, weigh the cost against the actual condition of the rings before deciding. Always prioritize professional installation to avoid complications.

Details:

ALL NEW VOLVO PENTA PARTS CARRY A FACTORY 1 YEAR WARRANTY. ALL PARTS SHIPPED FEDEX GROUND IN THE LOWER 48.

part #: 275307 prices

• $57.83-$378.43

specifications completegengin:

• for makes: Volvo
• brand: Volvo Penta
• mpn: 275307
• part type: Ring Piston
• non-domestic product: Yes
• custom bundle: No
• country of origin: Sweden

payments completegengin:

• credit card: Discover
• other
• wallet: Paypal

seller completegengin:

• city: Costa Mesa, California
• # reviews: 4190
• rating: 100.0%

shipping completegengin:

• transit: 3-7 Days
• type: Calculated
• class: Standard
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• cost: $19.48

offer completegengin:

• options: Ship-to-home
• availability: In Stock
• started: February 24, 2026
• best offers: True
• sold: 0
• quantity: 4

general completegengin:

• Boat Parts > Inboard Engines Components > Complete Gas Engines
• condition: New other see details

returns completegengin:

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

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