MERCURY 39-34479 Piston Ring Set 120/2.5L 160/3.0L 190/4.1L

( Manufacturer Part Number: 39-34479 ), ( Part Type: Ring Piston ), ( Warranty: 30 Day )

Review MERCURY Piston Ring Set 120/2.5l 160/3.0l 190/4.1l fits MERCRUISER MCM

Mercury 39-34479 Mercruiser Piston Ring Set - Compatible with MCM 120/2.5L, 160/3.0L, and 190/4.1L

Experience reliable performance and extended engine life with the Mercury 39-34479 Mercruiser Piston Ring Set. Designed to fit Mercury Marine Cruiser engines with MCM displacements of 120/2.5L, 160/3.0L, and 190/4.1L, this comprehensive ring set ensures a perfect fit for your engine.

The Mercury 39-34479 piston ring set includes top, second, and oil control rings. These rings are precision-engineered from high-quality materials to deliver superior sealing, reduced wear, and enhanced durability. The top rings are designed to ensure optimal compression and power, while the second rings provide even combustion pressure. The oil control rings, on the other hand, help minimize oil consumption for increased efficiency and engine protection.

Installation of the Mercury 39-34479 piston ring set is made easy with comprehensive, step-by-step installation instructions included. These instructions, coupled with the precision-manufactured design of the rings, ensure a straightforward installation process, even for the less experienced mechanic.

By choosing the Mercury 39-34479 Mercruiser Piston Ring Set, you're investing in a product that delivers superior performance, reliability, and longevity for your Mercury Marine Cruiser engine. Whether you're cruising on the open water or making memories with family and friends, trust Mercury Marine to provide you with the peace of mind you deserve.

Upgrade your engine today with the Mercury 39-34479 Mercruiser Piston Ring Set, and experience the difference that comes with using high-quality, performance-enhancing parts from a trusted brand.

Analysis of Mercury 39-34479 Mercruiser Piston Ring Set (MCM 120/2.5L, 160/3.0L, 190/4.1L)

1. Compatibility: This piston ring set is designed to fit a wide range of Mercury outboard engines, including 120/2.5L, 160/3.0L, and 190/4.1L engine models.

2. Quality: Mercury Marine is a well-known brand in the marine industry, known for producing high-quality parts. This piston ring set is likely to be of good quality as well.

3. Availability: As it is a genuine Mercury part, it should be widely available through authorized dealers and online retailers.

1. Price: Given that this is a genuine Mercury part, it may be more expensive compared to aftermarket alternatives.

2. Lack of Customization: Since it is a set, it may not offer the flexibility to choose individual rings with different specifications.

3. Potential for Overkill: If the engine is in good condition and the piston rings are not the problem, buying this set might be an unnecessary expense.

The Mercury 39-34479 Mercruiser Piston Ring Set offers the advantage of compatibility with a wide range of Mercury outboard engines and the perceived quality that comes with a well-known brand. However, it may be more expensive than aftermarket alternatives and lack the flexibility to choose individual rings with different specifications.

If you are experiencing issues with your Mercury outboard engine's piston rings and have confirmed that this is the problem, then the Mercury 39-34479 Mercruiser Piston Ring Set could be a good investment. However, if you are unsure about the cause of the problem or are on a tight budget, it might be worth considering aftermarket alternatives or seeking advice from a professional mechanic.

Details:

For Mercruiser Stern Drive. Piston Ring Oversize std. Marine Engine Horsepower Rating120, 140, 165 I/L6, 190 V8. Vehicle Fitment Guide.

Piston Rings Standard size. 1 Cylinder Set. Item pictured for sale in NEW old stock condition these items have never been used however there may be rust, scratches, chipping, etc. This is a what you see get listing.

Premium Quality For Longer Life. This listing is for the actual item in photograph. Product Dimensions 1.91 x 15.24 18.08 cm; 9.07 g. Please review all pictures on a laptop or PC to the details of each item.

Includes five piston rings. This listing is for 1 set of 5 piston rings. Size: Standard. Most carriers will not pay claims without detailed pictures of the box, label, packing, and damage.

part #: 3934479 prices

• $44.95-$100.00

specifications ouboaen:

• for models: Mcm, Mercruiser
• for makes: Mercury
• mpn: 39-34479
• part type: Ring Piston
• warranty: 30 Day

shipping ouboaen:

• cost: $0.00
• carrier: USPS
• type: Calculated
• class: Standard
• transit: 6-14 Days
• service: USPS Ground Advantage

payments ouboaen:

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

offer ouboaen:

• availability: In Stock
• best offers: True
• sold: 0
• started: June 11, 2025
• quantity: 4
• options: Ship-to-home

returns ouboaen:

• policy: No Returns

seller ouboaen:

• city: Sweeny, Texas
• rating: 99.4%
• # reviews: 458

general ouboaen:

• Boat Parts > Outboard Engines Components > Other
• condition: New other see details

Mercury 39-34479 Is Similar To:

• 031026 Michigan Propeller Aluminum Prop Mercruiser Mercury Outboard (27% similar) Pb this prop has some minor damage as seen in the pictures. Please see included pictures. Condition: used but in good condition and guaranteed to function properly. This prop will also fit v6 Honda outboards with the correct hardware. 75 x 21P mercruiser mercury outboard propeller fits various ...(April 3rd, 2018)
• 10-36070 Green Bay Prop Mercury Mariner Mercruiser Marine Engine Screw (36.1% similar) Quicksilver screw, 5-PACKFOR use on many mercury mariner outboards and mercruiser stern drives. Over 120 marine engines use this screw...(July 12th, 2018)
• 10-67751 Mercury Nos Oem Mercruiser (34.9% similar) If not, let us know and we'll try our hardest to reply within one working day. Some parts may have worn or missing packaging PORTSIDEMARINE1 16:42:42:53. Any questions. PORTSIDEMARINE1 nos oem mercury mercruiser hex cap bolt screw transom bracket lot 804 new old stock item in original packaging. New...(February 16th, 2018)
• 100-07-04k 783-9613a 1 783-9613a1 Wsm Piston Kit Mercury Looper Hp Over Size Only (27.1% similar) Piston kit: mercury loopier hp bore LOOPER601991MERCURY3 Cl LOOPER501995MERCURY3 LOOPER601996MERCURY3 LOOPER501993MERCURY3 over size only note: LOOPER501996MERCURY3 LOOPER501994MERCURY3 LOOPER601992MERCURY3 LOOPER601995MERCURY3 LOOPER601994MERCURY3 LOOPER501992MERCURY3 LOOPER601993MERCURY3 955 bore ...(April 6th, 2018)
• 100-100-07k 0435546 0390457 Mercury Piston Kit Johnson Evinrude Hp Cyl Looper Over Size (27.3% similar) Piston kit: Johnson eventide hp 2 Cl loopier bore...(April 5th, 2018)
• 1100 Mercury Nos Outboard Piston And Rings (37.9% similar) Parts are new in the box. Box has shelf wear. 015 oversize 1100 serial numbers thru 2314955GM1217178. Mercury part no 2740A2 see pics...(February 7th, 2019)
• 12-40023 20 Mercury New Mercruiser Quicksilver Washer (37.8% similar) Hazardous products hazmat 1 carriers charge extra to ship packages with they consider hazardous, such as oils, paints, and primers. 2 custom or special order items. 6 items with missing parts buyers: please refer to estimated delivery dates under shipping. Questions: ask a question link is in blue ...(January 8th, 2019)
• 12-49221 Quicksilver Rubber Washer Mercury Mercruiser (28.3% similar) New pack of 5 rubber washers, quicksilver part number. This part fits many mercury outboard applications...(November 12th, 2018)
• 12-55073a2 Mercruiser New Genuine Oem Mercury Washer Assy Lot (34.1% similar) Please come back soon...(October 26th, 2018)
• 12-815432 Mercury New Mercruiser Quicksilver Washer (38.4% similar) 2 custom or special order items. Ask a question if you do not find listed whoa need. Hazardous products hazmat 1 carriers charge extra to ship packages with they consider hazardous, such as oils, paints, and primers. 6 items with missing parts. Parts are new. Ask a question buyers: please refer to ...(January 7th, 2019)
• 12-835467 5 Green Bay Prop Mercury Mercruiser Marine Engine Thrust Washer (32.7% similar) Quicksilver thrust washer for use on mercury mercruiser marine engines. New oem factory part...(August 11th, 2018)