1. Pistons, Rings & Piston Kits Products
  2. sku: 10251474623711861
  3. YAMAHA 1A1-11601-40

YAMAHA 1A1-11601-40 Piston Ring Set 1.00

fits model: Rd250, Rd350, Rd400. make: Yamaha. year: 1973–1979.

1a1-11601-40 Yamaha 1973-1979 Rd250 Rd350 Rd400 Oem Piston Ring Set 1.00

( Manufacturer Part Number: 1A1-11601-40 ), ( Part Type: Ring Piston ), ( Country Of Origin: United States ), ( Manufacturer Warranty: 30 Day ), ( Storage Location: K6 Mot-n Buk 23 )

Review YAMAHA Oem Piston Ring Set 1.00 fits RD250 RD350 RD400 1973–1979

Introducing the Yamaha 1A1-11601-40 piston ring set, an essential upgrade for the Yamaha RD250, RD350, and RD400 motorcycles produced between 1973 and 1979. This ring set is designed to provide superior performance and durability, enhancing the overall riding experience.

The 1A1-11601-40 piston ring set comprises four high-quality piston rings: two compression rings, one oil control ring, and one scraper ring. Each ring is meticulously crafted from advanced materials to ensure optimal sealing and efficiency. The compression rings are made of low-tension alloy, which allows for a more even compression of the fuel-air mixture in the piston, leading to enhanced power output and improved fuel economy.

The oil control ring is designed to minimize oil consumption by preventing excessive oil from entering the crankcase. This results in cleaner oil, longer engine life, and reduced exhaust emissions. The scraper ring, on the other hand, is responsible for removing carbon deposits from the piston skirts, ensuring proper clearance and efficient engine operation.

Installing the 1A1-11601-40 piston ring set is a straightforward process, making it an excellent choice for both professional mechanics and avid DIY enthusiasts. The rings come with proper end gaps to ensure a precise fit and accurate compression, minimizing the risk of engine damage during installation.

Moreover, the 1A1-11601-40 piston ring set is compatible with various engine configurations, making it a versatile upgrade for Yamaha RD250, RD350, and RD400 motorcycles. By upgrading to these high-performance piston rings, riders can expect improved engine performance, increased power, and extended engine life, making every ride more enjoyable and efficient.

Piston Ring Set (Yamaha 1A1-11601-40) for RD250, RD350, and RD400: A Comprehensive Analysis

Introduction:

This analysis aims to provide a detailed examination of the Yamaha 1A1-11601-40 piston ring set, which is compatible with the RD250, RD350, and RD400 motorcycles. By exploring its features, benefits, potential drawbacks, and real-world usage, we will help you make an informed decision about whether this piston ring set is worth investing in.

Features:

1. Designed for Yamaha RD250, RD350, and RD400 motorcycles

2. Includes a complete set of piston rings (compression rings, oil control rings, and scraper rings)

3. Manufactured using high-quality materials for durability and performance

Benefits:

1. Improved engine performance: Upgrading the piston rings can lead to better engine compression, improved power delivery, and enhanced overall performance.

2. Smoother engine operation: New piston rings can reduce engine knocking and pinging, leading to a smoother riding experience.

3. Increased engine lifespan: Regularly replacing piston rings helps maintain engine health and can extend the lifespan of the motorcycle.

Potential Drawbacks:

1. Cost: Piston ring sets can be relatively expensive, especially for older motorcycles like the RD250, RD350, and RD400, where replacement parts can be hard to come by.

2. Installation complexity: Installing piston rings can be a challenging task, requiring specialized tools and expertise.

Real-World Usage:

Feedback from motorcycle enthusiasts and mechanics suggests that the Yamaha 1A1-11601-40 piston ring set delivers significant improvements in engine performance, power delivery, and overall riding experience. However, the cost and installation complexity are often cited as potential drawbacks.

Conclusion:

The Yamaha 1A1-11601-40 piston ring set is an excellent investment for owners of RD250, RD350, and RD400 motorcycles looking to improve engine performance, increase engine lifespan, and enjoy a smoother riding experience. Despite the cost and installation complexity, the benefits far outweigh the drawbacks for those who prioritize their motorcycle's performance and longevity.

Recommendation:

If you own a Yamaha RD250, RD350, or RD400 motorcycle and are looking to upgrade your piston rings, the Yamaha 1A1-11601-40 set is a solid choice. While the cost and installation complexity might be daunting, the performance improvements and extended engine lifespan make it a worthwhile investment for dedicated motorcycle enthusiasts.

Details:

The image to watch on YouTube. This is a genuine Yamaha OEM 1.00mm oversize piston ring set, designed for classic RD250, RD350, and RD400 model's. Fits: Fits 1973-1979 Yamaha RD250, RD350, and RD400 model's. Yamaha Cruisers.

Essential for engine rebuilds to restore compression and performance. Spotlight: A Day Inside . Yamaha MX / ATV.

part #: 1a11160140 prices

  • $20.00-$45.01

specifications pistondon:

  • for models: Rd250, Rd350, Rd400
  • for makes: Yamaha
  • for years: 1973-1979
  • mpn: 1a1-11601-40
  • part type: Ring Piston
  • country of origin: United States
  • manufacturer warranty: 30 Day
  • storage location: K6 Mot-n Buk 23

general pistondon:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
  • condition: New other see details

seller pistondon:

  • # reviews: 207344
  • rating: 99.3%
  • city: Odessa, Florida

offer pistondon:

  • availability: In Stock
  • started: January 28, 2026
  • quantity: 2
  • options: Ship-to-home
  • sold: 0

returns pistondon:

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

shipping pistondon:

  • type: Fixed
  • cost: $0.00
  • class: Standard, Expedited, One-day
  • service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, FedEx 2Day, Overnight
  • transit: 2-6 Days
  • carrier: FedEx, USPS

payments pistondon:

  • wallet: Google-pay
  • credit card: Mastercard
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for models: rd250, rd350, rd400, for makes: yamaha, for years: 1973-1979, part type: ring piston, country of origin: united states, manufacturer warranty: 30 day, storage location: k6 mot-n buk 23,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 10251474623711861,

Yamaha 1A1-11601-40 Is Similar To:

pistondon logo
5 offers $20.00–$45.01 USD
  • Offer #1: $45.01 price + $0.00 shipping estimate = $45.01* total. Fits: Fits 1973-1979 Yamaha RD250, RD350, and RD400 models This is a genuine Yamaha OEM +1.00mm oversize piston ring set, designed for classic RD250, RD350, and RD400 models.FREE SHIPPING
  • Offer #2: $31.64 price + $0.00 shipping estimate = $31.64* total. Ideal for engine rebuilds requiring a significant bore increase. Fits: 1976-1978 Yamaha RD400 1.0mm 4th O/S Piston Ring Set.FREE SHIPPING
  • Offer #3: $20.00 price + $5.48 shipping estimate = $25.48* total. Perfect for those looking to replace worn-out or damaged piston rings on their vintage Yamaha machine. The Yamaha 1.00 Piston Rings are specifically designed for Yamaha 2-stroke engines.+$5.48 shipping
  • Offer #4: $121.25 price + $8.75 shipping estimate = $130.00* total. 1979 RD400F CRANK & PISTON NOS YAMAHA PISTON RING SET 1MM OVERSIZE.+$8.75 shipping
  • Offer #5: $74.95 price + $0.00 shipping estimate = $74.95* total. Location:JC6-23A BAG1 Up for sale, NOS Yamaha OEM Piston Ring Set 1.00 1979 RD400.FREE SHIPPING

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