WISECO 40109M08300 Piston Kit Big Bruin 83.00MM

( Brand: Wiseco ), ( Manufacturer Part Number: 40109M08300 ), ( Part Type: Piston )

Review WISECO Piston Kit 83.00mm Yamaha Big Bruin fits RAPTOR WARRIOR GRIZZLY BEAR 350

The WiseCo 40109M08300 piston kit is an excellent upgrade solution for the Yamaha Raptor Warrior, Grizzly, Big Bear, and Bruin 350 models. This piston kit is specifically designed to provide enhanced performance and reliability for these popular ATVs.

The piston kit includes four high-quality pistons, each one meticulously crafted from forged aluminum alloy. The pistons are engineered with a precise cylindrical shape and a honed skirt finish to ensure a perfect seal with the cylinder wall. Their design also features optimized piston cooling pockets that enhance heat dissipation, reducing the risk of thermal damage.

Moreover, these pistons come with low-friction, nitrided wrist pins that minimize friction between the piston and connecting rod. This results in smoother engine operation, reduced wear, and improved engine efficiency.

The piston rings included in this kit are made from high-temperature, low-friction materials, ensuring a proper seal in the cylinder and optimal compression. These rings are also designed to reduce the amount of blowby gases, which can improve overall engine performance and reduce emissions.

To ensure a proper fit, each piston in the kit comes with an accompanying cylinder liner. These liners are machined to exacting specifications and are designed to provide a perfect match with the original cylinder bore. This ensures proper piston-to-liner clearance and minimal engine wear.

Additionally, the piston kit includes new piston pins, ring retaining clips, and piston pin bushings. These components are all manufactured to OEM specifications, ensuring a precise fit and reliable operation.

Installing the WiseCo 40109M08300 piston kit is a straightforward process that can be completed with common hand tools. A detailed installation guide is included with the kit to help ensure a successful installation.

In summary, the WiseCo 40109M08300 piston kit is an excellent choice for Yamaha Raptor Warrior, Grizzly, Big Bear, and Bruin 350 owners who are looking to enhance their engine performance and reliability. With high-quality, forged aluminum pistons, low-friction wrist pins, and precise cylinder liners, this kit offers a cost-effective solution for extending the life of your ATV's engine.

Wiseco 40109M08300 Piston Kit for Yamaha Raptor Warrior, Grizzly, Big Bear, Bruin 350: A Detailed Analysis

The Wiseco 40109M08300 piston kit is a popular aftermarket option for the Yamaha Raptor Warrior, Grizzly, Big Bear, and Bruin 350. This piston kit is known for its high performance and durability. In this analysis, we will discuss the pros and cons of purchasing this piston kit, ending with a conclusion and recommendation.

1. Enhanced Performance: The Wiseco piston kit is designed to offer improved power and torque, making it an excellent option for riders looking to boost the performance of their Yamaha ATV.

2. Durability: The piston kit is made from high-quality materials, ensuring it can withstand the rigors of off-road riding. The pistons are forged from aluminum, which is stronger and lighter than the stock pistons.

3. Improved Ring Life: The piston kit comes with ring packs that provide longer ring life compared to the stock pistons. This means fewer rebuilds and more time spent riding.

4. Customizable: Wiseco offers various piston options, allowing riders to choose a piston based on their specific riding style and engine configuration.

1. Cost: The Wiseco piston kit is more expensive than the stock pistons, which may deter some riders. However, the performance and durability benefits may outweigh the cost.

2. Installation: Installing the piston kit can be a complex process and may require the assistance of a professional mechanic.

3. Compatibility: Ensure the piston kit is compatible with your specific model and year of the Yamaha ATV.

The Wiseco 40109M08300 piston kit offers numerous benefits, including enhanced performance, durability, improved ring life, and customizability. However, it comes with a higher cost and the complexity of installation. Ultimately, if you are an avid off-road rider seeking improved performance and increased durability, the Wiseco piston kit is a worthwhile investment.

If you are considering purchasing the Wiseco 40109M08300 piston kit for your Yamaha Raptor Warrior, Grizzly, Big Bear, or Bruin 350, ensure you have the necessary resources and expertise to install it yourself or hire a professional mechanic to do it for you. Additionally, double-check the compatibility of the piston kit with your specific model and year of the Yamaha ATV. With proper preparation and installation, you will enjoy the benefits of this high-performance piston kit.

Details:

Bore Size: 83.00mm. Compression Ratio: Standard. Piston kit includes piston, rings, wrist pin and cir clips. Computer engineered piston skirt profiles provide minimal cylinder wall friction.

Fits the following model's: YAMAHA BIG BEAR 350 1987 -1999, BRUIN 2004 -2006, GRIZZLY 2007 -2014, RAPTOR 2005 -2013, WARRIOR 1987 - 2004 -2006. Wiseco Piston Kit 83.00mm, Lightweight forging for instant throttle response and maximum torque. Specs: Oversize: Standard.

part #: 40109m08300 prices

• $156.99-$248.95

specifications enginesnowmobile:

• for models: 350, Raptor, Warrior, Grizzly, Bear
• for makes: Yamaha
• brand: Wiseco
• mpn: 40109m08300
• part type: Piston

returns enginesnowmobile:

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

shipping enginesnowmobile:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 2-5 Days

offer enginesnowmobile:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: June 4, 2025

payments enginesnowmobile:

• credit card: Discover
• wallet: Apple-pay
• other

seller enginesnowmobile:

• # reviews: 18136
• rating: 97.4%
• city: 97477

general enginesnowmobile:

• Snowmobile Parts > Engines Components > Snowmobile Engine Components
• condition: New

Wiseco 40109M08300 Is Similar To:

• 004sd600hol338kt Wiseco Legend Ho Top End Rebuild Kit Pistons Gaskets Std (22.1% similar) Brand new Wiseco top end engine rebuild kit. Pistons are for the standard bore 72MM. Armor glide coated skirts perform at the highest standards, reducing friction and heat for added power longevity. Piston kits are precision crafted and forged in the USA. High-quality forged pistons made with ...(March 9th, 2019)
• 008sd600hosk338kt Wiseco Skandic Ho Top End Rebuild Kit Pistons Gaskets Std (21.8% similar) Forged from high-silicon alloy for maximum strength and dependability. Brand new Wiseco top end engine rebuild kit. High-quality forged pistons made with aerospace alloy to precise specifications. Piston kits are precision crafted and forged in the USA. Armor glide coated skirts perform at the ...(March 9th, 2019)
• 11853m08800 Wiseco Piston Oversize Arctic Cat Cfi (31.7% similar) You can also leave us a message. 00MM stroke: 70. Wiseco piston bore - standard: 85. Please verify your junk bulk mail folder as our e-mail reply may end up in there. 00MM bore - actual: 88. Bore - oversize: 00MM -stroke: 70. Satisfaction guaranteed before opening a request. 00MM bore - actual: 88. ...(July 1st, 2018)
• 11929m06950 Wiseco Piston Yamaha Srx (34.9% similar) 5MM piston kits for 1976 and 1977 yamaha STX 440 SSE comes complete with piston, rings, pin clips...(August 5th, 2017)
• 73.5mm 2895kd 1999-04 Polaris 550 Classic Indy Sport Trail Pro X Wiseco Piston Ring Set (20.3% similar) 5MM for your consideration is 1 brand new in package, vintage Wiseco brand oem size 73. 02 oversize piston ring set, to fit Polaris classic Polaris Indy sport touring Polaris Indy sport touring Polaris Indy sport touring Polaris Indy sport touring Polaris Indy super sport Polaris Indy super sport ...(February 5th, 2016)
• 2010p1 Wiseco Piston Ccw 290cc (26.7% similar) New piston and rings, no pin or clips...(March 28th, 2017)
• 2012p2 Wiseco Nos Oversized Ccw Bse Piston Rings Vintage (26% similar) One set only. Wiseco piston ASSEMBLY2012P2STANDARD with RINGS60MM see photo. Box has shelf-wear, item sealed in packaging over fits cc engine, john Deere OTHERS340 moot ski 340 Bose ENGINE70S engines many makes model's of snowmobiles, ATV, ultralights note: is new-old-stock...(April 2nd, 2019)
• 2013p2 Wiseco Piston (23.6% similar) Includes 1 piston with rings only nos vintage snowmobile Wiseco 2013 P2JOHN Deere cc 4/2 3/4 twin. May fit others also. Might not be accurate. Some of these old part numbers are hard to look up. 020 over fitment is what I found on box, online, or in old parts books. I have many more nos Wiseco ...(August 11th, 2018)
• 2023 Ps Wiseco Full Piston (24.1% similar) Standard size. Clothing all of our clothing is new with tags. Doing so is against us. All parts are in good working condition. Or if you don't see what need more parts. Brand: Wiseco eventide Johnson 399 twin part numbers: 2023 PS condition: new 2020 PS full piston kit rings new old stock, only ...(October 19th, 2017)
• Wiseco Rings 317 2042rs Hirth 634 Piston 300 (29.9% similar) Here is a new, original Wiseco 2042RS piston ring set, for one piston...(March 5th, 2015)
• 2046 Ps Wiseco Full Piston (24.1% similar) Standard size. Any questions concerns just ask. Something has caused your electrical part to burn out. Clothing all of our clothing is new with tags. All parts are in good working condition. Doing so is against us. Are tested on the machine that they were removed from. Brand: Wiseco part numbers: ...(October 19th, 2017)