1. Motorcycle Intake & Fuel Systems Deals
  2. sku: 19706998939027623
  3. BOYESEN RAD42X

BOYESEN RAD42X Valve 804429501342

Rad42x Boyesen Rad Replacement Valve

( Brand: Boyesen ), ( Manufacturer Part Number: RAD42X ), ( Part Type: Valve ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Country/region Of Manufacture: United States ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( Authorized Dealer: Yes ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Vehicletype: Offroad ), ( UPC: 804429501342 )

Review BOYESEN Rad Replacement Valve

Boyesen Rad42X Rad Valve - Enhance Your Engine's Performance and Efficiency

The Boyesen Rad42X Rad Valve is a revolution in the realm of high-performance engine accessories, designed to optimize the cooling system of your vehicle for unparalleled results. This rad valve, engineered by Boyesen, a renowned name in the automotive industry, is a testament to the company's commitment to innovation, quality, and exceptional performance.

The Boyesen Rad42X Rad Valve is a unique solution for those seeking to boost the cooling efficiency of their engine. It is specifically designed to reduce heat buildup under high RPMs, an issue particularly prevalent in high-performance engines. This rad valve achieves this by utilizing a unique venturi design that allows coolant to flow more efficiently, ensuring optimal engine temperature and longevity.

The Rad42X Rad Valve is a direct replacement for the stock radiator cap, making installation a breeze. It is compatible with a wide range of engines, making it an versatile addition to your vehicle. The valve's durable construction, coupled with its high-quality materials, guarantees longevity and reliability, even under the most demanding conditions.

With the Boyesen Rad42X Rad Valve, you can expect improved engine performance, increased power output, and enhanced cooling efficiency. It is the perfect choice for enthusiasts, racers, and anyone seeking to get the most out of their vehicle's engine. Upgrade your engine cooling system today with the Boyesen Rad42X Rad Valve, and experience the difference in performance and efficiency.

The Boyesen Rad42x Rad Valve is a performance upgrade for ATVs and dirt bikes, designed to enhance cooling efficiency. Here are the pros and cons of purchasing this product:

Pros:

1. Improved Cooling Efficiency: The Boyesen Rad42x Rad Valve increases coolant flow to the radiator, reducing engine temperatures during intense riding conditions, thereby improving engine longevity and performance.

2. Easy Installation: The installation process is straightforward and can be done without professional assistance, saving you installation costs.

3. Increased Power: By reducing engine heat, the Boyesen Rad42x Rad Valve can help your engine produce more power, improving your overall riding experience.

4. Durable Construction: The valve is made from high-quality materials, ensuring it can withstand the rigors of off-road riding.

Cons:

1. Cost: The Boyesen Rad42x Rad Valve is more expensive compared to some other cooling system upgrades in the market.

2. Potential Compatibility Issues: Ensure the valve is compatible with your specific model of ATV or dirt bike before making a purchase.

3. Risk of Overcooling: If incorrectly installed or used in cold conditions, the Boyesen Rad42x Rad Valve could lead to overcooling, which may cause engine components to freeze or malfunction.

In conclusion, the Boyesen Rad42x Rad Valve offers significant benefits in terms of cooling efficiency, power output, and durability. However, its higher cost and potential compatibility issues are factors that should be considered before making a purchase. If you primarily ride in hot conditions and want to improve your engine's performance and longevity, the Boyesen Rad42x Rad Valve is a worthwhile investment. Ensure to follow the installation instructions carefully to avoid any issues related to overcooling.

Details:

An aery-form reed replacement valve that corrects the problems associated with existing designs. 1-piece aluminum casting; no manifolds to trim or plastic pieces insert. Maintains flow velocity through the replacement valve and re-directs intake charge for even distribution to ports. Comes with boots fits Khan carbs.

Boyesen Pro Series RAD Reeds included. Vehicle Fitment: 1990 1997 fits KTM 250 EXC, 300 MXC, 1996 1997 360 EXC Provides quicker, sharper throttle response and more horsepower.

part #: rad42x prices

  • $179.95-$199.99

specifications intakefuelmotorcycle:

  • brand: Boyesen
  • mpn: Rad42x
  • part type: Valve
  • california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
  • country/region of manufacture: United States
  • manufacturer warranty: 1 Year Manufacturer Warranty
  • authorized dealer: Yes
  • legal disclaimer: Your Local Laws Before Purchasing.
  • photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
  • vehicletype: Offroad
  • upc: 804429501342

shipping intakefuelmotorcycle:

  • transit: 3-7 Days
  • class: Expedited, Standard
  • cost: $0.00
  • service: Expedited, Standard
  • type: Fixed

offer intakefuelmotorcycle:

  • started: August 6, 2025
  • quantity: 2
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock

general intakefuelmotorcycle:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

seller intakefuelmotorcycle:

  • # reviews: 176506
  • rating: 97.8%
  • city: Cedar Park, Texas

returns intakefuelmotorcycle:

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

payments intakefuelmotorcycle:

  • other
  • credit card: Visa
  • wallet: Paypal
part type: valve, california prop 65 warning: cancer and reproductive harm www.p65warnings.ca.gov, country/region of manufacture: united states, manufacturer warranty: 1 year manufacturer warranty, authorized dealer: yes, legal disclaimer: your local laws before purchasing., photo disclaimer: for reference only, may differ from product, see item details., vehicletype: offroad,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, sku: 19706998939027623,
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3 offers $179.95–$199.99 USD
  • New. Offer #1 priced at $179.95 + $0.00 shipping estimate = $179.95* total. 1995 KTM 300. Boyesen Rad Valve.FREE SHIPPING
  • New. Offer #2 priced at $199.99 + $25.00 shipping estimate = $224.99* total. Made in the USA!.+$25.00 shipping
  • New. Offer #3 priced at $199.98 + $25.00 shipping estimate = $224.98* total. I have installed both the Boyesen Rad Valve and the V Force 3 reed blocks on this bike and prefered the power output with the Boyesen system installed.+$25.00 shipping

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