See all Handlebars & Controls products

RSI Billet Throttle Block With Push Button Kill Switch and OEM Connectors Polaris



Model #TB-4-C

Shopper Award

RSI is a high performance controls manufacture with the worlds most advanced products in the snowmobile/UTV/ATV industry. Please keep checking back as the company releases new innovative products yearly.


  • CNC Machined 6061 T-6 billet aluminum
  • Direct replacement throttle block assembly is smaller and stronger than stock
  • 2 piece design clamps solid onto handlebars and will not spin or pop off handlebar when tree bashing
  • Slim design opens up much needed handlebar space for clamping on accessories like handguards, mountain bars, GPS etc
  • Built in wire channels for heater wires to pass through offering a clean look and Installation
  • Uses stock throttle lever and lever pivot

Other Part Numbers:
RSI #590-00133

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

RSI | Throttle Levers and Grips

RSI manufactures is a high-performance control product with the world's latest products in the snowmobile/UTV/ATV industry. RSI establishes, produces, and provides high-quality automotive products in a number of countries across the world. The products at the company are made with great precision and expertise.

They are easy to install and ensure to deliver a top-quality experience. RSI has almost everything that is required for the handlebars. The design of it is so that it is compatible with hand warmers. The RSI heater part fits OEM stock handlebars and is sold particular to the brand to fit the wiring terminals, features a high-power heating element that keeps the grip warm in cold weather.

The product line of RSI is quite vast and includes alloy wheels which further include ATS, Wolfrace, Butzi, Ultralite, JR Japan racing, Buddy Club, Drag wheels, Volk Rays Engineering, and XXR wheels. Brake technology includes Brake Discs, Brake pads, Brake kits, and Brake Accessories. Suspension Technology Shock absorbers (dampers), lowering spring kits, sport suspension kits, coil-overs, top mounts, lower arm kits, airlift kits, drop links, control arms, aluminum stabilizers, aluminum lower control arm kits, bump stop, wheel space adapter, and strut braces and kits.

Exhaust Technology Racing systems, Duplex exhaust Systems, Header/Manifolds and Build your own system parts. Service items include air filters, oil and fluids, batteries, and tires. Lighting includes headlights, taillights, fog lights, and indicators. Tools include a Coil-over C spanner and spring clamps.

Find High-Quality RSI Only at Vivid Racing

The RSI products available on the Vivid Racing website include RSI 1 inch rise black hustler handlebar, RSI 2 inch rise black boondoggler handlebar, RSI 7 inch blue grips, RSI 7 inch black grips, RSI 7 inch swirl grips, RSI accessory power splitter polaris, billet throttle block with OEM terminals, billet kill ski doo g4 2021 and many more.

From fitment help from our in-house experts to shipping packages, we'll care for you and your RSI. We know how much of a financial investment you're making in a set of RSI and accessories and upgrades. In return, we'll deliver a service and product second to none.

At Vivid Racing, we love cars. They are our vice in life. We love the automotive community and love our customers who think like us.

Finding a perfect aftermarket product is not an easy job. We fully understand it, and we are here to help you find the best modifications for your car.

We specialize in double takes! Our passion is simply helping you build the car you always dreamed of. Everyone has their favorite look, color, effect, and desires, and we are here to help you achieve your goal.

Vivid Racing ensures that they meet the customer's expectations regarding quality, size, and strength.

The company always provides quality RSI accessories for applications that need speed and good looks.

Vivid Racing carries high-performance parts for almost any need. Click these links to choose from our selection of Body Kits, Big Brake Kits, Seats, Custom Wheels and Tires, Engine Parts, Exhaust Parts, Intakes, Suspension, and Transmission Parts.

Buying from Vivid Racing is the best choice you can make. We back every part we sell with our guarantee of satisfaction.

Buy online or give one of our world-class sales professionals a call at 1-480-966-3040. If you don't see what you are looking for, Call Us.

We can help. Vivid Racing was voted #1 in customer service nationwide!

Vivid Racing carries Performance Ignition Parts from all the top manufacturers in the automotive industry. Our manufacturers include Bosch, Delphi, Eurospare, Karlyn STI, NGK Spark Plugs, and many more!

Hands-On Experience and Professionalism are what make us the best.

Are you tired of paying the dealers' overly inflated prices for their parts? Vivid Racing can save you up to 60% off the dealers' prices. Click here to visit our OEM PARTS STORE.

Check out these other great products