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  • PQ3704 Front Upper  Lower Chassis Brace kit
  • Viewed from side, radiator on left, front differential is visible below brace (part shown is silver for photo clarity, parts shipped are powdercoated black)
  • RZR Package Deal

Chassis Brace Package; Front, Upper & Lower - Thunderhawk PQ3704

Your Price:
$109.99 (You save $34.51)

Product Description


Bolt-on, race-style upper brace
Strong lower brace

  • The Thunderhawk upper brace triangulates the front frame tubes and the steering rack crossmember for maximum strength
  • Bolt-on upper brace makes installation easy - NO welding required
  • Lower brace ties the frame sections together between the front upper control arm mounts
  • Reinforces and strengthens frame
  • Eliminates chassis flex
  • Aggressive trail riding or jumping causes chassis flex - Thunderhawk braces eliminate this problem
  • Durable black powdercoat finish
  • Complete, bolt-on kit installs easily in about 20 minutes
  • Fits 2008 - 2014 Polaris RZR 800, RZR-S 800, RZR-4 800 and 2012 & newer RZR 570
  • Does NOT fit vehicles equipped with a winch
  • Made in USA
  • Patent pending design

This exclusive Thunderhawk RZR front upper & lower brace kit offers unsurpassed strength in an easy-to-install, bolt-on package.

Race-built RZR's have been adding weld-in upper braces between the front frame tubes for years. Although this area of the frame should be strengthened on all RZR's, it's not practical for a regular RZR owner to tear their RZR down to the frame and then weld on a brace. Really, who's actually going to spend a full day and perform major surgery to their RZR just to add one brace? Well, Thunderhawk Performance has created a bolt-in chassis brace plate for the front frame that also reinforces the steering rack mounts (even the weld-in race gussets don't fix the steering rack mounts). Thunderhawk's patent-pending bolt-on design allows all RZR owners to easily install this triangulated brace in about 15 minutes using common hand tools - NO drilling, cutting, grinding or welding required.

Thunderhawk Performance has developed our patent-pending front upper chassis brace that triangulates the frame tubes, ties into the steering rack crossmember for superior frame strength and uses threaded fasteners for a completely bolt-on installation. By triangulating these frame tubes with the steering rack crossmember, this brace not only strengthens the frame tubes, but also adds significant strength to the steering rack crossmember. This design also offers superior torsional rigidity to resist twisting under suspension loads.

The Thunderhawk Performance front lower chassis brace for the Polaris RZR offers superior strength at a reasonable price. It is common for the RZR to experience significant flex in the front frame where the upper suspension arms are mounted. Polaris has left this area of the RZR frame completely un-supported, leading to damaging chassis flex. The Thunderhawk front lower chassis brace eliminates this problem by tying the frame together in this critical area. Reinforce and strengthen your RZR frame with this strong, easy-to-install lower brace.

After a steering rack mount failure during a race, Storm Miller added this Thunderhawk brace kit to his RZR 570 and went on to place second in the 2013 UTV Rally Raid Championship without any further steering rack problems. Both Thunderhawk Performance front chassis braces in this kit are bolt-on parts that require no welding, drilling or cutting for installation. This 2-piece kit installs easily in less than 30 minutes using common hand tools. These braces feature a black powdercoat finish for durability and good looks. Please Note: Photo of installed braces show metallic silver for photo clarity, all braces shipped out are black. Made in USA.

Warranty Information


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