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  See all Suspension products
QA1 7" Length 4-13 Valve Rebound Adjustable 5Q Series Twin Tube Large Body Circle Track Shock - 5Q74-13R
QA1 7" Length 4-13 Valve Rebound Adjustable 5Q Series Twin Tube Large Body Circle Track Shock - 5Q74-13R - Image 3 QA1 7" Length 4-13 Valve Rebound Adjustable 5Q Series Twin Tube Large Body Circle Track Shock - 5Q74-13R - Image 2 QA1 7" Length 4-13 Valve Rebound Adjustable 5Q Series Twin Tube Large Body Circle Track Shock - 5Q74-13R - Image 3

QA1 5Q74-13R Twin Tube Shocks

When it comes to performance on the track, the QA1 5Q74-13R twin tube shocks are engineered to meet the demands of serious racers. These shocks, previously known as the 51 and 53 series, are designed with a large steel body that ensures durability and reliability in various racing conditions.

Key Features

  • Rebuildable Design: The 5Q74-13R shocks can be easily re-valved and rebuilt by racers in just a few minutes with basic tools, making maintenance a breeze.
  • Two-Piece Construction: The two-piece body design allows for straightforward disassembly and reassembly, enhancing convenience during maintenance.
  • Efficient Assembly: The gland features relief cuts and a hyper screw port, simplifying the filling and bleeding process during assembly.
  • Leak Minimization: An upgraded seal kit significantly reduces leaks, particularly beneficial in high-rebound applications.
  • Simplified Rebuild Process: The compression tube employs a slip-fit design, which streamlines the rebuild process.
  • Easy Identification: A laser-engraved, black-anodized closure nut allows for quick reference to serial numbers and valving, whether at the track or in the shop.

Specifications

  • Type: Twin Tube
  • Body Diameter: 2-1/16"
  • Body Material: Steel
  • Body Finish: Black zinc
  • Mounting: Bearing Mount
  • Adjustable Valving: Rebound-adjustable
  • Piston Type: Linear or Linear Digressive
  • Base Valve: Yes
  • Gas Charged: No
  • Coil-Over Compatible: Yes (requires separate kits)
  • Applications: Street Stock, Hobby Stock, B-Mod/Sport Mod, Modified

Fitment Options

The 5Q74-13R shocks are versatile and can be used in coil-over configurations with the appropriate kits (sold separately). Here are some compatible spring options:

  • CK5Q70-2-1/2" ID Spring for 7" shock
  • CK5Q71-5" OD Spring for 7" shock
  • CK5Q90-2-1/2" ID Spring for 9" shock
  • CK5Q91-5" OD Spring for 9" shock

Product Reviews

"These shocks have truly changed my racing game. The ability to quickly adjust the rebound settings on the fly has made a noticeable difference in handling." - Local Racer

"I appreciate how easy it is to rebuild these shocks. The two-piece design is a game changer for maintenance during the racing season." - Weekend Warrior

"The build quality is impressive, and the black zinc finish not only looks great but also holds up well under tough conditions." - Track Enthusiast

"Having the option to valve the shocks with bleed shims has allowed me to fine-tune my setup perfectly for different tracks." - Competitive Racer

"I love how the laser-engraved closure nut makes it easy to keep track of my settings. No more guessing at the track!" - Amateur Racer

Watch and Learn

Other Part Numbers:
QA1 #qap5Q74-13R

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is QA1?

QA1 is a company that was founded in 1993. They specialize in manufacturing high-quality suspension parts, shock absorbers, composite driveshafts, bearings, steering components, and other related accessories. Their products are used in different industries such as the industrial, motorsports, and automotive sectors. Today, they are the leading manufacturer of OE parts in the market.

Suspension Experts

The company is best known for its motion control sub-assemblies and wide range of suspension systems. They are always searching for new ways to develop each component to enhance their products further. 

State-of-the-Art Facility

The company is housed in one of the most sophisticated facilities in the market to accommodate the increasing demands of its customers. With 100,000 square feet at their disposal, their facility contains high-tech equipment such as a CNC machine, laser cutting equipment, hydraulic presses, and filament windings. It allows them to manufacture the best product in the market.

QA1 is also one of the few companies that are ISO certified. It guarantees that their parts are manufactured consistently, following the standards put in place by the company and the regulators.

Purchase QA1 Products At Vivid Racing

If you are in the market for quality suspension parts for your vehicle, then QA1 is the brand for you. They have been manufacturing components for the last 28 years and have consistently given their customers parts that meet their demand. To know more about QA1, visit Vivid Racing and check out their list of parts that meet your demand.



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