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QA1 DS403

Single Adjustable Shock Compressed Height: 11-1/8"

QA1 DS403


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QA1 DS403 Single Adjustable Shock Compressed Height: 11-1/8" $171.99
Single Adjustable Shock
  • Compressed Height: 11-1/8"
  • Extended Height: 15"
  • Ride Height: 12-1/2" to 13-1/4"
  • Spring Length: 10"
  • Mounting: Bearing

  • Specifications:

    Extended Length (in.)
    Bushing Material
    Hardware Included
    Body Diameter (in.)
    Gas Charged
    Adjustable Mounting Bracket Included
    Adjustable Valving
    Bushing Color
    Coil-Over Shock Type
    Coil-Over Springs Included
    Internal Design
    Number of Valving Selections
    Sold individually
    Recommended Spring Diameter (in.)
    Recommended Spring Length (in.)
    Shock Body Finish
    Clear anodized
    Shock Body Material
    Collapsed Length (in.)
    Upper Mount
    Lower Mount
    Manufacturer's Part Number:

    Simple Adjustability, Quality Construction

    QA1 Offers their machined aluminum bodied Proma Star Coil over shocks with a 5/8" chrome-plated solid piston rod and a double lipped piston with wiper seals for incredible quality and reliability. The QA1 Proma Star shocks are available in two versions, an 18 position single adjustable or a 324 position double adjustable to perfectly match your application and driving style. The QA1 Proma Stars are the perfect shocks for Street Rods, Street Performance, Auto Cross, Drag Racing, or Road Racing.

  • Single or double adjustable shock
  • Single offers 18 valving options (one knob to simultaneously adjust compression and rebound)
  • Double offers 324 valving options (two knobs to independently adjust compression and rebound)
  • Machined aluminum body, bright anodized finish
  • 5/8" chrome-plated solid piston rod eliminates piston rod flex
  • Double-lip and wiper seals prevent seal drag and dirt intrusion
  • PTFE/Kevlar race bearings or polyurethane bushings available
  • Accurate piston to cylinder wall seal improves valving consistency and durability
  • Deflective disc for increased sensitivity in valving response, control, and consistency
  • Dyno tested and serialized for consistent production and performance
  • Revalvable and rebuildable by QA1 authorized service centers
  • Aluminum spring cap, spring seat with washer, and locking ring included
  • Ride heights (below) are recommended by QA1
  • Proudly Made in Lakeville, MN USA!

    *Sold 1/pkg

  • DS403 - QA1 Proma Star Coil-Over Shocks is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Top quality stuff with best price and availability I use the QA1 in all my customers Cobra builds as well as in my own car. You can specify part by dimensions rather than being stuck with application. This of course is great for custom builds and builders. Add the quality of QA1 with the retail support and prompt shipping from Jegs and it's a win win.
    Date published: 2016-11-17
    Rated 5 out of 5 by from Perfect Fit! Used these as replacements on front of my UTV. My springs slid right over them.
    Date published: 2016-08-14
    • y_2018, m_5, d_19, h_6
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    • clientName_jegs

    How do you know what shock lengths fit your vehicle without removing them?

    Asked by: Kenmo
    This is a coilover shock and you will need to measure the coil overs you are replacing, You will need the extended and collapsed length of your current suspension set up.
    Answered by: Rusty B
    Date published: 2018-01-08
    • y_2018, m_5, d_20, h_7CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations