-9%

QA1 DS401 Proma Star Single Adjustable Coil-Over Shock. 10.125/14 Comp/Ext

-9%

QA1 DS401 Proma Star Single Adjustable Coil-Over Shock. 10.125/14 Comp/Ext
QA1

|

#721DS401

QA1 DS401 Proma Star Single Adjustable Coil-Over Shock. 10.125/14 Comp/Ext

  • They are 100% dyno tested and serialized
  • Has simultaneous compression and rebound adjustment
  • One knob allows you to choose from 18 valving options
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Compressed/Extended:

10-1/8"-15"

15"-22-5/8"13"-19-1/2"12-5/8"-18-3/4"11-5/8"-16-7/8"11-1/8"-15"9-1/2"-12-3/4"8-3/4"-11-1/8"

$239.95

/each

In Stock

$265.82

Save $25.87


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Product Summary

Universal Fit, Rear Position, 12" Mounted Length

  • They are 100% dyno tested and serialized
  • Has simultaneous compression and rebound adjustment
  • One knob allows you to choose from 18 valving options
  • Features a precision machined aluminum piston with a PTFE piston band
  • Includes a 5/8" centerless ground, hard chrome plated, solid piston rod
See more details

Key Specs

PositionRear
Mounted Length12"
Shock AdjustabilitySingle Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
See more specs

Need To Know

Need help?

855.313.9176
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QA1 DS401 Details

With QA1's Proma Star single adjustable coil-over shock, you can easily adjust your compression and rebound valving and get the hard-core performance you need. One knob allows you to choose from 18 valving options that adjust both compression and rebound valving simultaneously, allowing total suspension control in one easy-to-reach location.

  • Simultaneous Compression and Rebound Adjustment
  • Coil-Over
  • Lightweight Aluminum
  • Ride Height Adjustable
  • Spring Mounting Hardware Included
  • 100% Dyno Tested and Serialized
  • Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers
  • American Made
  • Precision Machined Aluminum Piston with PTFE Piston Band
  • 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod
  • Three Step Sealing System

Warranty Information

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QA1 DS401 Specifications

KEY SPECS
MFG. Part #DS401
BrandQA1
PositionRear
Mounted Length12"
Shock AdjustabilitySingle Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
Shock Stroke4.00
Upper Shock Mount1/2" Spherical Rod End
Lower Shock Mount1/2" Spherical Rod End
Height AdjustableYes
FinishAnodized
GENERAL
Compressed Length Range10.00" to 10.99"
Compressed Length10.13"
Extended Length Range14.00" to 14.99"
Extended Length14"
Spring Length9 - 10 Inch
Number of Valving Selections18
Mounted Length Range11 1/2" - 12 1/2"
Body Diameter2.00"
AdjustableYes
GTIN Code806990059710

Ratings & Reviews

5

8 Reviews

Overall Assessment

Customers appreciate the product for its adjustable dampening feature, mentioning its ease of use and improvement to ride quality. High-quality materials and practicality received positive feedback, with customers noting easy installation and suitability for both front and rear placement. Several customers prefer this product over others on the market due to its performance and affordable pricing. As a standout feature, its multiple damping/rebound adjustments were particularly well-liked, enabling customers to customize their experience. Overall, the product beat competitors in terms of usability, performance, and price.

Write A Review

5

8 reviews

5

8

4

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Yes I would buy again if needed

5.0

12 months ago

Superrat

Southern Indiana

Verified

Changed the rear suspension on my 33 Plymouth coupe

Would Recommend

QA1 quality as always

5.0

a year ago

mrv

williamsburg, VA

Verified

Using this on an Unser series universal front clip.

Would Recommend

Great product

5.0

2 years ago

Mr D.

Fountain Hills Arizona

I cannot say anything negative on this product. I replaced a set of Alden Americans that were shot. Now it rides perfect.

Would Recommend

I would buy again

5.0

2 years ago

Wayne D

Phoenix AZ

Adjustable dampening with the turn of a knob

Would Recommend

Great parts and an affordable price!!

5.0

4 years ago

Tony

Spring Hill fl

Verified

Fast shipping knowledgeable staff. Right part the first time..

Would Recommend

I would use this product again and recommned it to anyone

5.0

5 years ago

Rick

silver spring md 20904

Verified

Installed on my 34 3-window coupe on the front and rear. installation was a breeze.

Would Recommend

Made my deuce ride like a Caddilac!

5.0

5 years ago

Waydel

Fountain Hills AZ

Verified

I use these to replace another big name coil overs that were worn out, on my 32, 5 window coupe, easy install and with the multiple damping/rebound adjustments I set them on 4 and the ride and handling is fantastic. QA 1 hit a home run with this product.

Would Recommend

Customer review image

Yes Great

5.0

7 years ago

Bernd

Black Forrest Germany

Verified

Great Shock want buy more

Would Recommend

Showing 8 of 8 reviews

Questions & Answers

2 Questions • 2 Answers

Does the unit have or come with a bump stop?

by Roddy

• 8 years ago

1 answer

View Answer

I need a spring for this unit. 9" , 750# . No such spring on the QA1 site. This shock is the correct length for my RH.. their site recommends a 9" spring for this shock, DS401

by Troy

• 9 years ago

1 answer

View Answer

2 of 2 questions shown

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