The QA1 Stocker Star non-adjustable sport valve smooth body shock, part number TN507S, is a stock-mount billet aluminum shock absorber. Non-adjustable Sport Series valving delivers a fixed, performance-oriented ride with no tuning required. It is sized by its 9 in collapsed and 14 in extended length with stud / T-bar mounts. The lightweight smooth body housing is made in the USA, installs in the stock location, and is 100 percent dyno tested, serialized, and rebuildable through QA1 authorized service centers.
Specifications:
- Series: QA1 Stocker Star smooth body shock
- Adjustment: Non-Adjustable Sport Valve
- Length (collapsed / extended): 9 in / 14 in
- Mounting (top / bottom): stud / T-bar
- Body material: billet aluminum, smooth body
- Origin: made in the USA
- Testing: 100 percent dyno tested and serialized
- Service: rebuildable by QA1 authorized service centers
- Part number: TN507S
FAQ
What is the QA1 TN507S shock?
The QA1 TN507S is a Stocker Star non-adjustable sport valve smooth body shock with a 9 in collapsed and 14 in extended length and stud / T-bar mounts.
Is the QA1 TN507S shock adjustable?
Non-adjustable Sport Series valving delivers a fixed, performance-oriented ride with no tuning required.
What are the collapsed and extended lengths?
The TN507S measures 9 in collapsed and 14 in extended, with stud / T-bar mounting ends.
Is this shock made in the USA and rebuildable?
Yes. It is a lightweight billet aluminum smooth body shock made in the USA, 100 percent dyno tested and serialized, and rebuildable through QA1 authorized service centers.

