Product Summary

Dirt Late Model, Modified, Stock Car, 4 Rebound Valving

  • Features a large body, smooth monotube design
  • Engineered to dampen slow suspension movements more effectively
  • Built to take stress away from the chassis when going over sharp bumps
  • Upper and lower shock mount have a 1/2" spherical rod end
  • Shocks feature zinc finish and have a total of 8.5" of travel
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Key Specs

Shock TypeMono Tube
Shock Body MaterialSteel
Body Diameter2"
Shock Body TypeSmooth
Shock Body SizeLarge Body
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Need To Know

Made to Order

This custom item will ship when completed

Quick and Easy Returns

Return Policy

Bilstein S9Z4040 Details

These Bilstein mono tube gas shocks feature the latest development in shock valving technology; digressive valving. This delivers a new level of control by damping slow suspension movements more effectively while not allowing the chassis to be upset by sharp bumps.

Bilstein has set the standard for years in Indy Car, NASCAR, and Formula 1. Now it is setting the standard for Modifieds, Late Models and Open Wheel cars with these SZ Series S9Z shocks.

23.44" extended, 14.94" collapsed, 19.75" mounting, 8.5" travel.

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Bilstein S9Z4040 Specifications

KEY SPECS
MFG. Part #S9Z4040
BrandBilstein
Shock TypeMono Tube
Shock Body MaterialSteel
Body Diameter2"
Shock Body TypeSmooth
Shock Body SizeLarge Body
Shock Stroke Range9.00" to 9.99"
Compression Valving4
Rebound Valving4
Upper Shock Mount1/2" Spherical Rod End
Lower Shock Mount1/2" Spherical Rod End
Extended Length Range23.00" to 23.99"
Extended Length23.44"
Compressed Length Range14.00" to 14.99"
FinishZinc Plated
Compressed Length14.94"
GENERAL
Shock Stroke9.00
Coil-Over CompatibleYes
Valve Positions40 compression - 40 rebound
Bushing MaterialSteel
Inside Diameter46 mm
Shock Eyelet Width.630"
Bolt Hole Circle.500"
Hardware IncludedNo
Sold in QuantityEach
GTIN Code651860423081

Ratings & Reviews

5

2 Reviews

Overall Assessment

Customers highly appreciate the superior quality and performance features of the Bilstein Shocks. They effectively solve handling issues, notably improving the functionality of pro stocks. The practical aspect of the shocks is commended, making them worth the investment. No competitor produces results as notable as those achieved by these shocks.

5

2 reviews

5

2

4

0

3

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Bilstein Shocks

5.0

8 years ago

Ramone99

Amsterdam,NY

Verified

Great product,it solved our handleing issues on our pro stock.

Would Recommend

Worth the money

5.0

9 years ago

Jim

SD

Verified

Fast delivery, shocks work great.

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

What is the gas psi set at on these "off the shelf" standard valvings compared to an Afco 24 series or QA1 26 series?

by Fly51

• 12 years ago

1 answer

1 of 1 questions shown

Customer Impersonation Script