Customer Appreciation Week 2026

Shock Extensions for Large Body Bilstein, 2", M12-1 Metric Thread

Customer Appreciation Week 2026

Shock Extensions for Large Body Bilstein, 2", M12-1 Metric Thread
Speedway Motors

|

#3917484

Shock Extensions for Large Body Bilstein, 2", M12-1 Metric Thread

  • M12-1 metric thread
  • Works only with Bilstein large body shocks
  • 2.625" overall length
See More

Length:

2 Inch

1 Inch

$21.99

/pair

In Stock

$24.99

Save $3.00


Quantity

Need Help? Call to Order

Add to a list

Share

Select a vehicle to verify Fitment

Select Vehicle

Product Summary

2.625" Overall Length, 0.625" Thread Length

  • M12-1 metric thread
  • Works only with Bilstein large body shocks
  • 2.625" overall length
  • 0.625" thread length
  • Sold in a pair of two
See more details

Key Specs

MFG. Part #3917484
BrandSpeedway Motors
Overall Length2.625"
See more specs

Need To Know

Need help?

855.313.9176
View the Help Center

Quick and Easy Returns

Return Policy

Speedway Motors 3917484 Details

  • Steel shock stud extenders
  • Extensions fasten directly to Bilstein 46mm large body shock absorbers for added suspension travel
  • 2 Inch, M12-1 Metric thread
  • Works with Bilstein large body shocks only
  • Sold as a pair

Speedway Motors 3917484 Specifications

KEY SPECS
MFG. Part #3917484
BrandSpeedway Motors
Overall Length2.625"
GENERAL
Thread Length0.625"

Ratings & Reviews

5

5 Reviews

Overall Assessment

Customers rave about the product's high-quality materials and ideal functionality. They found it perfect for setting the shock stroke and appreciated its role in tuning the suspension. The product is noted to work seamlessly, providing the shock more travel and improving overall performance. Consumers commend the product's practicality and ease of installation, referring to it as the perfect part for their needs and even preferring it to competitors' offerings. It stands out for its sturdy build, effective operation, and compatibility with their cars, leading many to recommend it and express intentions of repurchasing.

Write A Review

5

5 reviews

5

5

4

0

3

0

2

0

1

0

Filter by Ratings

Second set I've purchased

5.0

a year ago

RS

Box Elder SD

Verified

These extensions worked perfectly on my shocks.

Would Recommend

I would buy the product again and again

5.0

6 years ago

Voodoo racing chassis

Gaffney South Carolina

Verified

Simply remove the lower shock eye and put the extension on and reinstall the shock eye

Would Recommend

Good

5.0

7 years ago

BE

Stockton, MO

Verified

As described

Would Recommend

High quality, and worked perfectly.

5.0

10 years ago

Btaylor55

Greeneville, TN

Verified

These worked perfectly to allow my shock to have more travel.

Would Recommend

Perfect for setting shock stroke

5.0

14 years ago

Scott

Cincinnati, Ohio

Verified

These are perfect for setting the shocks in their "Sweet Spot" of shock travel at the adjustable ride height on my car for tunning the suspension. It is imporatnt to get the shock in the center of its travel no matter where the car is sitting and these were the perfect part for the job!

Would Recommend

Showing 5 of 5 reviews

Questions & Answers

6 Questions • 6 Answers

I ordered the M12-1.25 shock extensions - the threads are too short to install the rubber washer, steel washer and nut - not even close, there has to be a trick to installing these?

by Steve

• 7 years ago

1 answer

View Answer

How do I measure what size of extensions I need for my sport mod

by Matthew

• 7 years ago

1 answer

View Answer

Will these fit the Bilstein 5100?

by Nicholas

• 7 years ago

1 answer

View Answer

will these fit on the Bilstein 5160 shocks?

by Jimmy

• 7 years ago

1 answer

View Answer

Will these fit 24-069274?

by Mike

• 8 years ago

1 answer

View Answer

would this fit bilstein 4600 shock46 mm large body

by kekey

• 11 years ago

1 answer

View Answer

6 of 6 questions shown

Customer Impersonation Script