QA1 27A686-1M 27 Series Monotube Shock Absorber Steel Body IMCA Sealed

The QA1 27A686-1M is a stock-mount monotube shock absorber from QA1's 27 Series lineup, purpose-built for IMCA-class dirt track racing applications. Featuring a zinc-plated steel body and a 46mm hard-anodized piston, this shock delivers consistent, repeatable damping performance lap after lap. With a collapsed length of 13.35 inches and an extended length of 22.55 inches, it is engineered to fit stock mounting locations without modification.

The 27 Series builds on the proven design of QA1's popular 26 Series shocks, incorporating a monotube gas-charged design that separates the oil and gas charges for improved heat dissipation and fade resistance. The T-Bar upper mount and polyurethane lower bushing configuration provides a direct replacement fit for a wide range of circle track applications.

Key Features:

• Monotube gas-charged design for superior heat management and consistent damping
• Zinc-plated steel body for corrosion resistance and long service life
• 46mm hard-anodized aluminum piston for durability and precise valving
• T-Bar upper mount with polyurethane lower bushing (T-Bar/Poly V configuration)
• IMCA sealed — legal for IMCA-sanctioned racing classes
• Collapsed length: 13.35 in. | Extended length: 22.55 in.
• Valving designation: 6-1M (compression/rebound tuned for circle track use)
• Stock mount design for straightforward installation without fabrication

The QA1 27 Series is an ideal choice for IMCA stock car, hobby stock, and sport mod racers looking for a reliable, rules-legal monotube shock with proven performance on dirt oval tracks.