QA1 27A683-5M 27 Series Monotube Steel Shock Absorber T-Bar/Poly 3-5M IMCA Sealed

The QA1 27A683-5M is a stock mount monotube shock absorber from QA1's 27 Series, purpose-built for circle track racing and engineered to meet IMCA sanctioning body requirements. With a sealed design and a 3-compression / 5-rebound (3C-5R) linear valving configuration, this shock delivers consistent, predictable damping performance lap after lap.

Key Features:

• Stock Mount Design – Fits in place of OEM shock mounts with no chassis modifications required
• 46mm Hard Anodized Piston – Large-diameter piston provides superior control and consistency over smaller piston shocks
• Zinc Plated Steel Body – Corrosion-resistant finish protects against the harsh environments of circle track racing
• T-Bar / Poly Lower Mount – Compatible with T-bar and polyurethane bushing lower mount configurations
• Linear Valving (3C/5R) – Factory-set 3-compression / 5-rebound valving tuned for predictable, balanced handling
• IMCA Sealed – Factory sealed to comply with IMCA (International Motor Contest Association) rules and regulations
• Extended Length: 22.55 inches / Collapsed Length: 13.35 inches
• 100% Dyno Tested & Serialized – Every unit is individually tested and serialized for quality assurance
• Made in the USA

The QA1 27 Series builds on the proven performance of the 26 Series platform while adding a stock mount form factor — making it an ideal upgrade or replacement for racers who need IMCA-legal damping without sacrificing real-world performance. Backed by QA1's one-year warranty against defects in materials and workmanship.