QA1 27885-3M 27 Series Monotube Shock Absorber 12.8in Compressed 21.38in Extended Stud/Poly Mount

The QA1 27885-3M is part of QA1's 27 Series — a stock-mount, large-body monotube shock absorber designed for performance street and race applications. With a 12.8-inch compressed length and 21.38-inch extended length, this shock features a stud upper mount and polyurethane lower mount (Stud/Poly configuration) and ships with a 3M valving for a firm, controlled ride.

The 27 Series builds on the proven architecture of QA1's 26 Series while upgrading to a large-body steel housing with a zinc-plated exterior finish for corrosion resistance. The 46mm hard-anodized piston delivers consistent, fade-resistant damping under demanding conditions. The monotube design separates oil and nitrogen gas, providing superior heat dissipation and more precise damping response compared to twin-tube designs.

Key Features:

• Large-body monotube design — superior heat management and consistent performance
• 46mm hard-anodized piston — resists wear and delivers precise damping
• Zinc-plated steel body — corrosion-resistant finish for long service life
• Stud/Poly mount configuration — stock-style upper stud, polyurethane lower bushing
• 3M valving — firm valving tuned for performance street or light competition use
• 12.8" compressed / 21.38" extended lengths — direct stock-mount replacement sizing
• Multiple valving options available across the 27 Series lineup

The QA1 27 Series is engineered as a direct-fit, stock-mount upgrade for enthusiasts seeking improved handling and damping performance over OEM shocks without requiring custom fabrication. The MPN 27885-3M corresponds to the large steel body variant in the 5-3M valving/mount family.