V‑Twin Transmission Dipstick O‑Ring – Harley XL 2004‑2005, XL 2007‑2012 & FXD 2007‑2012 – OEM 11120 – Sold Each

OVERVIEW

This V‑Twin transmission dipstick O‑ring replaces degraded seals to stop fluid leakage and restore factory transmission pressure. Built from durable synthetic rubber, the component serves as a direct hardware upgrade or routine maintenance item for Harley‑Davidson Sportster and Softail drivelines.

ENGINEERING & PERFORMANCE

The gasket applies uniform radial force against the dipstick tube to prevent gear oil migration during rider load changes and temperature swings. Milled from a chemically resistant rubber blend, the seal suppresses heat hardening and maintains elasticity across prolonged exposure to transmission fluids. As an exact OEM‑dimensional replacement, the part slides straight into existing bores to reestablish a secure, vibration‑tight interface without machining or adapter plates.

KEY FEATURES

• Transmission dipstick sealing ring for XL and FXD platforms
• Taiwan‑made rubber compound formulated for heavy gear‑oil resistance
• Closes external leak paths to preserve torque transmission efficiency
• Identical to OE diameter and cross‑section for tool‑free swap
• Resists thermal expansion that causes cracking or permanent flattening
• Engineered exclusively for stock dipstick bore geometry
• Packaged and priced as a single unit

TECHNICAL SPECIFICATIONS

• Brand: V‑Twin
• Part Name: Transmission Dipstick O‑Ring (OEM 11120)
• Part Type: Hardware / Sealing Gasket
• Material: Synthetic Rubber
• Supported Years: 2004–2005, 2007–2012
• Compatible Harley Trims: Sportster, Softail

FITMENT

• Harley Sportster (2004–2005, 2007–2012)
• Harley Softail (2007–2012)

WHY HARLEY RIDERS CHOOSE THIS

Technicians and riders install this V‑Twin dipstick O‑ring to eliminate stubborn oil seepage that generic imports frequently fail to cure. The precision‑molded rubber cross‑section stays compliant under sustained clutch and drive strain, which keeps transmission fluid contained inside the primarycase and out of frame rails. By replicating the original 11120 profile, mechanics skip trial fitting and guarantee immediate pressure retention after overhaul. This targeted sealing solution delivers dealership reliability at a fraction of the cost, making it the logical step for keeping older XL and FXD models running clean.