JAMES GASKET Low Speed Adjustment O-Ring - Big Twin 27892-78

Precise carburetor tuning hinges on reliable low-speed adjustment components, and this JAMES GASKET O-ring is engineered to maintain a consistent seal under repeated adjustment cycles. A worn or compromised seal causes fuel mixture inconsistencies that rob your Big Twin of throttle response and idle stability. This OEM-quality replacement restores proper carburetor function and ensures your tuning adjustments stay locked in where you set them.

JAMES GASKET has been the trusted name in Harley-Davidson gasket and seal technology for decades, and this low-speed adjustment O-ring carries that same commitment to precision manufacturing. Whether you're dialing in a stock carburetor or fine-tuning a modified setup, this part delivers the reliability that separates dialed-in performance from frustrating tuning drift.

• Fits Big Twin models
• Harley part number 27892-78
• OEM-equivalent quality
• Low-speed adjustment seal
• Made in the U.S.A.
• Bolt-on replacement