SUMO LR-541S – Solex to Weber / Zenith Carburetor Adapter Base

SUMO LR-541S – Solex to Weber / Zenith Carburetor Adapter Base

Product Description

The SUMO LR-541S carburetor adapter base is a precision-machined adapter designed to convert vehicles originally equipped with a factory Solex carburetor to accept a Weber or Zenith carburetor.

This adapter bolts directly to the intake manifold, providing a correct mounting interface so a Weber or Zenith carburetor can be securely installed in place of the original Solex unit. It is engineered to ensure proper alignment, sealing, and airflow when performing a carburetor conversion or upgrade.

The LR-541S eliminates the need for improvised spacers, modified plates, or reused factory adapters that are often warped, worn, or poorly sealed after decades of service.

Design & Construction

• Precision-machined adapter base for accurate carburetor positioning
• Flat, true sealing surfaces to prevent vacuum and intake leaks
• Designed to bolt directly to the intake manifold
• Provides proper mounting pattern for Weber or Zenith carburetors
• Maintains correct bore alignment and airflow characteristics
• Manufactured exclusively for SUMO

Application & Use

• Converts factory Solex carburetor applications to Weber or Zenith carburetors
• Suitable for restoration, service replacement, and carburetor conversion projects
• Designed for Land Rover and related British applications originally equipped with Solex carburetors

⚠️ Adapter only – carburetor selection and tuning are the responsibility of the installer

OEM Reference & Supersession (For Reference Only)

SUMO Part Number: LR-541S

Replaces commonly referenced factory adapter bases including:
• STC541
• Stamped reference ERC6082
• Supersedes earlier part number 554175

(SUMO parts are new production components, not remanufactured or modified originals.)

Why SUMO

Every SUMO component is designed with a focus on proper geometry, correct fitment, and long-term reliability. The LR-541S adapter base provides a clean, purpose-built solution for carburetor conversions—without the compromises of reused or improvised parts.

Whether used in a factory-style upgrade or a custom carburetor setup, the LR-541S delivers a solid foundation for reliable operation.

What’s Included

• (1) SUMO LR-541S carburetor adapter base

⚠️ Gaskets and mounting hardware not included unless otherwise specified