Blackmer 812421 Nord Gearbox for GNX3 Pump 2.50 Ratio 250TC 720 RPM

Overview

Blackmer 812421 Nord Gearbox – GNX3 Propane Transfer PumpThe Blackmer 812421 Nord Gearbox is a genuine OEM speed reducer engineered specifically for Blackmer GNX3 propane transfer pumps. This gearbox delivers a 2.50:1 reduction ratio, producing an output speed of 720 RPM, ensuring safe, efficient pump operation in LPG service.Designed with a 250TC motor frame size, this gearbox is precision-matched for proper alignment, torque handling, and long-term durability in continuous-duty propane applications. It is commonly used in bulk propane plants, bobtail trucks, transport skids, and industrial gas transfer systems.Key

Specifications

OEM Blackmer / Nord gearbox assembly2.50:1 reduction ratio720 RPM output speed250TC frame sizeDesigned specifically for GNX3 pump applicationsKey Benefits:Ensures proper pump speed for propane transferHeavy-duty industrial gearbox constructionFactory-matched for GNX3 pump systemsIdeal for replacements, upgrades, or new installationsUsing the correct OEM gearbox is critical for pump safety, performance, and compliance.

Product details

Part / SKU	812421

Package includes

• Blackmer 812421 Nord Gearbox for GNX3 Pump 2.50 Ratio 250TC 720 RPM

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.