We recently acquired a large inventory of overstock items. These items are missing the manufacturer’s original packaging. They may also have minor cosmetic blemishes from storage (See Photos).

Product Name: Sen-Dure 1129-5-7 Marine Engine/Transmission Oil Cooler
Core Dimensions: Features a 2-inch outer shell diameter with an internal 9-inch core bundle length, resulting in a total length of approximately 11.75 to 12.5 inches depending on end fittings.
Oil Connection Ports: 3/8-inch NPT (National Pipe Thread) fittings standardized across the entire 1129 model family.
Water Connection Ports: 3/4-inch NPT fittings, designated specifically by the "5" in the Sen-Dure part numbering system.
Heat Exchanger Architecture: Standard shell-and-tube layout optimizing thermal transfer efficiency.
Shell Construction Material: Marine-grade copper and bronze alloy engineered to withstand harsh saltwater exposure.
Primary Application: Specialized for cooling high-temperature engine oil, transmission fluid, or hydraulic power steering loops.
System Pressure Rating: Rated for continuous standard marine fluid circuit working pressures up to 150 PSI.