NEW CAT 3406B & 3406E Older Flanged End Style Oil Cooler | 7W2164, 6N0169, 4N0619 | Caterpillar 3406B & 3406E

NEW replacement oil cooler for Caterpillar 3406B & 3406E engines. This is a brand new drop in replacement and requires no core we do have and recommend switching to the newer style offered as an option. This product features a one year warranty.

NOTE: This is the original "Flanged End" model oil cooler, part number 7W2164. We do offer the "UPDATED" newer version which boasts a larger diameter body for enhanced cooling capacity. Which you can see the second image. We strongly recommend upgrading from the older, flanged-end cooler to Caterpillar's new straight-end cooler, part numbers 7C3039 and 1330125. This updated design offers the same port sizes but features a larger central body for enhanced cooling capacity. The new cooler is listed below as a recommended product.

It's essential to replace the oil cooler after a major engine failure or during an engine rebuild. The primary role of an oil cooler is to regulate the temperature of the engine's lubricating oil, thereby maintaining optimal conditions for engine bearings. Overheated oil loses its lubricating properties and deteriorates rapidly. Investing in our high-quality oil coolers ensures both longer-lasting engine oil and enhanced engine longevity.