Temperature Regulator (Water Temperature) 9N5121 for Caterpillar

The 9N5121 temperature regulator is a water-temperature control component for Caterpillar equipment and engines. It is used in Caterpillar machine, industrial, marine, and truck engine applications, as well as Caterpillar wheel tractor-scrapers. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed under the Caterpillar application name “Regulator-Temp (Water Temp.)”. The supplied application data identifies the 3208 and 3116 engine models and the 613C machine model. Fitment should be confirmed by comparing the equipment model, engine configuration, and the part number installed on the machine.

Fitment

• Caterpillar 3208 engines
• Caterpillar 3116 engines
• Caterpillar 613C wheel tractor-scrapers
• Caterpillar engine-machine applications
• Caterpillar industrial engine applications
• Caterpillar marine engine applications
• Caterpillar truck engine applications
• Caterpillar wheel tractor-scraper applications

Cross-reference numbers

Part numbers 9N5121 and 1028392 are listed for the same water-temperature regulator application. Use the number stamped or recorded for the existing component when checking interchangeability.

Specifications

The listed dimensions are 5.8 cm in length, 4.9 cm in width, and 6.1 cm in depth. The listed weight is 0.3 lb. The available product data does not specify the material, connection thread, opening temperature, gasket configuration, or additional components included with the regulator.

The regulator is identified for Caterpillar equipment in which the water-temperature regulator is specified by part number 9N5121 or cross-reference number 1028392. The model and engine application should be checked before installation.