View 5 Photos View 0 Videos Caterpillar C12 Engine Brake for a Jacobs Brake 312A $1,800 USD Complet Set 312A Apllication C-12, Core Charge: 0 ConditionUsedFits To Make(s)Jacobs BrakeFits To Model(s)312APart Number312AStock Number9657 MLS Number9063010CategoryEngine Brakes / Jake Brakes Last Updated5/14/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info