The ACDelco / GM 84257137 is the OE radiator coolant recovery (surge) tank for 2017–2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD with the 6.6L Duramax diesel.

Features & Benefits

• OE coolant recovery / surge tank, GM P/N 84257137
• Supersedes GM 84138913, 84174037 and 84214124
• Genuine GM / ACDelco OE part, designed, engineered and tested to GM standards and backed by General Motors

Application

• Chevrolet Silverado 2500 HD / 3500 HD and GMC Sierra 2500 HD / 3500 HD with 6.6L Duramax diesel (2017–2019)

Always verify fitment by VIN or by matching the GM/ACDelco part number on your original part before ordering.

Cross-Reference / OE Numbers

• GM: 84257137
• Replaces GM: 84138913, 84174037, 84214124