PAI 831081 Valve Cover Gasket │ Replaces Mack/Volvo 1547594 ABS Sensor The 3937557S is an internal

The 3937557S is an internal reservoir element — not a spin-on power-steering filter

7L and 14L engines

and bolt-hole size before ordering

385C excavators

PAI 831081 Valve Cover Gasket │ Replaces Mack/Volvo 1547594 ABS Sensor The 3937557S is an internalPAI 831081 Valve Cover Gasket Replaces Mack Volvo 1547594 The PAI 831081 valve cover gasket is a direct fit replacement for Mack and Volvo D12 engine valve covers, cross referencing OEM number 1547594. Engineered to match factory sealing performance, this gasket helps prevent oil leaks and ensures proper engine envelope pressures. Ideal for heavy duty truck applications using the Mack Volvo D12 platform, its built to withstand thermal cycling and