Description:
PP-99356A2 Power Steering Oil Cooler
The PP-99356A2 MerCruiser Power Steering Oil Cooler is a raw-water-cooled shell-and-tube hydraulic oil cooler designed to control the operating temperature of power steering fluid on MerCruiser steering systems.
Hydraulic steering oil flows through the internal tube bundle while raw water passes through the shell, dissipating heat generated during manoeuvring and low-speed operation. Maintaining correct oil temperature protects the power steering pump, valves, hoses, and seals, ensuring consistent steering performance.
Suits MerCruiser / Mercury Marine
• MerCruiser petrol and diesel engines
• Alpha & Bravo sterndrives with hydraulic power steering
• Common on 4.3L, 5.0L, 5.7L, 350 MAG, 454 MAG, 502 MAG (fitment dependent on steering system and year)
Replaces / Cross-Reference
• Mercury / MerCruiser: 99356A2
• Superseded Mercury numbers: 8M0152028, 8M0181740