A0054662201 Power Steering Pump

Power Steering Pump A0054662201

The A0054662201 Car Power Steering Pump, also known as A0054662201 Power Steering Pump for BENZ, A0054662201 Power Steering Pump for MB and A0054662201 Power Steering Pump for MB CLK320, is an original-equipment quality hydraulic steering component engineered specifically for high-performance Mercedes-Benz passenger luxury vehicles. Designed to meet the precise fluid dynamics required by the M272 V6 and M273 V8 engine platforms, this premium vane-type pump delivers a continuous, highly regulated hydraulic pressure to the steering rack. This ensures effortless low-speed maneuvering, exceptional high-speed road feedback, and absolute vehicle stability under demanding driving conditions.

Manufactured in strict accordance with rigorous German automotive standards, this pump features a direct-fit replacement design that perfectly matches factory mounting positions. It successfully eliminates steering heavy spots, isolates hydraulic pressure pulsations, prevents fluid cavitation, and restores the original luxury steering responsiveness and whisper-quiet operation of your vehicle.

OE Direct Fit: Exact replacement for factory part numbers A0054662201 / 0054662201.

Linear Assist: Delivers precise, vehicle-speed-proportional hydraulic pressure for consistent steering effort.

Lightweight Aluminum: Constructed with a premium aluminum alloy housing to ensure efficient thermal dissipation and high structural integrity.

Splined Drive Shaft: Features a high-tensile splined drive shaft engineered specifically for Mercedes-Benz press-on triangular/multi-spoke pulleys.

Remote Reservoir Configuration: Designed for systems utilizing a remote fluid reservoir (Reservoir and Pulley are not included).

100% End-of-Line Tested: Every unit undergoes computerized pressure, flow, and sealing validation to mimic real-world Autobahn driving loads.

Micro-Finished internals: Ultra-precise internal rotor and floating vanes minimize friction, eliminate steering shudder, and drastically reduce pump whine.

Advanced Sealing Pack: Equipped with premium, temperature-resistant viton/lip seals to handle advanced hydraulic fluids without weeping.

● Aluminum Pump Housing: Lightweight, high-density aluminum alloy body engineered for perfect engine block mating and elite thermal conductivity.

● Splined Drive Shaft: Hardened steel shaft with precise spline teeth designed for exact interlocking with the OE serpentine belt pulley flange.

● Precision Inlet/Outlet Blocks: Features a top-mounted push-in suction inlet designed for the remote tank line, and a precision-threaded metric discharge outlet for the high-pressure steel lines.

● Heavy-Duty Internal Bearings: Low-friction, dual-row internal bearings engineered to handle high belt-tension loads and maximize the pump's operating lifespan.

● High-Pressure Seal Package: High-temperature resistant internal seals and specialized O-rings that prevent internal fluid bypass and fluid migration.

● Disconnect the vehicle battery before commencing the replacement procedure.

● Always cross-reference the vehicle's VIN and engine code (M272/M273) to ensure exact fitment before bolt-on.

● Important (Pulley Installation): Since this pump uses a splined shaft, always use a dedicated Mercedes-Benz pulley puller/installer tool to press the pulley onto the splines. Never use an impact gun or a hammer on the shaft, which will crack the internal aluminum thrust walls.

● Thoroughly drain and flush the entire power steering circuit (steering gear rack, lines, and remote cooling lines) to remove dark fluid, sludge, and wear debris before mounting the new pump.

● Clean the remote reservoir. If the internal mesh oil filter within the reservoir is clogged or contaminated, the reservoir MUST be replaced to prevent starving the new pump.

● Crucial (Fluid Type): Use ONLY genuine Mercedes-Benz approved fluid (Spec MB 345.0 / Pentosin CHF 11S). Never use standard ATF, Dexron, or universal steering fluids, as they will immediately destroy the high-pressure seals and cause loud aeration whine or pump failure.

● Replace the O-ring seals on both the high-pressure line and the inlet suction flange to avoid air leaks.

● System Bleeding: Raise the front wheels off the ground. Fill the reservoir, and with the engine OFF, slowly turn the steering wheel lock-to-lock at least 25-30 times to completely evacuate air bubbles. Start the engine briefly, verify fluid level, and check for foaming.

● Perform a test drive to confirm smooth, luxurious steering feedback, and check all fittings for fluid weeping.

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