Used 2009 Mercedes-Benz S550 / CL550 5.5L V8 Engine (M273)

🔧 Part #: 300-85556A
📦 Stock #: MM1303

Engine Specifications:

✅ 5.5L V8 Gasoline Engine
✅ Mercedes M273 Engine Family
✅ Naturally Aspirated V8
✅ Aluminum Block & Cylinder Heads
✅ DOHC, 32-Valve Configuration
✅ Tested and inspected before removal
✅ Complete long block assembly

Compatible Vehicles:

• 2009 Mercedes-Benz S550 AWD (W221 Chassis)
• 2009 Mercedes-Benz S550 RWD (W221 Chassis)
• 2009 Mercedes-Benz CL550 (C216 Chassis)

Engine Types:

Type A – 273.968

• Assembly: MB 2730104400
• Lower Oil Pan: MB 2730100127

Type B – 273.961

• Assembly: MB 2730104700
• Lower Oil Pan: MB 2730142202

Major Components:

• Crankshaft: MB 2730300701 (through 10/02/2008)
• Crankshaft: MB 2730301201 (from 10/03/2008)
• Right Cylinder Head: MB 2730104520
• Left Cylinder Head: MB 2730104420
• Intake Manifold: MB 2731400701
• Timing Cover: MB 2720151202
• Water Pump: MB 2732000201
• Harmonic Balancer: MB 2730300103
• Upper Oil Pan: MB 2730100027

Important Interchange Information:

⚠️ Type A (273.968) and Type B (273.961) engines interchange.

⚠️ The primary difference between the two versions is the lower oil pan configuration. Verify your original oil pan style before installation.

⚠️ Compare all external accessories, sensors, and emissions equipment prior to installation and transfer original components as needed.

Warranty & Shipping:

✅ Warranty Available
✅ Nationwide Shipping Available
✅ Local Pickup Available
✅ Commercial & Residential Delivery Available

Milford Motors Auto Parts

📍 112 Weaver Rd, West Milford, NJ 07480
📞 973-545-2999

Please call to verify stock, compatibility, mileage, warranty details, and shipping costs before purchasing or visiting.