- R Class 251 Type R500 2006, 2007
Mercedes R Class 251 Type, R500 - Engine (2006-2007)
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- 1Enter or confirm your VIN
- 2We verify exact fitment for your vehicle
- 3Flat freight shown up front — no surprises
- 490-day warranty included on every part
- 5We photograph & confirm the unit before it ships
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About this part
Mercedes-Benz R500 (W251) Engine For 2006-2007 Models
This powerful 302 HP V8 engine delivers smooth, confident performance for your Mercedes-Benz R500, combining luxury refinement with robust capability for this unique sports tourer.
Engine Specifications:
| Category | Details |
|---|---|
| Engine Code | M273 E55 |
| Displacement | 5.5L V8 |
| Aspiration | Naturally Aspirated |
| Horsepower | 302 HP |
| Torque | 339 lb-ft |
| Fuel System | Sequential Multi-Point Fuel Injection |
| Valvetrain | DOHC 32-valve |
| Transmission | 7-Speed Automatic |
| Drivetrain | 4MATIC AWD |
| Engine Block | Aluminum alloy block and heads |
Key Features:
Complete Long Block Assembly: Includes the fully assembled engine block, crankshaft, pistons, cylinder head, and valvetrain.
Includes Intake & Exhaust Manifolds: Comes with both manifolds pre-attached, saving installation time.
Backed by Warranty: Provides a reliable warranty on the entire assembly for peace of mind.
Pricing Options:
| Mileage Range | Price | Condition |
|---|---|---|
| 30K-60K miles | $ 2,956.20 | Like-new condition, minimal wear |
| 60K-90K miles | $ 1,402.70 | Light use, excellent condition |
| 90K-120K miles | $ 962.78 | Good condition, fully functional |
| 120K-150K miles | $ 731.64 | Budget option, may require minor service |
Shipping Information:
Standard shipping 5-7 business days.
Expedited shipping available for an extra cost.
Frequently Asked Questions?
Q: How do I confirm my R500 has the M273 engine?
A: The R500 for these model years exclusively used the M273 5.5L V8 engine. Verify with your VIN and check for R500 badging on the rear liftgate.
Q: What maintenance is critical for this engine?
A: Keep your Mercedes R Class 251 Type R500 engine running strong with simple care: change the oil regularly, keep the cooling system full and clean, and replace air filters and spark plugs on time. Check belts and timing to avoid breakdowns and keep the engine powerful. With steady upkeep, your engine will perform boldly every drive.
Q: What are common issues with the M273 engine?
A: The M273 engine in the Mercedes R Class 251 Type R500 is known for issues such as timing chain wear and problems with the camshaft adjuster, which can cause performance to suffer if left unchecked. Oil leaks and cooling system problems may also throw off your engine’s powerful flow.
Ready to Order?
Unleash the power of your Mercedes R Class 251 Type R500 engine today. Don’t wait own the road with an engine built for bold performance and reliability. Ready to elevate your drive.
Tested, VIN-matched, and guaranteed
VIN-Verified Fit
We match the part to your vehicle's VIN and confirm exact fitment before we ship — so it fits the first time. Free cancellation within 24 hours.
Works on Arrival, Guaranteed
Every unit is tested before it ships. If it arrives defective, we replace it fast — and in the rare case we can't replace it, you get a full refund.
90-Day Warranty
A real parts-replacement warranty, included — with extended coverage available.
Heavy freight item, shipped fully insured and tracked. Freight is a flat $250 commercial / $400 residential, shown at checkout — no hidden fees, no freight-quote runaround.
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