- SL Class 221 Type S550 Awd 2013
Mercedes SL Class 221 Type, S550, AWD - Engine (2013)
4.5 on Trustpilot · 335 reviewsHow ordering works
- 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
Split this into easy monthly payments
Pre-qualify with PayTomorrow in minutes — all credit types welcome, and checking your options won’t affect your credit score. You’ll see your approved amount and terms instantly.
⚡ Instant decision · 🛡 Soft check (no score impact) · ✅ All credit types welcome
Pre-qualify now — it’s free →Financing provided by PayTomorrow, a third-party lender. Approval, rate, and terms are set by the lender. Not a guarantee of approval.
About this part
Enhance Your 2013 Mercedes SL550 4MATIC Performance with OEM M278 Engine
Bring back your R231 SL550's commanding power with our OEM-certified M278 4.7L BiTurbo V8 engine, specifically configured for 4MATIC AWD models.
Engine Specifications:
| Category | Details |
|---|---|
| Displacement | 4.7L BiTurbo V8 |
| Engine Code | M278 DE 46 AL |
| Horsepower | 429 HP |
| Torque | 516 lb-ft |
| Fuel System | Direct Injection |
| Block Material | Aluminium alloy |
Compatibility
2013 Mercedes-Benz SL550
4MATIC AWD Models Only
Pricing Options:
| Mileage Range | Price | Condition |
|---|---|---|
| 30K-60K miles | $ 7,504.90 | Low-mileage, full history |
| 60K-90K miles | $ 6,844.50 | Excellent, minor wear |
| 90K-120K miles | $ 6,370.00 | Good, may need gaskets |
| 120K-150K miles | $ 5,850.00 | Functional, needs seals |
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.
Shipping Information:
Dimensions: Length 44"× Width 32"× Height 34"
Weight: 485 lbs
Shipping Options:
Standard shipping 5-7 business days
Expedited shipping are available for an extra cost
Frequently Asked Questions?
Q: Does this include both turbochargers?
A: This Mercedes SL Class 221 S550 AWD engine from 2013 is a powerhouse designed for performance, but this listing includes the engine only—turbochargers are not part of the package. If you’re aiming for full boost, those turbos need to be sourced separately.
Q: Are engines tested for quality before shipping?
A: All our engines are carefully inspected by certified experts to ensure quality. They undergo tests for noise, leaks, and compression. We only offer top-grade, reliable engines.
Q: How does my engine arrive?
A: Your engine is securely shrink-wrapped and mounted on a 3x3 pallet, drained of all fluids. It ships safely via trusted carriers like FedEx, R&L, XPO, or YRC.
Ready to Order?
This engine offers durability and precision engineering tailored for your Mercedes. Ready to install and get your SL Class back on the road with confidence.
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.
Your deal’s already in your cart
Applied automatically — no code needed. Call now and we’ll do even better.