12-Month Warranty

Unlimited mileage on recon

Verified Fitment

Checked by registration

UK Nationwide Delivery

Fast & secure, 2-4 days

14-Day Returns

Uninstalled, full refund

Featured SL Engines in Stock

Ready-stock units with fixed, listed prices.

UsedMercedes M272 3.5 Petrol Engine

Mercedes M272 3.5 Petrol EngineSL R230 (SL350)

£3,150

In stock, ready to ship

Buy it now
UsedMercedes M276 Petrol Engine

Mercedes M276 Petrol EngineSL R231 (SL350/400)

£2,950

In stock, ready to ship

Buy it now
ReconditionedMercedes M275/M279 V12 Engine

Mercedes M275/M279 V12 EngineSL R230/R231 (SL600/SL65 AMG)

£11,500

In stock, ready to ship

Buy it now
ReconditionedMercedes-AMG M177 4.0 Twin-Turbo V8 Engine

Mercedes-AMG M177 4.0 Twin-Turbo V8 EngineSL R232 (SL55/63 4MATIC+)

£7,100

In stock, ready to ship

Buy it now
ReconditionedMercedes-AMG M139 2.0 Turbo Petrol Engine

Mercedes-AMG M139 2.0 Turbo Petrol EngineSL R232 (SL43)

£6,900

In stock, ready to ship

Buy it now
ReconditionedMercedes-AMG M157 5.5 Bi-Turbo Petrol Engine

Mercedes-AMG M157 5.5 Bi-Turbo Petrol EngineSL R231 (SL63 AMG)

£6,900

In stock, ready to ship

Buy it now

All 9 Engine Families for Mercedes-Benz SL

Select your generation to see compatible engines.

SL350 (R230, legacy)

M112 · 2001 – 2003

Petrol

SL500 (R230)

M113 · 2001 – 2006

Petrol
306 – 388 PSComing soon

SL600, SL65 AMG (R230/R231)

M275/M279 (V12) · 2001 – 2020

Petrol
493 – 630 PSView engine

SL63 AMG (R230)

M156 · 2008 – 2011

Petrol

SL350 (R230)

M272 · 2001 – 2011

Petrol
245 – 272 PSView engine

SL350/400 (R231)

M276 · 2011 – 2020

Petrol
306 – 367 PSView engine

SL500/550 (R231)

M278 · 2011 – 2020

Petrol
429 – 435 PSView engine

SL63 AMG (R231)

M157 · 2011 – 2020

Petrol
537 – 585 PSView engine

SL43 (R232)

M139 · 2023 – Present

Petrol (Mhev)

SL55/63 4MATIC+ (R232)

M177 · 2022 – Present

Petrol
476 – 805 PS systemView engine

10 engines — scroll for more

SL Engine Price Guide

Starting prices from the current engine-family data.

The price on each published listing is the price you pay.

Used or Reconditioned

SL Engines Through the Generations

R230

R230 2001–2011

M272/M113 petrol V6/V8, with M275-powered V12 SL600/SL65 flagships and the M156-powered SL63 AMG. R231 (2011–2020): M276/M278 and the M279 V12 SL65, alongside M157-powered SL63. R232 (2022–Present): introduced the four-cylinder M139 SL43 — SL's first-ever four-cylinder production engine — alongside the continuing M177 V8 for SL55/63 4MATIC+.

SL Engine Buying FAQs

A

9 confirmed engine families across three generations, from V6/V8/V12 architecture through to the current M139 four-cylinder and M177 V8.

A

Use the registration checker on this page — chassis code (R230/R231/R232) is the clearest first filter.

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Reconditioned is the standard choice across most applications given the performance tier and complexity of every SL engine.

A

Reconditioned engines carry a 12-month, unlimited-mileage warranty on internal mechanical components. UK mainland delivery by kerbside pallet, typically 2–4 working days, with 14-day uninstalled returns.

Related Mercedes-Benz Models

S-Class (shares the M275/M279 V12 hub, M176/M177/M256)AMG GT (R232 SL shares significant chassis/platform DNA)All engines