UK's Trusted Online Engine Store
Buy your next
engine online.
Used and reconditioned engines at fixed prices – verified fitment, warranty and UK delivery included.
Find your engine by reg
We'll confirm your exact model, year and factory engine code before you buy.
N47D20
2.0 Diesel
£795
In stockAJ126
3.0 V6 Diesel
£3,295
In stockM274
2.0 Petrol
£1,095
In stock306DT
3.0 Diesel
£2,695
In stockFind your engine by reg
We'll confirm your exact model, year and factory engine code before you buy.
Verified Fitment
Checked by registration
12-Month Warranty
On reconditioned units
UK Nationwide Delivery
2-4 working days
14-Day Returns
Uninstalled, full refund
Browse by brand
Know your engine or just want to look around? Start with your manufacturer.
Featured Engines in Stock
Ready-stock units available to buy now – sourced from our currently verified-demand catalogue.
Mercedes OM651 Engine
C-Class W204
£1,795.00
or pay in instalments at checkout
In stock - ready to ship
Buy it now
Mercedes OM642 Engine
Sprinter W906
£1,495.00
or pay in instalments at checkout
In stock - ready to ship
Buy it now
Mercedes M274 Engine
C-Class W205
£1,095.00
or pay in instalments at checkout
In stock - ready to ship
Buy it now
Mercedes OM646 Engine
C-Class W204
£695.00
or pay in instalments at checkout
In stock - ready to ship
Buy it nowHow Buying Works
Shop by Brand
Every brand we cover, from full-range premium marques to flagship-model coverage on volume brands.
Used or Reconditioned - Which Should You Buy?
Used engines
Removed from a donor vehicle, tested, and sold with recorded mileage. The cost-effective route where donor supply is strong - every used unit states its own warranty term before you buy.
Reconditioned engines
Fully stripped, machined and rebuilt with new wear parts, then tested before dispatch. Carries a 12-month, unlimited-mileage warranty - the right choice for maximum service life.
Buyer's Guides
All guidesWhat's included when you buy an engine
What every listing covers as standard, and what's supplied separately - turbo, injectors, ancillaries and fitting.
Core exchange, explained
How returning your old unit works, what a core charge is, and how to avoid one where it applies.
Warranty & Delivery
Warranty & returns
Reconditioned engines carry a 12-month, unlimited-mileage warranty; used engines state their own term on every listing. Return any engine uninstalled within 14 days for a full refund including original delivery.
Delivery
UK mainland delivery by kerbside pallet, typically 2-4 working days for in-stock units, with tracking emailed on dispatch. The delivery price shown at checkout is the price you pay.
Popular Engine Families
Our highest-demand engine hubs right now, each covering every compatible vehicle application.
Is GMC the Right Stop for You?
This is GMC
You know what engine you need and want to buy it
GMC is a direct-purchase engine store - fixed prices, verified fitment, buy today. If you're at this stage, you're in the right place.
Not quite yet?
Still working out what's wrong, or want a fitted-price quote first
If you haven't confirmed the fault yet, or you'd rather compare fitted quotes from local specialists before buying a part outright, that's a different kind of service to the one GMC provides.
Frequently Asked Questions
Enter your registration number or browse by brand and model to find the exact engine your vehicle needs. Every engine is shown at a fixed, listed price with its condition, warranty and delivery estimate stated upfront - add it to your basket and buy it directly, the same way you'd buy anything else online.
GMC is a direct-purchase engine store. You buy a specific engine at the price shown on the page - there are no quotes to request and no suppliers to compare. If you're still working out what's wrong with your vehicle, or you'd rather get a fitted-price quote from a specialist instead of buying the engine outright, GMC may not be the right stop for that stage of the job.
Every listing states its condition clearly - used engines are removed from a donor vehicle, tested, and sold with recorded mileage; reconditioned engines are fully stripped, machined and rebuilt with new wear parts and a 12-month, unlimited-mileage warranty. Where both are available for your vehicle, you can choose between them on the listing page.
Every listing is verified against your registration before you order, and full compatibility details are shown on the page. If an engine you've ordered turns out not to be compatible, you can return it uninstalled within 14 days for a full refund including original delivery.