Buy a tested used SHY1, not a mystery unit. You want a documented donor: Reg, mileage records, and running or compression-test evidence, plus a clear list of what's included. On a 2.2 diesel, ask about oil-level history and any DPF work — the answers reveal how the donor was treated. Verify the code against your Reg before anything else.
MAZDA REPLACEMENT ENGINES • UK
Used SHY1 Engines (2.2 SkyActiv-D 150) — How to Buy a Tested Donor, Not a Gamble
A used SHY1 engine is only as good as its paperwork. These are 2.2-litre SkyActiv-D units recorded for the CX-5 (and grouped Mazda 6 references) at 150 PS — and the market is full of them, good and bad. This page shows what a properly tested used unit looks like, which donor evidence separates the two, and how to compare offers without getting caught.
Find the right engine for your Mazda
✓ Used & reconditioned✓ Supply or fitting✓ Compare quotes
What should a used SHY1 donor look like?
A used SHY1 should be presented as a complete 2.2-litre SkyActiv-D from a known donor, with the accessories that match your vehicle's configuration. Reviewed records put the code in 150 PS CX-5 applications (KE/GH, 2012–2017 cited) with grouped Mazda 6 references — so the unit must be matched to your car, not just the family.
Which Mazda models can take a used SHY1?
Records link SHY1 to the CX-5 with grouped Mazda 6 references. Because the same family served several derivatives, the donor's exact configuration — drivetrain, emissions hardware, ancillaries — has to line up with yours. Confirm with the code on the block and your Reg.
The CX-5 model hub, Mazda 6 model hub and the SHY1 guide cover the vehicle and code side.
| Model | Generation / body | Engine | Output | Evidence status |
|---|---|---|---|---|
| Mazda CX-5 | KE/GH (2012–17 cited) | 2.2 SkyActiv-D | Per the SHY1 record | Reviewed European OEM-linked record |
| Mazda Mazda 6 | Grouped references | 2.2 SkyActiv-D | Shared context | Grouped record — not a universal fitment claim |
| UK derivatives | — | — | — | Still to confirm — check the code against your Reg and Mazda EPC |
What should you check on a used 2.2 diesel?
The family's familiar themes are carbon build-up and oil dilution — so a used unit demands evidence, not vibes.
Keep the family in view via the engine directory.
Compression and running tests: ask for numbers, not adjectives.
Oil and DPF history: dilution and regeneration habits follow engines around; ask what the donor's servicing looked like.
Ancillaries: confirm what's included and what transfers from your old engine.
Cold-start behaviour: on these diesels, a rattle or smoke tells a story a seller won't.
Used, reconditioned or supply-and-fit — what suits a 150 PS diesel?
A tested used unit is the value route — fastest back on the road when the evidence is solid. Reconditioned makes sense if you're keeping the car long-term. Supply-and-fit bundles engine and labour when you want one quote and one point of responsibility.
01
Used Engine
- What it is
- A complete donor unit, tested before sale
- Best for
- Faster, cheaper routes with honest donor history
- What to compare
- Mileage records, donor Reg, compression and running-test evidence
- What it is
- A complete unit stripped, measured, machined and rebuilt
- Best for
- Owners keeping the car long-term
- What to compare
- Machining and measurement records, replaced-parts list, test results
03
Supply & Fit
- What it is
- Engine, removal, installation and commissioning in one quotation
- Best for
- One-responsibility jobs where downtime matters
- What to compare
- Written component schedule, fitting plan, warranty split and handover
UK's Most Requested Engines — Based on 5,760+ Real Quotes (Last 90 Days)
These are the engines UK drivers ask us about most, ranked by real enquiry traffic through our network — useful context when you're weighing how much homework your engine deserves.
1
Most requested
Mazda 6 2.2 SkyActiv-D Engine SH-VPTR / SHY family
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: Mazda 6
Engine option: SH-VPTR / SHY family
Top UK demand — the diesel most often researched for replacement
Seller from trusted UK supplier network
2
Mazda CX-5 2.2 SkyActiv-D Engine SHY1 / SHY4 / SHY6
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: CX-5
Engine option: SHY1 / SHY4 / SHY6
High demand; output and code vary by year
Seller from trusted UK supplier network
3
Mazda 3 2.0 SkyActiv-G Engine PE-VPS
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: Mazda 3
Engine option: PE-VPS
Volume petrol with several applications
Seller from trusted UK supplier network
4
Mazda CX-3 1.5 SkyActiv-D Engine S5-DPTR
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: CX-3
Engine option: S5-DPTR
Steady CX-3 DK diesel demand
Seller from trusted UK supplier network
5
Mazda 2 1.5 SkyActiv-G Engine P5-VPS
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: Mazda 2
Engine option: P5-VPS
Small-car petrol volume
Seller from trusted UK supplier network
6
Mazda MX-5 1.5 / 2.0 SkyActiv-G Engine
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: MX-5
Enthusiast-driven demand
Seller from trusted UK supplier network
7
Mazda CX-60 3.3 e-Skyactiv D Engine T3Y4
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: CX-60
Engine option: T3Y4
Newest diesel; near-new donor market
Seller from trusted UK supplier network
8
Mazda CX-30 2.0 SkyActiv-G Engine PE-VPS / PEX family
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: CX-30
Engine option: PE-VPS / PEX family
Growing volume
Seller from trusted UK supplier network
9
Mazda BT-50 3.2 Duratorq diesel Engine P5-AT
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: BT-50
Engine option: P5-AT
Commercial workhorse demand
Seller from trusted UK supplier network
10
Mazda 2.5 SkyActiv-G Petrol Engine
Used & reconditioned · Business seller
Get multiple engine quotes across the UK
Typical fitment: CX-5, Mazda 6, CX-30, Mazda 3
Higher-capacity petrol
Seller from trusted UK supplier network
How do you vet a used SHY1 before buying?
In order:
Code and configuration: match the marking on the unit to your Reg.
Donor records: Reg, mileage and history.
Test evidence: compression or running results.
Components in writing: what's included, what's not.
Terms: warranty, delivery and returns, compared like-for-like.
Used SHY1 questions
How many miles is too many on a used SHY1?
Mileage alone doesn't decide it — documentation does. A higher-mileage unit with full records and good test results beats a low-mileage one with no history every time.
What tests should a used unit come with?
At minimum, compression or running-test evidence and a donor record. On these diesels, ask specifically about oil-level behaviour and any DPF or EGR work.
Can I fit a used SHY1 from a different Mazda?
Only if the configuration matches — records tie SHY1 to CX-5 applications with grouped Mazda 6 references. Compare part numbers, ancillaries and emissions hardware against your vehicle.
Should I buy a used unit with no paperwork?
No. On a 2.2 SkyActiv-D, no paperwork means no evidence about dilution, DPF or servicing history — you're buying an unknown. Hold out for a documented donor.
READY FOR THE NEXT STEP?
Check My Registration →Get tested used SHY1 quotes for your Mazda
Send your registration and compare used SHY1 offers with their evidence attached — then buy on records. For official specifications and service documentation, cross-check against official documentation — source: Mazda UK's official resources.
Reviewed Mazda engine guidance
Reviewed by the MazdaReplacementEngines technical team against Mazda owner documentation and OEM-linked application records.