Buy identity first, mileage second. A tested used SHY6 should come with the donor's Reg, mileage records and test evidence — and clear proof it is a SHY6, not its SHY8 sibling. The cited SHY6 record shows 150 hp / 380 Nm in CX-5 KF applications (2018–2021 cited); those figures must be matched to the actual unit, not assumed across the group.
MAZDA REPLACEMENT ENGINES • UK
Used SHY6 Engines (2.2 SkyActiv-D) — Buying a Donor You Can Actually Identify
A used SHY6 engine is only worth buying if you know it's a SHY6. Because this code is grouped with SHY8 in CX-5 KF records, misidentification is the number-one risk — and misidentification is expensive. This page shows CX-5 owners what donor evidence to demand and how to compare used offers without mixing the group up.
Find the right engine for your Mazda
✓ Used & reconditioned✓ Supply or fitting✓ Compare quotes
What should a used SHY6 donor include?
A complete 2.2-litre SkyActiv-D from a documented donor, with the identity confirmed against the code on the unit, plus ancillaries that match your CX-5 KF configuration. Grouped SHY8 evidence should stay separate — ask where the donor records come from.
Which Mazda takes a used SHY6?
Reviewed records place SHY6 in the CX-5 KF (2018–2021 cited), grouped with SHY8. Confirm the unit's marking against your Reg, and check drivetrain and emissions hardware before buying.
The SHY6 guide explains the grouped-code trap; the CX-5 hub covers the vehicle.
| Model | Generation / body | Engine | Output | Evidence status |
|---|---|---|---|---|
| Mazda CX-5 | KF (2018–2021 cited) | 2.2 SkyActiv-D | 150 hp cited (SHY6 record) | Reviewed record — grouped with SHY8 |
| UK derivatives | — | — | — | Still to confirm — check the code against your Reg and Mazda EPC |
What should you check on a used SHY6?
Beyond the family themes of carbon build-up and oil dilution, this application records EGR cooler attention — so ask about it directly.
Core identity risk first: the engine directory shows how grouped codes relate.
Test evidence: compression or running results, with numbers.
EGR and cooling history: what work has been done, and proof.
Servicing and DPF history: how the donor lived.
Components: written list of what's included.
Used, reconditioned or supply-and-fit — what suits a grouped code?
Used is the value route — but only with airtight identity and test evidence. Reconditioned removes the donor lottery; supply-and-fit removes the management burden. On a grouped code, don't accept vague paperwork from any route.
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 SHY6 before buying?
Identity: it is SHY6 — confirmed on the unit, not the advert.
Donor records: Reg, mileage, history.
Tests: compression or running evidence.
Cooling/EGR: documented condition and work.
Terms: warranty, delivery, returns.
Used SHY6 questions
How do I tell SHY6 from SHY8?
By the marking on the actual engine — and by asking for donor records that name the code. Because the two are grouped in the same record period, adverts blur them. Trust the block, not the listing.
What if the seller can't confirm the code?
Walk. On a grouped code, unconfirmed identity means you don't know what you're buying — or what specification it carries.
Should I worry about EGR cooler history?
Yes — this application records EGR cooler attention, so ask what's been done and get it documented. A used unit with known-good cooling is worth more than a mystery one.
Is a used SHY6 cheaper than recon?
Usually — but the gap narrows once you price in the verification work and any follow-up repairs. Compare on total risk, not headline price.
READY FOR THE NEXT STEP?
Check My Registration →Get tested used SHY6 quotes for your CX-5
Start with your registration, and demand code identity on every offer. 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.