Mazda's SkyActiv-D diesels span four capacities: 2.2-litre (the SH family — SHY1/SHY4/SHY6/SH-VPTS/SH-VPTR), 1.5-litre (S5-DPTR, CX-3), 3.2-litre (P5-AT, BT-50) and 3.3-litre (T3Y4, CX-60). Each code carries its own records — never buy on the family name alone.
MAZDA REPLACEMENT ENGINES • UK
Mazda SkyActiv-D Engines — Diesel Family Guide (2.2, 1.5, 3.2, 3.3)
The SkyActiv-D is Mazda's diesel family — and in the UK it's the family most owners end up researching for replacement. This guide maps the diesel codes by capacity, what's verified about each, the faults that matter, and how to buy a replacement without treating the family as one engine.
Find the right engine for your Mazda
✓ Used & reconditioned✓ Supply or fitting✓ Compare quotes
Which SkyActiv-D engines are there?
By capacity: 1.5 (S5-DPTR — CX-3 DK, 105 PS), 2.2 (SH family — CX-5 and Mazda 6 applications), 3.2 (P5-AT — BT-50, 197 hp) and 3.3 (T3Y4 — CX-60 254 AWD, 254 PS/550 Nm, mild hybrid).
1.5L
- Codes
- S5-DPTR
- Key models
- CX-3 (DK)
- Notes
- 105 PS — 2015–18 cited
2.2L
- Codes
- SHY1, SHY4, SHY6, SH-VPTS, SH-VPTR
- Key models
- CX-5, Mazda 6
- Notes
- 150/175 PS contexts — per-code records
3.2L
- Codes
- P5-AT
- Key models
- BT-50
- Notes
- 197 hp — commercial
3.3L
- Codes
- T3Y4
- Key models
- CX-60
- Notes
- 254 PS/550 Nm — mild hybrid, 2022 cited
Which models run SkyActiv-D?
The CX-3 (1.5), CX-5 and Mazda 6 (2.2), BT-50 (3.2) and CX-60 (3.3). Fitment is confirmed per code and vehicle.
Family pages: 2.2L guide, 1.5L guide, 3.2L guide, 3.3L guide.
| Model | Diesel engine | Evidence status |
|---|---|---|
| CX-3 | S5-DPTR 1.5 | Reviewed record |
| CX-5 / Mazda 6 | SH family 2.2 | Reviewed records — per code |
| BT-50 | P5-AT 3.2 | Reviewed record |
| CX-60 | T3Y4 3.3 | Reviewed application — 254 AWD 2022 |
What goes wrong on SkyActiv-D engines?
Family themes: intake-valve carbon build-up and oil dilution — with code-specific notes (e.g., EGR cooler attention on SHY6) and the usual modern-diesel themes on newer units (DPF/regeneration, AdBlue/NOx on the 3.3).
Family context: engine directory.
Diagnose first: compression, leak-down, oil pressure, cooling, full scan.
Check duty and servicing history — short trips hurt every modern diesel.
Never replace an engine on a family-level rumour.
Used, reconditioned or supply-and-fit — which way for a diesel?
All three routes apply across the family — tested used with strong evidence, reconditioned for keepers, supply-and-fit for a managed job. Records decide.
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 verify a SkyActiv-D before you buy?
Run these five checks before any money moves — code first, price last.
Code: photograph the marking on the actual engine and match it to your Reg.
Configuration: confirm model, year, drivetrain and emissions equipment.
Evidence: rebuild records for reconditioned; donor Reg, mileage and tests for used.
Components: get the included-parts list in writing.
Terms: compare warranty, delivery and returns like-for-like.
SkyActiv-D family questions
Is the 2.2 the only SkyActiv-D?
No — the family spans 1.5, 2.2, 3.2 and 3.3-litre units. Each has its own codes and records.
Why do 2.2 diesels get so much attention?
Volume and UK demand — the SH family powered the CX-5 and Mazda 6, the models most often researched for replacement.
Do all SkyActiv-D engines share the same faults?
Family themes recur, but specifics differ by code and application. Diagnose the individual engine.
What should any replacement come with?
Rebuild records for reconditioned; donor Reg, mileage and tests for used; written components and warranty terms either way.
READY FOR THE NEXT STEP?
Check My Registration →Get SkyActiv-D replacement quotes
Submit your registration for quotations matched to your diesel code and vehicle. 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.