2.2-litre Mazdas are SkyActiv-D diesel — the SH family (2,191 cc, inline-four, common-rail, turbocharged). Codes include SHY1 (150 PS), SHY4 (175 PS), SHY6 (grouped with SHY8), SH-VPTS and SH-VPTR (Mazda 6 GJ/GL, 175 PS). Identify your code first — never buy on the family name.
MAZDA REPLACEMENT ENGINES • UK
Mazda 2.2L Engines — SkyActiv-D Diesel Family Identification and Replacement Guide
A 2.2-litre Mazda engine is the SkyActiv-D diesel family — the SH-series codes behind the CX-5 and Mazda 6, and the diesel most UK owners end up researching for replacement. This page maps the codes, what's verified about each, and how to buy a replacement without mixing the family up.
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✓ Used & reconditioned✓ Supply or fitting✓ Compare quotes
Which 2.2 SkyActiv-D codes are there?
The family spans several codes with different records: SHY1 and SHY4 (CX-5 applications, 150/175 PS), SHY6 (CX-5 KF, grouped with SHY8), SH-VPTS (restricted records) and SH-VPTR (Mazda 6 GJ/GL, 175 PS). Output and application belong to specific codes — not the family.
SHY1
- Cited output
- 150 PS
- Documented applications
- CX-5; grouped Mazda 6 refs
- Status
- Reviewed record
SHY4
- Cited output
- 175 PS
- Documented applications
- CX-5; grouped Mazda 6 refs
- Status
- Reviewed record
SHY6
- Cited output
- 150 hp cited (380 Nm)
- Documented applications
- CX-5 KF; grouped with SHY8
- Status
- Reviewed record — keep codes separate
SH-VPTS
- Cited output
- 175–190 hp cited
- Documented applications
- CX-5 cited; rest restricted
- Status
- Restricted records
SH-VPTR
- Cited output
- 175 PS
- Documented applications
- Mazda 6 GJ/GL Saloon 4WD, Estate
- Status
- Reviewed record
Which models use the 2.2 diesel?
Records point to the CX-5 (SHY1/SHY4/SHY6 families) and the Mazda 6 (SH-VPTR; grouped references for SHY codes). UK derivatives still need confirming per vehicle.
Code guides: SHY1, SHY4, SHY6, SH-VPTS, SH-VPTR.
| Model | Codes recorded | Evidence status |
|---|---|---|
| CX-5 | SHY1, SHY4, SHY6 | Reviewed records — confirm your derivative |
| Mazda 6 | SH-VPTR; grouped SHY refs | Reviewed records — confirm per vehicle |
What goes wrong on a 2.2 SkyActiv-D?
The family's recurring themes: intake-valve carbon build-up and oil dilution — with EGR cooler attention recorded in the SHY6 application.
Family context: SkyActiv-D guide and the engine directory.
Carbon build-up: rough running and warning lights — inspect on evidence.
Oil dilution: rising level, diesel smell, short-trip and DPF patterns.
Diagnose before replacing: compression, leak-down, oil pressure, cooling, full scan.
Used, reconditioned or supply-and-fit — which way for a 2.2?
For the UK's most-researched diesel, tested used is the value route with strong evidence; reconditioned for keepers; supply-and-fit for a managed job.
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
Popular Mazda 2.2 Engines
Popular Mazda 2.2 engine options requested by UK drivers, with model and engine-code context.
1
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
How do you verify a 2.2 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.
2.2-litre Mazda questions
Which 2.2 codes are there?
SHY1, SHY4, SHY6, SH-VPTS and SH-VPTR — each with its own record and output. Identify the code on your engine before anything else.
Is the output the same across the family?
No — 150 PS and 175 PS applications are both recorded, and SHY6's cited figures belong to its specific record. Match the code, not the capacity.
Which is the Mazda 6 code?
SH-VPTR is recorded for Mazda 6 GJ/GL applications at 175 PS.
What should a used 2.2 come with?
Donor Reg, mileage records, compression or running evidence, and the parts list. Ask about oil-level and DPF history, and about EGR work on SHY6-family units.
READY FOR THE NEXT STEP?
Check My Registration →Get 2.2L Mazda replacement quotes
Submit your registration and compare 2.2 diesel quotations with evidence attached. 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.