Sedona 3.3L GDI V6 Engines
from £450 to £2,200
Rebuilt units from £450 · Common codes: G6DH, G6DJ, G6DK, G6DL
Get quotes from trusted UK Kia Sedona engine specialists. Compare reconditioned, rebuilt and used prices for 2.9L CRDi - J3(CRDi) & D4HB covered. Compare supply & fit options today.
Sedona 3.3L GDI V6 Engines
from £450 to £2,200
Rebuilt units from £450 · Common codes: G6DH, G6DJ, G6DK, G6DL
Sedona 3.5L V6 MPI Engines
from £400 to £1,800
Rebuilt units from £400 · Common codes: G6EA, G6CU, G6BA, G6BV
Sedona 2.2L CRDi Diesel Engines
from £550 to £2,400
Rebuilt units from £550 · Common codes: D4HB, D4HA, D4FC, D4EB

Most replacements completed within 3-5 days.
Typical UK rebuilt Kia Sedona engine replacement costs by variant - compare failure causes, codes, fuel types and sizes to find affordable options.


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Not sure which variant your Kia Sedona is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.

Every engine code fitted to the Kia Sedona across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across Kia Sedona variants.

G6DH - 3.3L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Avg. rebuilt price
£500 - £2,200
Supply only
Technical specifications
Common failures
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Kia Sedona engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

The Kia Sedona is a dependable large MPV, but its high-mileage petrol V6 units develop specific weaknesses that frequently drive owners toward complete engine replacement. Replacement demand is heavily concentrated on the 3.5-litre G6EA MPI and 3.3-litre G6DH GDI Lambda V6 engines, both of which suffer from interference designs and complex thermal failures....
Kia Sedona Head Gasket Failure
Most affected vehicles
Kia Sedona LX, SE, SR, SX, Platinum (2015-2021, G6DH 3.3L V6)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
The G6DH engine uses a head bolt thread design prone to stripping from the aluminium block under repeated thermal cycling, causing catastrophic compression loss and coolant migration into the crankcase.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Major Repair - Cylinder Head Refit & Thread Repair | £2,800 - £4,200 | £1,500 - £2,400 | Machining the block deck, installing helicoil/thread inserts, and resealing the head with new gaskets | Only viable if block threads are partially intact. High recurrence risk within 15,000 miles on weakened aluminium. |
| Full Replacement - Rebuilt / Reconditioned Engine | £7,500 - £11,000 | £1,800 - £3,200 | Supply and fit of a complete rebuilt G6DH unit featuring reinforced block threads, upgraded gasket set, and bench-tested oil pump | Permanently resolves cylinder compression and coolant sealing. Backed by a 12-month warranty with components engineered to exceed original TSB specifications. |
Our recommendation
On a Kia Sedona with confirmed head bolt stripping, a standard Kia Sedona head gasket replacement will almost always fail due to compromised block integrity. We strongly recommend a full rebuilt Kia Sedona engine replacement with updated thread reinforcement, as it permanently resolves the factory flaw and protects your long-term investment in the vehicle.
Compare rebuilt G6DH Kia Sedona engine prices now
Every replacement option is available through our UK network with typical price ranges based on your specific variant, engine code and budget requirements.
Compare Kia Sedona engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Kia Sedona within hours.

Every engine displacement officially fitted to the UK Kia Sedona is listed below with compatible codes, production years and common failure notes to ensure you source the exact replacement unit.
Appearing exclusively in the second generation (2008-2014), this 2.2-litre CRDi diesel was introduced to provide improved fuel economy and higher torque for fleet operators and high-mileage family haulers. Utilising common-rail direct injection and a variable geometry turbocharger, it served as a niche alternative to the dominant petrol V6 units but remains sought after for long-distance towing efficiency.
Engine Code(s)
D4HB
Compatible Models (UK)
SE CRDi, SR CRDi
Power output
Verified by registration
Common Failure Points
Turbocharger oil seal degradation, EGR cooler blockage, injector seal failures at high mileage.
Production Years: Gen 2 YP, 2008-2014
Get quotes for Kia Sedona 2.2L diesel engines
Choose your Kia Sedona engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 3.5L V6 petrol units to the latest 3.3L GDI Lambda II and rare 2.2L CRDi diesel.
The 2.2L CRDi diesel was a niche option for second-generation Sedona models, sought by high-mileage fleet operators but significantly rarer than petrol V6 replacements in the UK market.
Common Kia Sedona Diesel Engine Families
Found In
Known For
Typical Diesel Models
The 2.2L CRDi diesel was a niche option for second-generation Sedona models, sought by high-mileage fleet operators but significantly rarer than petrol V6 replacements in the UK market.
Common Kia Sedona Diesel Engine Families
Found In
Known For
Typical Diesel Models
Petrol V6 powerplants dominate the UK Sedona range, with the 3.5L MPI and 3.3L GDI Lambda II engines covering all three generations and representing the vast majority of replacement enquiries.
Common Kia Sedona Petrol Engine Families
Found In
Known For
Typical Petrol Models
No hybrid, plug-in hybrid, mild hybrid or pure electric variants of the Kia Sedona were officially sold in the UK market across any generation.
Replacement enquiries focus exclusively on G6DH, G6EA, G6CU and D4HB engine codes
Important Notes
Not sure which fuel type your Kia Sedona has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Kia Sedona specialists.

This technical timeline covers every major engine change across the Kia Sedona's UK production run from 1999 to 2021, organised so owners can quickly identify their exact engine code and compare rebuilt replacement prices from vetted UK specialists.
⚙Key Changes
▣Main Engines
G6CU- 3.8L petrol (LX, EX early trims)
G6BA- 3.5L petrol (mid-cycle refresh variants)
▰Popular Models
🔧Known For
Engine Codes Covered:
G6CUG6BAG6BV