Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Get quotes today from trusted UK Kia Sedona engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available.
-> Rebuilt units from £450 · Common codes: G6DH, G6DJ, G6DK, G6DL
-> Rebuilt units from £400 · Common codes: G6EA, G6CU, G6BA, G6BV
-> Rebuilt units from £550 · Common codes: D4HB, D4HA, D4FC, D4EB
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Get Instant Quotes from KIA Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
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.

Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Kia Sedona engines through EngineMarket.
Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Pete
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
Sophie
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
- Jimmy, London
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From the economical LX to the high-performance Platinum, our network of UK Kia Sedona engine specialists helps you compare rebuilt, reconditioned and used engine prices. Typical price range for a rebuilt unit with 12-month warranty - supply & fit available nationwide.
A full alphabetical listing of every Kia Sedona trim covered by our network. All entries link to a dedicated variant page, where prices are further broken down by engine code, model year, and condition type. Click a live link to compare quotes.
Diesel Variants
Petrol Variants
Performance Variants
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.
Extracted from detailed diesel engine families across Kia Sedona variants.
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. Every rebuilt engine supplied through EnginesMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12‑month unlimited mileage warranty. Use the tiered cost breakdowns below as a decision tool to determine whether a targeted repair or a full rebuilt Kia Sedona engine replacement delivers the best long-term value for your vehicle.
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why 3.3 GDI Engines Strip Head Bolts
Kia Sedona LX, SE, SR, SX, Platinum (2015-2021, G6DH 3.3L V6)
60,000 - 100,000 miles
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 Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Major Repair - Cylinder Head Refit & Thread Repair Minor | £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 Best Value | £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. |
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.
The large V6 engines in the Kia Sedona deliver reliable family hauling capability, but when critical failures like head bolt stripping, timing chain jumps, or progressive bearing wear occur, the repair bills can quickly approach or exceed the vehicle's market value. EnginesMarket removes the uncertainty by connecting you directly with vetted UK specialists who supply rebuilt units specifically calibrated to outlast the original factory weaknesses. Every replacement comes with upgraded internal components, rigorous bench testing, and a minimum 12‑month unlimited mileage warranty, with flexible supply-and-fit options and nationwide courier delivery available across the UK. Compare prices today and secure a dependable, dealer-quality solution without paying the main dealer premium.
Compare Kia Sedona Engine Replacement Prices Now →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. Every rebuilt engine supplied through EnginesMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12‑month unlimited mileage warranty. Use the tiered cost breakdowns below as a decision tool to determine whether a targeted repair or a full rebuilt Kia Sedona engine replacement delivers the best long-term value for your vehicle.
Kia Sedona LX, SE, SR, SX, Platinum (2015-2021, G6DH 3.3L V6)
60,000 - 100,000 miles
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.
Machining the block deck, installing helicoil/thread inserts, and resealing the head with new gaskets
Supply and fit of a complete rebuilt G6DH unit featuring reinforced block threads, upgraded gasket set, and bench-tested oil pump
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.
The large V6 engines in the Kia Sedona deliver reliable family hauling capability, but when critical failures like head bolt stripping, timing chain jumps, or progressive bearing wear occur, the repair bills can quickly approach or exceed the vehicle's market value. EnginesMarket removes the uncertainty by connecting you directly with vetted UK specialists who supply rebuilt units specifically calibrated to outlast the original factory weaknesses. Every replacement comes with upgraded internal components, rigorous bench testing, and a minimum 12‑month unlimited mileage warranty, with flexible supply-and-fit options and nationwide courier delivery available across the UK. Compare prices today and secure a dependable, dealer-quality solution without paying the main dealer premium.
Compare Kia Sedona Engine Replacement Prices Now →Disclaimer: All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EngineMarket’s UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Kia Sedona and engine code. Every engine supplied through EngineMarket carries a minimum 12‑month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Every replacement option is available through our UK network with typical price ranges based on your specific variant, engine code and budget requirements.
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 |
| Production Years | Gen 2 YP, 2008-2014 |
Turbocharger oil seal degradation, EGR cooler blockage, injector seal failures at high mileage.
Not sure which engine size your Kia Sedona needs? Enter your registration number above - we’ll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Kia Sedona specialists.
Fuel Type
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.
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.
Not sure which year your Kia Sedona was built? Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12‑month warranty from UK Kia Sedona specialists.
FAQ
Question 1
A rebuilt Kia Sedona engine typically costs £450-£2,200 supply-only, depending on whether you need the 3.3L G6DH or 3.5L G6EA unit. Used engines start around £400, while supply-and-fit services add £650-£1,200 labour. Prices vary by variant, mileage and supplier location across the UK network.
Key points
Question 2
Replacing a Kia Sedona engine is worthwhile if the vehicle has strong service history and under 120,000 miles. With rebuilt units from £450 and the Sedona's practical 7-8 seat capacity, replacement often costs less than buying a comparable used MPV.
Key points
Question 3
The most reported Kia Sedona engine failures are head gasket failure on 3.3L G6DH units due to head bolt stripping, timing chain jump on 3.5L G6EA engines triggering P0018 codes, and metal flakes indicating rod bearing wear on high-mileage Lambda II V6 engines.
Key points
Question 4
The 3.5L G6EA MPI V6 (2006-2014) is generally more reliable than the 3.3L G6DH GDI (2015-2021), as the newer direct-injection unit suffers from documented head bolt stripping issues confirmed by Kia TSB and owner reports.
Key points
Question 5
Yes, Kia issued a Technical Service Bulletin for 3.3L G6DH engines regarding head bolt stripping that can cause head gasket failure. Coverage varies by VIN, mileage and service history - contact Kia UK with your registration to check entitlement before paying for replacement.
Key points
Question 6
With regular servicing, oil changes every 10,000 miles and timely timing component replacement, Kia Sedona V6 engines can reach 150,000-180,000 miles. However, known issues like G6DH head bolt stripping may cause premature failure regardless of maintenance on third-generation models.
Key points
Question 7
Your Kia Sedona engine code appears on the VIN plate under the bonnet, on the engine block near the sump, or within your V5C registration document. Common codes are G6DH for 3.3L GDI (2015-2021) and G6EA for 3.5L MPI (2006-2014).
Key points
Question 8
Choose a rebuilt Kia Sedona engine for maximum reliability and warranty coverage, especially for G6DH units with known head bolt issues. Used engines suit tight budgets on older Sedonas, while reconditioned units offer a middle ground with upgraded seals addressing common failure points.
Key points
Question 9
Petrol V6 engines dominate the UK Kia Sedona range and are generally more reliable than the rare 2.2L CRDi diesel, which suffers from turbo oil seal leaks and EGR cooler blockage. However, petrol units have their own known issues requiring specialist attention during replacement.
Key points
Question 10
Metal flakes on your Kia Sedona's magnetic drain plug or a P0018 cam correlation code indicate serious internal damage requiring immediate attention. Stop driving, arrange diagnostic inspection, and compare rebuilt engine quotes - continuing to run risks catastrophic seizure or bent valves on these interference V6 engines.
Key points
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