Sephia 1.6L Petrol Engines
from £550 to £950
Rebuilt units from £550 · Common codes: B6
Get quotes from trusted UK Kia Sephia engine specialists. Compare used and reconditioned prices for 1.5L to 1.6L petrol - B5 & B6 covered. Find the best value for your budget.
Sephia 1.6L Petrol Engines
from £550 to £950
Rebuilt units from £550 · Common codes: B6
Sephia 1.5L Petrol Engines
from £500 to £850
Rebuilt units from £500 · Common codes: B5
Sephia 1.8L Performance Engines
from £650 to £1,100
Rebuilt units from £650 · Common codes: T8

Most replacements completed within 3-5 days.
Typical UK rebuilt Kia Sephia engine costs by variant - compare failure causes, codes, fuel types, sizes and price ranges.


Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Kia Sephia engines through EngineMarket.
4.8
★★★★★
out of 5
1,081 verified reviews
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
“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.”






Not sure which variant your Kia Sephia 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 Sephia 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 Sephia variants.

B5 - 1.5L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Avg. rebuilt price
£500 - £850
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 Sephia engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

The Kia Sephia relies on aging B5, B6 and T8 DOHC petrol engines that are generally robust but vulnerable to age-related wear and neglected servicing. Timing belt snaps, head gasket deterioration and fuel system degradation are the primary drivers for replacement across the 1993-2003 model range. Every rebuilt Kia Sephia engine supplied through our network...
Kia Sephia Timing Belt Failure
Most affected vehicles
Kia Sephia 1.5 LS, 1.6 GS, 1.8 RS (1993-2003, B5, B6 & T8)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
The B-series and T8 are interference engines; rubber belt degradation, tensioner collapse, or water pump seizure causes the camshaft to stop while pistons keep moving.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Belt & Tensioner Kit | £350-£550 | £180-£320 | Replace belt, tensioner, pulleys and water pump before failure | Safe for 60,000 miles or 5 years with proper servicing |
| Full Replacement - Rebuilt Engine Supply & Fit | £2,200-£3,000 | £1,100-£1,600 | Install tested rebuilt engine with upgraded timing components, fresh ancillaries, bench tested | Restores factory performance with 12-month warranty; resolves collateral valve damage |
Our recommendation
Given the low residual value of a Sephia, preventative belt changes at 5-year intervals are always cheaper than recovery. If the belt has already snapped and caused valve-piston contact, a full rebuilt engine is the only economically viable fix; attempting a cylinder head rebuild rarely matches the reliability or cost-effectiveness of a complete replacement.
Compare rebuilt B6 Kia Sephia engine prices for timing failure recovery
Compare Kia Sephia engine prices with vetted UK suppliers

Every petrol displacement fitted to the Kia Sephia across both UK generations is listed below, with compatible engine codes, production years and common failure notes to help you identify the correct replacement unit.
The 1.5L B5 petrol engine served as the entry-level powerplant across both generations of the Kia Sephia, offering economical running costs for budget-conscious UK buyers. Its simple DOHC design and widespread fitment to the 1.5 LS trim made it the most accessible replacement option, though age-related wear on timing components and cooling systems now drives most replacement enquiries.
Engine Code(s)
B5
Compatible Models (UK)
1.5 LS Saloon, 1.5 LS Hatchback
Power output
Verified by registration
Common Failure Points
Timing belt failure on interference engine; head gasket deterioration at high mileage
Production Years: 1993-2003
Compare Kia Sephia 1.5L petrol engine prices
Choose your Kia Sephia engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 1.5 LS to the range-topping 1.8 RS.
The Kia Sephia was offered exclusively with DOHC petrol engines across both generations, with the 1.6L B6 code dominating UK replacement enquiries due to its widespread fitment to the popular 1.6 GS variant.
Common Kia Sephia Petrol Engine Families
Found In
Known For
Typical Petrol Models
The Kia Sephia was offered exclusively with DOHC petrol engines across both generations, with the 1.6L B6 code dominating UK replacement enquiries due to its widespread fitment to the popular 1.6 GS variant.
Common Kia Sephia Petrol Engine Families
Found In
Known For
Typical Petrol Models
Not sure which fuel type your Kia Sephia 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 Sephia specialists.