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 Nissan Altra engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available nationwide.
Rebuilt units from £800
Common codes: SR20DE, SR20DET, KA24DE, EM18
Rebuilt units from £900
Common codes: KA24DE, SR20DE, SR20DET
Rebuilt units from £1,500
Common codes: EM18

Most replacements completed within 3-5 days.
The table below shows typical UK rebuilt engine costs across Nissan Altra variants - compare failure causes, engine codes, fuel types, and price ranges to benchmark what UK drivers are paying.


Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Nissan Altra 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
Had a good / bad experience? Please leave a review
Leave a review → - Your feedback helps other Nissan Altra owners find trusted engine specialists.






Not sure which variant your Nissan Altra 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 Nissan Altra 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 Nissan Altra variants.
Extracted from detailed petrol and performance engine families across Nissan Altra 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 Nissan Altra engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
The Nissan Altra (R'nessa) petrol engines - SR20DE, SR20DET and KA24DE - dominate UK replacement enquiries. Every rebuilt engine supplied through EngineMarket includes...
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why Early SR20 Engines Fail
Production Years: 1997 - 2001
Engine: SR20DE
Typical failure window
Original timing chain tensioner loses hydraulic pressure, allowing chain slap and guide wear that can lead to catastrophic interference if ignored.
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - Preventative Chain Kit Minor | £900 - £1,400 | £550 - £850 | Replace tensioner, guides and chain before failure | Viable if caught early; 40-60k mile extension |
Full Replacement - Rebuilt SR20DE Best Value | £2,200 - £3,500 | £800 - £1,800 | Supply & fit rebuilt engine with upgraded tensioner, bench tested | Lifetime solution; 12-month warranty included |
If your SR20DE is rattling on cold start but still runs, a preventative chain kit from a specialist offers excellent value. If the chain has jumped or valves are bent, replacement is the only viable option.
Whether you're dealing with SR20DE timing chain noise, KA24DE head gasket failure, or SR20DET turbo issues, EngineMarket makes it simple to compare prices from trusted UK Nissan Altra specialists. Every rebuilt engine includes upgraded components addressing the original failure point, plus a minimum 12-month unlimited mileage warranty and nationwide delivery. Compare quotes today and get back on the road without the main dealer premium.
Compare Nissan Altra Engine Replacement Prices Now →Every engine type for the Nissan Altra is available through our UK network with typical price ranges based on variant, engine code and budget.
Complete engine replacement service including supply, fitting, fluids and road test from vetted UK Nissan Altra specialists nationwide.
Every displacement fitted to the Nissan Altra is listed below, with compatible engine codes, production years and common failure points to help you identify the correct replacement.
The 2.0L SR20 family powered most R'nessa variants from 1997-2001, offering a balance of efficiency and performance. The naturally-aspirated SR20DE was the volume seller, while the turbocharged SR20DET defined the GT performance trim.
| ENGINE CODE(S) | SR20DE, SR20DET |
| COMPATIBLE MODELS (UK) | R'nessa 2.0 G, 2.0 G Auto, 2.0 GT, 2.0 GT Turbo |
| PRODUCTION YEARS | N30, 1997-2001 |
Timing chain tensioner wear (SR20DE), turbo oil seal failure (SR20DET)
Not sure which engine size your Nissan Altra 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 Nissan Altra specialists.
Fuel Type
Choose your Nissan Altra engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early SR20DE to the rare EM18 electric motor.
Petrol engines dominate the Nissan Altra (R'nessa) replacement market, with SR20DE, SR20DET and KA24DE units covering all UK import variants from 1997-2001.
Not sure which fuel type your Nissan Altra 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 Nissan Altra specialists.
This section covers all major engine changes across the Nissan Altra (R'nessa) production timeline, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
Yes, the Nissan Altra is the electric variant of the R'nessa (chassis N30). Most UK replacement enquiries target the petrol R'nessa variants using SR20DE, SR20DET or KA24DE engines.
Generally yes, the SR20DE from UK-market Primera shares the same block architecture, but wiring loom, mounts and ancillaries may require adaptation for R'nessa fitment.
Rebuilt SR20DE engines typically cost £800-£1,800 supply-only; fitted prices add £400-£900 labour. SR20DET and KA24DE units command higher pricing due to complexity.
No, the Altra EV exclusively used the EM18 electric motor. Petrol engines (SR20/KA24) were fitted only to R'nessa variants, not the Altra EV badge.
KA24DE engines are sourced through specialist Japanese import breakers and UK Nissan specialists. Availability is moderate but lead times of 2-4 weeks are common.
The R'nessa GT Turbo uses the SR20DET engine code. Non-turbo GT variants (if specified) would use SR20DE, but UK imports are predominantly turbo.
Yes, but it requires significant modification: turbo plumbing, intercooler, ECU, wiring loom and exhaust upgrades. Most owners find buying a GT donor more cost-effective.
Yes, our network includes specialists who stock R'nessa-specific 4WD sumps for KA24DE and SR20DE engines. Always confirm drivetrain configuration when ordering.
SR20DE and KA24DE are fundamentally robust engines if maintained; common failures (timing chain, head gasket) are well-documented and addressable with rebuilt units.
Engines supplied through EngineMarket carry a minimum 12-month unlimited mileage warranty. Always confirm exact terms, coverage exclusions and approved fitting requirements with your chosen supplier.
Why Choose Us
Join thousands of UK drivers who compare Nissan Altra engine prices through our network of trusted specialists - every rebuilt and reconditioned unit backed by a minimum 12-month unlimited mileage warranty and nationwide delivery.
Trusted Nissan Altra Engine Suppliers
Every garage and engine rebuilder in our network is vetted, rated, and reviewed by real Nissan Altra owners.
Compare Nissan Altra Engine Replacement Companies
See prices, warranty terms, and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for Nissan Altra
Covering every variant from budget SR20DE to rare EM18 electric, with supply-only or full supply & fit available nationwide.

Trusted supplier network
Warranty-backed rebuilt & used options
Every quote checked for fitment, quality and lead time.