Replacement B4D engine for the Nissan Micra 1L. Compare reconditioned, tested used and supply & fit options, with exact compatibility checked before your quote is progressed.
Engine code: B4D. Displacement: 1.0 litres, direct-injection petrol three-cylinder, naturally aspirated. Family: B4D. Power: 70 hp (71 PS). Torque: 96 Nm (71 lb-ft). Fitted to: Micra. Production years: approximately 2017 onwards. Outputs vary by model year and calibration; the block stamp, checked against your registration, remains the match that matters.
| Property | Detail |
|---|---|
| Engine Code | B4D |
| Displacement | 1.0L |
| Fuel Type | Petrol |
| Engine Family | B4D |
| Power | 71 hp |
| Fitted To | Micra |
| Known Faults | ignition and coil-pack wear |
| Warranty | 6 to 12 months depending on option |
| Availability | Reconditioned and tested used engines |
Pick the buying route that suits your budget, timeline and the condition you want for your Nissan B4D engine.
A strong option for buyers who want a balanced mix of reliability, renewed internals and long-term value.
A lower-cost buying route for customers who want a fast replacement and a more price-led solution.
Perfect if you want the engine supplied and the installation arranged through the workshop network in one quote path.
Use this table as a buying guide to see which Nissan models are commonly associated with the B4D engine. Exact fitment is still confirmed before the order is finalised.
| Compatible Nissan Model | Years | Engine Size | Fuel Type | Model Page |
|---|---|---|---|---|
| Micra | 2017–2020 | 1000 cc | Petrol | View model |
Important: the compatibility table is a practical shopping aid. Always confirm the exact engine code, vehicle year and fitment before ordering.
A still-in-production engine replaces differently: the parts channel runs warm, technical knowledge is recent, and donors arrive with proper digital histories rather than fading folders. The B4D’s owner also has a car holding its value better than older Micras, which quietly strengthens the replacement case when the tests come back strong. The assessment reads all of that – duty, history, value – before naming routes, because a current engine deserves current thinking.
The B4D injects straight into the cylinder, so its intake valves never see fuel – and the vapour residue bakes into carbon that, over the years, narrows the engine’s breath. The symptoms arrive politely: softened throttle, nudged-up consumption, an occasional rough warm-up. The scope reads the build-up directly, and the findings place it on the line between a cleaning job and a replacement conversation – a line the tests draw in millimetres, not adjectives.
Nissan engines matched by VRM to your exact code and variant
Reconditioned and tested used options with 6 to 12 months warranty
Compression, leak, history and mileage checks before any offer
Nationwide recovery and fitting available across the UK
Independent intermediary — vetted UK specialist workshops only
No fixed prices — bespoke written quotes per vehicle, no obligation
Every engine match is confirmed against your registration before any quote is issued, and all work is carried out by vetted third-party workshops operating as an independent comparison service.
When the B4D stumbles, the coil pack is the usual suspect, and the electrical test exonerates or convicts it in minutes. The distinction matters because a coil misfire and a compression problem feel similar from the driver’s seat while costing entirely different money. Replacement conversations on this engine start only where the compression and leak-down numbers say so – which is why the tests always run before the quotes are written.
Higher-mileage B4Ds begin to use oil as rings and bores wear – a slow, normalisable habit until someone measures it. Compression and leak-down turn the habit into data, and the data decides: early wear stays on the monitoring path, advanced wear moves to the routes. On a current-generation car the choice usually favours action – the vehicle’s remaining value argues for an engine with its paperwork attached rather than for nursing.
The current Micra’s bay is compact and the three-cylinder is light, so the swap runs quickly: plate lookup confirms the code, the stamp is verified at the bay, ancillaries transfer after inspection, and the road test signs off a cold start, a clean throttle and a scan. Recovery is arranged where needed, dates are fixed at quote, and the warranty file – with the engine’s test or build sheet – leaves with the car.
Choose how you want your B4D supplied: reconditioned to spec, a tested low-mileage used engine, or a complete supply & fit package with recovery.
⚙Stripped, measured, reconditioned to specification, pressure tested
◉Low-mileage original with compression and leak checks
⌁Matched engine, recovery, fitting and final check
No fixed prices are published — every quote is bespoke to your registration and chosen service.
| Option | What You Get | Warranty | Best For |
|---|---|---|---|
| Reconditioned | Stripped, measured, reconditioned to specification, pressure tested | 6 to 12 months | Long-term owners |
| Tested Used | Low-mileage original with compression and leak checks | 6 months | Budget buyers |
| Supply & Fit | Matched engine, recovery, fitting and final check | Up to 12 months on installation | Complete solutions |
Because the B4D is still in production, its replacement ecosystem behaves differently: reconditioners build to current specifications, donors arrive with digital histories, and the waiting that plagued older engines simply does not happen. Quotes carry real availability rather than estimates, fitting dates hold, and the warranty file slots into a service story that is still being written. Current is not just a badge here – it is the practical advantage this page keeps returning to.
Fitting a B4D engine means checking the ignition coils and loom before installation, so the replacement does not misfire the same way. The network workshops handle the changeover, and every installation is warranty-backed.
A current-generation Micra has a digital service story – dealer portals, app records, MOT history that follows the plate. A replacement engine without paperwork breaks that story; with the file, it extends it. This is why the warranty documentation on a B4D job is written to slot into the car’s existing records: dated, coded, referenced. The engine is half the job; the other half is keeping the car’s story straight for every future reader.
Enter your registration to verify the B4D code and compare reconditioned, tested used and supply-and-fit quotes from vetted UK Micra specialists.
nissanfittedengines.co.uk operates as an independent comparison intermediary matching vehicle owners with vetted UK specialist workshops. No pricing is shown online; the matched workshop confirms the exact cost for your registration and requirements, with no obligation.
One lookup, three routes, one warranty-backed decision – start with your registration.
