Kia eNiro Electric Drive Unit Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Kia e-Niro EV drive specialists. Compare prices on reconditioned, rebuilt and used EM57 and PE95 electric drive units - supply & fit available with a minimum 12-month warranty.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers

From £1,800 to £3,400
Used from £800 · Reconditioned from £1,800 · Common codes: EM57, PE95, GDU Assembly
From £800
Tested, bare/short engine
From £1,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

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Kia e-Niro - Electric Drive Unit History & Specs at a Glance
The Kia e-Niro (also known as the Niro EV) launched in 2019 as Kia's first dedicated electric crossover in the UK, combining the popular Niro body style with a zero-emission powertrain. Unlike the hybrid Niro models which use the G4LE combustion engine, the e-Niro is powered exclusively by a permanent-magnet synchronous electric motor paired with a single-speed reduction gearbox - making it a pure EV with no internal combustion engine.

Kia e-Niro - Electric Drive Unit History & Specs at a Glance
The Kia e-Niro (also known as the Niro EV) launched in 2019 as Kia's first dedicated electric crossover in the UK, combining the popular Niro body style with a zero-emission powertrain. Unlike the hybrid Niro models which use the G4LE combustion engine, the e-Niro is powered exclusively by a permanent-magnet synchronous electric motor paired with a single-speed reduction gearbox - making it a pure EV with no internal combustion engine.
Kia e-Niro
Engine History Timeline
**2019** - e-Niro launched with 64kWh battery and 150kW (201hp) EM57 electric motor
**2020** - Entry-level 39kWh battery introduced with 100kW (134hp) motor still EM57 code
**2021** - Minor software updates to battery management and thermal systems
**2022** - Second-generation (SG2) e-Niro arrives with PE95 drive unit 150kW motor and 64.8kWh battery
Key Specs Snapshot
Every EM57 and PE95 drive unit fitted to the Kia e-Niro is covered below, with UK rebuilt pricing and known failure points.
Kia e-Niro Drive Unit Codes - Specifications & Replacement CostKia e-Niro Drive Unit Codes - Specifications & Replacement Cost
100kW / 150kW Electric Drive Unit (2019-2022)
Compatible Trim Levels
- e-Niro 2 (39kWh)
- e-Niro 2 Long Range
- e-Niro 3
- e-Niro 4+
- e-Niro First Edition (64kWh)


Kia e-Niro Drive Unit Codes - Specifications & Replacement Cost engine replacement
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£800-£1,800
Reconditioned
Addressed known issues, tested
£1,800-£3,000
Rebuilt
Full teardown, upgraded internals
£2,200-£3,400
Common Failure
Reduction gearbox bearing wear causing whining or milling noise at speed. Differential gear bolts may loosen, damaging the GDU housing and potentially causing loss of drive power. Inverter coolant pump failure leading to "Refill Inverter Coolant" warnings.


The Kia e-Niro's electric drive unit is generally reliable, but a small number of high-mileage and early-production examples have experienced reduction gearbox bearing wear, GDU bolt issues and inverter coolant pump failures. These problems dominate UK replacement enquiries for the e-Niro, particularly on examples approaching 50,000-100,000 miles. Every reconditioned drive unit through EnginesMarket includes upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.

Why Kia e-Niro Drive Units Develop Whining Noises
Affected Vehicles
Kia e-Niro (EM57 / PE95, 2019-present)
Typical Failure Mileage
30,000-100,000 miles (50,000km+)
Root Cause
The reduction gearbox uses ball bearings that can wear prematurely, particularly on vehicles used for high-speed motorway driving or those that have never had the gearbox oil changed. This presents as a whining, milling or tapping noise that increases with speed. The issue is well-documented in owner forums, with some reporting the problem as early as 13,000 miles.
Why It Happens
The reduction gearbox uses ball bearings that can wear prematurely, particularly on vehicles used for high-speed motorway driving or those that have never had the gearbox oil changed. This presents as a whining, milling or tapping noise that increases with speed. The issue is well-documented in owner forums, with some reporting the problem as early as 13,000 miles.
Dealer (parts + labour)
£1,200-£2,000
Specialist (parts + labour)
£800-£1,400
What it involves
Replacement of motor and reduction gearbox bearings using a third-party repair kit
Suitability
Effective if caught early; restores normal operation without full unit replacement
Dealer (parts + labour)
£3,200-£4,500
Specialist (parts + labour)
£1,800-£3,400
What it involves
Complete removal and replacement of the drive unit with a reconditioned EM57 or PE95 unit, including full system calibration
Suitability
Permanent fix; includes 12-month warranty and addresses all potential failure points
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
Minor - Bearing replacement kit Minor | £1,200-£2,000 | £800-£1,400 | Replacement of motor and reduction gearbox bearings using a third-party repair kit | Effective if caught early; restores normal operation without full unit replacement | |
Full Replacement - Reconditioned drive unit Best Value | £3,200-£4,500 | £1,800-£3,400 | Complete removal and replacement of the drive unit with a reconditioned EM57 or PE95 unit, including full system calibration | Permanent fix; includes 12-month warranty and addresses all potential failure points |
Vehicle Value Check
Vehicle Value Check
A typical Kia e-Niro is worth roughly **£8,000-£25,000** depending on age, mileage, battery size and condition. A reconditioned drive unit at specialist pricing (£1,800-£3,400 supply & fit) represents **10-30% of the vehicle's value** - comfortably justified for most examples. For higher-mileage 2019 examples approaching £8,000, a used drive unit may be a more economical alternative.
Our Recommendation
Our Recommendation
If your Kia e-Niro develops a whining or milling noise, have it diagnosed by an EV specialist immediately. The third-party bearing repair kit can be a cost-effective solution if caught early. However, if the noise is severe or accompanied by grinding, the damage may have extended to the GDU housing - in which case a full reconditioned drive unit is the only reliable fix. Anecdotal reports suggest dealers may replace components piecemeal in an attempt to run out the warranty; our specialists provide a single, transparent solution.

Don't Let Drive Unit Failure Write Off Your Kia e-Niro
Electric drive unit failures on the Kia e-Niro are relatively rare, but when they occur, the cost of dealer replacement can be eye-watering. Our network of vetted UK EV specialists provides transparent, like-for-like replacement options tailored to your exact EM57 or PE95 drive unit. Every reconditioned unit arrives with upgraded components, full bench testing, and a minimum 12-month unlimited mileage warranty, delivered and fitted nationwide. Stop comparing isolated repair quotes and secure a complete, warrantied drive unit solution at a fraction of main dealer pricing.
Compare reconditioned EM57 Kia e-Niro drive unit prices
Important Information
Important Information
"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 EnginesMarket'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 e-Niro. Every drive unit supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Kia e-Niro Electric Drive Unit ReplacementFrequently Asked Questions
Question 1How much does a Kia e-Niro drive unit replacement cost in the UK-
A reconditioned Kia e-Niro drive unit typically costs **£1,800-£3,400** supply-only, depending on the unit (EM57 or PE95) and condition. Used units start from **£800**. Supply & fit adds **£450-£850** labour, with EV-certified technicians required for installation.
- Reconditioned EM57: £1,800-£3,000
- Reconditioned PE95: £2,200-£3,800
- Used drive units: £800-£2,200
Question 2What are the signs of a failing Kia e-Niro drive unit-
The most common signs of a failing Kia e-Niro drive unit include a **whining, milling or tapping noise** that increases with speed, a **grinding noise** from the front of the vehicle, **loss of drive power**, and a **"Refill Inverter Coolant" warning** on the dashboard.
- Whining noise that gets louder with acceleration
- Grinding or tapping sound from the reduction gearbox
- Loss of power or sudden deceleration
- Coolant warning lights on the dashboard
Question 3Is it worth replacing the drive unit in a Kia e-Niro-
Replacing a Kia e-Niro drive unit is usually worthwhile if the battery, body and interior are in good condition. A reconditioned drive unit costs **£1,800-£3,800** versus **£8,000-£25,000** for a comparable used e-Niro. The battery is the most valuable component - if it is healthy, drive unit replacement is almost always justified.
- Reconditioned drive unit: £1,800-£3,800
- Comparable used e-Niro: £8,000-£25,000
- Battery health assessment recommended before committing to drive unit replacement
Question 4How long do Kia e-Niro drive units last-
With proper maintenance, Kia e-Niro drive units regularly exceed **150,000-200,000 miles**. However, some early-production units have experienced reduction gearbox bearing wear from **50,000km (31,000 miles)** onwards. Regular gearbox oil changes and avoiding prolonged high-speed driving can extend lifespan significantly.
- Well-maintained drive units: 150,000-200,000+ miles
- Bearing wear reported from 50,000km on some units
- Gearbox oil changes recommended every 60,000-80,000 miles
Question 5What's the difference between the EM57 and PE95 drive units-
The EM57 is fitted to first-generation e-Niros (2019-2022) and produces **150kW (201hp)** with **395 Nm** of torque in the 64kWh version, or **100kW (134hp)** in the 39kWh version. The PE95 is fitted to second-generation e-Niros (2022-present) and produces **150kW (201hp)** with **255 Nm** of torque. Both are permanent-magnet synchronous motors.
- EM57: 201hp / 395 Nm (64kWh) or 134hp / 395 Nm (39kWh)
- PE95: 201hp / 255 Nm (64.8kWh)
- Units are not interchangeable between generations without specialist calibration
Question 6How do I find my Kia e-Niro drive unit code before ordering a replacement-
Your Kia e-Niro drive unit code appears on the VIN plate under the bonnet, stamped on the drive unit casing, or on your V5C registration document. Common codes include **EM57** (2019-2022, all battery sizes) and **PE95** (2022-present, 64.8kWh). Enter your reg above for instant verification and compatible quotes.
- VIN plate under bonnet shows drive unit code
- V5C section D.2 lists the official unit code
- EM57 = 2019-2022, PE95 = 2022-present
Compare Kia e-Niro Drive Unit PricesToday
100+ Kia e-Niro drive units supplied through our network
12-Month Warranty on every reconditioned EM57 and PE95 unit
Nationwide UK delivery
supply & fit available by EV-certified technicians
Comparing Kia e-Niro drive unit quotes is completely free and carries no obligation. Enter your registration above, tell us your drive unit code, and receive transparent, fixed-price quotes from our vetted UK EV specialists within hours. Whether you need a used drive unit for a quick fix or a fully reconditioned EM57 or PE95 with upgraded components and a 12-month warranty, we'll match you with the right supplier for your budget. All work is carried out by EV-certified technicians who understand the specific requirements of high-voltage systems.

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