01
Suzuki Vitara
Generation/Chassis
LY (Facelift & later)
Badge(s)
1.4 Boosterjet Hybrid SZ-T, SZ5
Years
2018-Present
Link
Suzuki K14D Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 1.4-litre turbocharged "Boosterjet" mild-hybrid petrol engine fitted to the modern Suzuki Vitara and SX4 S-Cross. Reconditioned units start from £2,200 .
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£1,200
Reconditioned from
£2,200
Rebuilt from
£3,200
GB
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Quotes only from vetted UK engine specialists.
Key Specs
Suzuki K14D - Specifications at a Glance
Engine Code
K14D
Fuel
Petrol (Mild Hybrid / SHVS)
Configuration
1.4L inline-4, direct injection, turbocharged, 12V ISG
Power Output(s)
129-140 hp (depending on tune and model)
Years Produced
2018-Present
UK Models Fitted
2 Suzuki models - full list in Compatibility below
Replaced
K14C
Replaced By
-
Most Common Failure
12V SHVS integrated starter generator (ISG) wear and carbon buildup
Reconditioned Price Range
£2,200-£3,800 supply-only
Vetted UK specialists for K14D replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which Suzuki Models Use the K14D-
| Model | Generation/Chassis | Badge(s) | Years | Link |
|---|---|---|---|---|
 Suzuki Vitara | LY (Facelift & later) | 1.4 Boosterjet Hybrid SZ-T, SZ5 | 2018-Present | |
| Suzuki SX4 S-Cross | JY (Facelift & later) | 1.4 Boosterjet Hybrid SZ-T, SZ5 | 2018-Present |
02
Suzuki SX4 S-Cross
Generation/Chassis
JY (Facelift & later)
Badge(s)
1.4 Boosterjet Hybrid SZ-T, SZ5
Years
2018-Present
CROSS-BRAND
K14D is documented across 2 BMW applications spanning Vitara, SX4 S-Cross. Registration lookup confirms the exact suffix before quotes are sent.
Not sure which engine your car has?
Not sure which engine your car has- Enter your registration above - we'll confirm your exact K14D fitment before any quotes are sent.
Prices
Suzuki K14D Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £1,200-£2,200 | £1,720-£3,000 | 3-6 months |
Reconditioned | £2,200-£3,800 | £2,720-£4,600 | 12-24 months |
Rebuilt | £3,200-£5,000 | £3,720-£5,800 | 12-24 months |
The final K14D engine replacement cost is heavily influenced by the health of the 12V SHVS (mild-hybrid) components. Because the K14D relies on an Integrated Starter Generator (ISG) for stop-start functionality and torque assist, replacement units must be verified for SHVS compatibility. Units sold with documented turbo and ISG health command a premium. Additionally, the direct-injection design means intake valve carbon buildup is a factor in pricing used cores. See our full reconditioned engine cost guide for a detailed breakdown of what is included.
Labour Guide
Fitting a K14D engine typically takes 8-12 hours at £65/hr (independent) - confirm exact labour when comparing quotes.
Price Factors
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Common Problems
Suzuki K14D Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the K14D, based on real-world data and verified failure patterns.
Verified issue focus: 12V SHVS integrated starter generator (ISG) wear and carbon buildup.
1. 12V SHVS Integrated Starter Generator (ISG) & Battery Issues - 2018+ models
1. 12V SHVS Integrated Starter Generator (ISG) & Battery Issues - 2018+ models
Typical onset:
60,000-100,000 miles
What happens:
The K14D utilises a 12V SHVS mild-hybrid system where an Integrated Starter Generator (ISG) replaces the traditional alternator and starter motor. The ISG handles engine stop-start, regenerative braking, and torque assist. Over time, the internal bearings of the ISG can wear, or the associated 12V auxiliary battery can degrade, leading to stop-start system failures, dashboard warning lights, and heavy electrical drain.
Repair vs replace:
A standard 12V auxiliary battery replacement is inexpensive and routine. If the ISG motor itself fails, it requires replacement, which is a more costly ancillary repair but does not necessitate a full K14D engine replacement.
Read more about this issue
2. Carbon Buildup on Intake Valves & Turbo Wastegate Rattle
2. Carbon Buildup on Intake Valves & Turbo Wastegate Rattle
Typical onset:
50,000+ miles
What happens:
As a direct-injection "Boosterjet" engine, fuel is sprayed directly into the cylinder, meaning it does not wash over the back of the intake valves. Over time, carbon deposits accumulate, restricting airflow and causing rough idling or misfires. Additionally, early turbocharger wastegate actuators can develop play, causing a metallic rattle at idle.
Repair vs replace:
Walnut blasting or chemical cleaning resolves the carbon issue. A turbo actuator replacement or turbo swap addresses the rattle. Neither failure requires a full K14D engine replacement unless severe neglect has led to catastrophic overheating or oil starvation.
Read more about this issue
Post-2019 revisions of the K14D received minor updates to the SHVS software mapping and turbo actuator linkage, significantly reducing the frequency of wastegate rattle and electrical gremlins seen in the earliest 2018 launch models .
Compare rebuilt K14D prices with the failure already addressed
Engine Variants
How to Confirm You Have the K14D
The K14D engine code is stamped on a machined pad on the engine block, typically visible near the oil filter housing or on the cylinder head. It is also explicitly listed on your vehicle’s V5C logbook under "Engine Capacity/Code" and can be verified via a VIN decode. Owners frequently confuse the K14D with the older non-hybrid K14C , the naturally aspirated K15B , or the smaller 1.0L K10C . While they share the "Boosterjet" or "Dualjet" naming conventions and similar displacements, the K14D is uniquely equipped with the 12V SHVS ISG mounting points, specific high-voltage wiring looms, and dedicated ECU mapping for the mild-hybrid system. Fitting a non-hybrid K14C or a different revision will result in immediate ECU communication errors, ISG failure, and incorrect boost levels. Not 100% sure- Enter your registration above - we will confirm your exact K14D fitment before any quotes are sent.
Easily Confused
K14C
the non-hybrid 1.4L Boosterjet engine, which lacks the 12V SHVS integrated starter generator (ISG) and uses older ECU mapping.
Alternative / Next-Gen Code
K15B
the 1.5L naturally aspirated Dualjet engine, offering a simpler, non-turbo alternative for Vitara and SX4 S-Cross models without the mild-hybrid electrical complexity.
Related JLR Variants
K10C
the smaller 1.0L Boosterjet engine found in the Swift and Ignis, sharing the modern turbo architecture but requiring entirely different internals, looms, and mounting points.
Confirm the exact K14D fitment
Buying Guide
Buying a Replacement K14D - What to Choose
Choosing the right replacement route depends on your budget, risk tolerance, and ownership goals. Here's a breakdown of your options.
Used:
A used K14D is a viable budget option given the engine's robust core design, but it carries specific hybrid risks. You must ensure the donor vehicle's 12V SHVS system was fully functional and that the ISG showed no signs of bearing wear or electrical faults. Inheriting a used K14D without verifying the hybrid components can lead to immediate, costly ancillary repairs.
Reconditioned:
A proper reconditioned K14D is the most sensible choice for long-term peace of mind. Reputable suppliers will thoroughly clean the direct-injection intake valves, inspect the turbo actuator, and ensure the block is fully compatible with the SHVS ISG system. This directly addresses the engine's known wear points while retaining the reliable core block and hybrid readiness.
Rebuilt:
A full rebuild is rarely justified for the K14D unless the block has suffered catastrophic damage from severe overheating or a complete loss of oil pressure. A quality rebuild will include newly machined surfaces, updated turbo components, and all-new internal bearings, effectively resetting the engine's lifespan.
Supply & Fit Line:
We connect you with vetted UK specialists offering full K14D supply and fit packages, including nationwide delivery, professional installation, and a minimum 12-month warranty for complete peace of mind.
Vehicle Value Note:
The typical host vehicles for the K14D (e.g., modern Vitara and SX4 S-Cross facelift models) currently hold a market value between £8,000 and £18,000 . With a reconditioned replacement costing an estimated £2,200-£3,800, the repair represents a highly sensible fraction of the vehicle's value. The K14D engine replacement is a financially viable and recommended alternative to vehicle replacement for almost all examples of these crossovers.
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Related Engines
Engines Related to the Suzuki K14D
Explore engines that are closely related to the Suzuki K14D, including its predecessor, successor, and key family variants.
Predecessor
K14C
the non-hybrid 1.4L Boosterjet engine, which lacks the 12V SHVS integrated starter generator (ISG) and uses older ECU mapping.
Sibling
K15B
the 1.5L naturally aspirated Dualjet engine, offering a simpler, non-turbo alternative for Vitara and SX4 S-Cross models without the mild-hybrid electrical complexity.
Sibling
K10C
the smaller 1.0L Boosterjet engine found in the Swift and Ignis, sharing the modern turbo architecture but requiring entirely different internals, looms, and mounting points.
FAQ
Suzuki K14DFrequently Asked Questions
Question 1How much does a Suzuki K14D engine replacement cost-
A reconditioned Suzuki K14D engine typically costs between £2,200 and £3,800 for supply only, with fully fitted prices ranging from £2,720 to £4,600 . Supply-only reconditioned units include inspected turbochargers and verified SHVS compatibility. Labour typically adds 8-12 hours at independent specialist rates.
- Supply-only reconditioned units include inspected turbochargers and verified SHVS compatibility.
- Labour typically adds 8-12 hours at independent specialist rates.
Question 2What is the most common problem with the K14D Boosterjet Hybrid engine-
The most documented issues are 12V SHVS integrated starter generator (ISG) wear and turbocharger wastegate rattle, typically appearing between 60,000 and 100,000 miles. ISG wear can cause stop-start system failures and dashboard warning lights. Wastegate rattle is a known mechanical trait of early Boosterjet turbos, though often resolved with actuator replacement.
- ISG wear can cause stop-start system failures and dashboard warning lights.
- Wastegate rattle is a known mechanical trait of early Boosterjet turbos, though often resolved with actuator replacement.
Question 3Which Suzuki models use the K14D engine-
The K14D Boosterjet Hybrid is fitted to the Suzuki Vitara (LY facelift and later) and SX4 S-Cross (JY facelift and later) from 2018 onwards. It is Suzuki’s current-generation mild-hybrid petrol engine for its core crossover lineup. Always verify your specific chassis code, as earlier models use the non-hybrid K14C or naturally aspirated K15B.
- It is Suzuki’s current-generation mild-hybrid petrol engine for its core crossover lineup.
- Always verify your specific chassis code, as earlier models use the non-hybrid K14C or naturally aspirated K15B.
Question 4Should I buy a used or reconditioned K14D engine-
A reconditioned K14D is strongly recommended over a used unit due to the engine's specific hybrid and turbo wear patterns. Used units risk inheriting undocumented ISG bearing wear, degraded turbos, or heavy intake valve carbon buildup. Reputable reconditioners verify SHVS compatibility, clean the direct-injection valves, and inspect the turbo as standard.
- Used units risk inheriting undocumented ISG bearing wear, degraded turbos, or heavy intake valve carbon buildup.
- Reputable reconditioners verify SHVS compatibility, clean the direct-injection valves, and inspect the turbo as standard.
Question 5How do I know if my car has the K14D engine-
The K14D code is stamped on a machined pad on the engine block, typically visible near the oil filter housing, and is explicitly listed on your V5C logbook. It is frequently confused with the older non-hybrid K14C or the smaller 1.0L K10C. Fitting the wrong revision will result in immediate ECU communication errors, ISG failure, and incorrect boost levels.
- It is frequently confused with the older non-hybrid K14C or the smaller 1.0L K10C.
- Fitting the wrong revision will result in immediate ECU communication errors, ISG failure, and incorrect boost levels.
Compare Suzuki K14D Engine Prices Today
Get a free, no-obligation price comparison for your exact Suzuki K14D. Our registration lookup confirms your fitment before any quotes are sent, ensuring you receive parts specific to your Vitara or SX4 S-Cross. With reconditioned K14D units offering excellent value, comparing takes two minutes and could save you hundreds on your repair.
Vetted UK Specialists
Vetted UK specialists for K14D replacements
Minimum 12-Month Warranty
Minimum 12-month warranty on reconditioned and rebuilt options
Nationwide Delivery
Nationwide delivery plus supply and fit availability
Expert Support
Secure enquiry - no spam. Quotes only from vetted UK engine specialists.
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