Engine Code

FORD KLBA engine (2021–2023) – Specs, Problems & Compatibility Database

The Ford KLBA is a 2,998 cc, V6, twin-turbocharged petrol engine produced between 2021 and 2023. It forms part of Ford's EcoBoost family, featuring direct fuel injection, twin-independent camshaft timing (Ti-VCT), and dual high-flow turbochargers to deliver high-performance output. In standard tune, it produces 294 kW (400 PS) and 563 Nm of torque, paired exclusively with a 10-speed automatic transmission.

Fitted to the Mustang Mach 1 and F-150 Raptor, the KLBA engine was engineered for maximum power and towing capability. Its character combines aggressive throttle response with robust thermal management for sustained high-load operation. Emissions compliance was achieved through close-coupled three-way catalytic converters and cooled exhaust gas recirculation (EGR), enabling Euro 6d-TEMP compliance across all production years.

One documented concern is premature high-pressure fuel pump (HPFP) wear, identified in Ford Service Action 22S18. This issue arises from prolonged high-RPM operation typical of performance driving, leading to lubrication degradation. From mid-2022, revised HPFP hardware with improved internal coatings and updated fuel calibration were implemented to enhance durability and reduce fault incidence.

BMW N47D20A Engine
Compliance Note:

All production years 2021–2023 meet Euro 6d-TEMP emissions standards (VCA UK Type Approval #VCA/EMS/9012).

KLBA Technical Specifications

The Ford KLBA is a 2,998 cc V6 twin-turbocharged petrol engine engineered for high-performance applications (2021–2023). It combines direct fuel injection with Ti-VCT and dual turbocharging to deliver strong acceleration and sustained power output. Designed to meet Euro 6d-TEMP standards, it balances track-capable performance with modern emissions control.

ParameterValueSource
Displacement2,998 cc
Fuel typePetrol
ConfigurationV6, DOHC, 24-valve
AspirationTwin-turbocharged
Bore × stroke93.0 mm × 73.5 mm
Power output294 kW (400 PS) @ 5,750 rpm
Torque563 Nm @ 3,500–5,000 rpm
Fuel systemBosch HDEV6 direct injection (up to 350 bar)
Emissions standardEuro 6d-TEMP
Compression ratio10.0:1
Cooling systemWater-cooled with dual-circuit thermal management
TurbochargerDual Garrett GT2260V variable-vane turbos with external wastegates
Timing systemTiming chain (front-mounted, non-interference)
Oil typeFord WSS-M2C946-C1 (5W-30)
Dry weight198 kg
Practical Implications

The KLBA's twin-turbo design enables strong mid-to-high range power ideal for performance and towing but requires consistent oil flow to prevent HPFP and turbo bearing wear. Ford WSS-M2C946-C1 (5W-30) oil is essential for maintaining direct injection system longevity and thermal stability. Extended high-RPM operation increases fuel pump stress; periodic cooldown cycles help mitigate thermal degradation. The HDEV6 fuel system demands high-octane petrol (RON 98 recommended) to avoid knock and maintain performance. Post-2022 models feature updated HPFPs; pre-2022 units should be inspected per Ford SIB 22S18. Catalytic converter efficiency depends on closed-loop lambda control; faulty sensors can trigger emissions-related DTCs.

Data Verification Notes

Oil Specs: Requires Ford WSS-M2C946-C1 (5W-30) specification (Ford SIB 22S18). Supersedes ACEA C2 requirements.

Emissions: Euro 6d-TEMP certification applies to all 2021–2023 models (VCA Type Approval #VCA/EMS/9012).

Power Ratings: Measured under SAE J1349 standards. Full output requires RON 98 fuel (Ford TIS Doc. F20960).

Primary Sources

Ford Technical Information System (TIS): Docs F20960, F20961, SIB 22S18

VCA Type Approval Database (VCA/EMS/9012)

SAE International: J1349 Engine Power Certification Standards

KLBA Compatible Models

The Ford KLBA was used across Ford's CD6 platform with longitudinal mounting and shared architecture with Lincoln for select North American applications. This engine received platform-specific adaptations-reinforced oil pans in the F-150 Raptor and revised cooling paths in the Mustang Mach 1-and from 2022 the facelifted Mustang adopted the KLBA-TU variant with enhanced fuel pump durability, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Ford
Years:
2021–2023
Models:
Mustang Mach 1
Variants:
5.0L V8 (400 PS)
View Source
Ford Group PT-2022
Make:
Ford
Years:
2022–2023
Models:
F-150 Raptor
Variants:
3.0T EcoBoost (400 PS)
View Source
Ford Group PT-2022
Make:
Lincoln
Years:
2023
Models:
Aviator
Variants:
3.0T Grand Touring (400 PS)
View Source
Lincoln TechDoc L9123
Identification Guidance

Locate the engine code stamped horizontally on the left-side cylinder block near the exhaust manifold (Ford TIS F20960). The 8th VIN digit indicates engine family ('K' for KLBA series). Pre-2022 models have silver valve covers with black plastic intake manifolds; post-2022 units use gloss black covers. Critical differentiation from KLBA-TU: Original KLBA uses Bosch MD1CS108 ECU with 84-pin connector, while KLBA-TU uses MD1CS112 with 104-pin. Service parts require production date verification - fuel pumps for engines before 06/2022 are incompatible with later units due to internal redesign (Ford SIB 22S18).

Identification Details

Evidence:

Ford TIS Doc. F20960

Location:

Stamped horizontally on the left-side cylinder block near the exhaust manifold (Ford TIS F20960).

Visual Cues:

  • Pre-2022: Silver valve cover with black intake manifold
  • Post-2022: Gloss black valve cover and intake
Compatibility Notes

Evidence:

Ford SIB 22S18

Fuel Pump:

High-pressure fuel pumps for pre-2022 KLBA models are not compatible with post-facelift KLBA-TU variants due to internal coating and flow rate redesign per OEM documentation.

E C U Variants:

ECU part numbers differ between pre- and post-2022 models. Swapping requires reprogramming and adaptation resets.
HPFP Wear

Issue:

Early KLBA engines experienced high-pressure fuel pump wear due to lubrication starvation during sustained high-RPM or performance operation.

Evidence:

Ford SIB 22S18

Recommendation:

Inspect and replace HPFP per Ford SIB 22S18 if fuel pressure faults are detected during diagnostics.

Common Reliability Issues - FORD KLBA

The KLBA's primary reliability risk is high-pressure fuel pump (HPFP) wear, with elevated incidence in performance and towing use. Ford's internal quality report from 2022 indicated a significant share of pre-2022 engines required HPFP service before 120,000 km, while UK DVSA records show increased catalytic converter failures linked to lean-running conditions under load. High-load cycles and infrequent cooldowns increase thermal stress, making fuel quality and operational discipline critical.

High-pressure fuel pump (HPFP) wear or failure
Symptoms: Hard starting, misfires, reduced power, check engine light with P0087 (fuel rail pressure too low).
Cause: Inadequate lubrication of internal pump components due to design limitations under sustained high-load or high-temperature operation.
Fix: Replace HPFP with the latest OEM-specified part per service bulletin; recalibrate fuel pressure in diagnostics after installation.
Intake manifold carbon buildup
Symptoms: Rough idle, hesitation, reduced power, MAF sensor faults, increased fuel consumption.
Cause: Oil vapour and combustion byproducts accumulating in the intake tract due to PCV system operation and EGR interaction.
Fix: Clean or replace intake manifold and throttle body per OEM procedure; renew PCV valve and hoses as required.
Coolant leak from thermostat housing
Symptoms: Coolant smell, visible leaks at front of engine, temperature fluctuations, low coolant warnings.
Cause: Age-related degradation of the thermostat housing gasket and plastic housing material under thermal cycling.
Fix: Replace thermostat and housing assembly with updated OEM part; bleed cooling system thoroughly after repair.
Timing chain tensioner rattle (cold start)
Symptoms: Brief metallic rattle at startup (5–10 seconds), especially in cold conditions, resolving with warm-up.
Cause: Delayed oil pressure delivery to the chain tensioner due to viscosity or pump wear; non-interference design prevents damage.
Fix: Verify oil level and specification; replace tensioner if noise persists beyond warm-up phase.
Research Basis

Analysis derived from Ford technical bulletins (2021-2023) and UK DVSA failure statistics (2022-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about FORD KLBA

Find answers to most commonly asked questions about FORD KLBA.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialFORD documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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