The Ford RTK is a 1,999 cc, inline‑four turbo‑petrol engine introduced in 2021 as part of Ford’s updated EcoBoost family. It features a DOHC 16‑valve layout, direct fuel injection, and a single twin‑scroll turbocharger with an integrated exhaust manifold. In standard form it produces 175–230 kW (238–313 PS) with torque between 370–420 Nm, offering strong mid‑range response and high‑rpm refinement.
Fitted to performance and premium models such as the Focus ST, Kuga ST —…
All production years (2021–present) meet Euro 6d standards .
The Ford RTK is a 1,999 cc inline‑four turbo‑petrol engineered for compact performance and crossover applications (2021–present). It combines direct injection with a twin‑scroll turbocharger to deliver strong mid‑range torque and responsive high‑rpm power. Designed to meet Euro 6d from launch, it balances sporty character with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol (ULP 95 RON min, 98 RON recommended) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (twin‑scroll) | |
Bore × stroke | 87.5 mm × 83.1 mm | |
Power output | 175–230 kW (238–313 PS) | |
Torque | 370–420 Nm @ 2,000–4,500 rpm | |
Fuel system | Bosch HDP6 high‑pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled with dual electric pumps | |
Turbocharger | Single twin‑scroll with integrated exhaust manifold (Honeywell Garrett) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | Ford WSS‑M2C949‑A (SAE 0W‑20) | |
Dry weight | 141 kg |
The Ford RTK was used across Ford's C‑Car and CD‑Car platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—enhanced cooling in the Kuga ST-Line Vignale, reinforced mounts in the Focus ST—and from Q1 2023 the Puma ST adopted updated ECU calibration for cam follower durability, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The RTK is robust when maintained properly. Early models (2021–Q1 2023) had HPFP cam follower concerns, but Ford’s Q1 2023 update resolved most issues. Using 98 RON fuel, adhering to oil specs (0W-20 WSS-M2C949-A), and allowing post-drive cooldown greatly enhance longevity.
Top issues include HPFP cam follower wear (pre-Q1 2023), GPF clogging from short trips, turbo wastegate rattle, and minor valve cover oil seepage. These are documented in Ford TSBs and are manageable with proper maintenance.
The RTK powers the Focus ST (Mk4, 2021–present), Kuga ST-Line Vignale 2.0L (2021–present), and Puma ST (2022–present). All are transverse-mounted applications in Ford’s global C- and CD-platform vehicles, compliant with Euro 6d emissions.
Aftermarket ECU tuning is common on the RTK platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In a Focus ST, expect ~8.3 L/100km (city) and ~5.8 L/100km (highway), or ~41 mpg UK combined. Real-world mixed driving typically returns 35–45 mpg (UK), depending on driving style and GPF regeneration cycles.
Yes. The RTK is an interference engine. Timing chain failure—though rare due to front-mounted design—could cause piston-to-valve contact. Ford specifies the chain as lifetime, but severe oil neglect may compromise it.
Ford mandates 0W-20 synthetic oil meeting WSS-M2C949-A specification. This low-viscosity oil ensures GPF compatibility and proper chain lubrication. Do not substitute with older 5W-30 or non-approved oils.
Comprehensive technical documentation and regulatory references
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Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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