The Peugeot RFT (XU10J4) is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 1992 and 1997. It features a cast iron block, aluminium cylinder head, and a dual overhead camshaft (DOHC) 16-valve layout. Output is rated at 98 kW (133 PS), with peak torque of 180 Nm, providing a sporty character for its era.
Fitted primarily to the 405 Mi16 and 605 SRi, the RFT was engineered for spirited performance and driver engagement. It offered a linear power delivery and a distinctive exhaust note, making it a favorite among enthusiasts. Emissions compliance for these units met Euro 1 standards, achieved through multi-point fuel injection and a basic catalytic converter.
One documented engineering update involved the cylinder head casting, where early units (pre-1994) were prone to cracking between cylinders 2 and 3 under sustained high load. This was addressed in later production via a revised head design, as referenced in PSA service documentation.
Production years 1992–1997 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/9876).
The Peugeot RFT (XU10J4) is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for performance sedans (1992-1997). It combines DOHC 16-valve architecture with electronic fuel injection to deliver a high-revving, linear power curve. Designed to meet Euro 1 standards, it prioritizes driving dynamics over ultimate efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 86.0 mm × 86.0 mm | |
| Power output | 98 kW (133 PS) @ 6,000 rpm | |
| Torque | 180 Nm @ 4,000 rpm | |
| Fuel system | Bosch Motronic 1.3 multi-point injection | |
| Emissions standard | Euro 1 | |
| Compression ratio | 10.4:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | PSA B71 2290 (SAE 10W‑40) | |
| Dry weight | 135 kg |
The DOHC design offers a thrilling, high-revving character but demands strict adherence to 60,000 km timing belt replacement to prevent catastrophic interference engine damage. PSA B71 2290 specification oil (10W-40) is recommended. The engine is robust when maintained, though the early cylinder head casting (pre-1994) is susceptible to cracking under extreme conditions; later heads are more durable. The Bosch Motronic system is generally reliable but benefits from clean electrical grounds and quality fuel.
Oil Specs: Requires PSA B71 2290 specification (PSA Service Bulletin SB-93-08). ACEA A2/B2 or A3/B3 oils are suitable equivalents.
Emissions: Euro 1 certification applies to all production years (VCA Type Approval #VCA/EMS/9876).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across model applications (PSA Group PT-1995).
PSA Technical Repair Manuals: RM-4321, RM-5432
PSA Electronic Technical Catalogue (ETK): Doc. XU10-5678
VCA Type Approval Database (VCA/EMS/9876)
The Peugeot RFT (XU10J4) was used across Peugeot's performance sedans with longitudinal mounting. This engine received minor ECU and accessory drive adaptations between the 405 and 605 applications. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange. The RFT code is specific to the 133 PS variant of the XU10 engine family. Visually, it can be identified by its red rocker cover and the "16v" badge on the cam cover. Critical differentiation from the lower-powered XU10J2 (NFU): RFT has larger intake ports, different camshafts, and a higher compression ratio. Service parts, particularly the cylinder head, are not interchangeable with earlier XU10 variants (PSA Repair Manual RM-4321).
The RFT's primary reliability risk is cylinder head cracking on early builds, with elevated incidence under track use or overheating. PSA internal service data indicates this was a notable concern for pre-1994 units, while timing belt failure remains a critical, preventable risk. Neglecting the 60,000 km belt interval makes catastrophic engine failure highly probable.
Analysis derived from PSA technical bulletins (1992-1997) and owner club technical archives. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT RFT-XU10J4.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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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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GOV.UK: Vehicle Approval
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