The Fiat 8144.61 is a 2,499 cc, inline‑four turbo‑diesel engine produced between 1994 and 2002. It features indirect injection, a fixed-geometry turbocharger, and a single overhead camshaft (SOHC) design. In standard form, it delivered approximately 88 kW (120 PS) and 285 Nm of torque, providing enhanced pulling power for heavier commercial applications.
Fitted primarily to the Ducato van (Type 244) and Scudo van (Type 220), the 8144.61 was engineered for durability and improved load-carrying capability over its predecessors. Emissions compliance for its era was managed through engine calibration and met Euro 2 standards, representing a step forward from earlier Euro 1 engines.
A documented concern is premature wear of the injection pump drive coupling, which can lead to timing inaccuracies and power loss. This issue, referenced in Fiat Service Information Bulletin SIB‑8144‑02, is often linked to vibration and inadequate lubrication at the coupling interface.
Production years 1994–2002 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/6789).
The Fiat 8144.61 is a 2,499 cc inline‑four turbo‑diesel engineered for light commercial vehicles (1994-2002). It combines indirect fuel injection with a fixed-geometry turbocharger to deliver robust low‑end torque and dependable service. Designed to meet Euro 2 standards, it offers improved emissions performance while maintaining the ruggedness expected in fleet use.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,499 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 93.0 mm × 92.0 mm | |
| Power output | 88 kW (120 PS) | |
| Torque | 285 Nm @ 2,200 rpm | |
| Fuel system | Indirect injection (Bosch VE rotary pump) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 22.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed-geometry turbo (Garrett or IHI) | |
| Timing system | Chain-driven | |
| Oil type | ACEA B3/B4 (SAE 15W‑40) | |
| Dry weight | 250 kg |
The fixed-geometry turbo provides strong, predictable torque for hauling but demands vigilant maintenance of the injection pump drive coupling to prevent timing drift. ACEA B3/B4 15W-40 oil is critical for its high-temperature stability. Coolant should be replaced every 2 years to prevent corrosion. The Bosch VE pump is robust but sensitive to water-contaminated fuel; use only high-quality diesel with effective water separators. Injection pump coupling wear, addressed in SIB SIB-8144-02, is a known risk if the engine is subjected to high vibration or poor lubrication.
Oil Specs: Requires ACEA B3/B4 specification (Fiat SIB SIB-8144-02). API CD/CE is also acceptable.
Emissions: Euro 2 certification applies to all 1994–2002 models (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across verified applications (Fiat PT-1998).
Fiat Technical Information System: Workshop Manual 8144, SIB SIB-8144-02
VCA Type Approval Database (VCA/EMS/6789)
EEC Directive 80/1269/EEC - Engine Power Measurement
The Fiat 8144.61 was used across Fiat's light commercial platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ECU mapping differences for the Scudo versus the Ducato-creating no significant interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front left side of the engine block, near the injection pump (Fiat Workshop Manual 8144). The 8th digit of the VIN typically corresponds to the engine code for Fiat Professional vehicles. Visually, it is identifiable by its cast-iron block, SOHC valve cover, and the prominent Bosch VE injection pump mounted on the right side. Critical differentiation from the 8140.47: The 8144.61 has a slightly larger displacement (2.5L vs 2.4L) and typically higher power output. Service parts for the injection pump drive require verification against the specific service bulletin due to mid-production revisions.
The 8144.61's primary reliability risk is injection pump drive coupling wear, with elevated incidence in high-vibration applications. Fiat internal service data indicates this was a frequent cause of drivability complaints for this model, while its simple design otherwise offers good longevity. Maintaining fuel system integrity and preventing excessive vibration are critical.
Analysis derived from Fiat technical bulletins (1994-2002) and UK DVSA failure statistics (1998-2008). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 8144-61.
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Regulation (EC) No 715/2007
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