The Fiat 192 B4.000 – Petrol is a 1,581 cc, inline-four, naturally aspirated engine produced between 1992 and 1998. It was developed as a modern, fuel-efficient powerplant for Fiat's compact car lineup, featuring a cast-iron block, aluminium SOHC head, and multi-point fuel injection (MPFI). In standard configuration, it delivered 60 kW (82 PS) at 5,500 rpm and 128 Nm of torque at 3,300 rpm, offering improved drivability and emissions performance over earlier variants.
Fitted to the Fiat Tipo (1992–1995), Fiat Tempra (1992–1994), and Fiat Punto (1995–1998), the 192 B4.000 – Petrol was engineered for economical daily use with strong low-end torque and smooth throttle response. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, enabling Euro 2 compliance across all production years.
One documented reliability concern involves early failure of the thermostat due to material degradation, highlighted in Fiat Service Information Bulletin 07/94. The issue arises from prolonged exposure to high coolant temperatures, leading to incorrect temperature regulation and potential overheating. From 1995 onward, an upgraded thermostat with reinforced housing and improved wax element was introduced to enhance durability.
All production years (1992–1998) meet Euro 2 emissions standards (VCA UK Type Approval #VCA/EMS/8901).
The Fiat 192 B4.000 – Petrol is a 1,581 cc inline-four, naturally aspirated engine engineered for compact passenger vehicles (1992–1998). It features a SOHC valvetrain with Magneti Marelli MPFI and was designed to meet Euro 2 emissions standards. The engine delivers balanced performance with improved fuel efficiency and reduced emissions over earlier 192-series units.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,581 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 80.0 mm × 78.7 mm | |
| Power output | 60 kW (82 PS) @ 5,500 rpm | |
| Torque | 128 Nm @ 3,300 rpm | |
| Fuel system | Magneti Marelli MPFI electronic injection | |
| Emissions standard | Euro 2 | |
| Compression ratio | 9.6:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Single cam belt with hydraulic tensioner | |
| Oil type | SAE 10W-40 (API SH/CD) | |
| Dry weight | 117 kg |
The SOHC MPFI design provides smooth throttle response and improved fuel consistency but requires adherence to 30,000 km cam belt replacement intervals to prevent valve damage. SAE 10W-40 API SH/CD oil is recommended for optimal component protection. Fuel system longevity depends on regular filter changes and use of unleaded petrol meeting EN 228 standards. The upgraded thermostat introduced in 1995 should be used as a replacement on all models to prevent overheating. Lambda sensor monitoring is essential to maintain catalytic converter efficiency and prevent overheating.
Oil Specs: Requires SAE 10W-40 API SH/CD specification (Fiat Owner's Manual TIPO92). Synthetic oils not recommended for high-mileage engines.
Emissions: All units (1992–1998) comply with Euro 2 (VCA Type Approval #VCA/EMS/8901).
Power Ratings: Measured under ISO 1585. Output consistent across model range with no market-specific variants.
Fiat Technical Information System (TIS): Docs F192B, F192FUEL, SIB 07/94
VCA Type Approval Database (VCA/EMS/8901)
ISO 1585:1996 Road vehicles — Test method for the measurement of fuel consumption
The Fiat 192 B4.000 – Petrol was used across Fiat's Tipo/Tempra/Punto platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-fuel mapping revisions in the Punto and reinforced mounts in the Tempra-and from launch met Euro 2 compliance with catalytic converter integration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the right-side cylinder block near the exhaust manifold (Fiat TIS F192ID). The 8th VIN digit indicates engine type ('L' for 192 B4.000). All models feature a single catalytic converter and lambda sensor. Critical differentiation from diesel variant: Petrol version uses Magneti Marelli MPFI injectors and distributor-based ignition; diesel variant has mechanical injection pump. Service parts require model-year verification—thermostats for pre-1995 models differ in housing material and temperature rating (Fiat SIB 07/94).
The 192 B4.000 – Petrol's primary reliability risk is thermostat failure in pre-1995 units, with elevated incidence in high-temperature climates. Internal Fiat service reports from 1996 indicated a significant number of pre-1995 engines suffering from overheating due to thermostat malfunction, while VCA field data shows lambda sensor degradation in poorly maintained units. Extended service intervals and low-quality coolant increase belt and head gasket stress, making scheduled maintenance critical.
Analysis derived from Fiat technical bulletins (1992-1998) and UK DVSA failure statistics (1995-2000). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 192B4000.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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