Cylinder Head – 8140 Engine Series Sofim Iveco FPT 8140.23 8140.43 S9W 908587 908584

Product NO.

ML NO.	OEM NO.	REF NO.
MLG124A	99443889 500355509 7701470777 4501283	908587
MLG124B	2991607 4404698 98448108	908584

OEM cylinder head for Sofim 8140 diesel engine 2.5 Sofim engine head for Citroën C25 / Fiat Ducato 8140.43S complete cylinder head with valves S9W Renault Master 2.8 DTI cylinder head replacement Fiat/Iveco 2.4L / 2.5L / 2.8L OHV diesel cylinder head assembly

Product Information Cylinder Head

2.4L–2.8L | Inline-4 | Turbo/NA Diesel | OHV / SOHC | 8-Valve

1. Engine Family Overview

The 8140 series engines are classic and robust diesel engines developed by Sofim (Société Franco-Italienne de Moteurs) and later manufactured under Iveco/FPT (Fiat Powertrain). They have been widely used in European vans, trucks, industrial equipment, and marine applications from the 1980s through the early 2000s.

Engine Code	Displacement	Turbocharged?	Common Use
8140.07	2.4L	No	Fiat Daily, Ducato
8140.23	2.5L	No	Fiat Ducato, Citroën C25
8140.27	2.5L	Yes (Turbo)	Iveco Daily TurboDiesel
8140.43	2.8L	Yes (Turbo)	Iveco Daily, Ducato JTD
S9W	2.5L	Yes (Renault ID)	Renault Master, Trafic

Note: The S9W engine is Renault’s designation for the 8140.43 Sofim engine adapted for Renault vehicles.

2. Cylinder Head Technical Specifications

Feature	Specification
Configuration	Inline 4-cylinder
Cylinder Head Type	OHV or SOHC (8 valves total)
Cylinder Head Material	Cast iron or aluminum (varies by year)
Fuel System	Indirect injection (mechanical pump)
Cooling System	Water-cooled
Valve Mechanism	Rocker arm with pushrods (OHV)
Camshaft Position	Block-mounted (pushrod OHV) or head-mounted (SOHC)

3. Compatible Vehicle Applications

Engine Code	Vehicle(s) & Brand
8140.07	Fiat Daily, Fiat Campagnola, Iveco Massif
8140.23	Fiat Ducato, Peugeot J5, Citroën C25, Talbot Express
8140.27	Iveco Daily 2.5 TurboDiesel, Fiat 2.5 TD
8140.43	Iveco Daily 2.8 TD, Fiat Ducato 2.8 JTD, Peugeot Boxer
S9W	Renault Master II 2.8 DTI, Renault Mascott

4. OEM Cylinder Head Part Numbers (Examples)

Description	Common OEM Numbers
Bare Cylinder Head	98404753, 98450769, 500305087, 504014179
Complete Head	99463865, 500355279, 98438658, 504014184
Gasket Set	500385072, 98438651

Exact part numbers depend on fuel system (Bosch, Lucas), prechamber type, EGR, and turbo configuration.

5. Common Cylinder Head Issues

Symptom	Likely Cause
Cracks between valves	Overheating / thin casting on early models
Blown head gasket	Old MLS gaskets, incorrect torque procedure
Valve seat erosion	High mileage, poor fuel quality
Warped head	Coolant loss or engine overheat
Glow plug thread damage	Seized plugs during removal

6. Installation Notes

Always pressure test used heads before installation
Resurface mating face if head is warped (>0.05mm)
Use new head bolts and follow step-by-step torque pattern
Inspect pre-combustion chambers and glow plug threads
Check and reset valve lash if applicable (OHV systems)