ZZ51187 cylinder block for Perkins 4.41. Fits Massey Ferguson 390 & Landini 8500. Dry liner design. CNC line-bored. Get bulk pricing on this unit.
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This ZZ51187 cylinder block assembly is a premium direct-fit core engineered for the naturally aspirated 4-cylinder Perkins 4.41 (4.4L) diesel engine featuring dry liner architecture. Manufactured from high-strength grey cast iron, it fits perfectly on Perkins cylinder block applications like the Massey Ferguson 390 and Landini 8500.
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Our premium aftermarket Perkins 4.41 cylinder block assembly delivers the structural strength and high load-bearing capacity required by heavy agricultural tractors and industrial material handling fleets. Engineered in strict alignment with Perkins’ legendary off-highway standards—trusted worldwide as the heart of every great machine for agricultural tractor parts and industrial power applications—our blocks restore original engine torque. Optimized for the 4.4L Perkins 4.41 natural aspiration engine, this block directly replaces the OEM Massey Ferguson 390 block and Massey Ferguson 390T/393/398/399 tractors (MF 390 engine block). Whether overhauling a Landini 8500 block, servicing a JCB forklift, or overhauling an industrial power pack, our block ensures factory alignment.
In demanding agricultural operations, dry sleeve engines frequently suffer from liner seat fretting, core plug corrosion, and main cap bolt stretch under heavy cyclic loads. This structural distortion eventually leads to cylinder head gasket blowout, loss of oil pressure, piston blow-by, and dynamic crankshaft binding. To eliminate these common off-highway failures, our Perkins cylinder block wholesale inventory features premium heavy-duty metallurgy. Cast with a high-nickel, chromium-alloyed grey iron matrix (Brinell hardness HB 187-241) and finished with dynamic line-bored precision, our blocks offer outstanding resistance to thermal fatigue and physical flexing, securing stable oil clearance over long multi-season operations.
| Parameter | Value |
|---|---|
| Engine Type | Perkins 4.41 (4 cylinder natural aspiration) |
| Sleeve Structure | Dry liner architecture (precision interfered fit) |
| Material Composition | High-strength alloy grey cast iron (HB 187-241) |
| Primary OEM Part Number | ZZ51187 |
| Cross References | 3135X042 cross reference casting, ZZ51187 Replacement |
| Main Bearing Alignment | Line-bored precision CNC parent bore machining |
| Deck Surface Finish | CNC deck surfacing for premium flatness |
| Quality Testing | 100% pressure leak and casting density testing |
Our manufacturing facilities support a complete range of low-wear Perkins engine blocks and cylinder liners. Browse our Perkins cylinder block range to find additional components, replacement main bearings, piston sets, and complete overhaul gasket sets for different tractor platforms [3].
| Engine Model | Primary Part Number | Cross Ref Part Numbers | Compatible Machine Model |
|---|---|---|---|
| AD3.152 | ZZ90082 | 31358345, U5MK0067 | Massey Ferguson MF240 |
| AD3.152 | ZZ90082 | 31358345 | Massey Ferguson MF135 |
| 4.236 | ZZ50223 | 31358345, 4236 | Massey Ferguson MF165 |
| 4.248 | ZZ50266 | U5MK0266, 4248 | Massey Ferguson MF290 |
| 1004-4 | ZZ50315 | U5MK0653, 1004 | JCB 3CX Backhoe |
| T3.1524 Turbo | ZZ90153 | T31524 | Massey Ferguson MF260 |
| 4.41 | ZZ51187 | 441 | Massey Ferguson MF390 |
This ZZ51187 Perkins 4.41 cylinder block is a direct-fit component calibrated for various high-torque agricultural tractors, materials handlers, and industrial power units:
| Make | Machine Model | Year Range | Engine Model | Application |
|---|---|---|---|---|
| Massey Ferguson | MF390, MF390T, MF393, MF398, MF399 | 1987–1997 | Perkins 4.41 (Massey Ferguson 390 block) | Heavy Agricultural Tractor Power |
| Landini | Vision 8500, 8860 Tractors | 1989–1999 | Perkins 4.41 (Landini 8500 block) | Agricultural Field Operations |
| JCB | 4.41-Spec rough-terrain Forklifts | 1990–2002 | Perkins 4.41 Engine Platform | Industrial Material Handling Logistics |
| Perkins | 4.41 Stationary Power Units | 1988–1998 | 4.41 naturally aspirated engine | Stationary Pumping & Irrigation |
As a premier industrial diesel engine block manufacturer and direct alternative to a regional UK Perkins parts supplier, we provide micro-balanced block castings designed to maximize field uptime and tractor parts durability:
In high-hour Perkins 4.41 engines utilizing a dry liner architecture, micro-vibrations from piston travel cause sliding friction between the outer liner wall and the parent bore seat, resulting in liner seat fretting. This wear causes the liners to settle, leading to compression loss, combustion bypass, and eventual block degradation. Our aftermarket blocks are cast from premium alloyed grey cast iron with high Brinell hardness (HB 187-241) and precise bore machining. This increased material density minimizes micro-movement, eliminating fretting and maintaining perfect liner seating throughout demanding harvesting seasons.
Internal casting flaws, such as microscopic porosity or sand holes in the jacket walls, can cause catastrophic engine failure. Under heavy loads, these tiny voids can rupture, allowing engine oil and coolant to mix, which ruins bearing lubrication. To guarantee structural integrity, our cylinder blocks undergo 100% casting density testing. We pressurize every block with air up to 40 PSI while submerged in water. This rigorous inspection ensures a completely leak-proof block, protecting your agricultural investment during continuous harvest operations.
Yes, the ZZ51187 and 3135X042 cross reference blocks are directly interchangeable. They represent the same 4-cylinder dry-liner casting platform for the Perkins 4.41 engine family. This block is configured for a modern lip seal spec crankshaft, eliminating older rope-seal setups. It shares the identical timing case bolt pattern, oil cooler ports, and cylinder deck heights, enabling a seamless direct swap across Massey Ferguson 390 and Landini 8500 tractor lines.
Under heavy load, high combustion forces can cause the main bearing cap bolts to stretch, leading to main cap walk and bore distortion. This misalignment binds the crankshaft. Our block assemblies feature high-tensile main cap bolts and are manufactured using CNC line-bored precision machining. The caps are torqued in place during the boring process to ensure absolute parent bore concentricity, reducing rotational resistance and preventing main bearing failure.
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