Perkins 4.41 Cylinder Block Assembly ZZ51187 combats the core plug corrosion and liner seat fretting often grounding MF 390 Tractor Block operations, providing a precision–machined Engine Case Replacement that restores factory–grade engine compression and long–term reliability
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Ready for immediate wholesale dispatch, our Perkins 4.41 Cylinder Block Assembly (ZZ51187) provides a high-performance foundation for late-model Massey Ferguson 390 series engines. Known in regional markets as a reliable MF 390 Tractor Block, this assembly serves as an essential Engine Case Replacement for agricultural fleets facing catastrophic block failure. As a critical component in our Industrial Diesel Engine Parts catalog, each unit is manufactured to exacting 4.41 specifications, ensuring that professional mechanics can perform a seamless overhaul that restores original factory power curves.
Late-model Perkins engines often face specific metallurgical challenges after thousands of operation hours. This replacement block addresses common technical failures such as Core Plug Corrosion and Liner Seat Fretting, which can lead to coolant mixing and pressure loss. By utilizing high-density iron alloys, our Perkins 4.41 Spares provide enhanced structural rigidity. Ruich Value maintains high inventory levels to support the urgent maintenance needs of high-output agricultural and material handling equipment worldwide.
| Engine Model | Perkins 4.41 (4 Cylinder Natural Aspiration) |
| OEM Reference | ZZ51187 |
| Cylinder Type | Dry Liner Architecture |
| Cross Reference / OEM Numbers |
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| Application Category | Industrial Diesel Engine Parts |
Pro Tip: On the Perkins 4.41 series, Main Cap Bolt Stretch is a frequent issue when reusing old hardware during a block swap. We highly recommend installing new main bearing bolts with this ZZ51187 block to ensure correct torque retention. Additionally, inspect the block’s core plugs during every major service, as Core Plug Corrosion is the primary cause of localized overheating in agricultural applications.
| Machine Type | Brand | Equipment Models |
|---|---|---|
| Agricultural Tractor | Massey Ferguson |
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| Industrial Equipment | Landini / JCB |
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Our catalog features a wide array of Industrial Diesel Engine Parts designed for the global Perkins service market. From the legacy 4.236 to the modern 4.41 and 1100 series, we provide the foundation for professional engine restoration.
Category coverage: Bare castings, loaded block assemblies (ZZ-spec), and short engine units for agricultural and industrial fleets.
| 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 |
View all specs in our Perkins Industrial Cylinder Block Catalog.
The 4.41 is a longer-stroke development of the 4.236. While they share the same bore, the internal clearance for the crankshaft throw is different. Ruich Value supplies the specific ZZ51187 casting to ensure correct internal geometry for the 4.41 crank.
Yes, all our Perkins 4.41 assemblies are supplied with pre-installed and precision-machined camshaft bushes and cylinder liners, ready for your rotating assembly.
This is often caused by high-vibration agricultural work on dry-liner engines. Our blocks utilize an improved material density on the liner shoulder support area to resist this movement and ensure a permanent seal.
Note: For rare or obsolete engine series, we offer customized casting and tooling development based on your original samples or technical drawings. This is ideal for large-scale restoration projects of out-of-production engine models.
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