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SKU:
ZZ3F10427
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6X Fuel Injector Sleeve Cup Set 21515329 21401136 for MACK MP10 MP7 MP8
$131.79
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$131.79
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$131.79
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Compatible equipment / model
Fuel Injector Sleeve Cup Set for MACK
This 6-piece fuel injector sleeve cup set, referencing OEM numbers 21515329 and 21401136, is designed for MACK MP10, MP7, and MP8 engines to seal and protect injectors from coolant and combustion leaks.
Overview
This fuel injector sleeve cup set for MACK MP10, MP7, and MP8 engines provides six precision-machined cups that create a secure seal between the injector and cylinder head. These sleeves prevent coolant intrusion and maintain proper compression, ensuring reliable engine performance and reducing the risk of injector failure.
Built For Performance
- Set of six sleeves covers a complete engine, simplifying replacement
- Machined from high-grade steel for resistance to heat and pressure
- Precisely toleranced to match OEM fitment for MACK engines
- Includes sealing surfaces designed to prevent coolant and gas leaks
- Direct replacement for OEM part numbers 21515329 and 21401136
Fits These Machines
- for MACK MP10
- for MACK MP7
- for MACK MP8
On-The-Job Use
- Used during injector replacement or cylinder head rebuilds on heavy-duty trucks
- Essential for long-haul and vocational applications where engine reliability is critical
- Ideal for maintenance in fleet shops and repair facilities
Specs At A Glance
| Part Number(s) | 21515329, 21401136 |
| Quantity | 6 |
| Type | Fuel Injector Sleeve Cup |
| Engine Fitment | MACK MP10, MP7, MP8 |
Good To Know
Q: Can these sleeves be installed without special tools? A: While basic hand tools are often sufficient, proper installation requires careful cleaning and sometimes a press to seat the sleeves correctly, so follow standard service procedures.
Q: Are these sleeves compatible with remanufactured injectors? A: Yes, they are designed to work with standard injectors used in MACK MP engines, but verify your injector type and engine serial before fitting.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.