Cummins NT N-14 Liner Puller/Press Combo ONLY 5.5" Bore ONLY
The M20105 Liner Puller & Press Combo is a heavy-duty, dual-function service tool engineered for both removal and installation of cylinder liners in Cummins NT and N14 diesel engines. This integrated system allows technicians to perform complete liner service using a single tool, improving efficiency while maintaining precise control throughout the rebuild process.
Cummins NT and N14 platforms utilize wet cylinder liners that require strict control over:
- Liner protrusion height
- Block bore alignment and squareness
- O-ring sealing integrity
The M20105 incorporates a mechanical pulling system for safe liner extraction and converts into a press-style installation tool for controlled liner seating.
During removal, the puller applies even, centered force to extract the liner without damaging the cylinder block or scoring the bore—especially important when dealing with seized or corrosion-bound liners.
For installation, the tool transitions into a press configuration, applying smooth, axial force to seat the liner evenly into the block. This ensures:
- Proper liner depth and seating
- Consistent protrusion height across all cylinders
- Protection of O-rings during installation
Unlike impact-based methods, the M20105 provides a controlled, repeatable process, eliminating inconsistencies and reducing the risk of costly rebuild errors.
Manufactured from high-strength steel, the tool is built for repeated high-load use in professional diesel environments and is ideal for both in-frame and out-of-frame rebuilds.
Key Features & Benefits
- Dual-Function Design: Performs both liner removal and installation
- Designed for Cummins NT & N14 Engines: Application-specific fit
- Controlled Pulling System: Safely removes liners without block damage
- Press-Type Installation: Ensures even seating and proper alignment
- Protects O-Rings & Sealing Surfaces: Prevents installation damage
- Ensures Proper Liner Protrusion: Critical for head gasket sealing
- Heavy-Duty Construction: Built for repeated professional use
- Improves Workflow Efficiency: Reduces need for multiple tools
Typical Applications
- Cylinder liner removal and installation
- Cummins NT / N14 engine rebuilds
- In-frame overhaul procedures
- Engine block reconditioning
- Heavy-duty truck, industrial, and marine diesel service
Why It Matters
Cylinder liner service is one of the most precision-critical operations in diesel engine rebuilding. Errors during removal or installation can lead to:
- Block damage
- Coolant leaks
- Incorrect liner protrusion
- Head gasket failure
The M20105 provides a complete, controlled liner service solution, ensuring liners are removed and installed correctly without damaging critical components.
For technicians, this means:
- Faster, more efficient rebuilds
- Reduced risk of costly mistakes
- Consistent, high-quality results