VEVOR Universal Cylinder Liner Puller Assembly — 3-7/8" to 6-1/4" Bore, Heavy-Duty Wet-Liner Extraction, Replaces PT-6400-C

VEVOR's Universal Cylinder Liner Puller Assembly is a heavy-duty wet-liner extraction tool designed to remove cylinder liners from 3-7/8" to 6-1/4" bores safely and reliably.

This liner puller is engineered for professional diesel engine work where wet liners must be removed from deep bores in heavy-duty engines. It replaces common OEM items like PT-6400-C, M50010-B, and 3376015 and works with a broad range of engines from Mack, Cummins and Cat to Volvo, Detroit, and International. Built from high-grade steel and featuring adaptable support legs and adjustable pins, the tool helps technicians extract liners without improvisation or unsafe makeshift tooling.

How does this tool fit different liner diameters and depths?

The VEVOR puller covers liner diameters from 3-7/8 inches up to 6-1/4 inches and can reach liners up to 15 inches deep. Two spring-loaded support legs conform to the liner wall thickness and secure the grip, while two adjustable depth pins let you engage liners set at different depths.

• Diameter range: 3-7/8" to 6-1/4"
• Maximum reach: 15 inches deep
• Minimum wall thickness: 0.148 inches
• Spring-loaded legs for automatic adjustment

Which engines and OEM parts is this compatible with?

This universal liner puller is made to work across a wide roster of diesel engines including multiple Cat models, Mack, Cummins, Volvo, Detroit, and International. It serves as a direct replacement for legacy tools and OEM part numbers, simplifying parts procurement for shops and fleet maintenance teams.

• Compatible models: Cat 3176, 3196, 3300, 4300, 3500 series and C10–C16
• Also fits: Mack, Cummins, Volvo, Detroit, International engines
• OEM replacements: PT-6400-C, M50010-B, 3376015

What features improve extraction reliability and longevity?

VEVOR designed this puller with durable steel construction and practical components that reduce common failure points. The adjustable pins and spring-loaded legs allow secure engagement without excessive force, and the main screw should be lubricated for smoother operation and to prolong tool life.

• Premium steel construction for high-strength use
• Two adjustable defent pins for variable depths
• Spring-loaded support legs to maintain consistent grip
• Lubricate the screw before use for best performance

How do I use it safely during liner removal?

Set the puller inside the liner, expand the spring-loaded legs to seat against the liner wall, and adjust the depth pins to the necessary reach. Turn the main screw slowly (lubricated) to extract the liner while keeping the tool centered; monitor alignment to avoid bending the liner or the puller.

• Center tool before expanding legs
• Adjust pins to match liner depth
• Lubricate screw and operate slowly
• Keep extraction axial to avoid tool damage

Who this is for: This assembly is aimed at professional mechanics, diesel engine shops, heavy equipment technicians, and fleet maintenance crews who frequently service wet-liner engines. If you work on Mack, Cummins, Cat, Volvo, Detroit, or International engines and need a dependable replacement for PT-6400-C, M50010-B, or 3376015, this puller provides a workshop-grade alternative that reduces improvisation and downtime.