Description
Product Overview
The BESTOOL Cylinder Liner Puller is a professional‑grade tool designed for the removal of wet cylinder liners on heavy‑duty diesel engines. Crafted from high‑strength carbon steel and finished with a slick black anti‑corrosion coating, the puller resists impact, wear, and rust even in harsh shop environments. It accommodates liner diameters from 3‑7/8″ to 6‑1/4″ and sleeve depths up to 15″, with a minimum wall thickness of 0.273″. The spring‑loaded feet automatically adjust to the liner, ensuring even pressure and preventing damage during extraction. Dimensions: 17.4 x 12.7 x 4.8 inches; Weight: 34.1 lb.
Usage
This puller excels in automotive repair shops, fleet maintenance facilities, and on‑site engine rebuilds. It is ideal for technicians working on Mack, Cummins, Volvo, Detroit, and a broad range of Caterpillar engine series including 3176, 3196, 3300, 3400, 3500, C10‑C16, MaxxForce DT, DT360, DTA360, DTA466, and DT530. Whether you are replacing worn liners, performing engine overhauls, or conducting routine inspections, the tool’s universal design simplifies the process, reduces labor time, and minimizes the risk of liner distortion.

Why Choose Us
BESTOOL combines decades of garage‑tool expertise with rigorous quality control. Each puller undergoes heat treatment and precision machining to meet OEM tolerances, delivering performance that often exceeds the original part numbers PT‑6400‑C, 3376015, and M50010‑B. The black coating not only provides a professional appearance but also protects against moisture and chemicals common in engine bays. Our tool is backed by a responsive customer service team and a satisfaction guarantee, ensuring you receive reliable support throughout the product’s life.
Key Features
- Universal fit for wet liners 3‑7/8″–6‑1/4″ diameter and up to 15″ depth
- Premium carbon steel construction with anti‑corrosion black coating
- Spring‑loaded feet auto‑adjust for secure, even pressure
- Direct OEM replacement, compatible with PT‑6400‑C, 3376015, M50010‑B
- Reduces downtime, speeds up liner removal for faster engine rebuilds
FAQ
What engine models are compatible with this puller?
The puller works with Mack, Cummins, Volvo, Detroit and most Caterpillar engines, including series 3176, 3196, 3300, 3400, 3500, C10‑C16, MaxxForce DT, DT360, DTA360, DTA466, and DT530.
Can this tool remove both wet and dry liners?
It is specifically engineered for wet liners, providing optimal grip and protection. While it may engage dry liners, performance is guaranteed only for wet‑type applications.
How do I maintain the puller to ensure longevity?
After use, wipe the tool clean, apply a light coat of rust‑inhibiting oil to the steel surfaces, and store it in a dry environment. The black coating already offers substantial corrosion resistance.
Is any special training required to operate the puller?
No special training is needed. Follow the included instructions: position the puller, engage the spring‑loaded feet, and turn the central screw to extract the liner. Safety glasses and gloves are recommended.
What is the warranty period for this product?
BESTOOL provides a one‑year limited warranty covering manufacturing defects. Contact our support team with proof of purchase for assistance.




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