Front and Rear Crankshaft Seal Remover & Installer Tool Set - Durable

In this review of the Front and Rear Crankshaft Seal Remover & Installer Tool Set, the bottom line is simple: this set is for technicians and DIY mechanics who service Cummins and Paccar PX-6 engines and need a heavy duty, precision tool to install seals and wear sleeves without damage. The kit covers a broad range of engines from 1989-2016 and replaces several OEM part numbers, making it a practical single purchase for anyone working on 3.9L, 5.9L and 6.7L Cummins engines. The reviewer found the set to be robust and accurate for most installations, though tolerance variation on some seals can affect results.

Key Features

• Wide Compatibility: Works with Paccar PX-6 and Cummins 4BT, B Series, ISB, ISL and QSB engines from 1989 to 2016, reducing the need for multiple specialty tools.
• OEM Replacement: Directly replaces many common part numbers so users can match the tool to the original components for consistent installation depth.
• Premium Construction: CNC machined heavy duty steel with black anodized finish provides strength, corrosion resistance and long service life under workshop conditions.
• Seal and Sleeve Friendly: Designed to install front and rear crankshaft seals and wear sleeves without damaging sealing lips, helping maintain long term seal integrity.
• Time Saving Design: The tool set reduces trial-and-error installation and can save labor time when replacing seals or sleeves on multiple engines.

Who It's For

The tool set is aimed at professional diesel mechanics, fleet maintenance shops and experienced DIYers who regularly work on Cummins 3.9L, 5.9L and 6.7L engines or Paccar PX-6 units and want a reliable installer/remover that matches OEM dimensions. It is especially useful where several engine families are serviced and having one multi-fit set is more efficient than sourcing many single-fit tools.

It is less suitable for occasional hobbyists who only change a single seal once in a long while, or for users who need a specialist tool for an uncommon seal with outsized tolerance variance; some customers reported mixed results when seal tolerances were unusually loose.

Pros & Cons

Pros

• Sturdy CNC machined steel construction that resists corrosion and deformation under heavy use.
• Broad compatibility across Cummins and Paccar engine families reduces tool inventory.
• Designed to install seals and wear sleeves without damaging sealing surfaces, preserving seal life.

Cons

• Some users reported mixed seal integrity when working with seals that have very loose manufacturing tolerances, which can prevent a perfect install.

Specifications

Brand	E-cowlboy
Fitment	Paccar PX-6; Cummins 4BT 3.9L, B Series 5.9L, ISB/ISL 5.9L/6.7L, QSB 5.9L/6.7L (1989-2016)
Replaces Part Numbers	3824078, 5395259, 3163734, 3163628, 2063800090, ST-224C, 3824498, 3824500, 3164660
Works On	Seals and wear sleeves such as 3937111, 3904353, 3802820, 3934486, 5259499
Material	CNC machined heavy duty steel, black anodized
Warranty	30-day return; 12-month warranty

Our Verdict

The tool set offers good value for professionals and frequent DIYers who need a durable, OEM-dimensioned installer and remover for Cummins and Paccar crankshaft seals and wear sleeves. Its premium construction and wide compatibility make it a practical shop tool, though users should be aware that unusually loose seal tolerances may require extra care or seal replacement to achieve a perfect install.

Frequently Asked Questions

Will this set fit my 2006 Cummins 5.9L?
Yes, the set is listed to fit Cummins B Series 5.9L engines including model years within the 1989-2016 range.

Can it remove and install wear sleeves?
It installs front and rear crankshaft seals and wear sleeves and removes rear crankshaft seals, but it does not provide a separate dedicated extractor for certain wear sleeve types.

What if a seal is loose and will not seat?
Some customers reported issues with very loose seal tolerances; if a seal will not seat, verify seal dimensions and consider replacing the seal or using a matched sleeve to ensure correct fit.