What people love (and don’t love)
What people love
- Works great for front and rear crankshaft seal removal and installation.
- Good quality and durable toolset for Cummins engines.
- Supplied studs fit well for certain models like the 1995 12v Cummins crankshaft.
- Effective at installing seals and wear sleeves to the correct depth.
- Highly rated by the majority of users with positive feedback.
What people don’t love
- Supplied crankshaft mounting bolts have incorrect thread pitch.
- Using the incorrect bolts can cause damage to the crankshaft threads.
- Some users experienced misaligned or inconsistent holes in the puller tool.
- Requires providing your own hardware for safe and proper use.
Effective toolset but be cautious of supplied bolts to avoid crankshaft damage.
Summary based on customer review evidence.
Quick facts
- Brand: E-cowlboy
- Price: USD 127.99
- Rating: 4.20 (49 reviews)
If you’re replacing crankshaft seals on a compatible Cummins platform, this E-cowlboy Front + Rear Crankshaft Seal Remover & Installer set is built to help you do the job cleanly and confidently. It’s designed to install both front and rear crankshaft seals and wear sleeves without damaging the seal (which can help prevent leaks), and it also removes the rear crankshaft seal.
You can view the current price and full details on Amazon here.
This kit targets a broad range of engines—including Paccar PX-6 and several Cummins B/ISB/QSB applications—making it a practical choice for shops and DIYers who work on multiple model years. Components are CNC machined from heavy duty steel with a black anodized finish, and the parts are manufactured to OEM specifications and tested (per the manufacturer).
- Fits select 1989–2016 Cummins engines including 4BT 3.9L, B Series 5.9L, ISB 5.9L/6.7L, ISL 5.9L/6.7L, QSB 5.9L/6.7L, ISC 8.3L, and Paccar PX-6
- CNC machined heavy duty steel with black anodized finish for strength, durability, and corrosion resistance
- Designed to install front & rear crankshaft seals and wear sleeves without damaging the seal, and to remove the rear crankshaft seal
- Helps ensure correct installation depth of the crankshaft seal
- Direct replacement references include 3824078, 5395259, 3164660, ST-224C, 3824498/1338/5041, 3824500/5046, and 2063800090 (among others listed by the manufacturer)
What to double-check before buying: confirm your exact engine model/year and the seal or wear sleeve part numbers you’re servicing (examples listed by the maker include 3937111, 3904353, 3802820, 3934486, 5259499, 3926126, 3925529, and 4890833). This ensures the tool geometry matches your application.
Coverage: the manufacturer states a 30-day return window and a 12-month warranty.
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