Crankshaft Seal Remover & Installer Tool Kit FIT 1989–2016 Cummins 4BT 3.9L, 5.9L, 6.7L, PX-6, ISC, ISL, QSB – Replace 3824078, 3904353, 3937111, 3925529

This Front & Rear Crankshaft Seal Remover and Installer Tool Kit is specifically engineered to fit Cummins B Series diesel engines from 1989 to 2016, including 4BT 3.9L, ISB 5.9L / 6.7L, ISL, ISC 8.3L, QSB 5.9L / 6.7L, and Paccar PX-6 platforms. Compatible with: – FIT 1989–2016 Cummins 4BT 3.9L – FIT Cummins ISB 5.9L / 6.7L – FIT Cummins ISL 8.3L / QSB 5.9L / QSB 6.7L – FIT Cummins ISC 8.3L / Paccar PX-6 Engines Works on OE seals and wear sleeves including: 3937111, 3904353, 3802820, 3934486, 5259499, 3926126, 3925529, 4890833 Replaces tool part numbers: 3824078, 5395259, 3163734, 3163628, 2063800090, 3163741, ST-224C, 3824498, 5041, 3824500, 5046, 3164660 Function: – Allows correct installation of front and rear crankshaft seals – Prevents seal lip distortion and crank damage – Includes rear seal removal adapter Material: Heat-treated steel with anti-rust coating Application: For both field repair and shop engine rebuilds Installation: Aligns seal depth and protects sealing edges during install Tool Kit Includes: – Installer sleeves – Pilot adapters – Seal drivers and bolts – Removal tools for rear seal Ideal for Cummins repair technicians, fleet mechanics, and engine service shops needing precision crankshaft seal service tools.

• 【Vehicle Fitment】 FIT Cummins 4BT 3.9L (1989–2016), ISB 5.9L / 6.7L, ISL 8.3L, QSB 5.9L / 6.7L, ISC 8.3L, and Paccar PX-6 diesel engines. Covers a wide range of B series and QSB applications in trucks, buses, RVs, and off-highway equipment.
• 【Seal & Sleeve Coverage】 Works with OE crankshaft seals and wear sleeves including 3937111, 3904353, 3802820, 3934486, 5259499, 3926126, 3925529, 4890833. Supports both front and rear crankshaft positions with wear sleeve installation.
• 【Function & Use】 Designed to install seals and sleeves precisely without damaging sealing lips or causing misalignment. Includes removal tool for rear main seal. Ensures correct press depth and concentric seal-to-crankshaft seating.
• 【OE Replacement Reference】 Replaces tool numbers: 3824078, 5395259, 3163734, 3163628, 2063800090, 3163741, ST-224C, 3824498, 5041, 3824500, 5046, 3164660. Matches OEM tool specs for shop-level performance and repeatable results.
• 【Durability & Convenience】 Made from hardened steel with black oxide finish to resist corrosion and deformation. Comes with custom carry case. Ideal for fleet maintenance, diesel engine rebuilders, and Cummins service professionals.