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Servicing or replacing the front gear housing cover seal or rear main crankshaft oil seal on PACCAR MX, MX PMCI-2, MX-13 PCI, or MX-13 commercial diesel engines (2011 to 2016 model years)? Attempting to extract or press these large-diameter PTFE front and rear crankshaft seals using hammers, pry bars, brass drifts, or improvised puller plates causes catastrophic engine overhaul failures. Driving a PACCAR MX seal casing unevenly cocks the outer steel shell within the engine cover bore, permanently folding or tearing the delicate internal elastomeric PTFE sealing lip against the precision crankshaft flange. Furthermore, prying old seal casings loose with screwdrivers gouges the ground crankshaft seal journal and wear sleeve, leading to chronic oil weeping, oil-soaked clutch assemblies, contaminated dampener pulleys, and thousands of dollars in unscheduled repair stall rework. Engineered for commercial diesel rebuilders, Kenworth and Peterbilt service stalls, and fleet overhaul centers as a direct master substitute for PACCAR part number 1453185PE / 1453185, the ATC 1453185 Front & Rear Crankshaft Seal Installer & Remover Master Kit provides a 37.00-pound precision-machined steel alignment guide system, dual extraction collet fixtures, and positive-stop driver plates designed to extract and press both front and rear main seals dead-square, flush, and concentric to exact factory depth specs without crankshaft scoring or seal lip distortion.

The Critical Physics of Dual-Axis PTFE Seating & Positive Mechanical Depth Stops

Modern PACCAR MX series engines (including 2011-2016 MX, MX PMCI-2, and MX-13 PCI platforms) feature specialized polytetrafluoroethylene (PTFE) dry-lip seals on both the front timing cover and rear flywheel housing. Unlike conventional rubber garter-spring seals, PTFE seal lips require a perfectly square, 100% dry axial contact patch against the rotating crankshaft flange to form a microscopic oil barrier. If a front or rear seal casing is installed even 0.012 inches out of square, crankshaft rotation causes the seal lip to micro-wobble, wearing a severe groove into the wear sleeve and pumping pressurized oil past the sealing edge into the bellhousing or front accessory drive. The ATC 1453185 Master Kit completely eliminates dual-end installation and removal errors. By bolting directly to the front harmonic balancer threads or rear crankshaft flange bolt pattern, the precision guide plate creates an unyielding pilot shaft. The heavy 37-pound master tool set features dual-ended extraction collets to pull worn front and rear seals cleanly without contacting the shaft journal, alongside heavy driver press rings that advance new seals to positive physical stops—guaranteeing 100% concentric, leak-free alignment on both ends of the engine.

• Complete Front & Rear Dual-End Capability – Master tool kit handles complete extraction and installation of both front and rear crankshaft seals on PACCAR MX engines.
• Broad PACCAR MX Engine Coverage (2011–2016) – Engineered for 2011-2016 PACCAR MX, PACCAR MX PMCI-2, PACCAR MX-13 PCI, and PACCAR MX-13 platforms.
• Direct Kenworth & Peterbilt OEM Specialty Tool Interchange – Direct high-strength replacement for factory PACCAR part numbers **1453185** and **1453185PE** (ATC 1453185).
• Protects PTFE Sealing Lips & Wear Sleeves – Eliminates cocked casings, rolled lips, and crankshaft journal scoring during in-frame or out-of-frame service.
• Substantial 37.00 lbs Heavy-Duty Master Shop Build – Precision-machined from heat-treated structural alloy tool steel engineered for continuous daily use in high-volume commercial repair bays.

Stop Ruining PACCAR Crankshaft Seals. Command Total Front & Rear Overhaul Precision.

The ATC 1453185 Paccar MX13 Front & Rear Seal Installer/Remover – MX Series Engines is an essential capital asset for commercial truck repair centers, Kenworth and Peterbilt service stalls, fleet maintenance depots, and heavy engine rebuilders. Prevent front and rear main oil leaks, protect crankshaft journals, and service PACCAR MX series engines with complete mechanical authority using Apex tools.

Technical Specifications

Technical Metric	Value / Fitment Reference Guidelines
Target Engine Platforms	2011–2016 PACCAR MX, MX PMCI-2, MX-13 PCI, and MX-13 Engines
Primary Operational Functions	Dual-end removal and positive-stop press installation of front and rear crankshaft seals
Specialty Tool Cross Reference	Direct OEM replacement for PACCAR tool number 1453185 / 1453185PE (ATC 1453185)
Vehicle Application Fitment	Kenworth and Peterbilt Class 8 Commercial Trucks with PACCAR MX Engines
Part / Model Reference Number	ATC 1453185 (ATC1453185 / 1453185)
Construction Metallurgy	High-tensile precision-machined heat-treated structural alloy steel
Total Package Shipping Weight	37.00 lbs (Heavy-duty master shop service kit system)

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