
2588568
2588597
3-65
Engine Tools
Crankshaft, Main Bearings and Flywheel
4C-6375 Locator
127-1591 Rear Oil Seal Installer
Model: 3046 Diesel Engine
Warranty: Six Months
4C-6375
• Used to install crankshaft rear seal (assures seal lip will bear uniformly around
crankshaft)
• Preventssealdamageduringinstallation
127-1591
• Reversible
• Used to install 103-2835 Rear Crankshaft Oil Seal Assembly and 117-5015 Oil Seal
Assembly (when installer bottoms against crankshaft, seal assembly, including
wearsleeve,isinstalledincorrectlocation)
• Used with 4C-6375 Locator, 9U-6172 Socket Head Screw (2), 8T-0375 Bolt, and
5P-8247 Washer
• Installerequallydistributesinstallationpressureonedgeofseal(preventsdam-
age to edge of seal assembly during assembly, resulting in longer seal life)
• Knurledoutsidediameterprovidesbettergripformechanicduringoilseal
installation
• To use: bolt locator onto crankshaft, put seal assembly in installer, push seal
onto crankshaft until installer bottoms out
Reference
SENR6458, Special Instruction, Disassembly and Assembly of 3046 Engine
Item Part Number Description Size Small Seal Diameter Large Seal Diameter
1 4C-6375 Locator -- -- --
2 127-1591 Rear Oil Seal
Installer
-- 96 mm (3.78 in) 98.06 mm (3.861 in)
3 9U-6172 Bolt M12 x 1.25 x 20 mm long (2) -- --
4 6V-3303 Bolt M16 x 2 x 60 mm long -- --
5 4B-5275 Washer 15.875 mm (0.625 in) -- --
Used With 127-1591:
1 4C-6375 Locator -- -- --
3 9U-6172 Bolt M12 x 1.25 x 20 mm long (2) -- --
Used With 127-1591 (not shown)
-- 8T-0375 Bolt -- -- --
-- 5P-8247 Hard Washer -- -- --
Seal Installer Tools
Model: 3046 Engine
Warranty: Six Months
• Used to install crankshafts front
sealwithoutremovingfrontcover
• Makes installation easier, faster,
andpreventsdamagetoseal
• Ensures uniform seal contact
around crankshaft — ultimately
provideslongerseallife
Reference
SENR6458, Special Instruction, Disas-
sembly and Assembly of 3046 Engine
Item Part Number Description
1 4C-6378 Seal Installer
Sleeve
2 4C-6376 Installer Stud
3 4C-6377 Installer Washer