CAT 9X4576 SEAL O RIN for 365B Caterpillar Part - WSTPARTS

The 9X4576 SEAL O RIN is a genuine and high-quality OEM replacement part compatible with Caterpillar 365B, C9 and C13 equipment. It is categorized under Seal. Every unit is fitment-verified before dispatch. Manual reference: C13: BASIC ENGINE, group 219-7469, page 210; C9: BASIC ENGINE, group 215-1818, page 197.

9X4576 SEAL O RIN for Caterpillar 365B — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement SEAL O RIN (Part # 9X4576). Designed for CAT 365B, C9, C13 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 365B, C9, C13
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	9X4576
Product Name	SEAL O RIN
Brand	CAT
Applicable Models	365B, C9, C13
Weight	0.05 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 9X4576 in the Caterpillar parts manual: the machine it is published under, the system it belongs to, the group number and the manual page. Use it to confirm the part against your own parts book before ordering.

Machine	System	Group No.	Manual Page
C13	BASIC ENGINE	219-7469	p.210
C9	BASIC ENGINE	215-1818	p.197
365B	BASIC ENGINE	142-1992	p.43
C13	BASIC ENGINE	225-9556	p.213
C13	BASIC ENGINE	225-9556	p.217
C13	BASIC ENGINE	271-7415	p.221

System Notes — BASIC ENGINE

The basic engine group covers the core structure and internals: cylinder block, cylinder head, pistons, rings, liners, connecting rods, crankshaft, bearings, camshaft and the gasket sets that seal them. These parts determine compression, oil pressure and power output. They wear gradually — rings lose tension, bearings show copper, liners glaze — and the first signs are usually blow-by from the breather, rising oil consumption, or a knock that gets louder as the engine warms. Replacing a basic engine part is a planned overhaul decision rather than a roadside fix, so matching the exact part number and serial number range matters more here than anywhere else on the machine.

FAQ

Is 9X4576 the right part for my machine?
Match the part number on your old part, or send us your equipment serial number — WSTPARTS verifies fitment free of charge for CAT 365B.

Genuine CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.

📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com