CAT 6V8397 SEAL for 345C Caterpillar Part - WSTPARTS

The 6V8397 SEAL is a genuine and high-quality OEM replacement part compatible with Caterpillar 345C, C18 and 3516B equipment. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch. Manual reference: 3126B: LUBRICATION SYSTEM, group 126-5464, page 358; 325C: BASIC ENGINE, group 237-5182, page 33.

6V8397 SEAL for Caterpillar 345C — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SEAL (Part # 6V8397). Designed for CAT 345C, C18, 3516B, 336D, 3516C, 3126B, 325C, 325D, 330C, 330D, 345B, 3508C, 3512C, 3606, 3608, 3616, 365B, C13, C7, C9, 320C, 320D, 345D equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 345C, C18, 3516B, 336D, 3516C, 3126B, 325C, 325D, 330C, 330D, 345B, 3508C, 3512C, 3606, 3608, 3616, 365B, C13, C7, C9, 320C, 320D, 345D
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	6V8397
Product Name	SEAL
Brand	CAT
Applicable Models	345C, C18, 3516B, 336D, 3516C, 3126B, 325C, 325D, 330C, 330D, 345B, 3508C, 3512C, 3606, 3608, 3616, 365B, C13, C7, C9, 320C, 320D, 345D
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 6V8397 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
3126B	LUBRICATION SYSTEM	126-5464	p.358
325C	BASIC ENGINE	237-5182	p.33
325D	LUBRICATION SYSTEM	159-0285	p.68
330C	FUEL SYSTEM	237-4839	p.152
330D	FUEL SYSTEM	231-3039	p.115
336D	FUEL SYSTEM	231-3039	p.124
3406C	LUBRICATION SYSTEM	267-5201	p.403
345B	HYDRAULIC SYSTEM	128-7455	p.536

System Notes — LUBRICATION SYSTEM

The lubrication system covers the oil pump, oil cooler, oil filter base, relief valves, dipstick tube, pan and the galleries that distribute oil to every bearing in the engine. It is the system that keeps metal off metal. Failures tend to be either pressure loss — a worn pump, a stuck relief valve, a collapsed filter — or contamination, where sludge and debris circulate and score bearing surfaces. Oil pressure that reads low at idle, a filter that comes out heavy, or oil that turns dark far sooner than usual are the signals. Parts in this group are replaced on measured oil pressure and lab results rather than on interval alone.

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 6V8397 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 345C.

Genuine vs OEM replacement — what is the difference?
Genuine CAT parts carry an anti-counterfeit label. OEM equivalents are built to the same specifications, bench-tested and supplied with full warranty at a better price.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a 12-month warranty.

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