CAT 6V9027 SEAL-O-RIN for 345C Caterpillar Part - WSTPARTS

WSTPARTS supplies the 6V9027 SEAL-O-RIN, a CAT Drivetrain replacement part designed for Caterpillar 345C, C18 and 3516B applications. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch. Manual reference: 3126B: BASIC ENGINE, group 120-6661, page 240; 345B: COOLING SYSTEM, group 117-2789, page 97.

6V9027 SEAL-O-RIN for Caterpillar 345C — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement SEAL-O-RIN (Part # 6V9027). Designed for CAT 345C, C18, 3516B, 3516C, 3126B, 345B, 3508C, 3512, 3512C, 3516, 365B, C13, C32, G3508, 345D equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 345C, C18, 3516B, 3516C, 3126B, 345B, 3508C, 3512, 3512C, 3516, 365B, C13, C32, G3508, 345D
• ✔ 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)	6V9027
Product Name	SEAL-O-RIN
Brand	CAT
Applicable Models	345C, C18, 3516B, 3516C, 3126B, 345B, 3508C, 3512, 3512C, 3516, 365B, C13, C32, G3508, 345D
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 6V9027 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	BASIC ENGINE	120-6661	p.240
345B	COOLING SYSTEM	117-2789	p.97
3508C	COOLING SYSTEM	107-0476	p.178
3512	COOLING SYSTEM	134-3533	p.435
3512C	COOLING SYSTEM	261-7305	p.163
3516	COOLING SYSTEM	248-5513	p.236
3516B	COOLING SYSTEM	274-9356	p.213
3516C	COOLING SYSTEM	248-5513	p.191

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.

System Notes — COOLING SYSTEM

The cooling system covers the radiator, water pump, thermostat, fan and fan drive, coolant hoses, clamps, the surge tank and the belts that drive it. It holds engine temperature inside the range where clearances and oil film stay correct. Failures are usually slow and then sudden: a hose softens and balloons before it bursts, a water pump seal starts weeping from the weep hole, a thermostat sticks partly open so the engine runs cold and burns more fuel. On construction sites the radiator also packs with dust and debris, which raises pressure across the core and finds the weakest hose or clamp first.

FAQ

Is 6V9027 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 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