CAT 3P0655 SEAL-O-RIN for C18 Caterpillar Part - WSTPARTS

3P0655 SEAL-O-RIN is a Drivetrain component engineered for Caterpillar C18, 3516B and 3512 machines, built to match original factory specifications. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch, backed by factory-direct pricing and warranty coverage, and currently in stock for dispatch within 24 hours. Manual reference: 3508C: LUBRICATION SYSTEM, group 245-3678, page 160; 3512: LUBRICATION SYSTEM, group 148-8007, page 329.

3P0655 SEAL-O-RIN for Caterpillar C18 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SEAL-O-RIN (Part # 3P0655). Designed for CAT C18, 3516B, 3512, 3516C, 3512C, 3516, 3606, 3608, 3616, G3508, G3608, G3612, G3616 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 3516B, 3512, 3516C, 3512C, 3516, 3606, 3608, 3616, G3508, G3608, G3612, G3616
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
• ✔ In stock, ready to ship

Specifications

Part Number (MPN)	3P0655
Product Name	SEAL-O-RIN
Brand	CAT
Applicable Models	C18, 3516B, 3512, 3516C, 3512C, 3516, 3606, 3608, 3616, G3508, G3608, G3612, G3616
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 3P0655 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
3508C	LUBRICATION SYSTEM	245-3678	p.160
3512	LUBRICATION SYSTEM	148-8007	p.329
3512C	LUBRICATION SYSTEM	261-7305	p.148
3516	LUBRICATION SYSTEM	115-7860	p.192
3516B	LUBRICATION SYSTEM	115-7860	p.155
3516C	LUBRICATION SYSTEM	312-6298	p.160
C18	COOLING SYSTEM	240-9044	p.442
G3508	LUBRICATION SYSTEM	134-3749	p.173

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 — 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 3P0655 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 C18.

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?
In stock — ships within 24 hours. Every order is covered by a 12-month warranty.

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