CAT 1090076 SEAL O RIN for C15 Caterpillar Part - WSTPARTS
Need a dependable Drivetrain part for your Caterpillar C15, 3412C and C27 machine? The 1090076 SEAL O RIN from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch. Manual reference: 3406C: COOLING SYSTEM, group 109-0076, page 517; 3406E: LUBRICATION SYSTEM, group 126-6886, page 203.
1090076 SEAL O RIN for Caterpillar C15 — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement SEAL O RIN (Part # 1090076). Designed for CAT C15, 3412C, C27, 3406C, 3406E, C32 equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT C15, 3412C, C27, 3406C, 3406E, C32
- ✔ 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) | 1090076 |
| Product Name | SEAL O RIN |
| Brand | CAT |
| Applicable Models | C15, 3412C, C27, 3406C, 3406E, C32 |
| Weight | 0.05 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 1090076 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 |
| 3406C | COOLING SYSTEM | 109-0076 | p.517 |
| 3406E | LUBRICATION SYSTEM | 126-6886 | p.203 |
| C15 | BASIC ENGINE | 175-3860 | p.412 |
| C27 | LUBRICATION SYSTEM | 349-5622 | p.106 |
| C32 | COOLING SYSTEM | 354-2619 | p.185 |
| 3306 | COOLING SYSTEM | 223-2484 | p.359 |
| 3412C | COOLING SYSTEM | 166-0859 | p.265 |
| 3406C | COOLING SYSTEM | 109-0076 | p.525 |
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.
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.
FAQ
Is 1090076 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 C15.
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
