CAT 2112134 RETAINER-S for 330C Caterpillar Part - WSTPARTS
WSTPARTS supplies the 2112134 RETAINER-S, a CAT Seal replacement part designed for Caterpillar 330C, 330D and 336D applications. It is categorized under Seal. Every unit is fitment-verified before dispatch. Manual reference: 330D: BASIC ENGINE, group 252-8439, page 33; C9: BASIC ENGINE, group 386-0460, page 41.
2112134 RETAINER-S for Caterpillar 330C — Genuine & OEM Replacement Part
WSTPARTS supplies genuine and high-quality OEM replacement RETAINER-S (Part # 2112134). Designed for CAT 330C, 330D, 336D, C9 equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 330C, 330D, 336D, C9
- ✔ 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) | 2112134 |
| Product Name | RETAINER-S |
| Brand | CAT |
| Applicable Models | 330C, 330D, 336D, C9 |
| Weight | 0.05 kg |
| Condition | New (Genuine / OEM Equivalent) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 2112134 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 |
| 330D | BASIC ENGINE | 252-8439 | p.33 |
| 336D | BASIC ENGINE | 252-8439 | p.51 |
| C9 | BASIC ENGINE | 386-0460 | p.41 |
| 330C | BASIC ENGINE | 210-5984 | p.57 |
| 330D | BASIC ENGINE | 252-8439 | p.34 |
| C9 | BASIC ENGINE | 242-0672 | p.136 |
| C9 | BASIC ENGINE | 214-1980 | p.47 |
| C9 | BASIC ENGINE | 214-1980 | p.49 |
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 — SERVICE EQUIPMENT AND SUPPLIES
This group covers the equipment and consumables used to service the machine rather than to run it: filter wrenches and service tools, drain and fill hardware, grease fittings and couplers, sight gauges, sampling valves, and the small hardware that makes routine maintenance possible without improvising. Items here are replaced when they no longer seal, no longer hold a setting, or when a stripped fitting turns a ten-minute service job into a two-hour one. Keeping the correct part number on hand matters more than the unit price, because a missing grease coupler usually means a missed lube point.
FAQ
Is 2112134 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 330C.
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
