CAT 2681839 Injector Nozzle for 325D Caterpillar Part - WSTPARTS
WSTPARTS supplies the 2681839 Injector Nozzle, a CAT Injector replacement part designed for Caterpillar 325D applications. It is categorized under Injector. Every unit is fitment-verified before dispatch. Manual reference: C7: ENGINE ARRANGEMENT, group 266-6731, page 106; C7: ENGINE ARRANGEMENT, group 266-6732, page 107.
2681839 Injector Nozzle for Caterpillar 325D — Genuine CAT & Replacement Part
WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement Injector Nozzle (Part # 2681839). Designed for CAT 325D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 325D
- ✔ 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) | 2681839 |
| Product Name | Injector Nozzle |
| Brand | CAT |
| Applicable Models | 325D |
| Weight | 1.3 kg |
| Condition | New (Genuine CAT / OEM-equivalent direct replacement) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 2681839 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 |
| 325D | ENGINE ARRANGEMENT | — | p.22 |
| C7 | ENGINE ARRANGEMENT | 266-6731 | p.106 |
| C7 | ENGINE ARRANGEMENT | 266-6732 | p.107 |
| C7 | ENGINE ARRANGEMENT | 266-6733 | p.108 |
| C7 | ENGINE ARRANGEMENT | 266-6734 | p.109 |
| C7 | ENGINE ARRANGEMENT | 270-7235 | p.110 |
| C7 | ENGINE ARRANGEMENT | 278-2277 | p.111 |
| C7 | ENGINE ARRANGEMENT | 321-5224 | p.113 |
System Notes — ENGINE ARRANGEMENT
The engine arrangement group covers the parts that mount and dress the engine as an assembly rather than the engine internals: engine mounts and isolators, belts and tensioners, pulleys, guards, brackets, and the plumbing that connects the engine to the rest of the machine. It is the interface layer, so its failures usually show up as vibration, belt squeal or a component that will not stay aligned. Worn isolators transmit vibration into the frame and fatigue nearby brackets; a tired tensioner lets the belt slip and takes the alternator or water pump with it. Parts are replaced when vibration at idle becomes noticeable or a belt starts tracking off its pulley.
FAQ
Is 2681839 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 325D.
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
