CAT 8T5379 BOLT for 345C Caterpillar Part - WSTPARTS
8T5379 BOLT is a Bolt/Nut component engineered for Caterpillar 345C, 365B and 330C machines, built to match original factory specifications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 330C: FRAME AND BODY, group 192-8302, page 430; 336D: UNDERCARRIAGE, group 240-3883, page 318.
8T5379 BOLT for Caterpillar 345C — Genuine CAT & Replacement Part
WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BOLT (Part # 8T5379). Designed for CAT 345C, 365B, 330C, 325D, 330D, 345D equipment.
Compatible Models
Key Features
- ✔ 100% compatible with CAT 345C, 365B, 330C, 325D, 330D, 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) | 8T5379 |
| Product Name | BOLT |
| Brand | CAT |
| Applicable Models | 345C, 365B, 330C, 325D, 330D, 345D |
| Weight | 0.32 kg |
| Condition | New (Genuine CAT / OEM-equivalent direct replacement) |
| Warranty | 12 Months |
Where This Part Fits
Every row below is a real listing of 8T5379 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 |
| 330C | FRAME AND BODY | 192-8302 | p.430 |
| 330D | FRAME AND BODY | 192-8302 | p.370 |
| 336D | UNDERCARRIAGE | 240-3883 | p.318 |
| 365B | IMPLEMENTS | 208-1921 | p.656 |
| 325D | IMPLEMENTS | 236-8416 | p.782 |
| 345C | IMPLEMENTS | 234-3929 | p.836 |
| 330C | FRAME AND BODY | 201-2773 | p.431 |
| 330D | FRAME AND BODY | 201-2772 | p.371 |
System Notes — FRAME AND BODY
The frame and body group covers the main frame, counterweight, fenders, steps, handrails, access doors, panels and the mounting hardware that ties them together. It carries every load the machine generates and every load the attachment imposes back into the structure. Cracks almost always start at a weld toe or a bolt hole where a mounting has worked loose, and a loose guard or step is both a structural and a safety issue. Parts in this group are replaced after impact damage, after crack repair, or when fasteners no longer hold torque because the hole has elongated.
System Notes — UNDERCARRIAGE
The undercarriage group covers tracks, shoes, links, bushings, rollers, idlers, sprockets, track tensioners and the recoil hardware. It carries the whole machine weight and transmits drive force to the ground, and it is normally the single largest wear cost on a tracked machine. Wear is a system: a worn sprocket accelerates chain wear, a loose track pounds the bushings, and a seized roller flat-spots the link it runs on. Parts here are replaced on measured wear — bushing diameter, shoe height, roller flange — and replacing one component out of phase with the rest usually shortens the life of both.
FAQ
Is 8T5379 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
