Cummins External Retaining Ring, PAI 042058 (OEM 3594521), Pack of 5
Used In These Kits
This part is included in 1 engine & overhaul kits — find yours below.
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| Engine family | Cummins ISM / M11 / QSM |
| Brand | PAI Industries |
| Part Category | Fasteners & Hardware |
| Sub-Type | Fastener / Hardware |
| Engine Make | Cummins |
| Engine Model | ISM |
| Condition | New |
| Stage / Tier | Standard |
Pack of 5.
PAI 042058 is an external retaining ring. PAI specifies a 0.575-inch free outside diameter and 0.05-inch thickness. The manufacturer designates product-level OEM 3594521.
Compatible Engines
Manufacturer application categories: Cummins Ism Engine. Confirm the complete required part number and listed application before ordering.
Manufacturer product cross-references
Cummins 3594521
Match the complete part number and required specification before ordering.
PAI Part #: 042058
OEM References:
- CUMMINS 3594521
Applications:
- CUMMINS ISM ENGINE
Warranty: 2.0 year(s)
These catalog references may identify this part or components in an assembly. A listed number alone does not confirm whole-assembly interchange or vehicle fitment. Confirm the required part before ordering.
| Number |
|---|
| 3594521 |
| CUMMINS 3594521 |
| PAI 042058 |
No cross-reference numbers match that search.
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.






