EST-0421 Mack NATURAL GAS / E7 / E-TECH Stud
Used In These Kits
This part is included in 5 engine & overhaul kits — find yours below.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Fasteners & Hardware |
| Engine Make | Mack |
| Engine Model | NATURAL GAS · E7 · E-TECH · ASET · CX613 MODELS |
| Condition | New |
| Stage / Tier | Standard |
Sold in a pack of 4. Price shown is for 4 pieces.
STUD
PAI Part #: EST-0421
OEM References:
- MACK 20706502
- MACK 4103-5010550655
- MACK 616GC245M4
- MACK 616GC271M
- MACK 20901575
- MACK 616GC279AM
- MACK 616GC279M
- MACK 616GC230M3
- MACK 616GC245M3
- RENAULT 5010550655
Applications:
- MACK NATURAL GAS
- MACK E7 ENGINES
- MACK E-TECH ENGINES
- MACK ASET ENGINE
- MACK CX613 MODELS
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 |
|---|
| 20706502 |
| 4103-5010550655 |
| 616GC245M4 |
| 616GC271M |
| 20901575 |
| 616GC279AM |
| 616GC279M |
| 616GC230M3 |
| 616GC245M3 |
| 5010550655 |
| MACK 20706502 |
| MACK 4103-5010550655 |
| MACK 616GC245M4 |
| MACK 616GC271M |
| MACK 20901575 |
| MACK 616GC279AM |
| MACK 616GC279M |
| MACK 616GC230M3 |
| MACK 616GC245M3 |
| RENAULT 5010550655 |
| PAI EST-0421 |
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.










