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GMS-6422 Mack MAINSHAFT
Commercial diesel transmission. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$799.32$807.39
Save $8.07
In stock — ships same day
2 available
PAI Part #GMS-6422
JAK'S Part #JAKS-GMS-6422
Included Components
What’s In This Kit
Browse 1 included components with current product details and availability.
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GTB-0480Mack OIL TUBE (Pack of 5) In stock - No included components match that search.
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
MAINSHAFT
Fits:
- MACK TRXL-107 TRANSMISSION 6-SPEED
- MACK TRDL/TRDLG-107,1070 TRANSMISSION 10-7 SPEED
OEM cross-references:
- GTB-0480 186KD129
- MACK 25087810
- MACK 615KC168A
- MACK 615KC168
- MACK 615KC168B
- MACK 615KC163
- MACK 615KC166
- MACK 615KC4139
- MACK 615KC4139A
- MACK 615KC4139B
- MACK 615KC4180
- MACK 615KC4180A
- PAI GMS-6422
Warranty: 24 months
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.






