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DSP-4108 UNLOADER SPRING (Pack of 2)
Commercial diesel air brake. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$5.98
In Stock
PAI Part #DSP-4108
JAK'S Part #JAKS-DSP-4108
Kit Membership
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
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DMK-4410MAINTENANCE KIT In stock -
DUK-4100Mack UNIVERSAL UNLOADER KIT In stock - No kits match that search.
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
Sold in a pack of 2. Price shown is for 2 pieces.
UNLOADER SPRING
OEM cross-references:
- NAVISTAR 157662H2
- MACK 362SB154
- MACK 745-239972
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.







