Collection: Volvo & Mack Truck Parts | Genuine OEM Heavy-Duty Components
Explore our complete selection of Volvo and Mack heavy-duty truck parts, featuring genuine OEM components and select S&S Truck Parts replacements. This collection includes engine sensors, gauges, air system fittings, transmission switches, V-band clamps, and electrical harnesses—everything built to keep Volvo VN, VNL, and Mack models performing like new.
Whether you’re maintaining a single truck or managing a fleet, our new surplus (NOS) and factory-tested parts provide dependable fit, OEM-grade quality, and lasting value. Each part is backed by the expertise of Discount Parts Exchange—where decades of drivetrain experience meet trusted inventory.
Heavy-Duty Solutions — Built to Perform. Trusted to Last.
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Vendor:Volvo Mack744GB357 Mack EGR Hose Assembly | E7 Engine | OEM 25101501 | New Genuine
744GB357 | Mack EGR Hose Assembly | E7 Engine | OEM 25101501 | New Genuine Product Summary: 744GB357...Regular price $34.47 USDSale price $34.47 USD Regular priceUnit price per -
Vendor:Volvo Mack631-130086 Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM
631-130086 | Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM Product Summary:631-130086 is a genuine...Regular price $37.47 USDSale price $37.47 USD Regular priceUnit price per -
Vendor:Volvo Mack57GC517P2 Mack Oil Drain Fitting & Hose Kit | E7 Engine | New Genuine OEM
57GC517P2 | Mack Oil Drain Fitting & Hose Kit | E7 Engine | New Genuine OEM Product Summary:57GC517P2...Regular price $94.47 USDSale price $94.47 USD Regular priceUnit price perSold out -
Vendor:Volvo Mack41MR3666M Mack Wiring Harness | Proven Rev B | New Genuine OEM (NOS)
41MR3666M | Mack Wiring Harness | Proven Rev B | New Genuine OEM (NOS) Product Summary:41MR3666M is a...Regular price $147.74 USDSale price $147.74 USD Regular priceUnit price per -
Vendor:truckparts4u.com3MT275M Mack Water Temperature Gauge | OEM 25159920 | New Genuine
3MT275M | Mack Water Temperature Gauge | OEM 25159920 | New Genuine Product Summary: 3MT275M is a genuine...Regular price $107.47 USDSale price $107.47 USD Regular priceUnit price per -
Vendor:Volvo Mack39MT39M2B Mack Manifold Boost Pressure Gauge | 25192208, 21814287 | New Genuine OEM (NOS)
39MT39M2B | Mack Manifold Boost Pressure Gauge | 25192208, 21814287 | New Genuine OEM (NOS) Product Summary:39MT39M2B is...Regular price $67.74 USDSale price $67.74 USD Regular priceUnit price per -
Vendor:truckparts4u.com380SB55 Volvo / Mack Oil Fill Cap & Lanyard | New Genuine Mack (NOS)
380SB55 | Volvo / Mack Oil Fill Cap & Lanyard | New Genuine Mack (NOS) Product Summary:380SB55 is...Regular price $57.85 USDSale price $57.85 USD Regular priceUnit price per -
Vendor:Volvo Mack25168958 Mack Air Suspension Pressure Gauge 0–100 PSI | 7MT337 | New Genuine OEM
25168958 | Mack Air Suspension Pressure Gauge 0–100 PSI | 7MT337 | New Genuine OEM Product Summary:25168958 is...Regular price $114.74 USDSale price $114.74 USD Regular priceUnit price per -
Vendor:Volvo Mack25167901 Mack Pressure Switch | 1MR3319AP2, Honeywell 79211-6 | New Genuine OEM
25167901 | Mack Pressure Switch | 1MR3319AP2, Honeywell 79211-6 | New Genuine OEM Product Summary: 25167901 is a...Regular price $34.74 USDSale price $34.74 USD Regular priceUnit price per -
Vendor:Volvo Mack25163344 | Mack Rocker Switch 1MR4285M3 | New Genuine Mack
25163344 | Mack / Eaton Rocker Switch | 1MR4285M3 | New Genuine OEM Product Summary:25163344 is a genuine...Regular price $24.47 USDSale price $24.47 USD Regular priceUnit price per -
Vendor:Volvo Mack25004362 Mack Circuit Breaker Switch | 1MR4321M2 / 25498684 | New Genuine OEM
25004362 | Mack Circuit Breaker Switch | 1MR4321M2 / 25498684 | New Genuine OEM Product Summary:25004362 is a...Regular price $24.47 USDSale price $24.47 USD Regular priceUnit price per -
Vendor:Volvo Mack21483569 Volvo / Mack Elbow Fitting | Norgren PA66-IMD30 | New Genuine
21483569 | Volvo / Mack Elbow Fitting | Norgren PA66-IMD30 | New Genuine OEM Product Summary:21483569 is a...Regular price $24.74 USDSale price $24.74 USD Regular priceUnit price per
Your #1 Source for Remanufactured Transmissions, Differentials, Transfer Cases & PTOs — Since 1997
Trusted by Fleets & Technicians for Over 25 Years
Discount Parts Exchange delivers quality, reliability, and value in every drivetrain component. Backed by decades of hands-on experience, our heavy-duty solutions are built to keep your truck running.