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GT Development

GT Development 1/4" Fuel Tank Vent - 139-3

GT Development 1/4" Fuel Tank Vent - 139-3

Regular price $39.43 USD
Regular price $56.33 USD Sale price $39.43 USD
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Orders are typically processed within 24–48 hours, Monday through Friday, excluding major U.S. holidays. Shipping options include Small Package Saver, Ground, Second Day Air, and Next Day Air. Free Shipping applies to qualifying items within the contiguous 48 states. Freight or oversized shipments require a commercial address. Please inspect all deliveries and report damages within 24–48 hours. We ship only within the continental U.S. and cannot deliver to P.O. boxes or international locations. Most orders ship from our North Carolina warehouse.For estimated transit times, see the shipping chart. Read more information.

About us

Expert-selected truck parts

At FleetPro Parts, we specialize in supplying OEM replacement parts for heavy-duty trucks. From Freightliner and Detroit Diesel to Cummins, Mack, Volvo, and Wabco, our catalog covers the components you need to keep your fleet moving. Every part we stock is tested, reliable, and built to match OEM standards, so you can order with confidence. Our team knows truck parts inside out—from engine cooling and steering to AC systems, alternators, and fuel components. Whether you’re maintaining a single truck or managing an entire fleet, we make it easy to find the right part, at the right time. For when it matters. More about Us.

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FleetPro Truck Center Inc • 4989 Hendersonville Rd, Fletcher, NC 28732 • Phone +1 888-722-1331

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Description:

Prevent fuel tank vacuum collapse, control internal vapor pressure buildup, and protect heavy-duty fuel delivery systems with the Genuine GT Development 1/4" NPT Fuel Tank Vent Valve (139-3 / 1393). Engineered for commercial trucks, vocational rigs, and industrial equipment, this high-performance safety vent threads directly into 1/4" NPT fuel tank bungs.

Features:

Brand: Genuine GT Development / Norgren
MPN: 139-3 / 1393 / GTD139-3
Product Type: Commercial Heavy-Duty Fuel Tank Pressure Relief & Rollover Vent Valve
Port / Thread Size: 1/4" NPT Male Pipe Thread
Functional Type: Dual-Action Pressure & Vacuum Relief with Gravity Rollover Shutoff
Body Material: Heavy-Duty Machined Brass
Pressure Relief Setting: Nominal 1.5–2.0 PSI Relief
Vacuum Relief Setting: Nominal 0.5 PSI
Vehicle & Equipment Compatibility: Commercial Class 7 & 8 Trucks (Kenworth, Peterbilt, Freightliner, International, Volvo, Mack), Vocational Rigs, and Industrial Equipment
Origin: Genuine OEM Product

Cross Reference: 139-3, 1393, GTD139-3, GTD-139-3, 139-3-GTD, S-21915, 100095N, X002298, 2104-1393, AV139-3

Part# : 139-3
Brand: GT Development