Finding a fuel tank for a pickup means matching fit, capacity, and installation needs. This guide highlights five practical choices across common sizes and fitments, helping buyers choose based on truck model, fuel type, and mounting space. The top picks range from direct-fit, 16-gallon tanks for classic pickups to large-capacity auxiliary tanks for extended trips. The buyer intent is clear: select the right tank for reliability, ease of install, and intended use—daily driving, heavy hauling, or off-road adventures.
Summary table of selected products:
| Product | Best For | Key Benefit |
|---|---|---|
| JC Whitney Fuel Tank For GMC K2500 1979-1981 | Classic GM pickups | Direct fit, painted galvanized steel, 16 gallons |
| TRQ Fuel Tank Steel 16 gal V1500 V2500 | Direct-fit replacement | Extensive compatibility and DIY videos |
| RDS MFG INC Rectangular Auxiliary Fuel Tank – 69 Gallon | High-capacity auxiliary | Large capacity for long trips |
| Dorman 576-728 Fuel Tank | Reliable replacement | Durable, validated fit |
| Dorman 576-343 Fuel Tank | Budget-friendly replacement | Quality and fit assurance |
JC Whitney Fuel Tank For GMC K2500 1979-1981
Best for classic GM pickups and trucks that require a direct-fit, factory-like replacement. The JC Whitney tank is designed for several GMC and Chevrolet pickups from the late 1970s to early 1980s, including K2500, C10, and K30 models. It comes painted and galvanized for corrosion resistance, with a 16-gallon capacity and a lock ring kit included. This tank is ideal for owners restoring original fuel systems or needing a dependable, stock-size replacement that preserves stock geometry.
- Best for: Classic GM trucks with factory layouts and wheelbase combinations similar to early K-series and C/ K-Series pickups.
- Why selected: Direct-fit for multiple models; includes lock ring kit and compatible dimensions.
- Caution: Availability of exact fit depends on model year and trim; confirm compatibility in the listing’s fitment notes.
Fuel Tank Kit – 19.5 Gallon In-Cab (Ford F-100 1961-1972)
Best for older Ford F-100 pickups needing a complete in-cab fuel system replacement. This kit includes the fuel tank, sending unit, filler neck, and connector hose for 1961–1972 models. It is a solid option when restoring the original fuel-delivery setup and when you want a single-package replacement rather than sourcing individual parts.
- Best for: Ford F-100 enthusiasts performing full-systems restoration.
- Why selected: Comprehensive kit simplifies installation and fitment checks.
- Caution: Fitment is explicitly for Ford F-100 models within the listed years; other Ford trucks may not be compatible.
TRQ Fuel Tank Steel 16 gal V1500 V2500
Best for direct-fit replacement with a robust support ecosystem. TRQ’s 16-gallon steel tank is positioned for models in the V1500 and V2500 range and emphasizes compatibility with an extensive DIY video library. The listing highlights fit verification features and compatibility charts, aiming to reduce installation guesswork for car enthusiasts and mechanics alike.
- Best for: DIY installers seeking guidance and a straightforward fitment process.
- Why selected: Recognized DIY support and broad compatibility charts.
- Caution: Confirm your exact Vehicle Identification Number (VIN) and marked fit within the Amazon Garage tool before purchase.
RDS MFG INC Rectangular Auxiliary Fuel Tank – 69 Gallon
Best for extended-range needs and heavy-duty work trucks that require significant extra fuel capacity. The 69-gallon rectangular auxiliary tank supports gasoline fueling and can be siphoned from the top via an electric pump. Its dimensions (57.0″ L x 18.0″ W x 16.0″ H) suit larger bed spaces or underbody mounting with room for routing hoses and pumps. This option is ideal for long-haul or off-road use where frequent refueling is impractical.
- Best for: Vehicles needing substantial additional fuel storage between fills.
- Why selected: High capacity for long trips or remote work sites.
- Caution: Installation requires mounting space and proper plumbing; ensure clearance with other components.
Dorman 576-343 Fuel Tank
Best for straightforward, budget-conscious replacements with assured fit. The Dorman 576-343 fuel tank is marketed as a reliable replacement for specific model years and configurations. It emphasizes rugged construction, a consistent fit, and a long service life, making it a practical choice for standard pickups needing a dependable original-style tank.
- Best for: Budget-friendly, dependable replacements.
- Why selected: Clear fitment validation and durable construction.
- Caution: Verify exact model compatibility to avoid mismatches with non-listed variants.
Buying Guide
Key considerations for selecting a pickup truck fuel tank include capacity, fitment, mounting space, material, and whether you need a complete in-cab kit. Start by listing your truck model, year, and bed length to narrow choices to direct-fit options. Consider whether you want a 16-gallon standard size or a larger auxiliary tank for extended trips. Material matters: steel tanks offer durability but may require more corrosion protection; painted tanks resist rust but require surface protection. If upgrading, verify whether a lock ring kit or sending unit is included, and check for compatibility with your chosen fuel type (gasoline or diesel).
Purchase considerations by scenario
- Daily driver with minimal space: choose a direct-fit, 16-gallon tank designed for your model year.
- Long trips or remote work: consider a high-capacity auxiliary tank, like 69 gallons, with proper mounting and pump setup.
- Budget constraints: opt for a well-validated replacement from a reputable brand offering clear fitment data.
- Restoration projects: prioritize tanks with clear original-style dimensions and included installation hardware.
- Diesel vs. gasoline: confirm the data sheet confirms compatibility with your fuel type and required fittings.
Frequently Asked Questions
- What is the typical capacity range for pickup truck fuel tanks?
- How do I verify that a tank will fit my exact model and year?
- Is an auxiliary tank always easier to install than a factory-style tank?
- What are common installation challenges to expect?
- Do replacement tanks require special seals or gaskets?
- Can I install a different brand than the original without modifications?
Note: For accurate fitment, always consult model-specific listings and use Amazon’s “confirmed fit” or vehicle compatibility tools. This article gathers product options and general guidance to aid in decision-making and does not replace official OEM specifications or professional installation advice.