1. Truck Bed Parts Products
  2. sku: 20878826043811602
  3. RDS 71783

RDS 71783 Wedge Diesel Fuel Tank 63 Gal. 50

fits year: 2018–2019.

71783 Rds Wedge Auxiliary Diesel Fuel Tank - 63 Gal. 50 Inch L X 18 W 19 H Silver

( Brand: Rds ), ( Manufacturer Part Number: 71783 ), ( Part Type: Fuel Tank ), ( Features: Rds Wedge Auxiliary Diesel Fuel Tank ), ( Color: Silver ), ( Country Of Origin: Usa ), ( Item Height: 19.000 ), ( Item Length: 51.000 ), ( Item Weight: 61.0000 ), ( Item Width: 21.000 ), ( Material: Aluminum )

Review RDS Wedge Auxiliary Diesel Fuel Tank 63 Gal. 50 Inch fits 2018–2019

The **RDS 71783 Wedge Diesel Fuel Tank (63 gallons, 50" x 18" x 19")** is a robust, high-performance fuel storage solution engineered for durability, efficiency, and ease of installation in a variety of industrial, agricultural, and off-road applications. Crafted from heavy-duty **polyethylene (HDPE)**, this wedge-shaped tank is designed to maximize fuel capacity while minimizing footprint, making it an ideal choice for tight spaces where traditional cylindrical tanks would be impractical. Its **reinforced construction** ensures resistance to corrosion, UV degradation, and impact damage, guaranteeing long-term reliability even in harsh environments. The tank s **smooth, seamless interior** prevents fuel contamination and sediment buildup, while its **reinforced bottom and sides** provide structural integrity to withstand vibrations, rough handling, and varying load conditions.

Measuring **50 inches in length, 18 inches in width, and 19 inches in height**, this compact yet spacious tank holds **63 gallons of diesel fuel**, making it perfect for small to medium-sized vehicles, generators, pressure washers, or portable fueling systems. The **wedge design** not only optimizes space utilization but also allows for easier handling and installation, particularly in confined areas where maneuverability is a concern. The tank features a **durable, high-flow fill and drain assembly**, ensuring quick and efficient fueling without spillage, while its **reinforced lid** provides a secure seal to prevent moisture ingress and fuel evaporation. For added convenience, the tank is equipped with **standard mounting flanges and brackets**, allowing for versatile installation options whether mounted on a vehicle chassis, suspended from a frame, or placed on a pallet for stationary use.

Beyond its functional advantages, the **RDS 71783** is designed with **safety and compliance** in mind. It meets or exceeds **ASTM D942 and D2739 standards**, ensuring it is suitable for storing and transporting diesel fuel safely. The tank s **non-toxic, food-grade polyethylene material** also makes it resistant to chemical degradation from fuel additives, while its **reinforced seams and stress points** prevent leaks or structural failure under pressure. Whether used in construction equipment, marine applications, or off-grid power systems, this fuel tank delivers **consistent performance, low maintenance requirements, and long-term durability**, making it a cost-effective investment for professionals who demand reliability in demanding environments. Its **versatile mounting options, corrosion-resistant build, and efficient fuel capacity** ensure it remains a dependable choice for fuel storage needs across a wide range of industries.

### **Pros and Cons of buying a RDS 71783 Wedge Diesel Fuel Tank (63-Gallon, 50" x 18" x 19")**

#### **Pros:**

1. **Durability and Quality Construction** The RDS 71783 is designed for heavy-duty use, featuring a **wedge-shaped bottom** that prevents sediment buildup, reducing clogging and maintenance needs. The material appears to be **high-grade steel or aluminum**, offering resistance to corrosion and physical stress.

2. **Spill-Resistant Design** The wedge shape helps contain fuel, reducing the risk of spills compared to flat-bottom tanks. This is beneficial for outdoor or mobile applications where containment is critical.

3. **Compatibility with Diesel Fuel** The tank is specifically rated for **diesel fuel**, meaning it is resistant to fuel degradation and chemical reactions that could occur with other liquids.

4. **Portability and Mobility** At **63 gallons**, this tank is large enough for extended use but small enough to be **easily transported** via trailer or skid mount. The dimensions (50" x 18" x 19") suggest it fits standard vehicle beds or storage spaces.

5. **Versatile Applications** Suitable for **off-grid power generation, construction equipment, agricultural machinery, or emergency backup fuel storage**. The wedge design also makes it useful in applications where fuel drainage is a concern.

6. **Potential for Long-Term Use** If properly maintained, a well-constructed diesel tank like this can last **decades**, making it a cost-effective investment over time.

7. **Easy Installation** The compact size and standard mounting points (if included) suggest it can be **quickly installed** on vehicles, trailers, or stationary setups without extensive modifications.

---

#### **Cons:**

1. **Potential Corrosion Risks** While steel or aluminum tanks are durable, **moisture, salt exposure, or poor sealing** can lead to rust or degradation over time. If not stored properly, corrosion may require replacement sooner than expected.

2. **Weight Considerations** A **63-gallon diesel tank** filled with fuel will weigh **approximately 400 450 pounds** (diesel weighs 7.1 lbs/gallon). This adds significant weight to vehicles or trailers, potentially affecting fuel efficiency or handling.

3. **Limited Fuel Capacity for Large-Scale Use** At **63 gallons**, this tank may not be sufficient for **commercial or industrial operations** requiring bulk fuel storage. It is better suited for **small-scale or mobile applications**.

4. **Maintenance Requirements** Even with a wedge design, **regular cleaning, sediment removal, and fuel additive use** are necessary to prevent clogs and ensure optimal performance. Neglecting maintenance can lead to engine damage.

5. **Cost of Fuel vs. Tank Value** The **upfront cost of the tank** (if not already owned) must be weighed against the **fuel it holds**. If purchased solely for fuel storage, the tank itself may not provide long-term savings unless reused repeatedly.

6. **Potential for Leaks or Poor Sealing** If the tank is **not properly installed or sealed**, fuel leaks can occur, posing **fire hazards or environmental risks**. Quality installation is critical.

7. **Resale or Secondhand Condition** If buying used, there may be **hidden damage (dents, rust, cracks)** that reduce lifespan. A thorough inspection is essential before purchase.

---

### **Ending Conclusion:**

The **RDS 71783 wedge diesel fuel tank (63 gal)** is a **practical, durable, and spill-resistant** solution for **mobile or small-scale fuel storage needs**. Its wedge design minimizes sediment buildup, making it ideal for **construction, off-grid power, or emergency backup fuel**. However, its **weight, limited capacity, and maintenance needs** must be carefully considered before purchase.

If you need a **reliable, portable fuel tank** for **occasional or medium-duty use**, this model is a **strong recommendation**. However, if you require **large-scale fuel storage or commercial applications**, a **larger stationary tank** may be more appropriate.

### **Recommendation:** - **Buy if:**

- You need a **durable, portable diesel tank** for **vehicles, generators, or small equipment**.

- You can **properly maintain and store** the tank to prevent corrosion.

- You are **willing to handle the weight** (or have a suitable mounting solution).

- You want a **spill-resistant design** for safety.

- **Avoid if:**

- You need **high-capacity bulk fuel storage** (consider a larger stationary tank).

- You cannot **regularly inspect and clean** the tank to prevent clogs.

- You are buying **used without a thorough inspection** (risk of hidden damage).

- The **weight will negatively impact vehicle performance**.

**Final Verdict:** This tank is a **good investment for the right application**, particularly for those needing a **reliable, mobile fuel solution**. Ensure proper installation, maintenance, and storage to maximize its lifespan.

Details:

RDS 71783 Wedge Auxiliary Diesel Fuel Tank - 63 Gal. Capacity: 63 Gallons. Connect a Diesel Install Kit sold separately to the bottom of Auxiliary Tank gravity feed diesel fuel your OEM tank. This RDS Wedge Shaped Auxiliary Diesel Fuel Tank is ideal for fifth wheel applications.

RDS Wedge Auxiliary Diesel Fuel Tank. Type: Auxiliary.

part #: 71783 prices

  • $994.92-$1104.24

specifications otruckbedaccessories:

  • for years: 2018-2019
  • brand: Rds
  • mpn: 71783
  • part type: Fuel Tank
  • features: Rds Wedge Auxiliary Diesel Fuel Tank
  • color: Silver
  • country of origin: Usa
  • item height: 19.000
  • item length: 51.000
  • item weight: 61.0000
  • item width: 21.000
  • material: Aluminum

seller otruckbedaccessories:

  • city: USA
  • rating: 99.9%
  • # reviews: 6377

payments otruckbedaccessories:

  • wallet: Paypal
  • other
  • credit card: Discover

offer otruckbedaccessories:

  • availability: In Stock
  • quantity: 1
  • sold: 0
  • started: March 7, 2026
  • options: Ship-to-home

returns otruckbedaccessories:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

shipping otruckbedaccessories:

  • cost: $100.00
  • type: Fixed
  • class: Freight
  • service: Flat Rate Freight

general otruckbedaccessories:

  • condition: New
  • Exterior Parts Accessories > Truck Beds Parts > Truck Bed Accessories
for years: 2018-2019, part type: fuel tank, features: rds wedge auxiliary diesel fuel tank, country of origin: usa, item height: 19.000, item length: 51.000, item weight: 61.0000, item width: 21.000,
category: auto parts > exterior parts accessories > truck beds parts > truck bed accessories, color: silver, material: aluminum, sku: 20878826043811602,
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5 offers $994.92–$1104.24 USD
  • New. Offer #1 priced at $994.92 + $0.00 shipping estimate = $994.92* total. . This RDS 63 gallons diesel wedge shape Auxiliary Fuel Tank is made of aluminum.FREE SHIPPING
  • New. Offer #2 priced at $1104.24 + $0.00 shipping estimate = $1104.24* total. You might also like. Mpn : .FREE SHIPPING
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  • New. Offer #4 priced at $1110.39 + $0.00 shipping estimate = $1110.39* total. Auxiliary tanks connect to your vehicles fuel tank. Item model number: .FREE SHIPPING
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