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✓ ElkhartRVParts.com - The Only Authorized Place for Alpha
✓ 100% Verified Authentic OEM Grade Part
Alpha 26 Gallon RV Holding Tank - 402001CD
Upgrade your RV's waste management system with the Alpha 402001CD, a premium 26-gallon holding tank engineered to meet or exceed OEM standards. This rotational molded tank features seamless one-piece construction, superior durability, and leak-tested reliability. With extra-long low-profile dimensions of 62" x 26" x 7.5", this tank delivers excellent waste capacity while fitting RV compartments with length availability and limited height clearance.
Why Choose the Alpha 402001CD Holding Tank?
Extra-Long Low-Profile Design
With a 62-inch length and low 7.5-inch height, the 402001CD is perfect for RVs with ample length but limited vertical clearance. The moderate 26-inch width balances capacity with space efficiency.
Rotational Molded One-Piece Construction
Engineered without seams, joints, or weak points, this rotational molded tank delivers superior strength and leak-proof reliability that withstands the rigors of RV travel, movement, vibration, and temperature changes.
OEM Quality Standards
Built to original equipment manufacturer specifications, the 402001CD meets strict health and safety standards and is individually leak-tested to ensure long-lasting performance.
Proven Reliability with 4.8-Star Rating
With a 4.8-star rating from customer reviews, RVers trust the 402001CD for its quality construction and reliable performance.
Technical Specifications
- Part Number: 402001CD
- Capacity: 26 gallons
- Dimensions: 62" Length x 26" Width x 7.5" Height
- Material: Rotational molded polyethylene
- Construction: Seamless one-piece design
- Tank Type: Holding tank (black water)
- SKU: 402001CD
- Manufacturer: Alpha Systems
- Quality: OEM Grade, individually leak-tested
- Customer Rating: 4.8/5 stars (4 reviews)
Compare Alpha Holding Tanks - Find Your Perfect Size
Not sure if the 402001CD is the right fit? Compare it with other Alpha holding tanks in the 26-30 gallon range to find the perfect match for your RV's waste management needs and space constraints.
| Model | Capacity | Dimensions (L x W x H) | Best For | View Details |
|---|---|---|---|---|
| 402001CD | 26 gallons | 62" x 26" x 7.5" | Current Product - Extra-long low profile | You're here! |
| VB22548H | 30 gallons | 54" x 21.5" x 8" | More capacity, shorter | View → |
| VB23528HL | 30 gallons | 52" x 23" x 8" | More capacity, narrower | View → |
Tip: The 402001CD's 62-inch length makes it ideal for RVs with extended undercarriage compartments. If you need more capacity with similar dimensions, consider the VB22548H or VB23528HL for 30-gallon options.
What's Included
- One (1) Alpha 402001CD 26 Gallon Holding Tank
- OEM Grade Quality Certification
- Individual Leak Test Verification
- Manufacturer Documentation
Frequently Asked Questions
Will this tank fit my RV?
The 402001CD is designed as a replacement for many OEM holding tanks with similar dimensions. Measure your existing tank compartment (62" x 26" x 7.5") and verify drain location before ordering to ensure proper fitment.
What's the difference between 402001CD and 403001CD?
Both tanks have identical dimensions (62" x 26" x 7.5") and 26-gallon capacity. The different part numbers may indicate minor variations in drain configuration or manufacturing specifications. Verify your original part number for best compatibility.
How long will this tank last?
With proper care and maintenance, Alpha holding tanks are built to last for many years, often outlasting the RV itself. The seamless rotational molded construction eliminates common failure points found in welded or multi-piece tanks.
Is this tank leak-tested?
Yes, every Alpha 402001CD tank is individually leak-tested at the factory to ensure quality and reliability before shipping.
Can I install this tank myself?
While experienced RVers can install holding tanks, we recommend professional installation to ensure proper mounting, plumbing connections, and vent configuration for optimal performance and safety.
Why Buy from Elkhart RV Parts?
- 100% Authentic OEM Parts
- Fast Shipping
- 30-Day Return Policy
- Authorized Alpha Dealer
- Expert Customer Support
Questions? Use our AI Live Chat for expert guidance!
| Material | Rotational Molded Plastic |
|---|---|
| Width (inches) | 26 |
| Height (inches) | 7.5 |
| Length (inches) | 62 |
| Capacity (gallons) | 26 |
- What are the dimensions of the alpha 26 gallons holding tank? The holding tank measures 62 inches in length, 26 inches in width, and 7.5 inches in height.
- Is this holding tank durable enough for rv travel? Yes, the tank is made with extra durable rotational molded construction designed to withstand movement, vibration, and temperature changes during RV travel.
- Does this tank meet health and safety standards for rv waste management? Yes, the Alpha holding tank meets all necessary health and safety standards for RV waste management.
- Is this product compatible with new rv builds? Yes, this tank is made with authentic OEM parts and is the same high-quality tank used by major RV manufacturers in new builds.
- How is the quality of the holding tank ensured before shipping? Each tank undergoes rigorous quality testing, including being individually submerged and tested for leaks before shipping.
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

