Elkhart Plastics - 35 Gallon RV Black Water Holding Tank - 54" x 32" x 8" - EPI 4894 H867070
Elkhart Plastics - 35 Gallon RV Black Water Holding Tank - 54" x 32" x 8" - EPI 4894 H867070
35 Gallon RV Black Water Holding Tank - Elkhart Plastics EPI 4894
When your RV's black water system fails, you need an exact-fit replacement you can trust. The Elkhart Plastics EPI 4894 35-gallon black water holding tank delivers the same OEM-grade quality used by major RV manufacturers — so you get a perfect fit and lasting performance, not a generic aftermarket gamble.
Features & Specifications
- Capacity: 35 gallons (132 liters) — extended camping without frequent dump station visits
- Dimensions: 54" x 32" x 8" (L x W x H) — engineered for precise OEM replacement fit
- Material: High-density polyethylene (HDPE) — resists cracking, warping, UV, and chemical damage
- Part Numbers: EPI 4894 / H867070 — cross-referenced for easy identification
- Origin: Made in USA — manufactured at Elkhart Plastics' Indiana facility
- Weight: 87 lbs — heavy-duty wall thickness for long-term durability
- Construction: Seamless, leak-proof design with standard fittings and mounting points
Why Choose the Elkhart Plastics EPI 4894?
Elkhart Plastics Industries (EPI) is the largest manufacturer of custom polyethylene tanks in North America and the OEM supplier to virtually every major RV brand. When you install the EPI 4894 35-gallon RV black water holding tank, you're installing the same part that came in your rig from the factory — not a substitute.
The 54" x 32" x 8" footprint is a common OEM dimension found in Class A motorhomes, fifth wheels, and large travel trailers. The low-profile 8" height maximizes underbelly clearance while the wide 54" x 32" base delivers full 35-gallon capacity without sacrificing ground clearance.
Unlike aftermarket tanks that may require adapter fittings or custom mounting, the EPI 4894 drops in as a direct replacement — saving you time, labor costs, and the frustration of ill-fitting parts.
Compare 35-Gallon RV Holding Tanks
Not sure which tank fits your rig? Compare the EPI 4894 against similar-capacity Elkhart Plastics tanks to find the right dimensions for your application.
| Model (Part #) | Capacity | Dimensions (L x W x H) | Best For | View Details |
|---|---|---|---|---|
| EPI 4894 / H867070 ⬅ This Product | 35 Gallons | 54" x 32" x 8" | Class A motorhomes & large fifth wheels needing wide, low-profile tank | Current Page |
| EPI 3185 / H1233000 | 32 Gallons | 40" x 20" x 12" | Travel trailers & fifth wheels with narrower, taller underbelly space | View EPI 3185 |
| EPI 4848 / H1017 | 31 Gallons | 34" x 19.5" x 13" | Compact fifth wheels & travel trailers with taller tank bays | View EPI 4848 |
| EPI 2006 / H1231002 | 37 Gallons | 60" x 24" x 8" | Longer bays needing extra capacity with same low-profile height | View EPI 2006 |
💡 Pro Tip: Always measure your existing tank's length, width, and height before ordering. Even a 1" difference in height can prevent proper installation. Match your part number first — then verify dimensions as a secondary check.
Technical Specifications
- Tank Type: Black water (waste) holding tank
- Capacity: 35 gallons / 132 liters
- Length: 54"
- Width: 32"
- Height: 8"
- Material: High-density polyethylene (HDPE)
- Weight: 87 lbs
- Part Number: EPI 4894
- Cross-Reference: H867070
- Country of Origin: USA
- HS Code: 392510
- Fittings: Standard RV fittings included
- Mounting: Standard mounting points for direct OEM replacement
What's Included
- 1x Elkhart Plastics EPI 4894 35-gallon black water holding tank
- Standard fittings and mounting hardware
- Manufacturer quality assurance
Compatible Models & Alternatives
Looking for a different size or configuration? Browse our full selection of Elkhart Plastics OEM holding tanks:
- 32 Gallon RV Holding Tank - EPI 3185 (40" x 20" x 12")
- 31 Gallon RV Holding Tank - EPI 4848 (34" x 19.5" x 13")
- 37 Gallon RV Holding Tank - EPI 2006 (60" x 24" x 8")
Frequently Asked Questions
Is the EPI 4894 a direct replacement for my existing 35-gallon black water tank?
If your existing tank measures 54" x 32" x 8" or carries part number EPI 4894 or H867070, yes — this is a direct OEM replacement. Always verify dimensions before ordering.
What RV types is the 54" x 32" x 8" tank compatible with?
This tank is commonly found in Class A motorhomes, large fifth wheels, and some Class C motorhomes. The wide, low-profile design is ideal for rigs with shallow underbelly tank bays.
How do I install the EPI 4894 holding tank?
Professional installation is recommended. The tank includes standard fittings and mounting points for direct replacement. Drain the existing tank completely, disconnect fittings, remove mounting hardware, and reverse the process with the new tank.
What's the difference between black water and gray water tanks?
Black water tanks hold toilet waste, while gray water tanks collect sink and shower drain water. This EPI 4894 is specifically designed as a black water tank but the HDPE material is compatible with gray water applications as well.
Where to buy authentic Elkhart Plastics EPI 4894 holding tanks?
ElkhartRVParts.com is an authorized Elkhart Plastics dealer. Purchasing here ensures you receive a genuine OEM-grade part — not a counterfeit or inferior substitute.
Why Buy from Elkhart RV Parts?
- Authorized Dealer: Direct relationship with Elkhart Plastics / Ameri-Kart for guaranteed authenticity
- OEM Quality: Same parts used by major RV manufacturers on the assembly line
- Made in USA: Supporting American manufacturing in Elkhart, Indiana — the RV capital of the world
- Expert Support: Questions? Use our AI Live Chat for instant product guidance
- Fast Shipping: Nationwide shipping on all holding tanks
Original: $458.46
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$160.46Product Information
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Description
35 Gallon RV Black Water Holding Tank - Elkhart Plastics EPI 4894
When your RV's black water system fails, you need an exact-fit replacement you can trust. The Elkhart Plastics EPI 4894 35-gallon black water holding tank delivers the same OEM-grade quality used by major RV manufacturers — so you get a perfect fit and lasting performance, not a generic aftermarket gamble.
Features & Specifications
- Capacity: 35 gallons (132 liters) — extended camping without frequent dump station visits
- Dimensions: 54" x 32" x 8" (L x W x H) — engineered for precise OEM replacement fit
- Material: High-density polyethylene (HDPE) — resists cracking, warping, UV, and chemical damage
- Part Numbers: EPI 4894 / H867070 — cross-referenced for easy identification
- Origin: Made in USA — manufactured at Elkhart Plastics' Indiana facility
- Weight: 87 lbs — heavy-duty wall thickness for long-term durability
- Construction: Seamless, leak-proof design with standard fittings and mounting points
Why Choose the Elkhart Plastics EPI 4894?
Elkhart Plastics Industries (EPI) is the largest manufacturer of custom polyethylene tanks in North America and the OEM supplier to virtually every major RV brand. When you install the EPI 4894 35-gallon RV black water holding tank, you're installing the same part that came in your rig from the factory — not a substitute.
The 54" x 32" x 8" footprint is a common OEM dimension found in Class A motorhomes, fifth wheels, and large travel trailers. The low-profile 8" height maximizes underbelly clearance while the wide 54" x 32" base delivers full 35-gallon capacity without sacrificing ground clearance.
Unlike aftermarket tanks that may require adapter fittings or custom mounting, the EPI 4894 drops in as a direct replacement — saving you time, labor costs, and the frustration of ill-fitting parts.
Compare 35-Gallon RV Holding Tanks
Not sure which tank fits your rig? Compare the EPI 4894 against similar-capacity Elkhart Plastics tanks to find the right dimensions for your application.
| Model (Part #) | Capacity | Dimensions (L x W x H) | Best For | View Details |
|---|---|---|---|---|
| EPI 4894 / H867070 ⬅ This Product | 35 Gallons | 54" x 32" x 8" | Class A motorhomes & large fifth wheels needing wide, low-profile tank | Current Page |
| EPI 3185 / H1233000 | 32 Gallons | 40" x 20" x 12" | Travel trailers & fifth wheels with narrower, taller underbelly space | View EPI 3185 |
| EPI 4848 / H1017 | 31 Gallons | 34" x 19.5" x 13" | Compact fifth wheels & travel trailers with taller tank bays | View EPI 4848 |
| EPI 2006 / H1231002 | 37 Gallons | 60" x 24" x 8" | Longer bays needing extra capacity with same low-profile height | View EPI 2006 |
💡 Pro Tip: Always measure your existing tank's length, width, and height before ordering. Even a 1" difference in height can prevent proper installation. Match your part number first — then verify dimensions as a secondary check.
Technical Specifications
- Tank Type: Black water (waste) holding tank
- Capacity: 35 gallons / 132 liters
- Length: 54"
- Width: 32"
- Height: 8"
- Material: High-density polyethylene (HDPE)
- Weight: 87 lbs
- Part Number: EPI 4894
- Cross-Reference: H867070
- Country of Origin: USA
- HS Code: 392510
- Fittings: Standard RV fittings included
- Mounting: Standard mounting points for direct OEM replacement
What's Included
- 1x Elkhart Plastics EPI 4894 35-gallon black water holding tank
- Standard fittings and mounting hardware
- Manufacturer quality assurance
Compatible Models & Alternatives
Looking for a different size or configuration? Browse our full selection of Elkhart Plastics OEM holding tanks:
- 32 Gallon RV Holding Tank - EPI 3185 (40" x 20" x 12")
- 31 Gallon RV Holding Tank - EPI 4848 (34" x 19.5" x 13")
- 37 Gallon RV Holding Tank - EPI 2006 (60" x 24" x 8")
Frequently Asked Questions
Is the EPI 4894 a direct replacement for my existing 35-gallon black water tank?
If your existing tank measures 54" x 32" x 8" or carries part number EPI 4894 or H867070, yes — this is a direct OEM replacement. Always verify dimensions before ordering.
What RV types is the 54" x 32" x 8" tank compatible with?
This tank is commonly found in Class A motorhomes, large fifth wheels, and some Class C motorhomes. The wide, low-profile design is ideal for rigs with shallow underbelly tank bays.
How do I install the EPI 4894 holding tank?
Professional installation is recommended. The tank includes standard fittings and mounting points for direct replacement. Drain the existing tank completely, disconnect fittings, remove mounting hardware, and reverse the process with the new tank.
What's the difference between black water and gray water tanks?
Black water tanks hold toilet waste, while gray water tanks collect sink and shower drain water. This EPI 4894 is specifically designed as a black water tank but the HDPE material is compatible with gray water applications as well.
Where to buy authentic Elkhart Plastics EPI 4894 holding tanks?
ElkhartRVParts.com is an authorized Elkhart Plastics dealer. Purchasing here ensures you receive a genuine OEM-grade part — not a counterfeit or inferior substitute.
Why Buy from Elkhart RV Parts?
- Authorized Dealer: Direct relationship with Elkhart Plastics / Ameri-Kart for guaranteed authenticity
- OEM Quality: Same parts used by major RV manufacturers on the assembly line
- Made in USA: Supporting American manufacturing in Elkhart, Indiana — the RV capital of the world
- Expert Support: Questions? Use our AI Live Chat for instant product guidance
- Fast Shipping: Nationwide shipping on all holding tanks
