CURT Universal 5th Wheel Base Rails | 16205 | 40K Teridium (Heavy-Duty 80K PSI Alloy)

Install your 5th wheel hitch with confidence using the CURT Universal 5th Wheel Base Rails (Part #16205). Industry-standard base rails only. Designed to be used with CURT custom under-bed brackets (sold separately) for a solid installation. Industry-standard mounting points accept virtually any CURT 5th wheel hitch and most competitor brands. Rated to 40,000 lb gross trailer weight. Tested to SAE J2638 safety standards. Teridium finish with rust-resistant A-coat + powder coat co-cured protection. Backed by CURT's limited lifetime warranty.

⭐ Industry-Standard Mounting Points

Standout compatibility benefit: industry-standard attachment points accept virtually any 5th wheel hitch with industry-standard legs. Meaningful cross-brand flexibility:

• All CURT 5th wheel hitches (excludes puck system products)
• Most competitor 5th wheel hitches
• 5th wheel rollers
• Compatible with gooseneck adapters (X5 series)

⭐ 80,000-PSI Alloy Steel — Heavy-Duty Construction

Standout construction credential vs standard 25K rails: constructed from 80,000-PSI alloy steel for superior strength and durability. This heavy-duty engineering is what enables the industry-first 40K gross trailer weight rating — meaningful for buyers with heavy commercial trailers, oversized 5th wheels, or PowerRide 30K hitch installations.

⭐ Dual-Coat Rust Protection

Standout durability feature: rails are protected by a co-cured finish of liquid A-coat and Teridium powder coat. Meaningful benefits:

• Long-lasting resistance to rain, snow, mud, road salt, and UV damage
• Scratch and corrosion resistance
• Cosmetic longevity — finish holds up to years of RV towing

What's Included

Rails Only (80K PSI Alloy): two heavy-duty 80,000-PSI alloy steel base rails (brackets sold separately)

Complete CURT Universal Base Rails Lineup

Choose by capacity, finish, and whether you need brackets:

• #16100 — 25K Gloss Black (Rails + Brackets) — $169.95
• #16104 — 25K Gloss Black (Rails Only) — $124.95
• #16200 — 25K Carbide Black (Rails + Brackets) — $179.95
• #16204 — 25K Carbide Black (Rails Only) — $124.95
• #16205 — 40K Teridium (Rails Only (80K PSI Alloy)) — $244.95 ⬅ THIS UNIT

Custom Under-Bed Brackets Needed?

These rails are designed to work with CURT custom under-bed brackets. Vehicle-specific bracket options in the catalog:

• #16430 — Ram 2500, 3500
• #16911 — Ford F-150

Cross-Reference Part Numbers

• Part Number: 16205
• UPC: 612314162055

⚠️ Professional Installation Recommended

Installation involves under-bed bracket mounting to the truck frame (some drilling may be required), then bolting the base rails through the truck bed to the brackets. Installation should be performed by a qualified installer unless you have prior experience with truck bed rail installation. Reference the CURT installation instructions for your specific bracket + rail combination.

Limited Lifetime Warranty

Backed by CURT's limited lifetime warranty (one-year finish, one-year parts).

Genuine CURT OEM

Key Features

• Genuine CURT OEM Universal 5th Wheel Base Rails
• Part Number: 16205
• UPC: 612314162055
• ⭐ Industry-standard mounting — accepts CURT and most competitor 5th wheel hitches
• Gross trailer weight capacity: 40,000 lb
• ⭐ 80,000-PSI alloy steel — heavy-duty construction
• Finish: Teridium powder coat over rust-resistant liquid A-coat
• Kit type: Rails Only (80K PSI Alloy)
• Includes: two heavy-duty 80,000-PSI alloy steel base rails (brackets sold separately)
• Tested to SAE J2638 safety standards
• Backed by limited lifetime warranty (one-year finish, one-year parts)

Specifications

• Brand: CURT
• Part Number: 16205
• UPC: 612314162055
• Type: 5th Wheel Universal Base Rails
• Kit Type: Rails Only (80K PSI Alloy)
• Kit Includes: two heavy-duty 80,000-PSI alloy steel base rails (brackets sold separately)
• Gross Trailer Weight Capacity: 40,000 lb
• Construction: 80,000-PSI alloy steel
• Finish: Teridium powder coat over liquid A-coat
• Mounting Pattern: Industry-standard (accepts CURT + most competitor 5th wheel hitches)
• Safety Standard: SAE J2638 tested
• Warranty: Limited lifetime (one-year finish, one-year parts)