At a Glance
- SKU: CTA-400-Z-KIT

RAM adjustable channel mount trailer coupler kit built around the CTA-400-Z coupler, paired with the 5/8" Grade 8 mounting hardware needed for the coupler-to-channel installation. Adjustable channel bracket sold separately.
The CTA-400-Z-KIT is a complete R&P-curated RAM adjustable channel mount coupler kit for customers who need the CTA-400-Z coupler plus the proper 5/8" mounting hardware in one package. The kit includes the zinc-plated RAM 2-5/16" adjustable channel mount coupler, two Grade 8 mounting bolts, four thru-hardened washers, and two Grade 8 nylon insert lock nuts. The adjustable channel bracket is not included.
Adjustable channel couplers often get ordered without the correct mounting hardware. This kit solves that problem by packaging the RAM coupler with the matching Grade 8 bolt, washer, and lock nut setup for the coupler mounting points.
Compatibility: Built for adjustable channel mount trailer coupler applications using the RAM CTA-400-Z coupler and 5/8" mounting hardware.
Vehicle / System Fit: Intended for trailers using adjustable channel-style coupler mounting where the coupler, ball size, bolt size, and bracket dimensions match.
Installation Notes: Confirm your adjustable channel bracket, hole spacing, mounting width, coupler rating requirements, ball size, and hardware fit before installation.
Performance Insight: Including the hardware helps keep the coupler installation consistent by matching the 5/8" Grade 8 bolt, washer, and nylon lock nut set to the coupler mounting points.
Selling Brand: R&P Carriages curated kit using RAM coupler CTA-400-Z and listed mounting hardware.
Application Reference: RAM and CTA-400-Z describe the included coupler component. Fitment depends on your trailer channel bracket, ball size, mounting holes, and installation requirements.
What This Means: This listing is for the CTA-400-Z-KIT, which includes one RAM CTA-400-Z coupler plus the listed 5/8" mounting hardware. It is not a channel bracket kit.
Before Ordering: Verify bracket compatibility, coupler rating requirements, 2-5/16" ball size, 5/8" mounting hardware needs, and included components before installation.
When replacing an adjustable coupler, do not assume the old hardware is reusable. Rust, thread wear, stretched bolts, damaged nuts, or mismatched washers can compromise the installation. This kit includes fresh mounting hardware for the coupler connection.
Includes the RAM CTA-400-Z coupler plus the listed Grade 8 mounting bolts, washers, and nylon insert lock nuts.
Coupler is designed for 2-5/16" trailer ball applications where the trailer setup matches the coupler and mounting configuration.
RAM CTA-400-Z coupler is listed with a zinc-plated finish for corrosion resistance in normal trailer service conditions.
Designed for adjustable channel mount installations; adjustable channel bracket is sold separately.
| Specification | Detail |
|---|---|
| Kit SKU | CTA-400-Z-KIT |
| Base Coupler | RAM CTA-400-Z |
| Product Type | Adjustable channel mount trailer coupler kit with hardware |
| Ball Size | 2-5/16" |
| Mount Style | Adjustable channel mount, 2-bolt mount |
| Finish | Zinc plated coupler; yellow zinc mounting hardware |
| Hardware Size | 5/8"-11 mounting hardware |
| Channel Bracket | Sold separately |
| Category | Details |
|---|---|
| Vehicle / System | Trailer adjustable channel coupler system |
| Primary Fit | Trailer applications requiring a RAM CTA-400-Z adjustable channel mount coupler with 2-5/16" ball size |
| Hardware Fit | Includes 5/8"-11 Grade 8 mounting bolts, washers, and nylon insert lock nuts |
| Notes | Verify channel bracket compatibility, ball size, coupler rating requirement, bolt fit, and installation requirements before ordering. Adjustable channel bracket is not included. |
| Quantity | Item |
|---|---|
| 1 | RAM CTA-400-Z adjustable channel mount trailer coupler, 2-5/16" ball, zinc plated |
| 2 | 5/8"-11 x 4-3/4" Grade 8 yellow zinc finish hex cap screws / bolts |
| 4 | 5/8" x 1.312" OD thru-hardened yellow zinc finish steel washers |
| 2 | 5/8"-11 Grade 8 yellow zinc finish nylon insert lock nuts |
| Not included | Adjustable channel bracket |
Selected products are added together. Review the cart and verify kit contents to prevent duplicates. Prices and discounts are determined at checkout.
Have your SKU or manufacturer part number, photos of the original part and mounting, and any critical measurements ready. Capacity, voltage, or bolt pattern can help too.
815-357-3292 · 270 E Jackson St · Seneca, IL 61360
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