This Spindle Nut Retainer is engineered for 2,000–8,000 lb trailer axles with 1″ D-shaped spindles, offering a modern alternative to cotter pin-based systems. It is compatible with EZ Lube configurations and features a cage-style retainer that enables precise bearing adjustment using a jam spindle nut. Built from high-strength steel, this component ensures dependable performance and enhanced service life under heavy-duty loads.
Detailed Information:
Application
EZ Lube Trailer Axles
Spindle Size
1″ D-Shaped Spindle
Outer Diameter
1.5″
Axle Capacity
2,000 – 8,000 lbs
Material
Steel
Fitting:
Fits EZ Lube axle configurations using 1" D-shaped spindles. Designed to replace traditional cotter pin retainers with a jam nut and cage retainer system for easier and more accurate bearing preload adjustment.
Features:
Precision Adjustment: Cage-style retainer allows fine-tuning of bearing preload without a cotter pin.
Modern Design: Works with jam spindle nuts for smoother setup and adjustment.
Heavy-Duty Build: Constructed from high-strength steel for dependable performance.
Time-Saving: Eliminates cotter pin installation and removal during maintenance.
Wide Compatibility: Suitable for a broad range of trailer axles from 2K to 8K capacity.
Interchangeable Part Numbers:
Dexter 006-190-00
006-190
006-190G
112353916
Product Overview:
The Spindle Nut Retainer – For 2K–8K Axles (HD) is a robust and efficient solution for modern trailer axle systems using 1" D-shaped spindles. Its cotter pin-free design streamlines the bearing adjustment process, while the steel cage construction provides long-term durability. Ideal for trailers equipped with EZ Lube spindles, this retainer enhances reliability and simplifies maintenance procedures.
We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.
*Some exclusions may apply
Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*
*Proof of purchase required
Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
Replaced cotter pins on my 2012 utility trailer. This retainer gives a cleaner, safer lock. No sharp edges, no bending pins. Bearings run cooler with proper preload. Feels like a factory update.
G
Grzegorz Nowak
Exactly as Described Online
Compared the part to the diagram on the site—1.5" OD, 1" D-spindle fit, cage shape matches. No surprises. Bolted right on. Glad I switched from cotter pins. Much more professional setup now.
E
Elvyn Scannell
Minor Finish Imperfection, But Works Great
Got one with a small rust spot on the edge—probably from storage—but it cleaned up with a wire brush. Functionally perfect. Holds the nut tight and fits like factory. Still a 5-star part for the price.
A
Allard Roisen
Durable and Reusable
Unlike cotter pins that get destroyed on removal, this retainer is reusable and doesn’t stress the spindle. Steel is thick and well-finished. Makes annual bearing service faster and cleaner. A must-have for modern trailers.
H
Harald Golding
Small Part, Big Difference
Makes bearing adjustment so much more precise. The cage allows micro-tuning of preload before locking the jam nut. No guesswork. This is how modern trailers should be built.
