Maintain precise wheel bearing end-play with the Dayton 06-222 Spindle Nut Washer. Specifically designed for Rockwell (Meritor) RN, TN, and TKN trailer axles with manual adjustment configurations, this lock ring provides the essential secondary locking mechanism for your hub assembly. Precision-manufactured to match OE standards, it ensures your inner spindle nut remains securely indexed under the most demanding road conditions.
Direct OE Replacement: Engineered to match the fit and function of the factory-original part for specified Rockwell trailer axles.
Secure Locking Design: Features the industry-standard "holes" pattern, designed to engage with a dowel-pin spindle nut for maximum security.
Heavy-Duty Construction: Forged from high-grade steel to resist compression and wear, maintaining its structural integrity over long service intervals.
Reliable Performance: Backed by Dayton Parts' century of automotive expertise, ensuring trustworthy quality for heavy-duty fleet operations.
| Feature | Details |
| Part Number | 06-222 |
| Application | Rockwell RN, TN, TKN (Manual Adjust) |
| Axle Type | Trailer (Tapered Spindle) |
| Washer Type | Lock Rings (with holes) |
| Inner Diameter (ID) | 2.37 in |
| Outer Diameter (OD) | 3.81 in |
| Height/Thickness | 0.38 in |
| Weight | 0.40 lbs |
This washer is a direct replacement for the following industry part numbers:
Meritor: 1229T1996, R001252
Dana/Spicer: 12397, 12-397
Euclid: E1252
PACCAR: L1026
VMRS: 011001017
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
