Eliminate axle hop, restore trailing alignment, and simplify your shop maintenance with the ATRO PL1047 Premium Polyurethane Torque Rod Bushing. Proudly Made in the USA, this heavy-duty suspension bushing is specifically engineered to replace failing or hardened rubber bushings on Chalmers 600, 800, and 1000 Series truck suspensions.
What makes the PL1047 a favorite among fleet mechanics is its innovative 2-piece split bushing design. Traditional one-piece torque rod bushings require immense hydraulic press force to install, often resulting in skewed seating or damaged rod eyes. ATRO’s two-piece layout slides easily into the torque rod eye from both sides, dramatically reducing installation time and eliminating the need for specialized pressing equipment.
Once installed, ATRO's proprietary high-durometer polyurethane compound handles punishing multi-axis torque loads without taking a permanent compression set. It is 100% immune to oil saturation, under-chassis grease, road salt, and harsh winter de-icing chemicals that quickly rot and dissolve standard rubber components.
Fast 2-Piece Installation: Split-bushing design slips directly into the torque rod eye from both sides, easing workshop installation compared to standard 1-piece layouts.
Engineered Polyurethane Durability: Outlasts factory rubber by resisting dry rot, grease chemical saturation, and high-load compression tearing.
Restores Axle Alignment: Minimizes excessive twist and play within the torque rod assembly to keep your drive axles perfectly tracking square.
Proudly Made in the USA: Manufactured to precise heavy-duty commercial vehicle tolerances for long-haul fleet dependability.
| Specification | Details |
|---|---|
| Manufacturer | ATRO Engineered Systems |
| ATRO Part Number | PL1047 |
| Industry Cross Ref | 321-273U / 321-273 (Exact Cross) |
| UPC Code | 751354029864 |
| Material Composition | Premium Heavy-Duty Polyurethane |
| Bushing Type | Torque Rod Bushing (2-Piece Design) |
| Bushing Length | 1-15/16" |
| Inside Diameter (ID) | 2 7/16" |
| Outside Diameter — Large | 3 5/8" |
| Outside Diameter — Small | 3 1/4" |
| Country of Manufacture | United States (USA) |
| Category | Suspension / Torque Rod Components |
| Quantity Per Vehicle | Up to 32 (Depending on suspension layout) |
| Shipping Weight | 0.375 lbs |
Tech Note: This is a 2-piece split bushing designed for fast install. For the companion 1-piece alternative version of this bushing, please look up ATRO part number TH19-22128.
This premium poly torque rod bushing is engineered specifically for standard outside diameter (OD) configurations on the following heavy-duty truck platforms:
Chalmers Truck Suspension: 600 Series, 800 Series, and 1000 Series Suspension Networks.
This premium polyurethane component serves as a direct performance replacement or interchange for the following OEM and aftermarket part numbers:
Dayton Parts: 321-273U, 321-273 (Exact Direct Cross Match)
Chalmers: 22128, 22128CS1
Gaff: GAFF18919 (Near Cross Match)
RoadForce: RF22128CS1
Automann: TRB6328, TRB6328UB
Euclid: E-4677A, E-8701, E-7427
Meritor: R304677A, R307427 (Near Cross), R308701 (Near Cross)
Dyco: D187
Flagg: CHA22UB, CHA22
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