Restore precise steering control, eliminate front-end suspension wander, and protect your commercial fleet investments with the ATRO SK88-10200 Premium Polyurethane Spring Eye Bushing Kit. Proudly Made in the USA, this heavy-duty suspension service kit is engineered as an exact high-performance upgrade for Thomas Built MVP and EF Transit (2nd Design) buses as well as targeted medium-duty commercial truck configurations.
Positioned at the crucial rear of front spring location, leaf spring eye bushings are forced to absorb continuous multi-axis twist, braking torque, and vertical road shocks. Traditional factory rubber bushings quickly dry rot, distort, and take a permanent compression set, leading to rapid axle misalignment, uneven tire wear, and severe leaf spring eye damage.
ATRO’s proprietary high-durometer polyurethane chemistry handles punishing vocational loads without crushing or shifting out of place. It is 100% chemically immune to underhood fluids, power steering oil, chassis grease, and highly corrosive winter road de-icers. This comprehensive kit comes packaged with premium replacement bushings and heavy-duty, high-tensile 6-inch installation hardware to completely refresh one entire leaf spring service position.
Complete Overhaul Solution: Includes high-performance poly bushings, structural grade bolts, matching washers, and high-strength locknuts for a complete out-of-the-box installation.
Engineered Polyurethane Durability: Radially outperforms factory rubber variants by resisting dry rot, cracking, structural deformation, and chemical saturation.
Maintains True Front Alignment: Minimizes horizontal shift and twist within the leaf spring eye assembly to ensure a square tracking steering axle.
Proudly Made in the USA: Manufactured to rigorous commercial vocational tolerances for maximum long-haul fleet longevity and passenger safety.
| Specification | Details |
|---|---|
| Manufacturer | ATRO Engineered Systems |
| ATRO Part Number | SK88-10200 |
| UPC Code | 751354032574 |
| Material Composition | Premium Heavy-Duty Polyurethane / Steel |
| Component Classification | Front Leaf Spring Eye Bushing & Hardware Kit |
| Suspension Installation Position | Rear of Front Spring Eye |
| Bushing Length | 3-1/2" |
| Inside Diameter (ID) | 13/16" |
| Outside Diameter (OD) — Reference | 1-13/16" |
| Quantity Per Vehicle | 2 Kits Required (1 Per Side) |
| Recommended Installation Tool | ATRO PT91000 |
| Country of Manufacture | United States (USA) |
| Shipping Weight | 4.5 lbs |
(2) Premium ATRO SP00-52400 Polyurethane Bushings
(2) High-Tensile Suspension Bolts (6" Length x 3/4" Thread OD)
(2) Structural Steel Washers
(2) High-Strength Matching Locknuts
This premium poly spring eye kit is engineered specifically for standard leaf spring eye dimensions on the following heavy-duty vocational and transit platforms:
Thomas Built Buses: MVP Series & EF Transit (2nd Design Architecture) Bus Networks.
This premium polyurethane component serves as a direct performance replacement or interchange for the following OEM and aftermarket part numbers:
Thomas Built: 61300221, 61370672 (Exact Application Matches)
Dayton Parts: 334-990 (Kit with Bolts), RB-190, RB190
Automann: M5414, MR626, LNC20MM
Flagg: B1473-22, RB190, LNC20MM
Uro: TD190
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