| Product Line | Suspension |
| Category Name | Chassis & Suspension |
| Part Type | Center Bushing |
| Alternate Part Name | Rubber Center Bushuing, Center Bushing, Rubber Center Bushing Welded End Plug |
| OEM Part Number | 6664000 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Mounting Position | Rear Suspension |
| Material | Vulcanized Rubber, Carbon Steel. |
| Bushing Length | 12 in. |
| Bushing Outside Diameter (O.D.) | 3-5/8 in. |
| Small Outside Diameter | 2-3/4 in. |
| Package Length | 5.00 in. |
| Package Width | 12.00 in. |
| Package Height | 6.00 in. |
| Net Weight | 13.32 lb. |
| Cross References | 2325972, 321-117, 321117, 498403, 6664, 6664-000, 6664-000L, 6664000, 6664000L, 750001, 965080R1, 965080R91, E-1338, E1338, M1974HE, R301338, TWAA5872A |
| Intended Application | - Compatible with Hendrickson 340 Series Tandem Suspensions, including AR 340, RS 340, RT/RTE 340, RT2/RTE2 340, RU/RUE/U/UE 340, U2/UE2 340, SR 340, and V4 340 configurations, ensuring proper fitment across a wide range of Hendrickson tandem suspension platforms.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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