Trunnion 338‑1845 – 4" Shaft × 4" Spring – Fits Mack Rear Heavy‑Duty Suspension freight This wear pad reduces metal-on-metal

This wear pad reduces metal-on-metal contact

OEM Cross References:330-364A

S3500004001

it minimizes vibration

Constructed from durable steel and equipped with adjustable end fittings

Trunnion 338‑1845 – 4" Shaft × 4" Spring – Fits Mack Rear Heavy‑Duty Suspension freight This wear pad reduces metal-on-metalThe Mack Rear Trunnion Assembly (4 diameter) is a heavy duty suspension component designed to support the rear spring beam and manage articulation in tandem axle configurations. This complete assembly is engineered to OEM standards for strength, durability, and longevity in severe duty vocational and fleet applications. OEM Cross References: 3381845, 131604L, M1117, 39QK325, 39QK325M, R303645 Key Features: Application: Mack tandem axle rear suspension