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(888) 312-8812 Login SignupThe Peterbilt Spring Assembly assists with controlled lifting and holding of bunk panels inside sleeper compartments. As the panel is raised, internal gas pressure counters gravity, easing the motion and reducing effort. The spring continues applying force through the travel range, helping the bunk remain open without manual support. During closure, resistance moderates the downward movement, preventing abrupt drops. This interaction makes access to storage or bedding areas smoother during routine use. Installed as part of the bunk structure, the Peterbilt 29-04281 supports repeated opening and closing cycles tied to daily sleeper access.
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