SKU: ALL 54163
UPC: 848238027716
MPN: ALL54163
The Long Return Springs 1pr from ALLSTAR PERFORMANCE are essential throttle control components designed for carburetor and fuel injection linkage systems across street, strip, and competition vehicles. This pair of precision-engineered return springs restores proper throttle blade closure and idle stability when engine vibration or worn linkage components begin to cause hesitation or erratic throttle response. Whether you're diagnosing throttle lag in a classic carbureted engine or replacing fatigued springs in a high-performance fuel system, these springs deliver reliable, repeatable throttle feel.
Each spring in this pair measures 11-1/2 inches in free length and is constructed from durable zinc oxide-coated steel, a finish that resists corrosion and extends service life in engine bay environments. The zinc oxide coating provides a protective barrier against moisture and salt exposure while maintaining consistent spring rate under thermal cycling. The compact 0.85-inch diameter profile allows these springs to fit standard throttle return spring brackets and carburetor mounting bosses without interference, making installation straightforward on most conventional linkage systems.
These replacement springs are ideal for engine builders, restoration shops, and performance enthusiasts who demand consistent throttle response and reliable idle control. Springs weaken over time, reducing tension and allowing the throttle to hang or return slowly—symptoms that compromise drivability and safety. The pair configuration ensures balanced throttle action across dual-linkage carburetors or allows one spring per side in staggered mounting configurations. Installation requires no special tools; simply unhook the worn spring from its mounting bracket and anchor point, then secure the new spring using existing fasteners.
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