Carburetor Spring for KTM 50 SX, Husqvarna TC 50 - 45131518000

This is an OEM carburetor spring (part number 45131518000) used in the carburetor assembly of KTM, Husqvarna, and GASGAS motorcycles. It provides the necessary tension for proper throttle valve operation and fuel mixture control. This genuine replacement ensures reliable performance in off-road and mini bike applications.

Compatible with KTM 50 SX (2017-2026 including Factory Edition, Mini, SXS, Pro Senior LC, Junior), Husqvarna TC 50 (2018-2026 including Mini), GASGAS MC 50 (2022-2026), plus older models like KTM 125 Supermoto, 400/620/640 LC4 series (1994-2001), 620 Duke/EGS/SXC/Sup-Comp (1996-1999), and many EU/US variants from 1994-2026. Fits specific 50cc mini bikes and larger LC4 enduro/supermoto models. Direct OEM replacement for listed carbureted engines.

Made to exact factory specifications for durability and consistent spring rate. Essential for maintaining precise carburetor response during acceleration and idling. Ideal for riders restoring classic LC4 bikes or maintaining modern mini motocross machines.

Installation is straightforward during carburetor disassembly; check jetting as per manufacturer warnings before reassembly. Use proper tools to avoid damaging the throttle valve or slide.

Check compatibility list below to see if this part fits your motorcycle model.