STIHL Flat Spring - 1129 162 7800

Direct OEM replacement flat spring engineered to restore precise return tension and reliable throttle recovery in STIHL chainsaw controls.

Key Features

• Precision-stamped carbon steel construction for consistent spring rate and fatigue resistance under repeated compression cycles
• OEM-specified geometry ensures correct engagement with throttle linkages, trigger returns, and decompression assemblies
• Surface-treated finish provides corrosion resistance in humid, resin-rich, and abrasive operating environments
• Drop-in replacement architecture aligns directly with factory mounting tabs and pivot pins without modification

Product Details

• OEM Part Number: 1129 162 7800
• Manufacturer: STIHL
• Component Classification: Return/Compression Flat Spring
• Base Material: Tempered alloy steel
• Primary Application: Handheld power tool speed-control and safety linkage restoration

Compatibility

This spring installs across established STIHL MS series platforms that utilize identical control housing layouts. Confirm existing spring orientation and latch placement prior to installation.

• Platform Families: STIHL MS 170, MS 180, MS 200, MS 210, MS 230, MS 250, MS 270
• Professional Series: STIHL MS 310, MS 311, MS 361
• System Integration: Throttle trigger return, carburetor governor linkage, and automatic chain brake decompression mechanisms