HUSQVARNA engine breath tube 450/501 ’12-’16

HUSQVARNA engine breath tube 450/501 ’12-’16

The HUSQVARNA engine breath tube 450/501 ’12-’16 is a crankcase breather hose for specific Husqvarna/KTM 450 and 501 engines from model years 2012–2016, routing crankcase ventilation gases correctly to maintain stable engine operation. It replaces the original hose on compatible engines when the stock line becomes brittle, cracked, or blocked.

Technical specifications

• Part number: 78130087000
• Application: Crankcase breather / engine breath tube
• Engine compatibility: Selected 450/501 engines from 2012–2016
• Fitment type: Direct replacement for the original breather hose

Use and service context

Replace this engine breath tube whenever the original hose shows signs of hardening, oil saturation, kinking, or cracking, or if you observe abnormal crankcase ventilation or oil misting near the breather routing. It is commonly renewed along with other ventilation and fuel hoses during engine refresh or top-end service.

Installation notes

This hose installs as a direct-fit component on the designated engines; verify correct routing and secure with appropriate clamps, following the workshop manual torque and layout guidelines where applicable. No machining is required.