Views: 0 Author: Site Editor Publish Time: 2025-12-25 Origin: Site
Whether you are a maintenance novice or an experienced mechanic, mastering the installation location and operation skills of the crankcase breather hose can significantly improve maintenance efficiency and reduce failure risks. This article covers mainstream passenger and commercial vehicle models, detailing the installation specifics and compatible interfaces of all Standards Rubber crankcase breather hose products, paired with a tool list and step-by-step guide, while recommending core matching accessories to help you complete replacement or maintenance in one stop.
For quick reference, below are installation details of Standards Rubber’s popular crankcase breather hose products, covering mainstream brands such as Peugeot, Citroen, MAN, and Mercedes Benz:
Product Model | Compatible Brands/Vehicles | Installation Path | Compatible Interface Specifications | Application Scenarios |
Peugeot/Citroen (1007/206 SW/C2/C3, etc.) | Valve Cover → Intake Manifold | OEM 1192WZ standard interface | Passenger car daily maintenance, aftermarket replacement | |
Peugeot 206/207 1.4, Citroen C2 1.4 | Valve Cover → Side of Exhaust Manifold | 2580008B/918979/1574C1 multi-interface adaptation | Passenger car exhaust system supporting maintenance | |
Mercedes Benz W166 Series | Crankcase → Upper Part of Intake Manifold | A1665000491 original equipment interface | Luxury commercial vehicle precise replacement | |
MAN TGS/TGA/TGX | Side of Crankcase → Exhaust Aftertreatment Device | Commercial vehicle-specific large-diameter interface | Long-term use in heavy-duty trucks | |
Porsche Macan 95B | Rear Valve Cover of Engine → Intake Manifold | 95B122447F dedicated interface | High-end replacement for luxury passenger cars |
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1. Essential Tool List
• Basic tools: Flathead screwdriver (for removing interface clips), torque wrench (for fixing quick connectors), cleaning cloth (for cleaning interfaces);
• Auxiliary tools: Soapy water (for leak testing), clip replacements (spare, to avoid damage to original clips).
2. General Installation Steps
1. Remove the old hose: Gently pry open the interface clips with a screwdriver and smoothly pull out the old breather hose (be careful with force to avoid damaging the engine interface);
2. Clean the interfaces: Wipe the surfaces of the crankcase and intake manifold/exhaust system interfaces with a cleaning cloth to remove oil and impurities, ensuring sealing performance;
3. Install the new hose: Insert one end of Standards Rubber’s new breather hose into the crankcase interface, accurately align the other end with the intake manifold/exhaust system interface, and press firmly by hand until the clip is fixed;
4. Fix the connector: Install the matching quick connector at the interface and tighten it to the appropriate torque with a torque wrench (avoid over-tightening to damage the interface or under-tightening leading to air leaks);
5. Leak test: Apply soapy water evenly at the interfaces, start the engine and let it idle for 3-5 minutes—no bubbles indicate qualified installation.
When installing the crankcase breather hose, it is recommended to check and replace related accessories simultaneously to effectively extend engine service life. Below are Standards Rubber’s core recommendations:
Quick Connectors: Series 931 (such as 931-50-014) are precisely compatible with all breather hose products, featuring strong sealing performance, which can withstand engine vibration and high temperatures, preventing the hose from falling off during driving;
Silicone Hoses: If the installation space is narrow, they can be used as adapters or extensions. Their high-temperature resistance and flexibility can avoid hose bending and assist in regulating engine temperature;
Fuel Lines:Recommended Automotive Flexible Rubber Fuel Pipe, suitable for Iveco, Ford, Mercedes Benz and other models, which can be replaced synchronously with the breather hose to ensure smooth fuel delivery;
Leak off Pipes:Focus on matching for commercial vehicle installation. Diesel injector spill rail return leak off pipes can work synergistically with the breather hose to maintain stable fuel system pressure.
Porsche Macan 95B: Compatible with 95B122447F Engine Breather Line, the installation location is relatively hidden (rear of the engine). It is necessary to remove some decorative covers first, and reserve heat dissipation space after installation to avoid contact friction with the air compressor pipe;
Mercedes Benz W166 Series: A1665000491 Vent Line needs to be aligned with the dedicated interface on the upper part of the intake manifold, and original equipment specification quick connectors must be used to ensure interface matching without air leaks;
MAN TGS Trucks: The 51018025573 product has a long installation path and needs to be fixed on the engine bracket in sections with clips. Pair with rubber hoses to protect the interface and prevent damage under heavy-load conditions.
Standards Rubber’s crankcase breather hoses are all designed according to OEM standards, with installation positions precisely adapted to original vehicles.Whether you need to maintain any vehicle model, you can find a suitable model in our product range. For personalized installation guidance, feel free to contact customer service for professional support.
