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SKU:
NLT1Q01938
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VW Audi 1.8T Crankcase Breather Hose Valve Kit | Jetta Golf Passat A4 TT
$81.99
In Stock
$81.99
Sale price
$81.99
Regular price
This aftermarket crankcase breather hose and valve kit services compatible Volkswagen and Audi 1.8T engine applications with the matching early-style breather layout.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Volkswagen Jetta 1.8T (1999-2003) with matching breather layout
- Volkswagen Golf and GTI 1.8T with matching breather layout
- Volkswagen Passat 1.8T with matching breather layout
- Volkswagen Bora 1.8T with matching breather layout
- Audi A3 1.8T with matching breather layout
- Audi A4 1.8T with matching breather layout
- Audi A6 1.8T with matching breather layout
- Audi TT 1.8T with matching breather layout
Product Overview
The 1.8T breather network lives in heat and oil vapor, so its plastic pipes and rubber junctions often become brittle, split, or collapse. A failed network can show up as a lean code, rough idle, oil smell, whistle, excessive crankcase pressure, or multiple small leaks rather than one obvious break.
This is a system repair, not a universal 1.8T kit. Lay the new pieces beside the engine and compare the pressure-regulating valve, suction-pump connections, hose branches, and engine code before removing the old assembly.
This is a high-quality aftermarket replacement or service part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Renews multiple age-prone crankcase ventilation hoses and valves together
- Helps restore controlled crankcase flow when leaks are confirmed
- Reduces the need to splice isolated brittle sections
- Aftermarket service solution for matching 1.8T breather arrangements
Replaces Part Numbers
- 058133753D
- 06B103221P
- 06A129101D
- 058133785B
- 06A103213F
- 06A103221AF
- 06A103247
- 035103245G
Common Uses
- Repairing lean codes and rough idle caused by breather leaks
- Correcting oil vapor, whistling, or excess crankcase pressure
- Preventive renewal while the intake area is already open for service
Technical Specifications
- Product Type: Crankcase ventilation hose and valve kit
- Engine Family: Volkswagen and Audi 1.8T
- System: PCV and crankcase breather network
- Replacement Type: Aftermarket
Installation & Fitment
- Identify the engine code and photograph the existing hose network
- Warm brittle connections carefully and remove them without dropping fragments into openings
- Inspect the suction pump, check valves, and intake fittings beyond the supplied pieces
- Smoke-test the intake and crankcase system after assembly
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names and year ranges alone may not guarantee fitment. Always compare the original component, reference number, dimensions, connectors, engine or vehicle identification, and installed configuration before purchase.
Frequently Asked Questions
Q: Can a breather leak trigger a lean fault? A: Yes. Split hoses can introduce unmetered air and alter crankcase ventilation.
Q: Does this fit every 1.8T engine? A: No. Several layouts exist; match the engine code, reference numbers, and hose routing.
Q: Why replace several hoses together? A: When one heat-aged section fails, neighboring molded pieces are often similarly brittle.
Q: How should final fitment be confirmed? A: Match the original component and every listed identifier and physical detail; contact Northline Parts with the model, serial number, VIN, engine code, or clear photos when additional help is needed.
Part Summary
keywords: VW 1.8T breather hose kit, Audi 1.8T PCV repair, Jetta crankcase ventilation leak, Passat breather valve replacement, 1.8T lean code hose kit
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.