Engine Components
Engine Air Intake Hose
Audi
4E0-129-617-S
4.2L, 2007-10. 4.2L 2004-06. front. Intake duct. 6.0L. 5.2L.
Engine Coolant Overflow Hose
Audi
420-121-107-C
Vent hose. 4.2L auto trans rear. 4.2L, manual trans.
Engine Coolant Overflow Hose
Audi
4H0-121-107-R
Vent hose. 4.0L.
$10.14
MSRP $17.48
Save $7.34
42% Off 
Engine Coolant Overflow Hose
Audi
058-121-058-C
4 cylinder, to oil cooler, upper.
$55.32
MSRP $79.48
Save $24.16
30.4% Off 
Engine Coolant Pipe O-Ring
Audi
03H-121-041
O-Ring. To Adapter. 3.6L, main. 4.2L, supply, upper.
$2.69
MSRP $4.63
Save $1.94
41.9% Off 
Engine Coolant Overflow Hose
Audi
4G0-122-109-AF
Reservoir hose. 2012-15, return. 2016-18, front. Rear hose. Gas, return. 3.0L gas front. 3.0L diesel, supply.
$38.28
MSRP $55.00
Save $16.72
30.4% Off 
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