The 028 145 278E is a Meyle German-engineered accessory belt tensioner pulley for Volkswagen Mk3 and B4 platform vehicles. Also known as a relay roller, this pulley mounts on the tensioner assembly and delivers a stable running surface with a precision sealed bearing — maintaining correct belt alignment and quiet accessory drive operation without modifications.
The 06J 903 133D is a Mubea OEM-quality accessory drive belt tensioner for Volkswagen and Audi models powered by the 2.0L TSI EA888 engine (CBFA/CCTA) — including the GTI, Jetta GLI, Passat, CC, Eos, Tiguan, Beetle Turbo, Audi A3, TT, and Q3. This tensioner maintains correct serpentine belt tension through a precision spring mechanism and sealed pulley bearing, restoring quiet, reliable accessory drive performance with no modifications required.
Eliminates wear on lower dogbone mount puck, ensures even compression of upper and lower dogbone mount pucks, and eliminates bending moment in dogbone arm.
The Liqui Moly LM20038 Hydraulic System Oil is a fully synthetic, high-performance fluid engineered for vehicles equipped with central hydraulic systems, including level control, hydropneumatic suspension, steering circuits, and hydraulic shock absorber systems. It delivers outstanding thermal stability, corrosion protection, and reliable low-temperature performance year-round.
The 06B 121 132E coolant flange by URO Parts is an OE-style direct-fit replacement for the Audi A4 B6 1.8T (2002–2006). Engineered to meet or exceed OEM specifications with the O-ring included for a complete, leak-free installation.
The 5Q0 121 087B is the genuine OE T-piece / Y-piece quick-release coolant fitting used on select 1.8T EA888 Gen 3 MQB-platform vehicles from Volkswagen and Audi — including the Golf, Passat, A3, and TT/TTS. Supplied as part of the upper hose assembly, this fitting serves as the sealed junction point within the coolant hose routing circuit. As an OE part, it matches factory dimensions, port geometry, and quick-release coupling specifications exactly. Always confirm fitment by VIN before ordering.
The 5Q0 122 291AB is the genuine OE quick-disconnect coolant flange / lower hose adapter engineered for EA888 Gen 3 1.8T and 2.0T MQB-platform vehicles from Volkswagen and Audi. Positioned in the lower cooling circuit, this fitting provides a sealed quick-release junction between coolant hoses and the engine or radiator assembly, maintaining leak-free coolant routing under sustained pressure and thermal cycling. Cross-references 5QD 122 291AE and 1K0 122 291CP. Always confirm fitment by VIN before ordering.
The 5Q0 122 291AC is the OE right-side coolant bypass line adapter (T-piece) used on select 2018–2023 Volkswagen and Audi MQB-platform vehicles equipped with a 2.0L engine and manual transmission. Positioned on the passenger side of the cooling circuit, it serves as the outlet adapter for the cooling system bypass line — a distinct application from the central water pump connectors used on the same platform. Always confirm fitment by VIN before ordering, as this part is transmission-specific.
The 5Q0 122 291BL is the genuine OE upper radiator coolant hose adapter engineered specifically for 2.0T EA888 Evo4 high-performance MQB-platform vehicles from Volkswagen and Audi — including the Golf R, Arteon, Golf VIII R, S3, and TTS Quattro. Mounted in the upper cooling circuit, this 4-port connector serves as the sealed junction between the upper coolant hose and the radiator assembly under full system pressure. This part is engine-code specific to Evo4 variants (CYFB, DJJA, DLRA, CJXB/CJXF) and does not interchange with standard 2.0T applications. Always confirm fitment by VIN before ordering.
The 5Q0 122 291CT is the OE upper radiator coolant hose adapter, positioned at the water pump housing on select Volkswagen and Audi MQB-platform vehicles. Designed for the VW Golf R (2015–2019) and Audi A3/S3/TT/TTS 2.0T models, this connector provides the sealed junction between the upper coolant hose and the water pump outlet. The part ships with an integrated C-clip and seal and is a single-use component — always install with new sealing hardware included in the kit. Supersedes 5Q0 122 291BF.
The 5Q0 122 291DA is the OE 3-port coolant hose connector located at the water pump on select Volkswagen and Audi MQB-platform vehicles. It serves as the central junction point between the coolant hoses routing to the radiator, heater circuit, and engine — covering a wide range of 1.8T and 2.0T turbocharged applications from Golf and GTI to Audi A3, TT, and Q3. This part is superseded by 5Q0 122 291AL, which is the current OE replacement. Always confirm fitment by VIN before ordering.
The 6Q0 122 291F is a Febi Bilstein OE-quality lower radiator coolant hose flange for Volkswagen and Audi Mk4-platform models — including the Golf, Jetta, Beetle, Audi A3, and TT across 1.8T, 2.0L, 1.9 TDI, and 2.8 VR6 applications (1998–2010). This precision-molded flange provides the sealed junction for the lower coolant hose and features an integrated coolant drain port, making it a direct-fit replacement to restore leak-free cooling system operation with no modifications required.
