INA 5291469500 Belt & Tensioner Kit For VW/Audi/Škoda EA888 Gen3B 2.0 TFSI — 6PK1139 Belt + 06N903133 Tensioner, Complete OEM-Equivalent Accessory Drive Solution

The INA 5291469500 Belt & Tensioner Kit is a complete accessory drive solution for Volkswagen Group EA888 Gen3B 2.0 TFSI engines. It bundles the 6PK1139 ribbed belt (OEM 06L903137J) and the 06N903133 belt tensioner in a single, matched package — engineered for professional workshops and distributors who need a reliable one-box repair for the accessory belt system.

The kit is designed for Audi A4 B9, A5 F5, A6 C8, A7 4K, Q5 FY, Volkswagen Teramont, Touareg III, and Škoda applications equipped with the EA888 Gen3B engine family. The belt and tensioner work as a matched system: the 6PK1139 belt is a 6-rib, 21 mm wide, 1139 mm long poly-V belt, while the 06N903133 tensioner is an aluminum die-cast unit with a 55.2 mm outer diameter and 25.8 mm width, designed to maintain correct belt tension across the engine's operating range.

INA is a Schaeffler Group brand and a factory supplier to Volkswagen AG for tensioners and idler pulleys, making this kit an OEM-quality alternative to sourcing the belt and tensioner separately.

• Kit Contents Verified: INA 5291469500 is listed as a belt kit containing the 06N903133 tensioner and a 6PK1139 belt equivalent to 06L903137J.
• Belt Dimensions Verified: 6 ribs, 21 mm width, 1139 mm length — confirmed by TecDoc-certified belt data for 06L903137J (6PK1139).
• Tensioner Dimensions Verified: Outer diameter 55.2 mm, width 25.8 mm — confirmed by INA 534091010 (the INA tensioner number corresponding to 06N903133) across multiple independent parts catalogs.
• Tensioner Material Verified: Aluminum die-cast — confirmed by supplier listing for the 06N903133 tensioner family.
• Engine Coverage Verified: Confirmed for EA888 Gen3B 2.0 TFSI with engine codes including DKNA, DDWB, DLHA, DKUA, DKUB, DKYA, DKWA, DKWB, DKWC, DTAA, DTAB, DLHB, DLHC, DMTA, DMTC, and many additional Gen3B variants.
• INA OE Supplier Status Verified: INA is a series supplier of tensioners and idler pulleys to Volkswagen AG, with QR authenticity verification on the packaging.
• Warranty & Certification Verified: TecDoc certification and IATF 16949 for the 06L903137J belt platform, with a 24-month warranty reference — supplier-dependent for the kit as a whole.

• Squealing or chirping from the accessory drive: A glazed or worn belt, or a tensioner that can no longer maintain load, produces a high-pitched squeal — especially at cold start or under electrical load.
• Belt cracking or rib loss: Visible cracks across the belt ribs, missing rib sections, or frayed edges indicate the belt is beyond service life and at risk of sudden failure.
• Tensioner pulley noise (grinding/rumble): A worn tensioner bearing produces a continuous grinding or rumbling sound that changes with engine speed.
• Tensioner arm not holding position: The tensioner should maintain steady contact with the belt. A weak or seized tensioner allows belt slip, which can cascade into loss of alternator charging, power steering assist, or A/C function.
• Belt misalignment or walking off pulleys: A worn tensioner or idler can cause the belt to track off-center, damaging the belt edge and adjacent components.

Each kit is inspected for contents and dimensional conformity before dispatch. Because this kit is supplied in INA packaging, the QR authenticity mark on the box can be used by the end customer to verify the part against INA's system.

1. Record the belt routing: Before removal, sketch or photograph the belt path around all pulleys, including the crankshaft, alternator, A/C compressor, and tensioner.
2. Release tensioner: Use the correct tool to rotate the tensioner arm to release belt tension. Do not pry against the tensioner body or pulley face.
3. Remove the old belt: Slide the belt off the pulleys. Inspect all pulleys for rust, debris, or sharp edges that could damage the new belt.
4. Inspect the tensioner mounting: Check the tensioner mounting surface and bolt for damage. A bent or stripped mounting point will cause misalignment and belt tracking issues.
5. Install the new tensioner (if replacing as a kit): Torque the tensioner mounting bolt to the workshop manual specification. Confirm the tensioner arm moves freely through its full range.
6. Install the new belt: Route the 6PK1139 belt according to the recorded diagram. Ensure the belt is fully seated in every ribbed pulley groove.
7. Release the tensioner to apply load: Slowly release the tensioner tool and confirm the belt is tensioned with no slack on the drive side.
8. Verify alignment: With the engine off, rotate the crankshaft two full turns and re-check belt tracking on each pulley. The belt should run centered, not walking off either edge.
9. Run and listen: Start the engine and listen for squeal or chirp. A brief settling noise is normal; persistent squeal indicates incorrect tension or a contaminated pulley.

• Inspect the accessory belt at every oil change or every 20,000–30,000 km — check for cracks, rib wear, and glazing.
• Replace the belt and tensioner as a kit at the first sign of noise, cracking, or tensioner weakness — matched replacement prevents repeat labor.
• Do not apply belt dressing — modern EPDM belts are not compatible with traditional dressings, which can cause slip and noise.
• Check pulley alignment if a replacement belt develops edge wear or tracking issues.

• Standard packing: INA branded box with QR authenticity mark (where supplied in INA packaging); neutral export carton available for bulk orders.
• Package contents: 1 × 6PK1139 Belt + 1 × 06N903133 Tensioner.
• Set options: Complete kit (belt + tensioner) / belt only / tensioner only — specify at inquiry.
• Suitable for: VAG specialist workshops, accessory drive repair shops, fleet maintenance departments (A4/A5/A6/Q5/Teramont fleets), spare parts distributors, and export wholesalers.
• Related parts available: Idler pulleys, overrunning alternator pulleys (OAP), and additional EA888 Gen3B accessory drive components.