058133753B PCV hose assembly shoppers usually have one of three starting points: an OE number from the original part, a technician's recommendation, or an engine-ventilation concern that still needs diagnosis. The OE reference is useful, but it should be supported by a careful physical comparison. Before ordering, compare the complete hose layout, every branch, formed bends, connection sizes, valve housings, and clamp locations. This guide shows how to evaluate the 058133753B PCV hose assembly for Volkswagen and Audi using verified NexuParts product data.
What Is the 058133753B PCV Hose Assembly?
The NexuParts listing identifies this product as a PCV hose assembly with a one-way valve. Its OE/OEM reference is 058133753B, and the store SKU is 909457917989. The verified catalog information lists Volkswagen and Audi applications, including Passat, A4, and A6 models with a 1.8T engine reference.
Those make, model, and engine details help narrow a search, but they do not confirm every individual vehicle. Production changes and equipment differences can exist within a familiar model name. Treat the exact OE reference and the physical configuration of the original assembly as the main evidence. If the number appears correct but a branch, bend, valve housing, or connection differs, resolve that conflict before purchase.
Symptoms Do Not Identify One Exact PCV Hose
An engine-ventilation or drivability concern can justify inspection, but it does not identify 058133753B by itself. Diagnosis and part identification are separate steps. The vehicle's system should be checked using appropriate vehicle-specific information before a replacement part is selected.
This distinction prevents a common online-shopping mistake: choosing a part because its name sounds related to a symptom. A PCV hose assembly is a specific physical component. The best purchasing process begins after the system concern has been diagnosed and an OE reference or original assembly is available for comparison.
How to Verify a 058133753B PCV Hose Assembly
1. Match the full OE/OEM reference
Look for 058133753B on the original assembly, its label, repair documentation, or a reliable vehicle-specific parts source. Record every character, including the final letter. Do not shorten the number or assume that a near match represents the same hose configuration. The NexuParts SKU is different from the OE reference, so use 058133753B for the OE-number comparison.
2. Count and orient every hose branch
The product photos show a multi-branch assembly. Compare how many branches leave the main section, which direction each branch points, and how they relate to one another. Rotate your view of the original part mentally or photograph it from several angles; a branch that appears similar from one angle may point differently when the complete assembly is viewed.
3. Follow the formed bends
Trace each hose from end to end. Compare where it changes direction and how the bend positions relate to the valve housings and connection points. The overall routing shape matters. A generic hose description or a single close-up cannot establish that the replacement follows the same path as the original.
4. Compare every connection
Check the visible end diameters, end shapes, and connection styles. Compare both the opening and the surrounding molded features. If one connection is larger, angled differently, or shaped differently, do not assume it will adapt during installation. A side-by-side photo comparison can make these differences easier to spot.
5. Inspect valve housings and clamps
Compare the number, shape, and orientation of the valve housings shown in the listing. Then check the clamp locations and how the clamps sit relative to bends and hose ends. The listing photos are the visual reference for the supplied configuration, including the installed clamps.
Volkswagen and Audi Fitment: What to Confirm
The verified listing data names Volkswagen Passat and Audi A4 and A6 models with a 1.8T engine reference. Do not treat any one of those labels as a complete fitment guarantee. Confirm the vehicle's specific engine information, retrieve the original OE number when possible, and compare the complete assembly.
If you request fitment assistance, prepare the product link, vehicle identification number, year, make, model, engine information, the number from the original hose, and clear photos of its full layout and connections. That evidence is much more useful than asking whether the part fits an “Audi A4” without further detail.
PCV Hose Assembly vs. Purge Valve: Keep the References Separate
Different emissions- and ventilation-related products may appear together in a category or search result, but similar context does not make them interchangeable. For example, NexuParts also lists a BV61-9G866-AA vapor canister purge valve for listed Ford applications. It carries a different OE number, serves a separate listing context, and should not be used as an alternative to 058133753B.
The comparison highlights the importance of exact identification. You can browse the Filters & Fuel System collection to explore related parts, but each product requires its own diagnosis, OE-number check, and physical comparison.
Buying Checklist Before Checkout
- Diagnosis: Confirm that the PCV hose assembly is the component requiring service.
- OE reference: Match the complete number 058133753B.
- Vehicle data: Verify Volkswagen or Audi application details and the listed 1.8T engine reference through a reliable vehicle-specific source.
- Branches: Compare their number, direction, and relative positions.
- Bends: Trace the complete formed routing of every hose section.
- Connections: Compare end shapes, diameters, and molded interfaces.
- Valve housings: Match their number, shape, and orientation.
- Clamps: Check the visible locations and relationship to each connection.
- Quantity: The package includes one PCV hose assembly with one-way valve.
- Uncertainty: Stop and request fitment help if any number or physical detail disagrees.
Before Installation
Compare the new and original assemblies side by side before installation. Keep both oriented the same way and work from one connection to the next, checking branches, bends, housings, and clamps. If a difference becomes visible, do not force the new assembly into the original routing.
Use service information for the specific vehicle to confirm access, routing, connection, and installation requirements. A qualified technician should perform the work when appropriate. This article is a purchasing and identification guide; it does not establish a universal repair procedure for every listed vehicle.
Frequently Asked Questions
Does 058133753B fit every Volkswagen Passat or Audi A4 and A6?
No. Those models are part of the verified listing context, along with a 1.8T engine reference, but model name alone does not prove fitment. Confirm the OE number and compare the complete hose configuration.
Is 909457917989 the OE number?
No. That is the NexuParts store SKU. The OE/OEM reference used for comparison is 058133753B.
What physical details matter most?
Compare the number and orientation of all branches, formed bends, end diameters, connection shapes, valve housings, clamp locations, overall proportions, and visible markings in every product image.
What if the OE number matches but one branch looks different?
Pause before ordering or installation. Recheck the full number, confirm the original assembly, review all listing photos, and request fitment help. A conflicting physical detail should not be ignored.
Make the Final 058133753B Comparison
A reliable purchase decision uses both identification and visual evidence. Before ordering a 058133753B PCV hose assembly, match the full OE reference and compare every branch, bend, connection, valve housing, clamp location, and product photo. Review the current 058133753B product listing, and contact NexuParts before checkout if the comparison is not conclusive.
