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Connect Exhaust Manifold Stud M8 x 1.25 x 37mm 5 Piece Set - 35420

Connect Exhaust Manifold Stud M8 x 1.25 x 37mm 5 Piece Set - 35420

A pack of M8 x 1.25 double ended threaded studs, suitable for both inlet and exhaust manifold on F...

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eBayConnect Exhaust Manifold Stud M8 x 1.25 x 37mm 5 Piece Set - 35420
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Product Information

Full details

This guide is for mechanics and automotive enthusiasts working on Fiat, Opel, and Renault vehicles. The Connect Exhaust Manifold Stud set (MPN: 35420) provides a durable solution for securing exhaust manifolds, offering a key benefit of adaptable length for precise fitting. A minor consideration is that the studs come slightly lubricated, which may need to be accounted for during installation depending on the specific application. Key features include M8 x 1.25 threading, a 37mm overall length, and the ability to cut the longer thread to custom lengths.

All features

Model Part Number35420
BrandConnect

Extended Product Information

FAQs

What does M8 x 1.25 mean?

M8 indicates the metric thread size is 8mm in diameter. The 1.25 indicates the pitch, meaning there are 1.25 millimeters between the thread crests.

Can I use these studs on other car brands?

While primarily intended for Fiat, Opel, and Renault, they can be used on any vehicle requiring M8 x 1.25 threaded studs for exhaust manifold applications, provided the dimensions are suitable.

How do I clean the lubrication off the studs?

You can use a degreaser or brake cleaner with a lint-free cloth to remove the light lubrication if it interferes with any specific installation requirements.

What is the shoulder length?

The shoulder on the stud is 7mm long.

Are nuts included with this set?

No, this set includes only the double-ended threaded studs. Compatible M8 x 1.25 exhaust manifold nuts are available separately.

Can the longer thread be cut to any length?

The longer thread is 20mm. You can cut it down to any length that is less than 20mm, as required by your application.

Troubleshooting

Stud will not thread into manifold/cylinder head.

Check for cross-threading. Ensure the M8 x 1.25 thread pitch is correct for the receiving hole. Inspect the hole for debris or damage.

Stud broke during installation.

Ensure you are not over-tightening. If the stud snapped due to excessive force, you may need to extract the broken piece and use a new stud, potentially after drilling and tapping the hole if damaged.

Difficulty cutting stud to length.

Use a sharp cutting tool designed for metal. Ensure the stud is securely held while cutting. Deburr the cut end smoothly.

Pros and Cons

Pros

  • Allows for custom length adjustment to fit specific manifold needs.
  • Designed for secure fastening in critical engine areas.
  • Provides a solution for common exhaust manifold repair scenarios.
  • Corrosion prevention coating offers an initial layer of protection.

Cons

  • Requires cutting to length, adding a step to the installation process.
  • Lubrication may need to be cleaned for certain adhesive or sealing applications.
  • Sold in a 5-piece set, which may be more than needed for a single repair.

Setup, Compatibility & Care Instructions

Setup:

  1. Identify the correct thread size required for your vehicle's manifold. These studs are M8 x 1.25.
  2. If necessary, cut the longer (20mm) thread to the desired length using an appropriate metal cutting tool (e.g., a hacksaw or cutting disc). Ensure the cut end is clean and free of burrs.
  3. Thread the appropriate end of the stud into the manifold or cylinder head. Hand-tighten first to ensure proper thread engagement.
  4. Use a wrench on the shoulder (7mm) or the appropriate end to fully secure the stud, if required by the application.
  5. Install the exhaust manifold and secure it with compatible nuts.

Compatibility:

  • Vehicle Brands: Primarily designed for Fiat, Opel, and Renault vehicles.
  • Thread Standard: M8 x 1.25. Ensure your existing fittings match this specification.

Care:

  • The studs are supplied with a light lubrication to prevent corrosion. This is generally suitable for their intended application.
  • If the studs will be stored for extended periods or exposed to harsh environments before installation, consider reapplying a suitable anti-corrosion treatment if the existing lubrication is compromised.
  • Clean any excess lubrication from the threads before applying thread-locking compounds or sealants, if your specific repair procedure calls for them.

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