Hardware 4 wheels
M12x1.5 Exhaust Manifold Stud | 50mm Total Length (15mm / 25mm Ends) | Yellow Zinc Plated
M12x1.5 Exhaust Manifold Stud | 50mm Total Length (15mm / 25mm Ends) | Yellow Zinc Plated
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Ensure a gas-tight, heat-resistant exhaust seal with this heavy-duty M12x1.5 exhaust manifold stud. Measuring 50mm in total length with a dual-threaded design—15mm head end and 25mm manifold/nut end—this stud is designed to thread directly into engine cylinder heads to securely mount and clamp the exhaust manifold. Treated with a yellow zinc plating for superior thermal and rust protection, it prevents exhaust leaks, resists thread seizing, and handles high engine bay thermal cycling.
Thread Pitch: M12 x 1.5 (Coarse metric thread widely used across engine manifold applications).
Dual-Thread Dimensions: 15mm engagement thread (cylinder head side) and 25mm mounting thread (manifold/nut side).
Corrosion Protection: Yellow zinc plated to prevent rust, seizing, and heat degradation in harsh engine bay environments.
High-Strength Build: Formulated from high-tensile steel to maintain clamping pressure under extreme thermal expansion.
- Sold: Individually
- Shipping: Usually ships within 24 hours (Delivery in South Africa only)
- SKU: MS-12150-50-1525
Technical Specifications:
|
Spec |
Detail |
|
Thread Size & Pitch |
M12x1.5 |
|
Total Length |
50mm |
|
Block / Head Thread Length |
15mm |
|
Manifold / Nut Thread Length |
25mm |
|
Unthreaded Centre Shank |
~10 mm |
|
Material / Grade |
High-Tensile Carbon Steel |
|
Finish |
Yellow Zinc Plated (Heat & Corrosion Protection) |
|
Installation Type |
Thread-In Cylinder Head Stud |
|
Primary Vehicle Compatibility |
Universal M12x1.5 Engine Manifold Fitment.
Popular Applications: Commercial vehicles, turbos, performance headers, bakkies, and passenger car engine cylinder heads requiring M12x1.5 stud threads.
|
Exhaust manifold studs are specialized double-ended fasteners screwed directly into the engine cylinder head. They act as guiding pins during manifold installation and provide constant clamping force between the manifold gasket and the cylinder head flange. Replacing worn or stretched studs prevents hazardous exhaust gas leaks, blown manifold gaskets, and annoying engine ticking sounds caused by thermal warping.
⚠️ Important Fitment Tips:
Verify Thread & Pitch: Always confirm whether your cylinder head requires M12x1.5 (coarse/standard pitch) or M12x1.25 (fine pitch) prior to installation.
Installation Tip: Install the short 15mm threaded end into the cylinder head and use copper anti-seize grease on the 25mm manifold side for easy future disassembly.
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