Description
Keep Your Manifold Bolts Locked Tight Under Extreme Heat
Stop exhaust leaks before they start with this heavy-duty, direct-replacement Exhaust Manifold Bolt Lock Plate (Part # 3914708). Intense thermal expansion and heavy engine vibrations frequently cause standard manifold bolts to back out over time. This premium locking tab bends directly over the bolt flats, creating a permanent mechanical lock that prevents hardware from loosening.
Engineered strictly to original equipment manufacturer (OEM) specifications, this critical hardware component ensures a tight, durable seal between your exhaust manifold and cylinder head. It protects your rig from performance-robbing exhaust leaks, power loss, and costly downtime.
Key Product Features:
- Positive Locking Security: Mechanically prevents exhaust manifold bolts from backing out due to extreme engine vibration and severe thermal cycling.
- Premium Heat-Resistant Steel: Stamped from high-strength, heat-treated steel designed to survive intense exhaust temperatures without fatiguing or warping.
- Direct Fit Replacement: Manufactured to precise factory dimensions for a hassle-free, drop-in installation on every build.
- Thread Protection: Saves your cylinder head threads from stripping or cross-threading caused by loose, vibrating bolts.
Engine & Vehicle Fitment:
This locking tab is widely used across heavy-duty commercial truck, industrial, marine, and agricultural applications. It is a direct fit for the following engine platforms:
- Cummins Engines: 8.3L C-Series (6C, 6CT, 6CTA), ISC, and ISL series.
- Case IH / Case Equipment: Compatible with various industrial tractors, combines, and heavy machinery utilizing Cummins-sourced blocks (Cross-reference: J914708).
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