Crusader Exhaust Manifold 6.0L | OEM Water-Cooled | Part R028024

Crusader Exhaust Manifold 6.0L — OEM Part R028024

Genuine Crusader OEM water-cooled exhaust manifold for 6.0L marine engines. This precision-cast manifold collects exhaust gases from the cylinder head and routes them through the exhaust system while integrated water cooling passages prevent overheating. It is the correct OEM replacement for compatible Crusader 6.0L engine applications.

Part Information

• Part Number: R028024
• Brand: Crusader
• Official Product Type: Water-Cooled Exhaust Manifold
• Engine Displacement: 6.0L (LQ4 GM-based V8)
• System: Exhaust — Water-Cooled Manifold
• Construction: Precision-cast, marine-grade

Compatible Applications

• Crusader 6.0L marine engines where R028024 is specified in the parts diagram
• PCM 6.0L LQ4-based marine engines where R028024 is specified
• Always confirm fitment by engine model, serial number, and parts diagram before ordering — manifold specifications vary by engine generation and exhaust configuration
• Verify left (port) or right (starboard) side application before ordering — exhaust manifolds are typically side-specific

Serial Number & Fitment Notice

Confirm fitment using your Crusader engine serial number and the corresponding parts diagram. Exhaust manifold specifications vary by engine generation, exhaust configuration, and side (port vs. starboard). Do not assume fitment based on displacement alone.

When to Replace

• Visible cracks, pitting, or corrosion on the manifold body
• Water leaks from the manifold or cooling passages
• Exhaust leaks at the manifold-to-cylinder head joint
• Overheating caused by blocked or corroded water cooling passages
• Exhaust odor in the engine compartment
• Preventative replacement during major engine service on high-hour engines

Service Interval

• Inspect annually for cracks, corrosion, and water passage condition
• Replace immediately if cracks, water leaks, or exhaust leaks are found
• Internal cooling passage corrosion is the most common failure mode on saltwater-operated engines and may not be visible externally

Installation Notes

• Always replace the exhaust manifold gasket when installing a new manifold — see Crusader Exhaust Manifold Gasket RM0007 and PCM/Crusader Exhaust Manifold-to-Cylinder Head Gasket RM0276
• Inspect the cylinder head mating surface for warping or damage before installation
• Torque manifold fasteners to the specification in the Crusader service manual in the correct sequence
• Inspect and replace the exhaust elbow at the same time if it shows corrosion or wear — see Crusader Exhaust Elbow R029016A and PCM 6.0L Short Elbow R031036
• Flush and inspect cooling passages before returning the engine to service

Technical FAQ

How do I know if my exhaust manifold needs replacing?
The most common signs are water leaks from the manifold body or cooling passages, exhaust leaks at the cylinder head joint, overheating caused by blocked cooling passages, and visible external corrosion or cracking. On saltwater-operated engines, internal corrosion of the water cooling passages is the primary failure mode and may not be visible externally — inspect the passages during annual service.

Should I replace the gaskets when installing a new manifold?
Yes. Always install new gaskets when replacing an exhaust manifold. Reusing old gaskets risks exhaust leaks and cooling system failures after installation.

Is this manifold side-specific?
Exhaust manifolds are typically port (left) or starboard (right) side-specific. Confirm which side you need against your engine’s parts diagram before ordering.

Parts Desk Insights

Best Use Case: This is the correct OEM replacement for Crusader and PCM 6.0L engine owners dealing with a failed or corroded water-cooled exhaust manifold. It is particularly well-suited for high-hour saltwater engines where internal cooling passage corrosion is the primary failure mode, and for owners who want to restore the exhaust system to factory specification.

Common Customer Issue: The most frequent issue is customers replacing only the manifold without inspecting or replacing the exhaust elbow and gaskets at the same time. On a high-hour engine, if the manifold has failed, the elbow is likely in similar condition. Replacing all exhaust system components together during a single service event avoids a repeat job shortly after. Also confirm the correct side (port or starboard) before ordering.

Related Products

• Crusader Exhaust Manifold Gasket — RM0007
• PCM/Crusader Exhaust Manifold-to-Cylinder Head Gasket — RM0276
• Crusader Exhaust Elbow — R029016A
• PCM 6.0L Short Elbow — R031036
• Crusader Center Riser — CR-20-98126
• Crusader Exhaust Manifold 302/351 — R028001
• PCM Crusader Crankshaft Position Sensor 6.0L LQ4 — R020044