The W470589021400 Carbon Scraper is a specialty engine-service tool built for Detroit Diesel DD15 and Detroit Diesel DD16 powerplants. Specifically designed to work in tandem with the corresponding piston ring compressor (OEM tool J-47386 / W470589015900),
Used as part of a full engine rebuild or in-frame service, the W470589021400 helps ensure the correct interface between piston ring pack, liner wall and combustion chamber. By providing a clean, smooth surface at the liner top, the tool supports reliable combustion, minimizes oil consumption, and extends overall engine life. It’s especially beneficial when reinstalling pistons in engines with anti-polishing rings, where proper seating during installation is critical.
Built with rugged, shop-ready materials, the W470589021400 is ideal for professionals — rebuild shops, fleet maintenance centers, or truck repair facilities — and adds an essential cleanup step to piston installation sequences for DD15 / DD16 engines.
Key Features & Benefits
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Designed specifically for Detroit Diesel DD15 and DD16 engines — OEM-equivalent to J-47386 carbon scraper tool.
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Used with the matching piston ring compressor to ensure safe, accurate piston insertion and ring seating.
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Supports cleaner combustion chamber surfaces, improved sealing, reduced blow-by, and extended engine service life.
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Durable, heavy-duty construction suited for repeated use in heavy-duty diesel rebuild environments.
Applications
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Piston installation during rebuild or overhaul of Detroit Diesel DD15/DD16 engines
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Fleet maintenance, remanufacturers, and professional heavy-duty diesel repair shops
