The SPOOLOGIC Turbo Step Gap Oil Seal Kit SL-210-110 is a complete oil seal service pack for the genuine OEM IHI RHG6 turbocharger on 2001-2004 LB7 Duramax applications. Built to OE specifications — the same seal rings SPOOLOGIC uses when building a new turbo on our SL-100 line. Includes new compressor-side and turbine-side step gap piston-ring style seal rings — the two most common oil-control failure points on this CHRA. Ships as a seal-only pack for shops and DIY builders who are servicing a turbo that has developed oil leaks past the shaft seals but still has serviceable bearings and rotating hardware. If bearings, shaft, or thrust hardware also need replacement, order the full SPOOLOGIC Turbo Rebuild Kit for this platform instead.

What’s Included

• 1 SPOOLOGIC turbo step gap oil seal kit — compressor-side and turbine-side step gap piston-ring seal rings

Features

• Compressor-side and turbine-side step gap piston-ring seal rings for the genuine OEM IHI RHG6 turbocharger
• Built to OE specifications — drops directly into the factory CHRA
• Precision-ground seal rings sized for the factory CHRA
• Addresses blue smoke, oil in intake, oil in exhaust housing caused by worn shaft seals
• Same seal rings SPOOLOGIC uses when building a new turbo on our SL-100 line
• Built brand new, never remanufactured

Fits 2001-2004 6.6L Duramax LB7

• 2001 – 2004 Chevrolet Silverado GMC Sierra 2500 / 3500 6.6L Duramax LB7

Turbo Applications

• IHI RHG6 (2001-2004 6.6L LB7 Duramax)
• SPOOLOGIC SL-210-020 (2001-2004 6.6L LB7 Duramax turbo rebuild kit)

Replaces Factory OEM Part Numbers

• 1045837
• 2905769000
• 8973077110
• 8973077111
• 97307711
• 97720748
• BD1045837
• FPE-LB7-63

DIY Product — All Sales Final, No Warranty, No Returns

This SPOOLOGIC turbo step gap oil seal set is a professional DIY assembly product intended for experienced turbo builders and rebuild shops. Successful installation requires proper tools, OEM service procedures, cleanliness standards, correct CHRA disassembly and reassembly technique, and dynamic balancing of the completed rotating assembly on a VSR balancer before return to service. Because SPOOLOGIC has no control over installation quality, balancing accuracy, or the condition of the parts the kit is installed into, all sales are final — no warranty, no returns, no exchanges. By purchasing this kit you acknowledge that you are responsible for correct rebuild, balancing, and installation.