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Wehrli 03-07 Cummins 5.9L Twin Turbo Kit S400/Stock - Sparkle Copper

Name: Wehrli 03-07 Cummins 5.9L Twin Turbo Kit S400/Stock - Sparkle Copper
Brand: Wehrli
SKU: wcfWCF100567-SC
Price: 2519.00 USD

MPN WCF100567-SC · Store SKU wcfWCF100567-SC

$2,519.00

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Supplier stock checked 11/7/2026, 3:24:15 PM UTC. Adding a part does not reserve it.

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Product details

2003-2007 5.9L Cummins S400/Stock Compound Turbo Kit. 1000 RWHP capable, depending upon turbo and fuel system modifications. Recommended for daily driver work trucks and tow rigs looking for increased horsepower, better fuel mileage, and superior EGT control with stock-like turbo spool characteristics. Recommended Combinations - S475 / Stock Holset Turbo - Up to 750 RWHP with Supporting Modifications - Best Turbo Spool, performs well on stock fuel setups. S480 / Stock Holset Turbo - 800+ RWHP Capable with Supporting Modifications - A better top-end performance that sacrifices a bit of spool on the lower end when compared to an S475/stock setup. S480 / 63 or 64 Upgraded Drop-In Turbo - 900+ RWHP Capable with Supporting Modifications - Improved top end power with moderate spool characteristics S480 / 67 Upgraded Drop-In Turbo - 1000+ RWHP Capable with Supporting Modifications - Best Top End Power, sacrifices low-end power and turbo spool - Manual trans trucks will allow best use of power band for this setup. The S480 / 67 upgraded drop-in setup is not recommended for tow rigs due to spool characteristics. Not sure which kit is right for you? Give us a call to discuss your build. Wehrli Custom Fab Twin Turbo Kit S400/Stock, for 2003-2007 Cummins 5.9L, Sparkle Copper Twin Turbo Kit S400/Stock, for 2003-2007 Cummins 5.9L, Sparkle Copper

Manufacturer fitment & guides

Check WCF100567-SC against the manufacturer’s application information below.

Installation Instructions ↗

Part-specific notes

Not CARB approved. Destination and intended-use restrictions must be checked before sale.
Emissions acknowledgement required before purchase.
California Proposition 65: Y

Manufacturer documents

Installation Instructions

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What is the return policy?

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Wehrli 03-07 Cummins 5.9L Twin Turbo Kit S400/Stock - Sparkle Copper

Product details

Manufacturer fitment & guides

Part-specific notes

Manufacturer documents

THE NEXT PART
OF YOUR BUILD.

Free shipping on $100+ orders.

Build with the right brands.

Find your next upgrade.

Make the whole setup work.

A few things to know.

Your cart.

Freight & oversized shipping quote

Delivery address