Product Description
Restore factory fuel delivery and OE-level reliability with the INDUSTRIAL INJECTION 0986435521SE-IIS stock reman injector for the 2006–2007 6.6L Duramax LLY/LBZ. Built using genuine Bosch components and validated to OEM specs, this direct-replacement injector is ideal for maintenance and stock-compliant repairs.
Fitment
- 2006–2007 Chevrolet Silverado / GMC Sierra 2500HD, 3500HD
- Engine: 6.6L Duramax LLY / LBZ
What’s Included
- (1) Remanufactured injector — stock flow
- New copper crush washer & O-rings (install seals)
Key Features
- Bosch-authorized reman with new OEM components
- Direct bolt-in replacement for 06–07 LLY/LBZ
- Backed by manufacturer warranty (see listing details)
Recommended Parts (CPP internal links)
- LBZ Injector Seal Kit (2006–2007)
- LLY/LBZ Valve Cover & Lower Rocker Cover Gasket Set
- Injector Return Line Kit (LLY/LBZ/LMM)
- Duramax Fuel Filtration & Filters
- Shop All Duramax Injectors & Nozzles
Cross-Reference / Alternatives (CPP internal)
- BOSCH 0986435521 Reman Injector (LBZ)
- Industrial Injection 23 LPM (R1)
- Industrial Injection 25 LPM (R2)
- Industrial Injection 29 LPM (R4)
- Industrial Injection 38 LPM (R6)
Helpful Notes
- Core charge: refundable when your core is returned per CPP/Manufacturer policy.
- Bleed air from the fuel system after installation; always use a clean, quality fuel filter.
- Replace return line seals and valve cover gaskets if brittle or oil-soaked during service.
FAQ
Is this injector stock flow?Yes. The 0986435521SE-IIS is a stock-flow reman designed as an OE-equivalent replacement for 2006–2007 LLY/LBZ trucks.
Do new seals come with the injector?Yes, a new copper crush washer and O-rings are included. We still recommend a full seal kit if you’re servicing multiple cylinders.
Do I need tuning after installation?No tuning is required for stock-flow replacements. Verify there are no underlying fuel pressure or balance rate issues.
What else should I replace while I’m in there?It’s smart to install fresh injector return line seals, check the valve cover gaskets, and start with a new fuel filter to protect the system.
