🏷️ Basic Information Identification Make: Hummer Model: H1 Year: 2006 Engine Code Primary: DURAMAX 6.6L Product Type: Parts Catalog Codes Engine Complete Part Number: 6016681 Engine Longblock Part Number: 5746164 👋 Introduction Market Position Vehicle Class: Heavy-duty, off-road, military-derived civilian vehicle Segment: Ultra-high mobility vehicle (UHMW) / Extreme terrain vehicle Competitive Analysis Direct Competitors: No direct civilian competitors, but shares lineage with military HMMWV (Humvee). Key Features Defining Characteristics: Unparalleled off-road capability, robust construction, high ground clearance, deep fording capability, central tire inflation system. Manual Purpose: Essential resource for identifying and ordering correct OEM replacement parts for the 2006 Hummer H1 equipped with the Duramax diesel engine. Value Proposition Target Audience: Hummer H1 owners, restoration specialists, off-road enthusiasts, and repair shops specializing in high-mobility vehicles. 📋 Manual Details Coverage Areas Systems Covered: • Engine (DURAMAX 6.6L) • Fuel System • Emissions System • Exhaust System • Cooling System • Transmission • Transfer Case • Wheels and Tires • Central Tire Inflation System (CTIS) • Brake System • Steering System • Axles • Suspension • Frame • Body • Heating, Ventilation, and Air Conditioning (HVAC) • Electrical System • Accessories Page Count Estimated Page Count: Extensive (typical for H1 parts catalogs, estimated 500-1000+ pages) Manual Type Catalog Type: Commercial Parts Catalog Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Detailed breakdown of DMAX 6.6L engine components, including complete engine assemblies and long blocks, intake, exhaust, lubrication, and cooling systems. Powertrain Systems: Comprehensive parts listing for transmission, transfer case, driveshafts, differentials, and associated components. Chassis Systems: Includes parts for braking, steering, suspension, frame, axles, and the unique Central Tire Inflation System (CTIS). Body And Interior Systems: Covers all exterior body panels, doors, windows, lights, interior trim, seating, and HVAC components. Electrical And Accessories: Detailed parts diagrams and listings for the electrical system, wiring harnesses, switches, and various factory-installed accessories. Procedures Included Parts Identification: Primary function is precise identification of all replaceable parts with corresponding part numbers and diagrams. Assembly Disassembly References: While not a repair manual, the exploded diagrams are invaluable for understanding assembly and disassembly sequences. Technical Depth Depth Of Information: Highly detailed, focused on OEM part numbers, component relationships, and interchangeability, critical for sourcing correct replacement parts. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF, allowing for quick part number or keyword lookups. Print Quality Printability: Printable format, allowing users to print specific sections or the entire catalog. Binding Type Binding Options: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Compatibility Operating System Compatibility: Windows and Mac compatible ⚙️ Engine Specifications Primary Engine Engine Manufacturer: General Motors (GM) Engine Model: DURAMAX 6.6L (LLY variant for 2006) Engine Type: Turbocharged V8 Diesel Displacement: 6.6 Liters (400 cu. in.) Bore X Stroke: 4.06 in. x 3.90 in. (103 mm x 99 mm) Compression Ratio: 17.3:1 Fuel Delivery System: High-pressure common rail (HPCR) direct injection Horsepower Rating: Approx. 320 hp @ 3000 rpm (LLY variant) Torque Rating: Approx. 525 lb-ft @ 1600 rpm (LLY variant) Fuel System Fuel Type: Diesel Fuel Filters: Primary fuel filter/water separator, secondary fuel filter 🔧 Transmission Standard Transmission Type Standard: Allison 1000 5-speed automatic Transmission Gear Ratios Example: 1st: 3.10, 2nd: 1.81, 3rd: 1.41, 4th: 1.00, 5th: 0.71, Reverse: 2.93 (typical for Allison 1000) Transmission Fluid Type: Dexron-III H or Dexron-VI ATF Transfer Case Transfer Case Type: 2-speed planetary gear transfer case with electronic shift control (optional locking center differential) Features Powertrain Features: Locking differentials (front, rear, center optional), portal gear hubs for extreme ground clearance. 📐 Dimensions Exterior Overall Length: Approx. 201.3 inches (5113 mm) Overall Width: Approx. 86.5 inches (2197 mm) Overall Height: Approx. 75.9 inches (1928 mm) Wheelbase: Approx. 130 inches (3302 mm) Weights Curb Weight: Approx. 7,000 - 8,000 lbs (3175 - 3629 kg) depending on body style Gross Vehicle Weight Rating: Approx. 10,500 lbs (4763 kg) Towing Capacity: Approx. 2,700 lbs (1225 kg) Off Road Ground Clearance: Approx. 16 inches (406 mm) with portal hubs Approach Angle: Approx. 68 degrees Departure Angle: Approx. 47 degrees Breakover Angle: Approx. 37 degrees Fording Depth: Approx. 30 inches (762 mm) standard, up to 60 inches (1524 mm) with optional snorkel 🛡️ Safety Features Ratings Crash Test Data Availability: Limited comparable safety ratings due to unique niche and military heritage; not typically subjected to standard NHTSA/IIHS testing. Active Features Braking System: Four-wheel disc brakes with ABS (Anti-lock Braking System) Tire Inflation System: Central Tire Inflation System (CTIS) allows adjustment of tire pressure for different terrain. Passive Features Occupant Protection: Robust body-on-frame construction, seat belts, limited airbag availability on civilian models. 💡 Technology Features Infotainment Audio System: Basic AM/FM/CD player, optional premium sound systems. Driver Assistance ABS Availability: Standard ABS on all four wheels. Ctis Functionality: Allows driver to select pre-set tire pressures (e.g., highway, off-road,...