🏷️ Basic Information Identification Make: Jeep Model: Wrangler (YJ), Cherokee (XJ), Grand Cherokee (ZJ) Codes Chassis Code Yj: YJ Chassis Code Xj: XJ Chassis Code Zj: ZJ 👋 Introduction Market Position Target Audience: Jeep owners, mechanics, parts suppliers, restoration enthusiasts Competitive Analysis Value Proposition: Provides essential OEM part identification for YJ, XJ, and ZJ models, crucial for maintenance and restoration. Key Features Navigation: Simple, with chapter bookmarks and keyword search Accessibility: Viewable on any computer 📋 Manual Details Coverage Areas Primary Coverage: Parts Catalog for YJ Wrangler, XJ Cherokee, ZJ Grand Cherokee Secondary Coverage: Illustrated parts identification Page Count Estimated Page Count: Extensive (Exact count not specified, but typical for comprehensive parts catalogs) Manual Type Type: Illustrated Parts Catalog Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain Components: Engine, transmission, transfer case, axles, driveline components Chassis Components: Suspension (front and rear), steering, brakes, wheels, tires Body And Exterior: Body panels, doors, fenders, hoods, bumpers, lighting, glass, trim Interior Components: Seats, dashboard, interior trim, climate control, electrical components Electrical System: Wiring harnesses, switches, sensors, relays, fuse box components Procedures Included Identification Of Parts: Visual identification of all factory-supplied parts Part Number Lookup: Access to correct OEM part numbers for ordering and replacement Assembly Breakdowns: Exploded views illustrating component relationships and assembly order Technical Depth Depth: Detailed component breakdown for precise identification and sourcing Focus: OEM parts identification and cataloging, not repair procedures 📊 Manual Specifications File Format Format: PDF Searchability: Searchable by keyword Indexing: Indexed for easy navigation Print Quality Printability: Printable Viewing Quality: Easy to read, zoomable Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Yj Engine Code Yj: 2.5L AMC 150 I4 Displacement Yj: 2.5 liters (150.3 cubic inches) Optional Engine Yj Engine Code Yj Opt: 4.0L AMC 242 I6 Displacement Yj Opt: 4.0 liters (241.7 cubic inches) Primary Engine Xj Engine Code Xj: 2.5L AMC 150 I4 Displacement Xj: 2.5 liters (150.3 cubic inches) Optional Engine Xj Engine Code Xj Opt: 4.0L AMC 242 I6 Displacement Xj Opt: 4.0 liters (241.7 cubic inches) Primary Engine Zj Engine Code Zj: 5.2L Magnum V8 Displacement Zj: 5.2 liters (318 cubic inches) Optional Engine Zj Engine Code Zj Opt: 4.0L AMC 242 I6 Displacement Zj Opt: 4.0 liters (241.7 cubic inches) Performance General Engine Variations: Multiple engine options across the covered models and years, including inline-four, inline-six, and V8 configurations. Fuel System Injection Type: Electronic Fuel Injection (EFI) 🔧 Transmission Yj Transmission Manual Yj: AX-5 5-speed manual (standard on 2.5L) Automatic Yj: AW-4 4-speed automatic (optional on 2.5L, standard on 4.0L) Xj Transmission Manual Xj: AX-5 5-speed manual (standard on 2.5L) Automatic Xj: AW-4 4-speed automatic (optional on 2.5L, standard on 4.0L) Manual Xj Late: NV3550 5-speed manual (later XJ models) Zj Transmission Automatic Zj: 42RE 4-speed automatic (standard on 4.0L and 5.2L) Optional Transmission Zj: 44RE 4-speed automatic (later ZJ models with 5.2L) Features Transfer Cases: Command-Trac (NV231), Selec-Trac (NV242), Quadra-Trac (NV247, ZJ specific) 📐 Dimensions General Note Dimensional Variations: Dimensions vary significantly between YJ, XJ, and ZJ models, and by specific year and configuration. Catalog details specific part dimensions. 🛡️ Safety Features General Note Safety Features: Catalog primarily lists parts related to safety systems (brakes, seatbelts, airbags where applicable) without detailing ratings. 💡 Technology Features General Note Technology Features: This catalog focuses on mechanical and electrical components rather than specific infotainment or driver-assistance technology features of the era. Infotainment Infotainment Systems: Basic AM/FM radio, cassette, optional CD players; HVAC controls. Catalog includes parts for these systems. Driver Assistance Driver Assistance Features: Limited to basic ABS (later models, ZJ) and four-wheel-drive systems. 🔧 Maintenance General Note Maintenance Schedules: This catalog does not provide maintenance schedules but lists all necessary parts for scheduled maintenance and repairs. Fluid Specifications Engine Oil Spec: Various weights (e.g., 10W-30, 5W-30) depending on engine and climate. Catalog lists specific oil filter part numbers. Transmission Fluid Spec: ATF+4, Dexron III, or specific manual transmission fluids depending on transmission type. Catalog lists correct fluid and filter part numbers. Known Issues Common Issues Yj Xj: Rust, aging bushings, worn suspension components, cooling system issues, rear main seal leaks (4.0L). Catalog identifies all replacement parts. Common Issues Zj: Transmission issues (e.g., 42RE/44RE), cooling system problems, interior electrical gremlins, rust. Catalog identifies all replacement parts. 📚 Vehicle History Brand Heritage Jeep Heritage: Jeep has a long history of rugged, off-road capable vehicles, originating from military applications. Model Evolution Yj Yj Generation: Second generation Wrangler (1986-1995), known for its distinctive square headlights and coil-spring suspension. Model Evolution Xj Xj Generation: Cherokee (1984-2001), pioneering the compact SUV segment with its unibody construction and excellent off-road capability. Model Evolution Zj Zj Generation: First generation Grand Cherokee (1993-1998), introducing a more upscale and comfortable SUV experience while retaining Jeep's off-road...