Jeep 21, 23 1987 Parts Catalog – Factory Parts Identification

If you’re turning wrenches on a 1987 Jeep model 21 or 23, you’ve probably already learned that guessing part numbers costs you time and money. I’ve seen guys order the wrong lower control arm three times because they used a third-party parts lookup. That’s where this Jeep 21, 23 1987 Parts Catalog comes in – 1340 pages of factory-issued part numbers, exploded diagrams, and cross-references for every nut, bolt, and bracket. No aftermarket reinterpretation. This is the same binder the dealer parts counter used in 1987.

How to Locate Parts in This Catalog

The “General Information” section (starts INF-2) explains the layout. Parts are grouped by function: Group 2 is Front Suspension & Drive, Group 3 Rear Axle, Group 4 Parking Brake, Group 5 Service Brake, and so on. Each group has figure numbers – for example, Figure 2-100 covers front suspension for Colt models (24,41,45 FWD). To find a part, you use the alphabetical index or the numerical index. The catalog also includes microfiche layout info – originally designed for 4×6 fiche with 288 frames. The indexing is thorough enough that you can locate a part using the “How to Locate Parts” procedure on INF-2. Don’t ignore the “Symbols Used in This Catalog” – they tell you if a part is serviceable or only available as an assembly.

Engine Model and Serial Number – Critical Info

Before you order anything, you need to know your engine model and serial number. That’s covered on page INF-7. The catalog lists engine codes (like 4G63, 6G72 – but check your specific model). Matching the serial number to the illustration index prevents ordering the wrong timing cover or oil pan. I always scribble the engine code on the inside cover so I don’t have to flip back every time.

Group 2 Front Suspension & Drive – What’s Inside

This group alone covers 18 figures. You’ve got front suspension for 2WD and 4WD, lower control arms, crossmembers, stabilizer bars, front axles with and without turbo, axle shafts, differential mounts, and the front differential itself. Each figure lists the part number, description, quantity, and notes. If you’re rebuilding a front diff on a 4WD Power Ram or Raider, Figure 2-1800 shows the differential assembly with every shim and bearing listed. The catalog uses “w/o” and “w/” abbreviations – pay attention to those.

Why OEM Parts Catalog Beats Aftermarket Lookups

Aftermarket websites pull from databases that often merge years or skip superseded part numbers. This catalog is the original 1987 factory print. Every part number prefix is explained in the “Part Number Prefix” section (INF-7). The “Parts Catalog Revision Service” section tells you how updates were handled – bulletins and revisions are integrated, not guessed. If you need a part for a 1987 Jeep 23, you want the exact number the factory stamped. Relying on a parts store computer might get you a “will fit” part that doesn’t. This catalog stops that guesswork.

1340 Pages – Structure and Coverage

The catalog covers 1987-1988 Import passenger cars and trucks, but the Jeep 21 and 23 models are specifically listed. It’s divided into groups: Front Suspension & Drive (Group 2), Rear Axle (Group 3), Parking Brake (Group 4), Service Brake (Group 5), and more. There’s a numerical index that runs over 100 pages. The “Metric Conversion Table” (INF-13) is handy when you’re dealing with fastener sizes that mix imperial and metric – typical for this era. Each figure has a parts list with key numbers that match the illustration. If you’ve ever spent an hour hunting for a part number because the illustration didn’t match, you’ll appreciate the clarity of this layout.

Related Manuals to Check

If you work on other years, you might want to see the 1984 Jeep Import Parts Catalog Index & Layout for earlier models, the Jeep Import 1985 Parts Catalogue Index or the 1994-96 Jeep Parts Catalog Wrangler Cherokee Grand. For general industry background, Automotive Industry Overview and Automotive Battery are external reads, but for part numbers, stick to factory catalogs.

Frequently Asked Questions

Does this catalog cover engine gasket part numbers?

No. This is a parts catalog, not a service manual. It lists the OEM part numbers for every component shown in the diagrams, but it does not include gasket sets or overhaul kits. You will need a separate service manual for torque specs and procedures.

Can I use this catalog for a 1988 Jeep 23?

Yes. The catalog covers 1987 and 1988 model year Import passenger cars and trucks, including Jeep models 21 and 23. The TOC lists 1988 models like Colt Vista and Raider. Verify your VIN against the “Vehicle Identification Number” section.

What is the difference between Figure 2-1100 and 2-1200?

Figure 2-1100 is the front axle without turbo for Colt 24,41,45 FWD. Figure 2-1200 is the front axle with turbo for Colt 24,41 FWD. Turbo vs non-turbo changes the axle assembly part numbers completely.

How do I find a part number for the rear differential limited slip?

Turn to Group 3 Rear Axle. For a 1987 Conquest (24 RWD), Figure 3-700 covers the limited slip differential with intercooler. For Raider (27 4WD), Figure 3-1150 covers limited slip. The “w/LIMITED SLIP” notation is explicit.

Getting the right part the first time means fewer trips to the parts store and less downtime. This catalog puts the original factory data in your hands. Download the Factory Manual now and stop relying on aftermarket guesstimates.