Description

Chrysler Grand Cherokee 1998 Parts Catalog – Factory OEM Part Numbers

Ordering parts for a 1998 Grand Cherokee without the factory catalog is a gamble I’ve seen lose dozens of weekend mechanics. One guy ordered three different front axle shafts before I’d even finished my coffee. The Chrysler Grand Cherokee 1998 Parts Catalog ends that. This is the OEM document Chrysler dealerships used – 428 pages of part numbers, exploded views, and VIN decoding tables. If you’re touching a 1998 Grand Cherokee, you need this on your screen or bench.

VIN Decoding: The First Step to Getting the Right Part

Before you order a single bolt, decode the VIN. Page 1 of this catalog has the full Chrysler VIN plate interpretation table. Position 8 tells you the engine: S for 4.0L, P for 5.2L, Z for 5.9L, M for 2.5L Diesel. Position 6 gives the series – Laredo or Limited. I’ve watched guys bolt a 5.2L starter onto a 5.9L and wonder why it didn’t fit. That’s a $75 mistake you avoid with 30 seconds of VIN reading. The catalog also includes sales code notes for springs and shocks, so you order the right rate for your suspension package.

Front Suspension and Drive – Group 2 Breakdown

Group 2 covers the entire front suspension and drive system. Figures 2-110 through 2-610 detail springs, shocks, control arms, stabilizer bar, track bar, front axle shafts, housing, and differential. Every figure lists actual Chrysler part numbers, not aftermarket cross‑references. If you’re replacing the front track bar on a 1998 Grand Cherokee 4×4, the catalog shows you the correct bar for your VIN line code (W for RHD, Z for LHD). The Suspension section includes notes on Normal Duty vs. Firm suspension sales codes. Don’t trust the parts store computer; this is the source.

428 Pages of Factory Part Numbers

428 pages. That’s not a skim. Each page holds exploded diagrams and tables for every mechanical group: Front Suspension & Drive (Group 2), Rear Axle (Group 3 – Dana 35C and Dana 44), Parking Brake (Group 4), Service Brakes (Group 5), Clutch (Group 6), Cooling (Group 7 – including separate radiators for 4.0L, 5.2L/5.9L, and 2.5L Diesel), and Electrical (Group 8 – starters, alternators, sensors, PCM). You get the exact part numbers for the 5.2L and 5.9L oil cooler lines, the 4.0L water pump, and the 2.5L diesel intercooler radiator. For electrical work, the module and sensor diagrams (Fig. 8-405, 8-605) are critical – one wrong relay and you’re chasing a no‑start for hours.

Why a Factory Parts Catalog Beats Aftermarket Lists

Aftermarket catalogs merge part numbers across years and trim levels, and they get it wrong. I’ve seen a 1998 Grand Cherokee listed with a 1999 part for the rear axle vent – different thread pitch. This Parts Catalog comes straight from Chrysler’s 1998 ZG model year documentation. Every figure is model‑specific. The rear axle shaft part numbers for Dana 35C (Fig. 3-410) are different from Dana 44 (Fig. 3-420). The aftermarket won’t tell you that. This catalog does. For transmission‑specific parts, pair it with the Chrysler 42RE Transmission Technical Manual if you’re dropping the valve body. And for the 45RFE found in later models, the ATSG Chrysler 45RFE Transmission Service Manual is a companion you’ll want.

Engine Options: 4.0L, 5.2L, 5.9L, and 2.5L Diesel

Four engines, four different part sets. The catalog breaks out cooling system components by engine: Fig. 7-150 for 4.0L, Fig. 7-160 for 5.2L and 5.9L, and Fig. 7-165/7-170 for the 2.5L Diesel. If you’re working on the diesel, you’ll need the Bosch injection pump parts – this catalog has them. The diesel also has a separate intercooler radiator (Fig. 7-170). For general diesel background, see this Wikipedia article on diesel engines. The 5.9L V8 uses a different starter (Fig. 8-120) than the 4.0L (Fig. 8-105). Ignore the aftermarket “universal” list and use the factory codes.

For the front suspension on the 1998 Grand Cherokee, cross‑reference with the Dodge Challenger 2008 Parts Catalog Front Suspension if you’re swapping geometry – but that’s an advanced job. Stick with the factory chart first.

One more point on safety: the brake master cylinder diagram (Fig. 5-410) gives the correct proportioning valve part number for your GVWR class (G through M on the VIN, page 1). Installing the wrong master cylinder on a vehicle rated 6001‑7000 lbs can cause brake imbalance. This catalog prevents that.

FAQ

Does this catalog include torque specs for suspension bolts?

No. This is a parts catalog, not a service manual.

How do I use the VIN decoding table to find the correct engine parts?

Look at VIN position 8 on page 1. For a 1998 Grand Cherokee, S = 4.0L, P = 5.2L, Z = 5.9L, M = 2.5L Diesel. Then cross‑reference that code with the engine tables in Groups 7 (Cooling) and 8 (Electrical). For example, if your VIN shows P (5.2L), you order the radiator from Fig. 7-160 and the alternator from Fig. 8-210. Sales codes like [EL0] or [EM0] further differentiate specific engine variants. Always verify the line code (position 5) – W for RHD, Z for LHD – because some suspension parts differ between left‑hand and right‑hand drive models. This catalog’s VIN table is the only reliable method for 1998 ZG models.

Factory documentation makes the difference between a one‑afternoon repair and a three‑weekend headache. Haven’t seen a 1998 Grand Cherokee parts catalog this clean anywhere else. Access the Factory Manual now and keep it on your tablet or printed – you’ll reference it every time you order a part.