Why does it say this doesn’t work on 02 wrangler 4.0?

Not sure, but I can tell you it works on a 99 Grand Cherokee 4.0 and an 03 Grand Cherokee 4.0. Not sure what the differences between the wrangler and Grand Cherokee 4.0’s are

Does it fit a 2003 TJ wrangler ?

This Jeep Fuel Rail kit is meant for any Jeep with a 4.0L inline 6 cylinder engine, '97 - '04. This will also work for mater model 4.0L inline 6cyl engine with some modification to the fuel rail sleeve.

Is there any reason why this shield/kit would not fit a 1996 Cherokee XJ 4.0?

If the intakes and fuel rail look the same, it'll likely fit.. There have been small changes in the intake manifold over the years that could make the flat shield not fit..

Will this fit an 82 cj7 4.2 that has mopar mpi installed? it is based on the wrangler 4.0 mpi set up.

Can’t speak specifically to that motor, but this set fits the 99-03 4.0 in the Grand Cherokee for sure and I’m sure the same years of Wrangler.

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🚙 Upgrade Your Jeep, Elevate Your Ride!

PERFECT FIT - Tailored specifically for 1997-2004 Jeep models with a 4.0L inline 6 engine.
SIMPLE SETUP - Includes everything you need for a hassle-free installation—no mechanic required!
DURABLE DESIGN - Crafted with a glass fiber-backed heat barrier and thick aluminum skin for maximum durability.
KEEP YOUR COOL - Engineered to reduce fuel rail and injector temperatures, preventing vapor lock.
COMPREHENSIVE KIT - Comes with manifold heat shield, fuel rail cover, injector covers, and O-rings.

The Design Engineering 010378 fuel rail and injector cover kit is a must-have for Jeep enthusiasts with 1997-2004 models featuring a 4.0L inline 6 engine. This comprehensive kit includes a manifold heat shield, fuel rail heat cover, injector covers, and O-rings, all designed to reduce fuel temperatures and prevent vapor lock, ensuring optimal engine performance.

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Manufacturer	Design Engineering, Inc.
Brand	Design Engineering
Model	010378
Product Dimensions	15.88 x 4.78 x 39.07 cm; 272.16 g
Item model number	10378
Exterior	Painted
Manufacturer Part Number	10378
OEM Part Number	010378
Special Features	Reduces fuel rail & injector fuel temps
Item Weight	272 g

Design Engineering 010378 fuel rail and injector cover kit for jeep (1997-2004, 4.0l engine)

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