1994 jeep grand cherokee engine 4.0 l 6 cylinder

Bought this suv brand new in 1995, very proud of it. Had synthetic oil from day one. Engine and transfer case are still original. The transmission went at 130k. It was replaced and shortly after the torque converter went. Had replaced the water pump, belt pulley, A/C condenser, the vehicle information center (turns out the solder on the connector broke, just had to resolder), headlights upgraded as the original is too dim, muffler, cat converter, front and rear bearings and seals. Front passenger power seat motor is broken. It is not quiet inside, but I got used to it after all this time. Also, the front passenger floor has rust because of the A/C water coming back inside, really bad design. It is still one click start in the morning, engine's still great. My son who is 22 drives it now. It is my most reliable unreliable car.

1994 jeep grand cherokee engine 4.0 l 6 cylinder

1994 jeep grand cherokee engine 4.0 l 6 cylinder

The Quadratec® Difference

Replacement 4.0L I-6 Engine

Quadratec Part #: 51107-0003

ATK Engines Part #: ZJ

Description

ATK engines with cylinder heads are engineered & fully remanufactured, using only the highest-quality parts and precision-machined tolerances. These Engines are backed by a 3-year - Unlimited mile warranty! All of ATK's manufacturing facilities are both QS-9000 and ISO 9001 certified, making them one of few engine remanufactures in the world to do so. Every engine is tested for compression, oil pressure, oil leaks, engine noise and general operating condition before shipment. Engines are shipped by truck freight. When you're ready to return your exchange core - the process is simple with our 360-Degree Core Guarantee. Simply stated, your engine core need only be the same type as the one supplied, complete with no visible damage and be able to turn over 360 degrees. Core pickup is easy. Place it in the crate and call the pickup number provided with the bill of lading. We pay the freight back. A Quadratec representative will contact you regarding the exact year of your existing engine, along with VIN number and additional shipping details. Please provide a daytime phone number and/or email when ordering.

Details

  • Learn More
  • Specs
  • Fitment

These motors include a full range of new parts including most of these components: balanced pistons, balanced rods, valves, valve guides & lifters, rings, wrist pins and bushings, main connecting rod and camshaft bushings, timing chain, oil pump, brass freeze plugs, as well as a premium gasket set and all oil seals.

All engine blocks are magna-fluxed, bored, precision honed and mains are line-honed. The camshaft bearings are line-bored for accurate center-to-center clearance; all blocks & cylinder heads precision surfaced; cylinder heads magna-fluxed & machined for three-angle valve seats. All crankshafts are stress-relieved, precision ground and micro polished. Camshafts are precision ground or replaced with new.

Installation Notes

Installation Difficulty:

1994 jeep grand cherokee engine 4.0 l 6 cylinder
Level 4Experts Only

1. Left Head Cast #7119 / 7120. 2. Block Cast #405. 3. Fuel Injected, Gas, Overhead Valve, Rear Crank Pilot Hole is 7/8" Deep.

Installation Time: 12-16 hours

Warranty

3 Years with Unlimited Mileage Warranty.

  • Engine Size: 4.0L I-6
  • Engine Fuel: Gasoline

  • Jeep Wrangler (YJ)

  • 1995 Jeep Wrangler (YJ)
  • 1994 Jeep Wrangler (YJ)
  • 1993 Jeep Wrangler (YJ)
  • 1992 Jeep Wrangler (YJ)
  • Jeep Cherokee (XJ)

  • 1995 Jeep Cherokee (XJ)
  • 1994 Jeep Cherokee (XJ)
  • 1993 Jeep Cherokee (XJ)
  • 1992 Jeep Cherokee (XJ)

  • Jeep Grand Cherokee (ZJ)

  • 1995 Jeep Grand Cherokee (ZJ)
  • 1994 Jeep Grand Cherokee (ZJ)
  • 1993 Jeep Grand Cherokee (ZJ)
  • Jeep Comanche (MJ)

  • 1992 Jeep Comanche (MJ)

Customer Submitted Photos

ATK Engines Replacement 4.0L I-6 Engine Reviews

Exactly as advertised. My 1994 wrangler blew the motor after 175k miles. I ordered this engine and installed it in my home garage in 2 days.

I installed a new oil pan, timing chain cover, water pump, shock mounts and thermostat housing. Runs like it’s brand new.

Not happy waited 5 weeks when they said it was in stock ready to ship , then it shows up .060 over bore on the cyl and the crank looks like it’s been dropped down a stairwell ! Your paying top dollar of your hard earned money , spend it somewhere else , I’m going to have to upgrade my cooling system because it runs so much hotter

  • Submit your own Review

Questions

How much horsepower does a Jeep 4.0 V6 have?

The Jeep 4.0L engine is a 4.0L (241.6 ci) 6-cylinder engine. It has a 3.8-inch bore and 3.41-inch stroke with 12 overhead valves. This engine gets an 8.8-to-a compression ratio and produces 190 horsepower at 4600 RPMs and 235 lb-ft. Before you buy any vehicle, you need to know all of the specs and features.

Is the Jeep Grand Cherokee V6 reliable?

The Jeep Grand Cherokee is considered average in terms of dependability. It received a reliability rating of 3.5 out of 5 from RepairPal and ranked 15th out of the 26 midsize SUVs reviewed based on data from different model years.

What is the V6 engine in a Jeep Grand Cherokee?

3.6L Pentastar® V6 Engine.

Is the 4.0 a good motor?

The Dual VVT-i 4.0 V6 engine found in the 09+ models is smooth, quiet, and reliable with engine longevity easily reaching over 200,000 miles (320,000 km). It's no secret that regular maintenance and using high-grade oils and lubricants is the key to reliability on almost any engine.