Ford 4.0L Cologne V-6

4.0L V-6 Engine Specs, Information

The 4.0L V-6 was introduced for the 1997 model year in the Ford Explorer. The engine was manufactured by Ford Motor Company at their facility in Cologne, Germany. The engine was used extensively in the Ford Ranger, Mazda B Series, and Ford Explorer/Mercury Mountaineer. A single overhead camshaft variation of the engine replaced the original overhead valve (standard cam-in-block) design for the 2001 model year.

The SOHC version of the engine features a unique timing chain system consisting of three individual timing chains and an intermediate "jackshaft" in place of the traditional camshaft in an OHV setup. One timing chain connects the crankshaft to the jackshaft at the front of the engine. A second timing chain connects the jackshaft to the left hand camshaft at the front of the engine. A third timing chain connects the jackshaft to the right hand camshaft at the rear of the engine. The location of the right hand timing chain makes it relatively difficult to replace and the complexity of the timing system commonly contributed to a distinct rattle noise during operation.

Ford 4.0L V-6 Specs


Ford 4.0L V-6

Engine Family:

Ford Cologne

Production Plant(s):

Ford Engine Plant, Cologne, Germany


• 2001 - 2011 Ford Ranger
• 2001 - 2010 Mazda B Series
• 1997 - 2010 Ford Explorer, Mercury Mountaineer
• 2005 - 2010 Ford Mustang


60° V-6


245 CID, 4.0 liters

Deck Height:

8.858" (225 mm)

Firing Order:


4.0L V-6 cylinder numbers

Engine Block Material:

Cast iron

Cylinder Head Material:


Cylinder Bore:

3.95" (100.33 mm)

Cylinder Stroke:

3.32" (84.33 mm)

Compression Ratio:

9.0 : 1


Naturally aspirated


Overhead valve (OHV) through 2000 model year, single overhead camshaft (SOHC) 2001+

Fuel System:

Sequential multi-port fuel injection

Engine Oil Capacity:

5 qts w/ filter

Peak Horsepower:

Various ratings, including:

• 155 hp- 160 hp @ 4,200 rpm (OHV)
• 210 hp @ 5,250 rpm (SOHC)
• 207 hp @ 5,250 rpm (2011 Ford Ranger)

Peak Torque:

• 225 lb-ft @ 2,400 rpm (OHV)
• 254 lb-ft @ 3,000 rpm (SOHC)
• 238 lb-ft @ 3,000 rpm (2011 Ford Ranger)