Fan Belt
Fits 41-71 Jeep & Willys with 4-134 engine

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Fan Belt
Fits 41-71 Jeep & Willys with 4-134 engine

New Replacement Fan Belt.

Just like original wide track fan belt for single groove pulleys. Goes around water pump, generator, and crank pulleys.

4-134 engine

41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
46-53 Truck
46-53 Station Wagon
48-51 Jeepster

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Availability: In stock

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Questions: I have a 1954 Army Jeep with a plow on it the plow pump is mounted on top of the generator and all 4 of the pulleys are wide and I need a wide belt to fit do you have a wide belt that will fit.
Question By: Jon H. Roberts on Nov 16 2019 9:43 PM
647629 is a wide belt but you'll probably need a longer one to accommodate the extra pulley. Email a picture of your set up.
Answer By: Willys Jeep Parts Tech on Nov 18 2019 5:51 AM
Questions: My 46 CJ2 engine has a double crank shaft pulley, will the 647629 fan belt fit this engine? Thank you
Question By: jimbob on Jan 10 2019 2:07 PM
That would be unoriginal if your double groove. But if you are double groove then use part number: 118866
Answer By: Willys Jeep Parts Tech on Jan 10 2019 9:48 AM
Questions: I purchased a wide belt from NAPA and my crank pulley and water pump pulley are wide but I have an alternator and it has a narrow pulley. Will your belt work on my jeep if I can get it tight enough?
Question By: David Antoniotti on Mar 18 2017 6:14 PM
I would address the improper pulley on your vehicle. It may work if tensioned properly though and not slip, but its not ideal.
Answer By: Willys Jeep Parts Tech on Mar 20 2017 6:03 AM
Don't do it. Get the right size pulley or you will tear up your bearings in the water pump and alt.
Answer By: on Apr 13 2017 10:14 PM
Questions: Is it the same belt for both 6 and 12 volt systems? (i.e. WO - A9490 / WO - A9490-12)
Question By: Leif Arneson on Oct 27 2014 12:00 AM
There is no difference between the two.
Answer By: Willys Tech on Oct 27 2014 12:00 AM
Questions: I have a belt for my L134 engine and it wont fit to small its a three five auto belt the number is 17x1075 is the above belt larger and the correct belt for my engine
Question By: lester on Nov 9 2012 12:00 AM
This is the proper wide belt for your fan belt.
Answer By: Willys Tech on Nov 12 2012 12:00 AM