Double Groove Crankshaft Pulley
Fits 41-71 Jeep & Willys with 4-134 engine

Part # 646699

New Double Groove Crankshaft Pulley

Proper heavy duty military build. Constructed in the USA.

Set to the original diameter for your double fan belts to run on. Don't settle for the smaller diameter, unoriginal pulleys.

Application:
4-134 engine

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
50-52 M38
52-66 M38A1
46-53 Truck
46-53 Station Wagon
48-51 Jeepster

Product Pricing Table
Part # Price
646699

$159.99

MSRP: $159.99

$159.99

MSRP: $159.99

1 Item has been added to your cart!
Close

Product Videos

Questions & Answers

Please Wait...

Ask Question Add Answer

All questions will be displayed after moderation. All answers will be displayed after moderation.

If I use this double pulley with the standard single pulleys on the water pump, will it align properly? I need the second pulley for other options.

Willys Jeep Parts Tech:
Email mike@kaiserwillys.com more vehicle information and we can help out.

What's the second grove for?

Willys Jeep Parts Tech:
They had double groove water pump and generator pulleys. It was basically a back up belt if one broke in the field.

Is this pulley made to replace your Item # 646698? If so, does this pulley require machining as well and why didn't the sheave sizes stay the same?

Willys Jeep Parts Tech:
This is a direct fitment US made double groove pully for your 4-134 motor and is ready for install and properly made.

Hi, Is the outside pully wider than the inside pully

Willys Jeep Parts Tech:
No, they are the same like original.