Original Reproduction Single Groove Crankshaft Pulley
Fits 41-71 Jeep & Willys with 4-134 engine

Part # 638113

Original Reproduction Single Groove Crankshaft Pulley

Proper style single groove pulley for one belt applications. Original wide groove for early style belts. Fits both flat head and overhead valve motor.

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
638113

$89.99

MSRP:

$89.99

MSRP:

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This was installed by a professional engine rebuilder. It appears to be out approximately 1/4” farther than the water pump pulley, is this common with this pulley?

Willys Jeep Parts Tech:
No there are no fitment issues with this pulley. Email some photos of your installation to mike@kaiserwillys.com and we can help figure out what was installed incorrectly.

Is this a direct replacement for double grove alignment wise with single grove water pump

Willys Jeep Parts Tech.:
You typically wouldn't have that set up. They follow suit. Email mike@kaiserwillys.com to help.

Does this pulley have the timing notch?

Willys Jeep Parts Tech:
No you would have to indent your own on it.

Why do I need to call? I have a 1948 Willys and I need this New Single Groove Crankshaft Pulley - what do I need to know? Bill

Willys Jeep Parts Tech:
We have limited availability on these.