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Home » Shop by Vehicle » 41-45 MB » Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve Fits 41-71 Jeep & Willys

Replacement Engine Piston Cylinder Sleeve
Fits 41-71 Jeep & Willys

Part # A1272

Replacement Engine Piston Cylinder Sleeve (1 required per cylinder)

This will re-sleeve your 4-134 engine back down to standard bore 3-1/8". Typically requires machine shop to install.

Application:
4-134 engine

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

Part #	Price
A1272	$59.99 MSRP: $59.99

$59.99

MSRP: $59.99

Product Videos

Questions & Answers

My block is already .030 over, and one cylinder has a minor crack which I intend to sleeve. Can this sleeve be bored to .040"? I'd like to clean the bores on the three good cylinders with a .040" bore which will therefore require a .040" bore on the sleeve so that everything matches, is that doable? Thanks

Willys Parts Jeep Tech:
I would really recommend sleeving all 4 and going back to std.

We previously purchased an overhall kit for a 1960's Willy Jeep with standard pistons. 134F-HEAD-KIT Do these piston covers work on standard pistons?

Willys Jeep Parts Tech:
These are piston sleeves. They are for standard pistons. So yes, if you have standard pistons it will work with what you have.

How are the sleevs fitted?(L4-134) No bottom- or top stop, as I can see? Just "squeez fitted"? What tolerance should it be on the bore? Best, Ola

Willys Jeep Parts Tech:
See part number: M5529 install tool

Hi, Will this sleeve be okay to use with 030 pistons. Thanks.

Willys Jeep Parts Tech:
You really wouldn't want to sleeve at .030 - usually you wait until the engine is at 60 or 80.

Is this price for one set (4 cylinders) or just one cylinder?

Willys Jeep Parts Tech:
These are each.

Will this engine sleeve fit this size bore 3.1250"inches and 79.375mm. Regards Christy Wilson

Willys Jeep Parts Tech:
This will sleeve you back down to standard 3-1/8" in the 4-134 motor.

what are the thikness avaible?

Willys Jeep Parts Tech:
3.3" OD - it will sleeve you back down to standard piston 3-1/8".

What is the external diameter that are avaible

Willys Jeep Parts Tech:
3.3" OD

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