Sealed 88NP 40 piston set for the 1966-1973 Jeep Commando 4-cylinder 2.2L and other vehicles carries combustion pressure down to the connecting rods. The set meets or exceeds OEM specifications and aims for the performance and dependability of original equipment pistons.
- Sealed Power Vintage line for classic engine rebuilds
- Cast aluminum pistons with a flat head
- Cast from FM132 eutectic proprietary alloy
- 0.040 inch oversize for a 3.1250 inch bore diameter
- Minimum clearance of 0.0015 inch at the bottom of the skirt
Quick facts
- Part: Sealed 88NP 40 piston set
- Also called: engine piston set
- Fits: 1966-1973 Jeep Commando 4-cylinder 2.2L and other vehicles
- Material: Cast aluminum
- Condition: New
Oil burning, blue exhaust smoke and low compression can mean worn pistons. Worn piston rings, valve guide seals or a damaged cylinder wall can be behind those signs too, so find the cause before you buy pistons.
Fits
This piston set is listed for a wide range of Jeep and Willys models. The best known are the 1959-1971 Jeep CJ5 4-cylinder 2.2L and the 1959-1971 Jeep CJ6 4-cylinder 2.2L. The 1966-1973 Jeep Commando 4-cylinder 2.2L takes four pistons. If your Jeep or Willys is not named here, look up its year and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 4
- Bore diameter: 3.1250 in
- Oversize: 0.040 in
- Piston pin outside diameter: 0.812 in (20.625 mm)
- Compression height: 2.167 in
- Compression ring thickness: 0.0937 in (top and second)
- Oil ring thickness: 0.1875 in
- Minimum clearance: 0.0015 in at bottom of skirt
Build and materials
- Piston material: Cast aluminum
- Piston head type: Flat
- Condition: New
- Country of origin: India
In the box
One cast piston set. Assembly lubricant is not included.
Interchange: 801540 · P602040 · 92606040 · TC2756040 · 2242756040 · 88AP40 · 2606040 · L2076CF40
This part cross-references / interchanges with the following part numbers:
801540, P602040, 92606040, TC2756040, 2242756040, 88AP40, 2606040, L2076CF40
Frequently Asked Questions
Will Sealed 88NP 40 pistons fit a 1966-1973 Jeep Commando 4-cylinder 2.2L?
Yes. Sealed 88NP 40 is listed for the 1966-1973 Jeep Commando 4-cylinder 2.2L, and the 1959-1971 Jeep CJ5 4-cylinder 2.2L is covered as well.
Is this engine piston set oversized?
Yes. Sealed 88NP 40 is a 0.040 inch oversize set, made for a bore diameter of 3.1250 inches.
What material is the Sealed 88NP 40 piston set made of?
The pistons are cast aluminum with a flat head, cast from FM132 eutectic proprietary alloy.
What can worn pistons look like before an engine rebuild?
Oil use, blue exhaust smoke or low compression can mean worn pistons. A shop can confirm it with a compression or leak-down test.
Does this piston set come with assembly lubricant?
No. Assembly lubricant is not included with Sealed 88NP 40. The listing is one cast piston set.
