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Caterpillar 3406E, C15 Single Piece Piston Conversion Inframe Kit, PAI Brand

Caterpillar 3406E, C15 Single Piece Piston Conversion Inframe Kit, PAI Brand

Our Price: $3,329.37
NOTE: Our website does not automatically run your VIN/Engine Serial Number. We run it after your purchase to ensure you are getting the correct parts for your engine.
IMPORTANT: We will build your kit according to your original serial number. If you feel that your engine has ever been modified or was not previously rebuilt to the factory specifications please contact us before ordering.

Price may change upon customizations.

Performance Level:

* denotes required field

Main Bearing Size*
Rod Bearing Size*
Engine Serial Number*
Arrangement Number (Optional)
Brand: PAI
Mfg Warranty:  Click for Info
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Product Details & Specifications
This PAI Inframe Kit is designed specifically to replace 2-piece articulated piston number 1807352 (16.6:1 Compression Ratio) pistons. It replaces 2-piece pistons with single-piece steel 16:1 Compression Ratio, Monotherm Pistons.

This one piece conversion kit will work for any Caterpillar 3406E engine with 1LW, 2WS, 5EK & 6TS serial prefixes.

Since the installation of these parts requires custom tuning and was designed for high horsepower applications, there is no warranty offered

This engine kit is available in two different Performance Levels. 
  1. Our Standard Performance Inframe Kit will contain high quality components that meet or exceed OE Caterpillar quality standards across the board. 
  2. Our High Performance Inframe Kit is offered as an added advantage to our customers who are looking to raise the bar. This kit was specifically designed with performance and longevity in mind. The components included were designed and rigorously tested to provide several benefits to the original OE design. You can expect a greatly reduced amount of internal engine friction, increased strength, wear resistance, and temperature stability. Basically you are proving your engine with stronger parts, better fuel economy, longer engine life. If you are turning up the power to your engine, this is the internal structure you want!
Standard Performance Inframe Kit Includes
(6) Patented Crevice Seal / Cooling-Groove Type Cylinder Kits (Steel Piston, Piston with pin & locks, Piston Rings, Cylinder Liner, Liner Seals) 
(6) Rod Bearings
(1) Main Bearing Set
(1) Inframe Gasket Set
(6) Exhaust Manifold Gasket Assemblies
(1) Thermostat Kit
(1) Oil Pan Gasket Kit - Includes new isolation seal for stiffener plate

High Performance Inframe Kit Includes
(6) High Performance Cylinder Kits containing:
High Performance Single Piece Monotherm Pistons with Ceramic coated Crowns and Anti-Friction coated Skirts - Thermal barrier protects piston crown in temperatures of 2,000 degree (F) plus!
High Performance Piston Ring Set - Dry-Film Lubrication Coating provides solid lubrication, resulting in higher load capacity and friction resistance. 
High Performance Isotropic Superfinish Piston Pins - Extremely fine, non-directional surface that greatly reduces friction
PAI's Patented Crevice-Seal, Cooling-Groove Type Cylinder Liners with O-rings - Increased Strength, Temperature and Cavitation Resistant. Reinforced to prevent cracks to liner flanges. 
(6) High Performance Tri-Metal Rod Bearings with High Fatigue Strength Coating - Lowers friction to 1/3 of it's original value, thus preventing abrasive wear. 
(1) High Performance Tri-Metal Main Bearing Set with High Fatigue Strength Coating - Lowers friction to 1/3 of it's original value, thus preventing abrasive wear. 
(1) Inframe Gasket Set
(6) Exhaust Manifold Gasket Assemblies
(1) Oil Pan Gasket Kit - Includes new isolation seal for stiffener plate


If you require a complete lower gasket set with crank seals and are unsure which part number to order, please give us a call with your Engine Serial Number and we'd be happy to assist. 

replaces KIFSPC15/02/CS, IFSPC15/02/CS, RP7748

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