Description

Caterpillar 3406E Engine Overhaul Kit – For Prefix 5EK, 6TS, 1LW, 5DS, 2WS

Restore your Caterpillar 3406E engine’s power and reliability with our premium engine overhaul kit, designed for engine serial number prefixes 5EK, 6TS, 1LW, 5DS, and 2WS. This comprehensive in-frame rebuild kit includes all the essential components to bring your diesel engine back to OEM-level performance—without breaking the bank.

Whether you’re performing a full engine rebuild or routine maintenance, this kit ensures durability, fuel efficiency, and long engine life. Built to meet or exceed OEM specifications, it’s ideal for heavy-duty applications in trucks, industrial equipment, and off-road machinery.

Keep your diesel engine running optimally for less with one of our Caterpillar 3406E Engine Overhaul Kit

Engine Prefixes: 5EK, 6TS, 1LW, 5DS, 2WS

Caterpillar 3406E Overhaul Kit Contents:

6 x Liner Kits (Includes set of crevice seals)

6 x Piston Crown

6 x Piston Skirt

6 x Piston Ring-Sets

6 x Piston Pins & Retainers

1 x Overhaul Gasket Set

1 x Main Bearing Set (Std.)

1 x Rod Bearing Set (Std.)

1 x Thrust Washer Set

1 x Set of Injector O-Rings

1 x Rocker Cover Gasket

1 x Oil Pan Gasket

1 x Front Crank Seal

1 x Rear Crank Seal

Why Choose Our 3406E Rebuild Kit?

• Compatible with Caterpillar 3406E engines (5EK, 6TS, 1LW, 5DS, 2WS)

• High-quality aftermarket replacement parts

• Cost-effective engine rebuild solution

• Fast shipping and reliable customer support

Get your engine back on the road or job site with confidence. Shop now and experience premium parts at competitive pricing.

Frequently Asked Questions – CAT 3406E Overhaul Kit

Q1: Is this overhaul kit compatible with all Caterpillar 3406E engines?
A: This overhaul kit is specifically designed for Caterpillar 3406E engines with serial number prefixes 5EK, 6TS, 1LW, 5DS, and 2WS. Please check your engine’s serial number before ordering to ensure compatibility.

Q2: What’s the difference between an in-frame and an out-of-frame overhaul kit?
A: An in-frame kit (like this one) is used when rebuilding the engine without removing it from the vehicle. It includes essential internal components like pistons, liners, and gaskets. An out-of-frame kit may include additional components such as a camshaft, crankshaft, or cylinder head.

Q3: Are the components in this kit OEM or aftermarket?
A: This kit features high-quality aftermarket components that meet or exceed OEM specifications. They are built for durability, performance, and long engine life.

Q4: Does this kit come with everything needed for a complete rebuild?
A: Yes, it includes pistons, liners, bearings, seals, and a full gasket set—everything required for a complete in-frame engine rebuild. You may need to reuse or purchase separately any external components such as the oil pump, camshaft, or turbocharger.

Q5: Can I install this kit myself, or do I need a mechanic?
A: We recommend professional installation by a certified diesel mechanic. While experienced DIYers may be able to install it, precise measurements and torque specs are critical to avoid engine damage.

Q6: How do I verify which prefix my engine has?
A: The engine prefix is the first 3 letters/numbers of your engine serial number (ESN). It is typically stamped on the engine block or on the valve cover. If you’re unsure, contact us with your ESN and we’ll confirm compatibility.

Q7: Do you offer different bearing sizes?
A: This kit includes standard size bearings by default. If you need undersize or oversize bearings, please contact us before placing your order so we can customize your kit accordingly.

Q8: Is there a warranty on this overhaul kit?
A: Yes, our overhaul kits come with a limited warranty against manufacturing defects. Please contact our support team for full warranty terms and conditions.

Q9: How quickly do you ship the kit after I place my order?
A: Most orders ship within 1–2 business days. We offer fast shipping options and tracking details will be provided once your order is dispatched.

Q10: Do you offer support after purchase if I have questions during installation?
A: Absolutely. Our diesel parts experts are available to help with any questions before, during, and after your purchase. We’re just a call or message away.