The order we never skip — which is why the wrong part does not reach your site.
01
Confirm
Nameplate, OEM number and working conditions — checked against your machine, confirmed in writing before you pay.
02
Verify
Photos and video of the actual part, packed and labelled, before it leaves. What you see is what ships.
03
Prevent
Send the hour-meter reading and we log the service interval — you get a message before the next one is due.
04
Dispatch
Nothing leaves Xi’an until you reply "ok". You approve, then we ship — not the other way round.
Confirm this part for my machine
Machine model and part number are what let us confirm fitment in writing. Message is optional.
Overview
Fitment Note: Confirmed by the removed gasket number and the engine model. Two pieces per engine, replaced as a pair; fit NEW cylinder head bolts. Tell us your machine model and we confirm fitment.
Specifications
MOQ
20 pcs
Type
Cylinder Head Gasket
Engine
CAT 3066 / S6KT / C6.4
Material
Non-asbestos Multi-layer Steel (MLS)
Position
Block to cylinder head
Replaces
CAT 222-8331
Shipping
Rail / Sea / Air
Warranty
12 Months
Lead Time
15-30 Days
Application
CAT 318C / 319C / 320B / 320C / 320D / 323D
Qty per Engine
2 pcs
Engine cylinder head gasket (head gasket) for the Caterpillar 3066 / S6KT / C6.4 diesel engine family (also 3064 / C4.2) — a direct replacement for the original Caterpillar 222-8331. Non-asbestos, multi-layer steel composite, fitted between the cylinder block and the cylinder head to seal the combustion chambers, coolant passages and oil galleries; two pieces per engine.
The head gasket is a critical sealing component. Typical failures are blow-out and burning under high temperature and pressure, causing gas and fluid leaks — abnormal coolant consumption, milky (emulsified) oil, bubbles in the radiator, low compression, power loss and white smoke, and in severe cases oil and coolant mixing. Normally replaced during cylinder-head work, an overhaul or after an overheating event.
Supplied as a single gasket (two per engine; replacing them as a pair is recommended). Confirm the removed part number and the engine model before ordering; clean the block and head faces and check flatness, tighten the head bolts in the specified sequence and torque / angle stages, and replace the head bolts as they are single-use items.
Abnormal coolant consumption, milky / emulsified oil, bubbles in the radiator or overheating, white smoke, low compression, power loss, hard cold starting, oil and coolant mixing.
Installation Tips
1. Clean the block and head faces; check flatness and for cracks.
2. Fit the gasket dry / as specified — do not use extra sealant on MLS-type gaskets.
3. Use NEW cylinder head bolts, tighten in the specified sequence in stages to the torque + angle spec.
4. Refill with the correct coolant, warm up and check for leaks; re-check after the first heat cycle.
