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 bushing number and measured dimensions (OD / ID / length). Engine and machine model alone are not sufficient because of rebuild history.
Specifications
MOQ
10 pcs
Type
Camshaft Bushing
Engine
CAT 3066 / S6K / C6.4
Material
Bearing Bronze / Alloy
Position
Engine block (camshaft journal)
Replaces
CAT 5I-7527
Shipping
Rail / Sea / Air
Warranty
12 Months
Lead Time
15-30 Days
Application
CAT 320B / 320C / 320D
Aftermarket camshaft bushing (camshaft bearing bush) 5I-7527A — a direct replacement for the Caterpillar 5I-7527 bushing, which has been discontinued by the original manufacturer. It fits the Caterpillar 3066 / S6K / C6.4 diesel engine family (also used in 3064 / C4.2 references), commonly installed on CAT 320B / 320C / 320D excavators.
The camshaft bushing carries the camshaft journal in the cylinder block. When it is worn, camshaft end-float and radial play increase — typical signs are a metallic rattle from the timing side, low or unstable oil pressure, abnormal valve timing and, in severe cases, camshaft journal scoring.
Supplied as a camshaft bush (sleeve). Confirm standard or oversize, and whether a reamed/line-bored fit is required, before ordering. Before shipment we verify the removed bushing number, the engine reference and the measured bore; please send OD / ID / length if you have them, because the part is matched by size.
Key Features
Direct replacement for CAT 5I-7527 (discontinued by OEM)
This is a partial reference. Send your part number or machine model — we source and confirm it for you.
Part Number Cross Reference
Original (OEM)
5I7527 / CA5I7527 / 5I-7527A / 5I-7527
Brand No.
CA5I7527
Cross Reference
5I-7527
Cross Reference
5I7527
Cross Reference
CA5I7527
What you're quietly worried about
We put it on the table and say exactly how we handle it.
Concern
Impact
How we help
Wrong part model
Installation failure, extra cost
Confirmed by number, model and photos before shipment.
Unclear part number
Delays in sourcing
We identify the part from whatever info you have.
Poor quality
Downtime and complaints
Stable replacement elements; every unit checked.
Slow response
Project delays
Reply within 24 hours.
Many suppliers
Complex procurement, higher cost
Wide coverage, mixed orders from one source.
Shipping risk
Damage or late arrival
Export packing and the right shipping method.
High MOQ
Financial risk
Flexible quantity — start small.
No after-sales
Problems unresolved
We stay in touch after delivery.
How we work
Every step — what you do, what we do.
01
Send your request
Send part number, machine model or photo — whatever you have.
02
Model confirmation
We confirm the correct part from your number, model and photos.
03
Quotation & details
You receive price, availability and specifications.
04
Order confirmation
We arrange preparation on the agreed terms.
05
Inspection & packing
We check the parts and send photos before dispatch.
06
Shipping & delivery
Express, air, rail or sea — with tracking after dispatch.
Frequently asked questions
Is 5I-7527A the same as 5I-7527?
5I-7527A is our replacement for the original Caterpillar 5I-7527 camshaft bushing. The original number is kept for cross-reference.
What engine does it fit?
Caterpillar 3066 / S6K / C6.4 (also 3064 / C4.2), commonly on CAT 320B / 320C / 320D excavators. Final fitment is confirmed by the removed bushing number and its dimensions.
Standard or oversize?
Please tell us which size you need. Camshaft bushings are matched by dimension, and an oversize may be required after line boring.
What should I send to confirm?
Photos of the old bushing, the engine nameplate, your machine model and, if possible, the outer / inner diameter and length.
