Every part is checked against your machine before it ships: fitment confirmed in writing, photos and video before dispatch, quotation in 24 hours. Prices are quoted in CNY ex-works Xi’an, with freight shown as its own line. Tell us your model and hour-meter reading and we message you before the first service interval is due. Parts are sourced, inspected and consolidated in Xi'an — delivered to Mongolia first, other destinations quoted once import requirements are confirmed.
Every part is checked against your machine before it ships: fitment confirmed in writing, photos and video before dispatch, quotation in 24 hours. Prices are quoted in CNY ex-works Xi’an, with freight shown as its own line. Tell us your model and hour-meter reading and we message you before the first service interval is due. Parts are sourced, inspected and consolidated in Xi'an — delivered to Mongolia first, other destinations quoted once import requirements are confirmed. Service reminders need no login: send the model and hour-meter reading by WhatsApp or e-mail and we keep the record for you. A free SCM portal account is available if you also want your quotes and orders in one place.
We don’t just sell you parts — we confirm the fitment in writing before you pay, send photos and video before it ships, and message you before the first service is due.
Four commitments in writing — so you can place a first order without risking your money.
Send a nameplate photo or OEM number. We check it against the machine and confirm the fitment in writing — no guessing on your side.
If the part does not fit the machine we confirmed, we send the correct one at our cost — freight paid by us, not you.
If the re-shipment does not solve it, we refund the part value in full. No arguments, no store credit.
First order on the Mongolia line up to 30 kg ships free — one time only, our cost, so you can test us. Above 30 kg we quote freight at cost before you commit.
Tell us the machine model or OEM number. We confirm the fitment in writing, and if you send the hour-meter reading we message you before the first service is due.
Enter the machine model or OEM part number — matched with OEM-supplier or quality aftermarket parts, fitment confirmed in writing before you pay.
Send the machine model and the hour-meter reading by WhatsApp or e-mail. We keep the record and message you before the first service interval is due — filters, seals, oils.
For repair shops, rental companies and contractors — track stock by OEM number in the cloud, no ERP needed.
On-demand sourcing — we find exactly what you need, fast, with fast-moving lines prioritised at our Xi’an consolidation point.
One message is enough — part number or a photo of the machine nameplate.
Our SCM system cross-checks verified suppliers for quality, price and lead time.
Fitment confirmed, pre-shipment photo/video sent for your approval.
From a part number to a managed equipment record — one closed loop.
Popular fast-moving lines — handled at our Xi’an consolidation point; other parts sourced to order and consolidated.
How each part fails, what to measure before you replace it, and why the cheap version fails first — written from the bench, not from a brochure.
A piston fails in three ways: the ring grooves wear oversize, the crown cracks from heat, or the skirt scuffs
LinerCylinder liner: honing pattern and what cavitation really isA liner does not just guide the piston. Its surface holds the oil film and its outer wall sits in coolant. Bot
BearingEngine bearings: the layer stack, and the 20 mm ruleA bearing is not a plain bush. It is a steel back, a bonding layer, and a running layer chosen for load. Measu
GasketGaskets: choosing the material, and reading a failed head gasketA gasket is a controlled leak path that has to seal three different things at once: combustion pressure, coola
Free tools for workshops, dealers and fleet owners — tap to chat.
Better than parts: fitment confirmed in writing before you pay, photos and video before dispatch, and a first-order guarantee — with parts matched by OEM number, machine model or nameplate.
Send a part number, nameplate photo or machine model — you get a priced quotation with a per-line lead time within 24 hours on working days.
Every order is photographed and filmed after packing — parts, labels and quantities. Nothing leaves Xi’an until you reply "ok".
One piece is a valid order — built for repair shops and small dealers who cannot carry stock.
Fast-moving lines (injectors, seal kits, filters, bucket teeth, pins) sit in the $20–200 range. Assemblies and heavy parts are quoted per item.
Send us the machine model and the hour-meter reading — we keep the record and message you before the first service interval is due (filters, seals, oils). As records build up, reminders extend to the following intervals.
No ERP? Use ours free: stock by OEM number, minimum levels and reorder alerts — for repair shops, rental fleets and contractors.
3–12 months warranty on wear parts; common-rail injectors 3–6 months (subject to correct installation).
Parts consolidated in Xi’an, shipped to Mongolia by rail and truck.
Parts matched to major machine and engine brands.
CAT
KOMATSU
HITACHI
VOLVO
DOOSAN
HYUNDAI
SANY
XCMG
SDLG
WEICHAI
CUMMINS
SHANTUIBrand names, logos and OEM numbers are used for fitment reference only. Smile Machinery is an independent supplier and is not affiliated with or authorized by the equipment manufacturers shown.
Real photos from the partner warehouses and dealer yards we source through.
We supply OEM-supplier parts, branded parts and high-quality aftermarket replacements. OEM numbers are listed for reference so you can cross-check fitment, and we confirm the grade in writing before you pay.
Common-rail injectors carry a 3-6 month warranty, subject to correct installation. Damage caused by poor fuel quality or contaminated fuel is not covered.
Yes — common-rail injectors for Weichai WP10/WP12, Cummins ISG, 6BT/6CT and Sinotruk engines, plus injector repair kits. Send your injector Bosch code for a cross-check.
We supply OEM-supplier, branded and quality aftermarket replacement parts. OEM numbers are listed for reference only so you can cross-check fitment.
Our MOQ is 1 piece for most items, which suits small workshops and dealers.
Most parts are sourced to order and consolidated in Xi\u2019an before dispatch. We give you a per-line lead time in the quotation instead of a blanket promise; ready items can move in days, made-to-order parts take longer. For Russia and Central Asia we regularly use the China-Europe Railway Express.
Send the machine brand & model, or the OEM part number / VIN via WhatsApp. Our engineers cross-check before confirming.
We don’t just sell you parts — we confirm the fitment in writing before you pay, send photos and video before it ships, and message you before the first service is due.
Three things let us quote accurately: the machine model, the part number or a nameplate photo, and the hour-meter reading if you have it. We do not quote before that — guessing is how wrong parts get shipped.
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