
China procurement desk
Heavy-duty truck & trailer parts
OEM number quotes from China. Send the OE code and the desk replies with a procurement quote.
Quote from these hubs

Brakes
Brake chambers
Quote T30/30 and Type 30 spring brake chambers from a China procurement desk. OE-number RFQ for truck and trailer air brakes.

Brakes
Brake shoe lining kits
Quote 4707QP, 4515Q, 4709, and 4515QHD brake shoe kits by OE or FMSI-style number. Heavy-duty truck and trailer lining kits from China.

Brakes
Slack adjusters
Quote automatic slack adjusters such as R801073, R803110, and CS56040. Send spline, arm length, and OE number. China procurement desk.

Suspension
Air springs
Quote truck and trailer air springs by OE number, including W01-358-9781 and the 1R12-603 cross-reference. Rolling lobe and suspension bags.

Chassis
Landing gear
Quote two-speed and heavy-duty semi trailer landing gear from China. OEM-style procurement by specification.

Chassis
King pins
Quote 2 inch and 3.5 inch (90mm) trailer king pins, including buyer codes KZ1012 and KP0885. Bolt-in and replaceable styles.

01
Send the OE number
Paste the code from the tag, the casting, or the invoice. A model year is not required.

02
The desk matches the row
Carmally checks the number against the catalog and the sourcing network. Unknown numbers are quoted as a search, not invented.

03
You receive a quote
Price, lead time, and packing come back by email. Nothing ships until you accept the quote.
OE catalog rows
All categories
CM-BC-001
T30/30 Standard Stroke Spring Brake Chamber
T30/30 · T3030
OE catalog row

CM-BS-001
4707QP Brake Shoe & Lining Kit
4707QP · KSF5204707QP
OE catalog row

CM-SA-001
R801073 Automatic Slack Adjuster
R801073
OE catalog row

CM-AS-001
W01-358-9781 Air Spring
W01-358-9781 · 1R12-603
OE catalog row

CM-KP-001
KZ1012 Trailer King Pin
KZ1012
OE catalog row
OE guides
Checklists and FAQ templates for quoting by number — written so buyers and search engines get a clear answer first.
How to quote truck and trailer parts by OE number
Paste the OE or casting number from the part, add quantity and destination, and Carmally returns a procurement quote from China — without inventing fitment from a truck model year.
Brake chamber tags and RFQ checklist
For a brake chamber quote, send the type or OE on the tag (for example T30/30), the stroke if marked, quantity, destination, and a photo of the clamp band when the stamp is unclear.
How to quote brake shoe and lining kits by number
Send the FMSI-style or OE number on the old shoe or lining (for example 4707QP or 4515Q), say whether you need lining, hardware, or reman, then add quantity and destination.