Aftermarket Parts Specialist · JCB 3CX / 4CX Backhoe Loaders
JCB Backhoe Loader Parts, OE Numbers In Stock, Built to Your Spec
Gearbox housings, gears, shafts, U-joints, bushings, flanges and valve bodies — OE-quality replacements with full cross-reference numbers, plus custom manufacturing from your drawings or samples.
- OE cross-reference numbers
- Custom parts from drawings
- Worldwide shipping
Browse by category
Seven Product Lines, One Supplier
Every part is manufactured or sourced to OE specification and inspected before shipment. Click a category to see the full range with OE numbers.
Gearboxes & Housings
Cast iron transmission housings, covers and complete assemblies for JCB 3CX/4CX backhoe loaders.
Browse category 4 partsGears
Bevel pinions, crown wheels and matched gear pairs — cut, carburized and ground to OEM tooth profiles.
Browse category 9 partsShafts & Axles
Splined shafts, drive shafts, axle shafts and selector shafts in hardened alloy steel.
Browse category 5 partsUniversal Joints & Yokes
U-joint assemblies, crosses, yokes and slip yokes for driveshaft and PTO applications.
Browse category 4 partsBushings & Sleeves
Bearing steel and bronze bushings, sleeves and repair kits for axle and transmission rebuilds.
Browse category 7 partsFlanges & Covers
Hub flanges, retainer flanges, flange pairs and sealed covers for drivetrain connections.
Browse category 7 partsTransmission Internal Parts
Bearing housings, valve bodies, shift forks, control arms and oil tubes inside the transmission.
Browse categoryBest sellers
Most Requested Parts
Send us the OE number or your machine model — we confirm fitment before you order.
Manufacturing capabilities
From Casting to Finished Part
Vertical integration keeps quality and cost under control — critical for drivetrain parts that work under load.
Precision Casting
Gray and ductile iron castings for housings, valve bodies and covers, machined in-house.
CNC Machining
Milling, turning, boring and drilling with tight tolerances on critical mounting surfaces.
Gear Cutting & Grinding
Spiral bevel and spur gears cut, heat-treated, and ground for quiet, durable meshing.
Heat Treatment
Carburizing, induction hardening and through-hardening matched to each part load profile.
Forging
Forged shafts, yokes and flanges for superior fatigue resistance under heavy loads.
Assembly & Run-off Testing
Matched sets lapped together, assembled units run-tested under load before packing.
How we work
From OE Number to Delivered Part
- 01
Send Your Inquiry
Message us the OE number, machine model, or a photo of the part on Telegram.
- 02
Fitment Confirmation
We cross-reference the OE number and confirm compatibility with your machine serial.
- 03
Quotation
Detailed quote with unit price breaks, MOQ, lead time and shipping cost within 24 hours.
- 04
Production
Manufacturing with weekly photo updates. Samples or first articles available on request.
- 05
Inspection
Dimensional reports, hardness tests and material certificates supplied with each batch.
- 06
Delivery & Support
Export packing, sea/air freight to your port or door, plus after-sales parts support.
Quality assurance
Tested Like the Original
Drivetrain parts fail loudly. We test hardness, dimensions and fitment so your machine stays on the job.
- Material certificates for every batch of castings, forgings and bar stock
- Hardness testing after heat treatment — report included in shipment docs
- Full dimensional inspection on mating surfaces, splines and gear teeth
- Matched gear pairs and flange sets lapped and supplied together
- Pre-shipment photos and videos for your approval before the balance payment
Fitment guaranteed — or replaced
If a part we confirmed as compatible does not fit, we replace it or refund. Send your machine model and serial number and we double-check before shipping.
Why Quanxinfa
The Parts Partner Workshops Trust
OE Cross-Reference
Every part carries a full OE number cross-reference, so ordering is as easy as with your dealer.
Factory-Direct Pricing
You buy from the manufacturer — dealer and importer margins stay in your pocket.
Mixed Orders Welcome
Combine housings, gears, seals and hardware in one shipment with one consolidated invoice.
Custom & Obsolete Parts
Discontinued or damaged part? Send the sample or drawing — we reproduce it to spec.
Transparent Production
Photo and video updates from the shop floor for every production order.
After-Sales Support
English manuals, installation guidance and a reliable spare parts supply for repeat orders.
Common questions
Frequently Asked Questions
Are your parts genuine JCB parts?
No. We manufacture high-quality aftermarket replacements compatible with JCB 3CX/4CX machines. They are not genuine JCB parts, and JCB is a trademark of its respective owner. Each part carries an OE cross-reference number for easy identification.
How do I order the right part?
Send us the OE number (e.g. 450/10200), your machine model and serial number, or a clear photo of the old part on Telegram. We confirm fitment before you pay.
What is the minimum order quantity?
MOQ varies by part — typically 5–50 pieces as listed on each product page. Mixed orders across categories are welcome, and sample orders are accepted for first-time customers.
How long is the lead time?
Stocked items ship in 3–7 days. Production items take 15–40 days depending on the part (each product page lists its lead time). Express production can be arranged for urgent breakdowns.
Which payment and shipping terms do you accept?
30–50% T/T in advance, balance before shipment (photos/videos provided for confirmation). We ship by sea (FCL/LCL) or air freight worldwide with full export documentation; DDP door delivery can be quoted.
Can you manufacture parts not listed in the catalog?
Yes. Custom production from drawings, samples or even worn parts is our core business. Send what you have and our engineers will review manufacturability within 24 hours.
Get in touch
Send an OE Number, Get a Quote
The fastest way: message us on Telegram with the OE number or a photo of the part you need.