Section 1 — What is Case 851 Hub Assembly?
The Case 851 front hub planetary assembly is a complete Carraro axle wheel hub unit used on CNH / Case backhoe loaders. It combines the wheel hub flange, planetary reduction gears (sun + three planets + ring gear), planet carrier, bearing seats and oil seal interface in one heavy-duty assembly for front axle torque transfer.
Used in demanding construction site conditions — 4WD front drive, high load, frequent steering and brake heat cycles.
FAQ — 20 Questions
What is Case 851 hub assembly?
The Case 851 front hub planetary assembly is a complete Carraro-type front axle wheel hub with integrated planetary reduction gears, planet carrier, ring gear and hub housing — used on Case / CNH backhoe loaders for high-torque 4WD front axle drive.
Is this a Carraro hub assembly?
Yes — Case 851 front axle systems commonly use Carraro planetary hub architecture. Pioneer Mitra supplies OEM-reference Carraro planetary hub assemblies for Case 851 — confirm exact part number with photo before dispatch.
What is part number 100554A1?
100554A1 is a widely referenced Case backhoe 4WD front axle planetary assembly interchange number. Cross-check 100553A1 and Carraro 144666A1 / 441122 on your old unit.
Does this fit Case 851EX and 851NX?
Designed for Case 851 backhoe loader family including 851EX and 851NX variants with Carraro front axle. Send dataplate and old hub photo — we confirm in 10 minutes on WhatsApp.
Is planetary gear included in the assembly?
Yes — complete planetary hub assembly includes sun gear, three planet gears, planet carrier and ring gear inside the hub housing (as per stock batch). Specify complete assy vs components on RFQ.
What components are visible in the hub?
Planetary gears, planet carrier, ring gear, hub housing with bolt flange, bearings, oil seal area, fasteners — see warehouse photos on this page.
Why do Case 851 front hubs fail?
Bearing wear, water ingress past seal, planetary gear tooth pitting, overloading on 4WD front axle, lack of gear oil service.
Carraro genuine vs aftermarket hub — difference?
Genuine Carraro/OEM-reference offers correct gear mesh, bearing life and fitment. Low-grade aftermarket may need modification and shorter service life — see comparison table on this page.
What is export price for Case 851 hub from India?
FOB New Delhi confirmed within 24h on WhatsApp +91 96720 55759. IndiaMART listings show ~₹25,000 for 851 hub assembly — export price depends on qty and destination.
Do you export Case 851 parts to UAE?
Yes — air freight 5–7 days Dubai. Full export documentation for CNH / Case construction spares.
Do you export to Nigeria or Kenya?
Yes — Lagos / Nairobi air freight with Form M support where required.
How to confirm compatibility before ordering?
WhatsApp photos: old hub face, planetary gears, casting marks, Case machine model plate, existing part number if visible.
Is this the same as wheel hub 5169118?
5169118 is a different Case loader wheel hub listing on IndiaMART. Planetary front hub assy for 851 is a separate assembly — always match by photo and part number.
What is 175974A1?
175974A1 appears on marketplace listings for Case backhoe loader wheel hub — may be related CNH part family. Send your unit photo for cross-reference.
Do you supply complete assembly or parts only?
Complete front hub planetary assembly export as primary supply. Carrier, gears, seals quoted separately on request.
What HSN code for export?
Typically 84834000 or 87089900 depending on customs classification — confirm with your broker.
How to install Case 851 planetary hub?
Follow Case / CNH workshop manual — remove wheel, hub nut, extract old hub assy, replace seal and bearings as required, torque fasteners to spec, refill axle oil.
Lead time for export dispatch?
In-stock: 1–3 business days from New Delhi after proforma. Indent 2–4 weeks.
Why buy from Pioneer Mitra vs IndiaMART?
Dedicated Case 851 Carraro hub resource — compatibility tables, 20 FAQs, real photos, export docs, fitment check — vs thin marketplace rows.
Can you send video and photos before payment?
Yes — WhatsApp warehouse video and multi-angle photos of actual stock before invoice.