Fits: New Holland CR1090-A4, New Holland CR1090-A4B, New Holland CR1090-A-4B, New Holland CR1090-A5, New Holland CR1090-A5-OPTICLEAN + 123 more
usually ships in 3-5 business days
usually ships in 3-5 business days
Overview
Built for the New Holland CR1090-A4 and CR1090-A4B, this gear transmits torque through the drivetrain. Cataloged for 128 New Holland models across 6 series.
Specifications
Compatibility
Type your model to confirm it fits — or browse the full compatibility list below.
| Model | Series |
|---|---|
| CR1090-A4 | CR SERIES TIER 4 |
| CR1090-A4B | CR SERIES TIER 4 |
| CR1090-A-4B | CR SERIES TIER 4 |
| CR1090-A5 | CR SERIES TIER 5 |
| CR1090-A5-OPTICLEAN | CR SERIES TIER 5 |
| CR1090-E2 | CR SERIES TIER 2 |
| CR1090-E5 | CR SERIES TIER 5 |
| CR1090-TRA4B | CR SERIES TIER 4 |
| CR1090-TRA-4B | CR SERIES TIER 4 |
| CR1090-TRA5 | CR SERIES TIER 5 |
| CR1090-TRA5-OPTICLEAN | CR SERIES TIER 5 |
| CR1090-TRE2 | CR SERIES TIER 2 |
| CR1090-TRE5 | CR SERIES TIER 5 |
| CR6090-A4 | CR SERIES TIER 4 |
| CR6090-G4 | CR SERIES TIER 4 |
| CR680-MY15 | CR SERIES TIER 4 |
| CR680-MY16 | CR SERIES TIER 4 |
| CR680-MY17 | CR SERIES TIER 4 |
| CR680-MY18 | CR SERIES TIER 4 |
| CR690-MY15 | CR SERIES TIER 4 |
| CR690-MY16 | CR SERIES TIER 4 |
| CR690-MY17 | CR SERIES TIER 4 |
| CR690-MY18 | CR SERIES TIER 4 |
| CR690-MY19 | CR SERIES TIER 4 |
| CR690-MY20 | CR SERIES TIER 4 |
| CR7090-A4 | CR SERIES TIER 4 |
| CR7090-G4 | CR SERIES TIER 4 |
| CR780-A5-AGGR-SHAKE | CR SERIES TIER 5 |
| CR780-E2 | CR SERIES TIER 2 |
| CR780-E5 | CR SERIES TIER 5 |
| CR790-A4A | CR SERIES TIER 4 |
| CR790-A5-AGGR-SHAKE | CR SERIES TIER 5 |
| CR790-E2 | CR SERIES TIER 2 |
| CR790-E5 | CR SERIES TIER 5 |
| CR790-MY15 | CR SERIES TIER 4 |
| CR790-MY16 | CR SERIES TIER 4 |
| CR790-MY17 | CR SERIES TIER 4 |
| CR790-MY18 | CR SERIES TIER 4 |
| CR790-MY19 | CR SERIES TIER 4 |
| CR790-MY20 | CR SERIES TIER 4 |
| CR790-TRE2 | CR SERIES TIER 2 |
| CR790-TRE5 | CR SERIES TIER 5 |
| CR8080-A4 | CR SERIES TIER 4 |
| CR8080-G4 | CR SERIES TIER 4 |
| CR8090-A3 | CR SERIES TIER 3 |
| CR8090-A4 | CR SERIES TIER 4 |
| CR8090-G4 | CR SERIES TIER 4 |
| CR880-E5 | CR SERIES TIER 5 |
| CR880-TRE5 | CR SERIES TIER 5 |
| CR890-A4A | CR SERIES TIER 4 |
| CR890-A4B | CR SERIES TIER 4 |
| CR890-A5 | CR SERIES TIER 5 |
| CR890-A5-AGGR-SHAKE | CR SERIES TIER 5 |
| CR890-A5-OPTICLEAN | CR SERIES TIER 5 |
| CR890-D4 | CR SERIES TIER 4 |
| CR890-E0-12-5 | CR SERIES |
| CR890-E5 | CR SERIES TIER 5 |
| CR890-E5-12-5 | CR SERIES TIER 5 |
| CR890-L0 | CR SERIES |
| CR890-L0-12-5 | CR SERIES |
Showing the first 10 of 128 compatible models — type your model above to jump straight to it.
Not sure it fits? Browse the full parts catalogue to check every listed part.
Parts diagrams
Every diagram this part appears in — jump straight to its callout, or browse the whole assembly. Each diagram opens with every part numbered, and each callout links back to its own part page.
| Assembly | Machine | Callout | Parts | View |
|---|---|---|---|---|
 | New Holland CR690-MY19 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR9080-TR3 · Crop Storage-Unloading | #3 | 36 | View |
 | New Holland CR1090-A4B · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CX880-A4 · Crop Storage-Unloading | #4 | 37 | View |
 | New Holland CR680-MY18 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR680-MY15 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR890-D4 · Crop Storage-Unloading | #3 | 36 | View |
 | New Holland CR1090-A5 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR1090-A4 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CX780-E-5 · Crop Storage-Unloading | #4 | 37 | View |
 | New Holland CR6090-G4 · Crop Storage-Unloading | #3 | 36 | View |
 | New Holland CR6090-A4 · Crop Storage-Unloading | #3 | 36 | View |
 | New Holland CX8080-A4 · Crop Storage-Unloading | #4 | 37 | View |
 | New Holland CR9070 · Unloading | #4 | 40 | View |
 | New Holland CR1090-A-4B · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR1090-A5-OPTICLEAN · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR780-A5-AGGR-SHAKE · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CR1090-TRA5-OPTICLEAN · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CX880-A5 · Crop Storage-Unloading | #4 | 37 | View |
 | New Holland CR1090-A5 · Crop Storage-Unloading | #3 | 37 | View |
 | New Holland CX8070-A3 · Crop Storage-Unloading | #4 | 37 | View |
Part guide
New Holland 84398990 is the gear Clinton Tractor supplies for this application. It is listed as fitting 128 New Holland models.
Fits: New Holland CR1090-A4, New Holland CR1090-A4B, New Holland CR1090-A-4B, New Holland CR1090-A5, New Holland CR1090-A5-OPTICLEAN + 123 more. Commonly ordered for the CR1090-A4, CR1090-A4B, CR1090-A-4B. If your machine isn't listed, check the serial number before ordering.
Questions
Quick answers to what operators ask most before they order this part.
It fits 128 New Holland models, including the CR1090-A4, CR1090-A4B, CR1090-A-4B and 125 more.
Yes — 84398990 is a genuine New Holland OEM gear, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page — it covers the New Holland CR1090-A4 — or send your serial to Clinton Tractor and we'll confirm 84398990.
Reviews
Bought this gear? Share how it worked out to help the next operator choose with confidence.
No seeded stars — ratings appear only from real submissions.
Often Bought Together
