YZ91356 Genuine JOHN DEERE 3rd Stage Left-Hand Helical Gear 25 Teeth Merit Transmission Series, "5", "5", "2"
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YZ91356 Genuine JOHN DEERE 3rd Stage Left-Hand Helical Gear 25 Teeth Merit Transmission Series
This heavy-duty 3rd stage left-hand helical transmission gear is precision-forged with 25 synchronizing teeth designed to streamline continuous rotational tracking, optimize high-torque power engagement loops, and guarantee smooth, low-vibration shaft gear shifts under severe tillage workloads.
Key Features
- Designed to match or exceed applicable specifications
- Provides the function required for the intended system or assembly
- Built for dependable performance and service life
- Backed by JOHN DEERE quality and engineering.
Specifications
| Brand | JOHN DEERE |
| Part Type | John Deere 3rd Stage Left-hand Helical Gear 25 Teeth |
| SKU | YZ91356 |
| OEM Cross Reference | 705455AT Fits on:6403 - TRANSMISSION6003 Series / 6D Series (Merit) Transmission - PC96736603 - TRANSMISSION6003 Series / 6D Series (Merit) Transmission - PC96736115D - Tractor6100D, 6110D, 6115D, 6125D, 6130D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006125D - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006100D - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006130D - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006110D - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006140D - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61004045TP060 - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61004045HP052 - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61004045TP070 - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61004045TP071 - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61004045HP053 - Tractor6100D, 6140D Tractors (S.N. -050000) (Worldwide Edition) - PC61006105D - Tractor6105D iT4 Tractor (S.N. 050001 - 059999) (S.N. 060000- )(Engine: 4045HP056)(North America Edition) - PC61164045HP056 - Tractor6105D iT4 Tractor (S.N. 050001 - 059999) (S.N. 060000- )(Engine: 4045HP056)(North America Edition) - PC61166115D - Tractor6115D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- )(Engine: 4045HP056)(North America Edition) - PC61174045HP056 - Tractor6115D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- )(Engine: 4045HP056)(North America Edition) - PC61176130D - Tractor6130D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- ) (North America Edition) - PC61184045HP057 - Tractor6130D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- ) (North America Edition) - PC61184045HP056 - Tractor6130D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- ) (North America Edition) - PC61186140D - Tractor6140D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- )(Engine: 4045HP056, 4045HP057)(North America Edition) - PC61194045HP057 - Tractor6140D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- )(Engine: 4045HP056, 4045HP057)(North America Edition) - PC61194045HP056 - Tractor6140D iT4 Tractor (S.N. 050001 - 059999)(S.N. 060000- )(Engine: 4045HP056, 4045HP057)(North America Edition) - PC6119 |
| UPC | 705455AT |
| Weight | 3.0 lb |
Brand Information
Brand: JOHN DEERE
As an elite international benchmark in heavy-duty agricultural drivetrain engineering and progressive gearbox design, John Deere utilizes carburized alloy steels, micro-finished tooth flanks to eliminate backlash, and automated case-hardening induction loops to manufacture transmission components that perform to exact original factory standards.
| Model | Component | Year | Serial Numbers |
|---|---|---|---|
| John Deere 6403, 6603 | Transmission 3rd Stage Helical Gear (25-Teeth) | 2006-2026 | All Models |
| John Deere 6003 Series / 6D Series | Transmission 3rd Stage Helical Gear (25-Teeth) | 2008-2026 | All Series |
| John Deere 6100D, 6110D, 6115D, 6125D | Mechanical Transmission 3rd Stage Gear | 2008-2015 | S.N. -050000 |
| John Deere 6130D, 6140D | Mechanical Transmission 3rd Stage Gear | 2008-2015 | S.N. -050000 |
| John Deere 6105D, 6115D, 6130D, 6140D iT4 | Mechanical Transmission 3rd Stage Gear | 2012-2026 | S.N. 050001+ |
Shipping Information
Processing time
In-stock parts ordered by 6:30 PM ET (Mon–Fri) leave our Arden, NC warehouse the same business day. Orders placed after the cutoff, or on weekends and holidays, ship the next business day.
Special-order and non-stock items typically add 1–2 business days of processing before shipping. If anything will take longer, we'll contact you first.
Delivery speeds
We ship with trusted national carriers (UPS, FedEx, USPS). Typical transit times after your order ships:
| Service | Transit time | Best for |
|---|---|---|
| Next Day Air | 1 business day | Down equipment — when every hour counts |
| 2nd Day Air | 2 business days | Urgent jobs on a schedule |
| Ground | 1–5 business days | Most orders — fast from NC to most of the eastern US |
| Economy / Standard | 3–7 business days | Non-urgent orders |
Freight & oversized items
Large or heavy items (housings, axles, large assemblies) may ship via LTL freight. If your order requires freight, we'll contact you with delivery details before dispatch.
- Freight deliveries are typically curbside.
- Lift-gate, residential, or inside delivery may add carrier fees — we'll quote these up front.
- The carrier may call to schedule a delivery appointment.
International shipping
Yes, we ship internationally. Rates and delivery times vary by destination and are shown at checkout. International customers are responsible for any duties, taxes, customs, or brokerage charges required by their country or carrier.
Free shipping offers
When we run free-shipping promotions, they apply to qualifying items and selected methods within the contiguous United States. Oversized/freight items aren't eligible unless specifically stated.
Damaged, lost, or missing items
Refused shipments
If you need to refuse a delivery, contact us first. Refused packages may be subject to return shipping charges unless the item is defective or damaged.
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