will this replace a gear box for a farm king finish mower part #912300158

No, this is for a rotary cutter. The Farm King Finish Mower gearbox will use a keyed output shaft, where this is splined. Are there any numbers on the gearbox itself?

Need gear box for rottary tiller 48 inch

Unfortunately I do not carry any tiller gearboxes here.

Do you have a gear box that will fit a John Deere medium duty model 616 bush hog?

The 516/616 is a weird gearbox. it has a 6 bolt mounting pattern like a heavy duty gearbox and a 1.57" 12 spline output shaft like a 40hp box. For any gearbox that will fit the stump jumper, (blade holder), you will have to redrill the deck to mount it. Your box also has a longer output shaft the the standard aftermarket boxes, and the average replacement shaft may not be long enough for the blades to clear the deck well. If you want to explore this further, contact me at dawson@tractors-equipment.com. I would like to know how far the shaft extends below the deck.

Will this work on a Rhino SE 6 mower?

This is a 40 hp box and it will fit. If you have a slip clutch order the one with a 6 spline input shaft. If it uses a shear bolt order the one with a smooth input shaft.

Omni Gear Rotary Cutter 40 Hp Gear Box 1 3

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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R18505

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Gear up your rotary cutter game with power and precision!

PRECISION FIT - Industry-standard 1 3/8" diameter x 6 spline input shaft for seamless compatibility with most rotary cutters.
READY TO MOUNT - Four-bolt mounting pattern and included blade carrier nut & cotter pin for quick, hassle-free installation.
SPEED OPTIMIZED - 1:1.47 speed-up gear ratio designed to maximize output on 5' and larger diameter rotary cutters.
DURABILITY ENGINEERED - Heat-treated gears and shafts combined with high-speed ball bearings for long-lasting, reliable operation.
POWERHOUSE PERFORMANCE - 40 HP gearbox engineered for heavy-duty rotary cutters, ensuring unmatched cutting efficiency.

The Omni Gear Rotary Cutter Gearbox delivers 40 HP with a robust 1:1.47 speed-up ratio, featuring a standard 1 3/8" x 6 spline input shaft and a 1.57" diameter 12 tapered spline output shaft. Built with heat-treated gears and high-speed ball bearings, it ensures durability and smooth operation for 5' and larger rotary cutters. Designed for easy installation with a four-bolt mount and includes essential mounting hardware, this gearbox is the reliable upgrade for professional-grade lawn and brush mower attachments.

Specifications

ASIN	B00J351HJQ
Best Sellers Rank	#372,648 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #134 in Gearboxes, Gearheads & Speed Reducers
Date First Available	March 18, 2014
Item Weight	44 pounds
Manufacturer	Omni Gear
Product Dimensions	15 x 9 x 15 inches

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