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Jackshaft Housing

Part Number: 492574MA

5 Reviews

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Questions & Answers

Repair Instructions

*This part replaces obsolete part #: 090905, 92574MA, 90905, 49257MA, 692574MA, 092574MA, 090905MA and 092574.

Product Information

Manufacturer: Murray

Product Number: 492574MA

Classification: Part

Weight: 1.60 lbs.

Also Known As: Spindle Assembly, Spindle Housing

Shipping: Ships Worldwide

Description:

This is a genuine Murray replacement part, it is sold individually.
The Jackshaft housing is connected to the drive shaft, which is connected to the pulley driven by the belts and engine.
Below the Jackshaft Housing, the blade adapter, blade, washers and blade nut are attached to the drive shaft.
The Jackshaft Housing does include the bearing and a zerk fitting.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

Murray

See more of the 150+ compatible machines

Products Compatibility

This item works with the following types of products:

• Lawn Mower
• Lawn Tractor
• Trimmer

Questions & Answers

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will the part fit? Murray model 40631x8a element # 50 housing, jackshaft 90905 ? Please let me know as I'm planning to mail it to Europe.

Kinga Lesniak for model number 40631x8A

Hello Kinga, Thank you for the question. Sadly, we do not have any information on the model number you provided. Could you please verify the number you provided us with? If it is correct, I recommend contacting the manufacturer and seeing if they could provide you with a part number, and then you are always welcome to check back to see if we carry the part. Hope this helps!

2 people found this helpful.

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Looking for the spindle for wizard riding mower 42" cut 5 speed with 14.5hp hp I/COHV motor.

Kim for model number AYP7143A79

Hello Kim, Thank you for contacting us. I have researched the model you have provided and have found the part you are looking for is Part Number: 532156483 for the Left side and Part Number: 154423 for the Right Side. I looked up the right side and it is listed as No Longer Available/Discontinued. There is no part substitutions listed. My suggestion here would be to call the manufacturer and see if they can provide you with a substitution for these part numbers. Hope this helps!

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Repair Instructions: Submitted by Customers Like You

15 of 18 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Blade - 56631E701MA

Splined Spindle Shaft - 94129MA

Belt, Primary - 37X96MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Pliers, Power Drill, Socket set, Wrench Set, Adjustable Wrench

Jackshaft bearings R&R

Remove drive belt then remove the deck from the mower. Take the guards off, then the blade then the jack shaft housing and shaft. Install new one , don't forget to grease it an the others too.. Put all back together an your done.

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5 of 5 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Splined Spindle Shaft - 94129MA

Spacer - 094130MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

More than 2 hours

Tools Used:

Socket set, Wrench Set, Impact driver, grease gun

Bad mower deck bearing on Murray riding mower.

Removed deck from mower.
Removed flange nut from top of pulley.
Removed pulley and spacer from jackshaft
Removed old mower blades..
Removed bolts holding mandrel housing and pulley guards.
Bolted on new mandrel housing.
Inserted new jackshaft and replaced pulley and spacer.
Greased new bearing in mandrel housing.
Replaced mower blades and tightened all nuts and bolts.
Placed deck back onto mower.

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5 of 5 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Spacer, 1/2 To 17mm - 690369MA

Idler Pulley - 690387MA

Splined Spindle Shaft - 94129MA

Spacer - 094130MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Wrench Set

Mower deck was loud and blade was cutting uneven

Removed mower deck and replaced the jackshafts and pulleys. Pretty simple job, just takes time to get it done!

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5 of 5 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Jackshaft - 491922MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, 5/16\\

Jack shaft was bent and housing was cracked

I removed jack shaft and the housing with socket wrenches and open end wrenches. Cleaned up the deck where the new parts would be installed. I had to tap the four holes in the new jack shaft housing,, because the four holes were not tapped. after tapping these four holes I mounted the housing on deck, and,, secured it with the four bolts from the previous installation. I slipped in the new jack shaft and mounted the drive pulley. I did grease up the new assembly as well.

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5 of 6 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Splined Spindle Shaft - 94129MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Pliers, Socket set, Wrench Set, Adjustable Wrench, Had to use a pneumatic impact wrench to remove the spindles

Noisy when blades were engaged. Excessive vibration from deck when engaged

Removed the mower deck from mower. The mandrel spindles simply unfolded from deck with help of impact wrench. Replaced in that order. Replaced pulleys. Be careful not to lose the spacer bushing for the idler pulley! The new mandrel spindle bolt holes were not threaded. But the weight that came out of them were tapered fine threaded bolts that will simply thread themselves into the aluminum mandrel spindles. I highly recommend going to a special you faster shop to replace all the bolts that go into the mandrel spindles. It was worth the extra $12!

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Blade Nut - 15X100MA

Splined Spindle Shaft - 94129MA

Blade - 95103E701MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Easy

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Wrench Set, Breaker Bar for all Nuts / Screws

Jack-shilf bearings & shaft wore out, the blades were bad, all new parts purchased fit great.

I used my 2 ton engine lift to raise the lawn tractor mower front end high enough to do the repair job easily. 3 of 5 screws attaching jack-shaft to housing broke. Could not remove the spacer from old main shaft to replace with new shaft. Hardware store for new screws, I had metal tubing on hand to make a new spacer. This old machine is working again.

Thanks, for having all the parts I needed.

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Washer - 17X165MA

Blade Nut - 15X100MA

Splined Spindle Shaft - 94129MA

Pulley, Jackshaft - 92851MA

Blade - 95103E701MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Pneumatic impact wrench

Both blade shafts were bent and bearings needed replacing.

1. Removed the cutting deck from the mower.
2. Used an impact wrench to dis-assemble and remove the components.
3. Replaced the upper pulleys, the spindle shafts, the shaft housings (mandrills) and the cutting blades.
4. Reassembled the components.
5. Replaced the cutting deck.

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Wrench Set, Grease gun

The jackshaft housing broke in half.

#1 Remove the belt.
#2 Hold on to the upper nut with socket and breaker bar.
#3 Put a wrench on the nut in the blade.
#4 Remove the nut on the pulley.
#5 Take out the 5 bolts around the base of the pulley.
#6 Drop the unit out from underneath the deck. To install reverse the order.
Easy!! Be sure to grease the bearing. While you are there grease the other jack shaft bearing.

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1 of 1 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Hex Head Washer Screw - 2828635SM

Splined Spindle Shaft - 94129MA

Spacer - 094130MA

Jackshaft Housing - 492574MA

Adapter Blade Kit - 92466SEMA

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set

Hub(jackshaft) & spindle (shaft)broke

Remove the deck from the mower
Remove the the upper jack shaft nut and pulley
Unbolted old broken hub(jackshaft housing) & blade
I replaced bolts hub (jackshaft)& (shaft)spindle
Reinstalled blade & belt
Note: The jackshaft housing is not threaded but the bolts are self tapping

Mower has two blades, so I used other side as reference

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Tool Type:

Lawn Tractor

Parts Used:

Blade, 38" - 091742E701MA

Jackshaft - 491922MA

Jackshaft Housing - 492574MA

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Socket set, Adjustable Wrench

Jackshaft and bearings worn out,belt worn out, replaced blades also

Removed support rods , dropped mower deck
Removed old belt
Removed belt guides
Unbolted old blades & pulleys
Unbolt & remove old jackshaft housing & jack shafts
Bolt in new housings & jack shafts & pulleys, grease new bearings
Put on new blades
Install new belt & belt guides
Put deck back on mower
Level deck front to back & side to side

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Reviews

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Perfect except

Found that part was not pre-tapped. Customers would need to clean all bolts/screws to remove buildup and use a 3/8-16 tap and die for best results. I have to assume new bolts/screws are self tapping but this could cause stripping if not careful using the old ones. P.S. on reason for purchase you need to add broken, damaged and missing to the list. I am just glad you guys have these parts for all us home grease monkey honey doers.

Guest - 8 days ago Verified Purchase

Part is exact replacement for my riding lawn tractor

I found that the bolts that were used for the original jackshaft were of a type that would cut its own threads, hence all but one broke off, no problem, since I did not have any bolts of that type, other than the one that did not break, I just threaded to a standard bolt and snugged it down (soft metal for jackshaft) , put a lock and nut on the end and snugged down again. Just a note here to let the purchaser know you need to get the original bolts also. Good product am happy with it.

Guest - August 29, 2019 Verified Purchase