Part Location Diagram of 37X66MA Murray Belt-secondary 47.10
See part A4 in the diagram
( Grid squares measure 1x1 inch )

Belt-secondary 47.10 37X66MA

Manufactured by:
Murray
ERP Number:
ERP12089861
Part Number:
37X66MA
Original Equipment Manufacturer ?
  Works with your model  7800416!
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

1- 2 hours 

(4 rated repairs) ?
  Works with your model   7800416!

Product Description

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This is a Genuine Manufacturer Approved replacement Belt used on Murray Lawn Tractors. This part is made out of Rubber and it is Sold Individually. This is the the Smaller Belt that drives Blades on your unit. Clean pulleys before installing the new belt to ensure top performance and longevity with your new belt. Inspect belt periodically and replace it when worn or stretched to maintain peak performance. You would need a Wrench set and Pliers to replace this belt. • For your safety make sure to disconnect the spark plug wire. • Fist you would need to lower the mower deck to the lowest position • Then move the blade engagement lever to the Off position. • Roll the belt off the engine pulley from between the belt guide and pulley. • Remove mower deck by removing the bow-tie pins securing the left and right lift arms • Disconnect the blade engagement cable from the mower deck • Remove the bolts from the mower deck belt pulley covers and pull the covers off. • Loosen but don't remove the nuts on the top of the idler pulleys. • Install the new mower deck belt through the belt guides and around the pulleys. • Tighten the nuts on the top of the idler pulleys. • Re-Assemble the Deck

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Murray
  • Briggs and Stratton
  • Snapper
  • Craftsman
  • Simplicity
This part works with the following products:
  • Lawn Tractor
  • Lawn Mower
Part# 37X66MA replaces these:
037X66MA, 37X66MA,

Customer Part Reviews

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

A Bit Difficult 

1- 2 hours 

(4 rated repairs) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Secondary belt broke.

Hilario from El Paso, Texas

3 of 3 people found this instruction helpful.
Difficulty Level:
Difficult
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Socket set, Wrench set
Parts Used:
37X66MA
Removed the mower deck. Removed covers from belts. Pulled off primary driver belt. Replaced secondary belt, then primary driver belt. replace covers for belts and then deck.

Next time.
Replace all belts since the main belt has to be removed anyway.
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Our belts were cracked and breaking

Earl from Avon Park, Florida

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Screw drivers, Socket set, Wrench set
Parts Used:
37X66MA, 37X89MA, 37X106MA
Remove the deck
Take a picture of the belt routing and install the belts
Then install the primary belt above the chassis
Replace the deck
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Old tractor, pulleys just worn out and belts needed replacing

Bryan from CRESCENT CITY, Florida

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Socket set, Wrench set
Parts Used:
37X66MA, 37X89MA, 690387MA, 690549MA
Dropped mower deck, replaced pulleys and belts and reassembled
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One of the deck belts was cracked to the point of needing replacement and the drive belt idler pulley tension spring was broken.

Mary from Crisfield, Maryland

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Socket set, Wrench set
Parts Used:
37X66MA, 165X138MA
My big problem was that the old idler spring was just lying on the deck and I had no idea where it went. I knew the short end hooked to the idler pulley arm but nothing else seemed like an appropriate place to hook the other end to.

This is more or less how it went:
I removed the mower deck, marking the various arms and mounting pins so I knew where everything when. I dragged the deck away from the tractor, cleaned it thoroughly, primed the bad spots, and repainted the deck with matching paint. I masked all of the decals so they still looked sharp when I pulled off the tape.

I replaced the secondary drive belt and the primary belt. Once it was roughly in place, I fooled around with the spring until I found a place that would hold it under tension and seemed far enough to stretch it.

I hooked one end to the bracket and using a tool I made of a thick piece of wood and a piece of 550 cord, I stretched the spring until I could hook the other end. (Be careful not to aim the spring at your head in the event it comes loose.) I had no problem slipping the 550 cord from behind the spring.

I double checked the operation of the spring and pushed the deck back under the tractor and placed the drive belt around the drive pulley. As I had marked the deck supporting locations, I had no trouble putting it back on the tractor.

Once the deck was back under the tractor, I leveled it while it was parked on my driveway.

I think removing the deck was the simplest thing to do; I might have been able to do everything with the deck on the tractor (I don\'t know) but this way everything was free and clear and I could repaint the rusty spots.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP12089861
Manufacturer Part Number: 37X66MA
Brand Model Number Description
Snapper 2690858 Lawn Mower - Snapper Lawn Mower Model 2690858 Parts
Snapper 28829 Lawn Tractor - Front-Engine Lawn Tractor
Snapper 28838 Lawn Tractor - Front-Engine Lawn Tractor
Murray 3396804 Lawn Mower - Gas Walk-Behind Mower
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Murray 461004x92B Lawn Tractor - 46&#34 Lawn Tractor
Murray 461005x68A Lawn Tractor - 46&#34 Lawn Tractor
Murray 461007x92A Lawn Tractor - 46&#34 Lawn Tractor
Murray 461007x92B Lawn Tractor - 46&#34 Lawn Tractor
Murray 461008x692A Lawn Tractor - 46&#34 Lawn Tractor
Murray 461008x92A Lawn Tractor - 46&#34 Lawn Tractor
Murray 461018x99A Lawn Tractor - 46&#34 Lawn Tractor
Murray 461018x99B Lawn Tractor - 46&#34 Lawn Tractor
Murray 46102x6A Lawn Tractor - 46&#34 Lawn Tractor
Murray 46102x6B Lawn Tractor - 46&#34 Lawn Tractor
Murray 46103A Lawn Tractor - 46&#34 Garden Tractor
Murray 46103B Lawn Tractor - 46&#34 Lawn Tractor
Murray 46103x50A Lawn Tractor - 46&#34 Garden Tractor
Murray 46103x50B Lawn Tractor - 46&#34 Lawn Tractor
Murray 46103x50C Lawn Tractor - 46&#34 Lawn Tractor
Murray 46103x71A Lawn Tractor - 46&#34 Garden Tractor
Murray 46103x92A Lawn Tractor - 46&#34 Garden Tractor
Murray 46104x14A Lawn Tractor - 46&#34 Lawn Tractor
Murray 46104x8A Lawn Tractor - 46&#34 Garden Tractor
Murray 46104x8B Lawn Tractor - 46&#34 Lawn Tractor
Murray 46104x8C Lawn Tractor - 46&#34 Lawn Tractor
Murray 46104x8D Lawn Tractor - 46&#34 Lawn Tractor