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Stack Pulley Assembly

Part Number: 690439MA
Murray
Availability: 5 in stock
Price: $48.31
Ships within 1 business day

*This part replaces obsolete part #: 094139ZMA, 690448MA, MU690439MA and 690439ZMA.

Product Information
Manufacturer: Murray
Product Number: 690439MA
Classification: Part
Weight: 4.02 lbs.
Shipping: Ships Worldwide
Description:
The stack pulley goes next to the engine plate. This is made out of metal and is sold individually. It is a genuine OEM sourced part which is specially designed for use with Murray lawn tractors. During the installation process, a wrench might be needed to replace this item. Over time this part may break and will need to be replaced.
Compatibility

This part is compatible with the following machines:

Murray
7800292 (385002x108C) Lawn Tractor
7800412 (EYK125380) Lawn Tractor
7800303 (425621x108D) Lawn Tractor
7800410 (ELT155420G) Lawn Tractor
7800411 (ELT155420H) Lawn Tractor
7800413 (EYK155420G) Lawn Tractor
7800414 (EYK155420H) Lawn Tractor
7800399 (ELT175460H) Lawn Tractor
7800400 (ELT12460H) Lawn Tractor
7800416 (EYK12460H) Lawn Tractor
7800272 (312006x11E) Lawn Tractor
7800274 (312006x11E) Lawn Tractor
7800275 (309006x78C) Lawn Tractor
7800276 (385048x114) Lawn Tractor
7800277 (385048x51A) Lawn Tractor
7800294 (385002x78D) Lawn Tractor
7800319 (385048x151) Lawn Tractor
7800278 (405021x114) Lawn Tractor
7800279 (405021x51) Lawn Tractor
7800280 (405628x114) Lawn Tractor
7800281 (405628x51) Lawn Tractor
7800295 (405012x108) Lawn Tractor
7800297 (405012x108) Lawn Tractor
7800300 (405606x78C) Lawn Tractor
7800320 (405021x151) Lawn Tractor
7800321 (405628x151) Lawn Tractor
7800162 (LT155420) Lawn Tractor
7800191 (LT185420) Lawn Tractor
7800282 (425307x51A) Lawn Tractor
7800302 (425017x78B) Lawn Tractor
7800303 (425621x108C) Lawn Tractor
7800304 (425622x78C) Lawn Tractor
7800307 (CLT155420) Lawn Tractor
7800309 (CLT185420) Lawn Tractor
7800361 (LT135420C) Lawn Tractor
7800362 (LT155420C) Lawn Tractor
7800370 (FLT185420) Lawn Tractor
7800192 (LT20460) Lawn Tractor
7800311 (CLT20460) Lawn Tractor
312006x50C Lawn Tractor
385002x108B Lawn Tractor
385003x108 Lawn Tractor
385047x51A Lawn Tractor
405013x50C Lawn Tractor
405020x51A Lawn Tractor
405606x50C Lawn Tractor
405612x108 Lawn Tractor
405627x51A Lawn Tractor
425018x00A 42" Lawn Tractor
425622x50C 42" Lawn Tractor
312006x190A (552550) 30" Lawn Tractor
312006x50B-SW 30" Lawn Tractor
312006x78B 30" Lawn Tractor
385002x190A (552544) 38" Lawn Tractor
385002x50B-SW 38" Lawn Tractor
385002x78C 38" Lawn Tractor
385044x51A-SW 38" Lawn Tractor
405013x50B-SW 40" Lawn Tractor
405017x190A (552545) 40" Lawn Tractor
405606x50B-SW 40" Lawn Tractor
405606x78B 40" Lawn Tractor
405607x78A 40" Lawn Tractor
405625x51A-SW 40" Lawn Tractor
425017x190A (552548) 42" Lawn Tractor
425622x50B-SW 42" Lawn Tractor
425622x78B 42" Lawn Tractor
425624x190A (552547) 42" Lawn Tractor
425640x50B-SW 42" Lawn Tractor
312002x11B 30" Lawn Tractor
312006x50A 30" Lawn Tractor
385000x68B 38" Lawn Tractor
385001x51A 38" Lawn Tractor
385002x108A 38" Lawn Tractor
385002x50A 38" Lawn Tractor
385002x78A 38" Lawn Tractor
385002x78B 38" Lawn Tractor
385002x98A 38" Lawn Tractor
385003x52A 38" Lawn Tractor
385004x52A 38" Lawn Tractor
405000x8E 40" Lawn Tractor
405000x8F 40" Lawn Tractor
405000x8G 40" Lawn Tractor
405004x99A 40" Lawn Tractor
405011x48A 40" Lawn Tractor
425001x99A 42" Lawn Tractor
425012x31A 42" Lawn Tractor
425014x92B 42" Lawn Tractor
425014x92C 42" Lawn Tractor
425016x48A 42" Lawn Tractor
425017x24A 42" Lawn Tractor
425017x78A 42" Lawn Tractor
425604x99C 42" Lawn Tractor
425615x99B 42" Lawn Tractor
425621x108A 42" Lawn Tractor
425622x78A 42" Lawn Tractor
425640x50A 42" Lawn Tractor
405011X52A 40" Lawn Tractor
405011x92A 40" Lawn Tractor
405011x92B 40" Lawn Tractor
405011x92C 40" Lawn Tractor
405012x108A 40" Lawn Tractor
405013x50A 40" Lawn Tractor
405016x31A 40" Lawn Tractor
405017x78B 40" Lawn Tractor
405605x51A 40" Lawn Tractor
405606x108A 40" Lawn Tractor
405606x50A 40" Lawn Tractor
405606x78A 40" Lawn Tractor
405607x52A 40" Lawn Tractor
425001x8C 42" Lawn Tractor
405017x78A 40" Lawn Tractor
425001x8D 42" Lawn Tractor
425001x8E 42" Lawn Tractor
312002x11A 31" Lawn Tractor
312001x50C 31" Lawn Tractor
312002x98B 31" Lawn Tractor
312003x50B 31" Lawn Tractor
312004x68A 31" Lawn Tractor
385000x68A 38" Lawn Tractor
385011x50C 38" Lawn Tractor
385014x98B 38" Lawn Tractor
385015x50B 38" Lawn Tractor
385015x50C 38" Lawn Tractor
385016x78A 38" Lawn Tractor
385021x53A 38" Lawn Tractor
38516x53D 38" Lawn Tractor
387002x92A 38" Lawn Tractor
405000x31B 40" Lawn Tractor
405000x8C 40" Lawn Tractor
405000x8D 40" Lawn Tractor
405001x78B (2004) 40" Lawn Tractor
405004x50B 40" Lawn Tractor
405004x52A 40" Lawn Tractor
405005x99B 40" Lawn Tractor
405005x99C 40" Lawn Tractor
405007x18B 40" Lawn Tractor
405012x78A 40" Lawn Tractor
405030x48B 40" Lawn Tractor
405030x48C 40" Lawn Tractor
405602x51A 40" Lawn Tractor
405604x53A 40" Lawn Tractor
312000x68B 31" Lawn Tractor
312000x98B 31" Lawn Tractor
312001x11B 31" Lawn Tractor
312001x11C 31" Lawn Tractor
312001x50B 31" Lawn Tractor
312002x98A 31" Lawn Tractor
312003x50A 31" Lawn Tractor
385008x51B 38" Lawn Tractor
385008x52B 38" Lawn Tractor
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Lawn Tractor
Questions & Answers

What are the dimensions of this part. pulley diameters, length between the top pulley and bottom pulley. The model # of mower is not available but it was purchased in the early 1980's. also the length from the top of the top pulley to the bottom of the bottom pulley.
Eddie asked on 2019-04-03
Hello Eddie, thank you for your inquiry! We have found the dimensions of this part to be the following: ?ID: 1" ?Height: 6-5/8" ?OD of Top Pulley: 4-1/4" ?Height of Top Pulley: 1-1/16" ?OD of Bottom Pulley: 5-7/8" ?Height of Bottom Pulley: 1-1/8" I hope this information helps!
Repair Instructions: Submitted by Customers Like You
2 of 3 people found this instruction helpful
Tool Type:
Lawn Tractor
Parts Used:
Stack Pulley Assembly - 690439MA
Repair Difficulty:
Medium
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Impact wrench and socket
The lawn mower would not move and the blades would not turn. The stack pulley was stripped out
Had to remover both mower deck belt and the drive belt. Used a impact wrench to loosen the bolt that holds on the stack pulley assembly on and pull off. I hope it works for a while. The shaft on the lawn mower is pretty banged up because of the stack pulley being stripped out.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Lawn Tractor
Parts Used:
Stack Pulley Assembly - 690439MA
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Jack
Engine drive pulley key way stripped out and the mower blades stopped working.
Removed the mower deck.
Removed bolt holding the pulley to crank shaft.
Removed the double pulley and installed new part.
Installed deck and test ran.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Product Information
Manufacturer: Murray
Product Number: 690439MA
Classification: Part
Weight: 4.02 lbs.
Shipping: Ships Worldwide
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