My 345 User manual says replacement plug is (M71939) from your JOHN DEERe dealer.
Clint
The recommended Champion spark plug for a John Deere 345 lawn tractor is the Champion RJ19LM. This spark plug is designed to provide optimal performance and efficiency for the engine used in this model. It's important to ensure proper gap settings and maintenance for the best results. Always consult the owner's manual for specific recommendations.
To change the drive belt on a John Deere 345, first, ensure the engine is off and disconnect the spark plug for safety. Remove the mower deck by detaching it from the tractor, then locate the drive belt. Remove the old belt by releasing the tension from the belt tensioner, and install the new belt by routing it according to the diagram typically found on the mower deck or in the owner's manual. Finally, reattach the mower deck and reconnect the spark plug before testing the setup.
Setting in the seat of the lawn tractor, it is on the front and right side of the motor close to the hinge area for the hood of the lawn tractor. You will see a black wire about the diameter of a pencil that slips over the plug. _____ |_____|\ o\ < - it will be angled (where the o is) from the front and the side of the motor.
The John Deere model 345 with the serial number M00345A087311 was manufactured in 2001. The first letter in the serial number indicates the model year, and for John Deere, "M" corresponds to 2001.
According to TractorData site (http://www.tractordata.com/lawn-tractors/000/5/8/585-john-deere-345.html) That is a 1996 model.
.025 in.
Depends on the Serial # which you fail to list. #m00345c085477
1999
.030"
On a 345 John deere I use Fram PH 4967 that what the pervious owner used. Al
According to Tractordata site (http://www.tractordata.com/lawn-tractors/000/5/8/585-john-deere-345.html) That is a 2000 model.
Here's the deal..why would John Deere release FREE operator's manuals to everyone? They won't, never will and anything else is plagerism and infringment of copyright law. To order a manual for a cost call Deere & Company's Distribution Center at 1-800-522-7448.