Craftsman CMXGNAM1130050 rear engine riding mower Parts

Common problems we see on the Craftsman CMXGNAM1130050 rear-engine riding mower include no-start conditions (battery, safety switches, solenoid), poor cutting (dull blades, worn belts, deck issues), and drive problems (slipping ground drive belt). Many issues trace back to normal wear, loose hardware, or neglected maintenance.

Most common symptoms and likely causes

• Engine will not crank: weak battery, corroded terminals, failed starter solenoid, faulty interlock switch, seat switch not closing
• Cranks but will not start: stale fuel, clogged air filter, fouled spark plug, fuel restriction
• Cuts uneven or leaves strips: bent/dull blade, loose mandrel, deck not level, worn blade drive belt
• Blades will not engage: worn belt, damaged mandrel assembly, safety switch issue
• Mower will not move or slips: stretched ground drive belt, linkage out of adjustment

Parts that commonly fix these problems

If your symptoms match, these are frequent replacement items for CMXGNAM1130050:

Symptom	Part to check/replace	What it does
No crank	Mtd lawn tractor starter solenoid 725-06153A	Sends battery power to the starter when you turn the key
No crank or intermittent crank	Lawn tractor interlock switch 725-04363	Confirms brake/PTO conditions so the engine can start
Blades slip or won’t stay engaged	Craftsman lawn tractor blade drive belt 754P06135	Transfers power from engine to the mower deck
Mower slips or won’t drive	Lawn tractor ground drive belt 754P05874	Transfers power to the transmission/drive system
Poor maintenance leading to running issues	Engine filter 696854	Helps keep engine oil cleaner for longer engine life

Quick checks we recommend before buying parts

• Set the parking brake fully and make sure the PTO/blade switch is off
• Inspect belts for glazing, cracking, or a “stringy” edge (signs of slipping)
• Wiggle the blade area (engine off, key removed) to check for mandrel looseness
• Look for damaged wiring near the seat, brake pedal, and under the dash
• Confirm the battery connections are clean and tight

Why it matters

Catching belt wear, switch failures, and loose deck hardware early prevents bigger problems like overheated pulleys, damaged mandrels, and repeated no-start situations.

Last updated: January 2026

Craftsman rear-engine riding mowers like model CMXGNAM1130050 are commonly equipped with engines supplied by major small-engine manufacturers such as Briggs & Stratton, Kohler, or Kawasaki. The exact engine brand on your mower is confirmed by the engine ID label on the engine itself.

How to identify the engine brand on CMXGNAM1130050

Check these spots on the engine for a label or stamped tag:

• Top of the blower housing (recoil/shroud area)
• Valve cover area
• Near the spark plug
• On the engine block near the muffler
• On a sticker near the air filter housing

You are looking for the engine manufacturer name plus an engine model and type/spec number.

Quick guide: what the label usually looks like

Engine maker	What you typically see on the tag	What to write down
Briggs & Stratton	Model / Type / Code	All three fields
Kohler	Model / Spec / Serial	All three fields
Kawasaki	Model / Spec / Serial	All three fields

Why it matters

The engine brand and spec determine the correct maintenance parts (oil filter, air filter, spark plug) and tune-up settings. For example, if your CMXGNAM1130050 uses a Briggs & Stratton engine, an oil filter such as the engine filter 696854 may be a match depending on the exact engine model and spec.

Helpful tips before ordering engine parts

• Match parts to the engine model and spec, not just the mower model
• Replace the oil filter during oil changes if your engine uses one
• Inspect the wiring and safety circuits if you have a no-start issue (seat switch, interlock switch, ignition switch)
• Use the correct belt type for deck drive vs ground drive if you are troubleshooting slipping or loss of motion

Last updated: January 2026

Craftsman model CMXGNAM1130050 is a specific rear-engine riding mower model number; the exact production years are tied to the unit’s model and serial number information on the mower’s ID label. We use that ID label to match the correct parts and narrow down the manufacturing timeframe.

How to find the build date range on your mower

On most Craftsman rear-engine riding mowers, the ID label is typically under the seat, on the frame near the seat pan, or near the rear fender area.

• Locate the model number and confirm it reads CMXGNAM1130050
• Write down the serial number exactly as shown
• Look for a date code or a “MFG” style date on the label (format varies)
• If the label is worn, clean it gently and use a flashlight to read stamped characters
• Use the model and serial together when ordering parts to avoid mismatches

Why the exact year matters for parts

Even within the same model family, Craftsman and OEM suppliers can change components mid-run (switches, belts, pulleys, wiring). Matching by model and serial helps ensure the right fit for items like the ground drive belt, blade drive belt, and safety interlock parts.

What you have	What it tells us	Why it helps
Model number (CMXGNAM1130050)	Product platform	Gets you to the correct parts list
Serial number	Production run details	Narrows down revisions and compatible parts
Date code (if present)	Approx. build date	Helps confirm the correct version

Parts that commonly vary by production run

If you are troubleshooting or ordering maintenance parts, these are often the first items where serial breaks matter:

• Lawn tractor ground drive belt 754P05874
• Craftsman lawn tractor blade drive belt 754P06135
• Ignition switch and interlock switch (starting and safety circuits)
• Starter solenoid (no-crank symptoms)
• Engine oil filter (engine-specific)

Quick tip before you order

If your mower has a no-start or intermittent shutoff issue, confirm the seat switch and interlock switch wiring is intact before replacing parts; damaged connectors can mimic a failed switch.

Last updated: January 2026