Craftsman 917270962 20.5-hp 42" mower lawn tractor Parts

Yes, replacing the engine on your Craftsman 917270962 20.5-hp 42-inch lawn tractor is worth it when the tractor’s deck, transmission, and safety systems are in good shape and the total engine-swap cost stays well below the cost of a comparable replacement tractor.

Quick decision checklist

• The mower deck is solid (no major rust-through or cracks)
• The tractor drives normally (no slipping, grinding, or loss of motion)
• The PTO and blades engage smoothly (no excessive vibration)
• You can complete the job safely (no repairs with the engine running)
• You can still get common wear parts (belts, blades, mandrel parts)

Cost and condition guide

Use this as a practical rule-of-thumb for a front-engine riding mower like model 917270962.

What you find	What it usually means	Best move
Deck and drivetrain are strong; engine is the main failure	The tractor still has good “bones”	Replace the engine
Deck is damaged or heavily corroded	Cut quality and safety suffer	Replace the tractor
Multiple systems failing (steering, brakes, electrical)	Repair costs stack up fast	Replace the tractor
You need only reliability for mowing season	Downtime matters	Replace the engine if the rest is solid

What to inspect before you commit

We recommend checking these items first because they directly affect safety and long-term value.

• Blade and deck condition: Blades must be installed correctly and tightened securely; the manual calls for 27 to 35 ft-lb blade bolt torque.
• Mandrel area and deck airflow: Built-up grass can clog deck vent holes around mandrels and hurt cut quality.
• Drive system: A worn ground drive belt can mimic engine problems; consider the lawn tractor ground drive belt 532140294 if you see glazing, cracking, or stretching.
• Starting and electrical: If the engine will not crank, the issue can be electrical; a common fix is the solenoid 532146154.
• Safety interlocks: Seat switch and clutch/brake interlock must work correctly; the engine should not run if safety conditions are not met.

Why it matters

An engine swap only pays off when the tractor remains safe and dependable afterward. A solid deck, sharp blades, clean mower housing, and working interlocks protect cut quality and reduce the chance of repeat failures.

For model-specific maintenance intervals and safety checks, follow the owner's manual for 917270962. If you decide to move forward, you can order replacement parts from the parts list for this model or search by model number on Sears PartsDirect.

Last updated: February 2026

The Craftsman riding mower model 917270962 is a 20.5 HP, electric-start, 42-inch mower lawn tractor; the engine make and model are listed in the specifications section of the owner's manual.

What we can confirm for model 917270962

From the model-specific documentation, this tractor is identified as:

• 20.5 HP lawn tractor
• Electric start
• 42-inch mower deck
• Automatic transmission (automatic lawn tractor)
• Uses unleaded regular gasoline; capacity 3.5 gallons

Where to find the exact engine brand and model

On riding mowers, the engine manufacturer (commonly Briggs & Stratton, Kohler, or similar) is typically shown in two places:

• The engine shroud/cover decal on the engine itself
• The product specifications pages in the owner's manual
• The engine model-type-code stamped on the engine (used for exact parts matching)

Quick checklist before you order engine-related parts

• Confirm the tractor model is 917270962 (from the frame tag)
• Record the engine’s model/type/code from the engine label
• Match tune-up items (spark plug, air filter, fuel filter) to the engine label, not just horsepower

Common specs you will use during engine service

These specs are provided for this model and help with routine maintenance and troubleshooting.

Item	Spec for 917270962
Gasoline capacity/type	3.5 gallons, unleaded regular
Oil type	SAE 30 (above 32°F), SAE 5W-30 (below 32°F)
Oil capacity	3.0 pints
Spark plug	Champion RJ19LM or J19LM
Spark plug gap	0.030 in

Why it matters

Two tractors can both be “20.5 HP,” but use different engines and different ignition, carburetor, and charging parts. Verifying the engine model prevents ordering the wrong tune-up parts and speeds up repairs.

If you need help with starting or electrical issues, a failed starter circuit component is common; for example, the solenoid 532146154 is one of the serviceable parts listed for this model.

Last updated: February 2026

Craftsman “6.75” is an engine horsepower class used on many walk-behind mowers, so there is no single model number that matches it. For this page, the model number is Craftsman 917270962, which is a 20.5-hp 42-inch front-engine lawn tractor (not a 6.75-hp walk-behind mower); confirm your exact mower’s model from the ID label and compare it to the owner's manual.

Where to find the correct model number on a 6.75-hp Craftsman mower

On most Craftsman walk-behind mowers, the model number is printed on a sticker or metal tag on the mower housing.

• Check the rear of the deck near the discharge chute
• Look behind the engine, near the recoil starter area
• Check the handle support brackets (left or right side)
• Wipe the label clean; grass and oil can hide digits
• Write down the full model number exactly as shown (including dots or dashes)

Quick comparison: 6.75 mower vs this page’s model

Item	Walk-behind mower labeled “6.75”	This Sears PartsDirect page
Equipment type	Push mower	Riding lawn tractor
Typical deck size	Often 21-inch	42-inch
Model number format	Varies by mower	917270962
Parts match to this page	Usually no	Yes

Why it matters

Parts are matched by model number, not by engine horsepower. Using the wrong model can lead to incorrect belts, blades, ignition keys, or deck parts.

If you meant to order parts for model 917270962

This page is for the Craftsman 917270962 tractor. Common parts shown for this model include the husqvarna lawn tractor mulching blade, 21-in 532134149 and the molded ignition key 532140403. For broader model searches and ordering, use Sears PartsDirect.

Last updated: February 2026

Craftsman model 917270962 was produced during the era when Craftsman used the 917. model-number family for many front-engine lawn tractors; the exact build year for your specific tractor is identified from the product identification label (model and serial) on the machine. Use the date/serial information and confirm it against the specifications in the 917270962 owner's manual.

How to find the build year on the tractor

We use the tractor’s identification label because Craftsman tractors were often sold across multiple seasons with the same model number.

• Park on a level surface, set the parking brake, and remove the key.
• Lift the seat; the label is commonly under the seat pan or on the rear fender area.
• Write down the model number (917270962) and the serial number exactly.
• Look for a date code or a serial pattern that includes a year indicator.
• If the label is damaged, check for a second label on the frame near the rear wheels.

What the manual confirms (and what it does not)

The owner’s manual confirms the model and configuration (20.5 HP, electric start, 42-inch mower deck, automatic transmission), but manuals are often reused across production runs, so the manual alone does not pin down a single calendar year.

Item	What it tells you	Best use
Model number (917270962)	Product family and configuration	Parts matching and manual matching
Serial/date code on label	Actual production timing	Determining the build year
Manual specs	How it’s equipped and maintained	Verifying features and service intervals

Why it matters

The build year helps us match the correct chassis, steering, and mower deck variations when you are troubleshooting or ordering parts like a ground drive belt, ignition key, or steering components.

Parts tip once you confirm the year

After you record the serial/date information, use the parts list for model 917270962 to match the exact diagrams and order what you need. For common wear items, we often see customers replace items like the lawn tractor ground drive belt, 1/2 x 82-in 532140294 or the molded ignition key 532140403. You can also search by model number on Sears PartsDirect.

Last updated: February 2026