Craftsman 917270781 tractor Parts

For a Craftsman riding lawn tractor like model 917270781, a typical engine replacement (parts plus labor) runs about $800 to $2,500 total, depending on the engine type, whether you reuse pulleys and wiring, and local shop rates. Most shops book 4 to 8 labor hours for a riding mower engine swap.

What drives the price up or down

• Engine choice: OEM-style replacement vs. universal repower kit
• Labor time: rusted fasteners, seized pulleys, or wiring repairs add hours
• Extra parts: battery, fuel line, throttle/choke cables, muffler, belts
• Shop rate: commonly $90 to $160 per hour in many areas
• While-you’re-in-there maintenance: tune-up parts, deck service, blade replacement

Typical cost breakdown (what you’re paying for)

Item	Typical range	Notes
Replacement engine	$500 to $1,800	Biggest variable; depends on HP and crankshaft specs
Labor	$300 to $1,200	Often 4 to 8 hours
Misc. parts/supplies	$25 to $200	Fuel filter/line, clamps, hardware, oil
Total installed	$800 to $2,500	Most common real-world range

Before you replace the engine, confirm it’s really the problem

We recommend checking the basics first because many “bad engine” symptoms are actually starting or safety-interlock issues.

• Verify the seat switch and interlock system operation (the manual explains the start conditions) using the 917270781 owner’s manual
• If you hear clicking but no crank, check battery cables and starter circuit first
• If it cranks but will not start, check fuel quality, spark, and air filter
• If it loses drive, that can be a belt or transaxle issue, not the engine

Why it matters

An engine replacement can cost close to the value of an older tractor. A quick diagnosis using the manual’s troubleshooting and safety-interlock checks helps you avoid paying for an engine when the real fix is electrical, fuel-related, or a worn belt.

Last updated: February 2026

For Craftsman riding mower model 917270781, the owner’s manual specifies a 19.0 HP electric-start engine on a 42-inch mower tractor platform. For the exact engine manufacturer and model (such as Briggs & Stratton), match the engine ID label on your engine to the specifications in the 917270781 owner's manual.

How to identify the exact engine on your 917270781

We recommend using the engine’s ID tag because the same tractor model can be built with different engine variants over time.

• Turn the engine off, remove the key, and let the engine cool.
• Look for an engine label on the blower housing, valve cover, or near the starter.
• Record the engine model, type, and code (or spec number).
• Compare those numbers to the engine section in the manual and your parts diagrams.
• Use the engine numbers when ordering tune-up parts (spark plug, air filter, fuel filter).

Specs from the manual (helpful for confirming you have the right tractor)

These model-specific specs help confirm you are working with the correct Craftsman tractor family.

Spec item	Manual listing (917270781)
Horsepower	19.0 HP
Start type	Electric start
Fuel capacity	3.5 gallons (unleaded regular)
Spark plug	Champion RJ19LM (or J19LM), gap 0.030 in
Ground speed (forward / reverse)	0 to 5.5 mph / 0 to 2.4 mph

Why it matters

The engine brand and exact model determine the correct maintenance parts and settings (spark plug type, oil viscosity, valve clearance, and carburetor or ignition components). Using the engine ID prevents ordering the wrong parts even when the tractor model number matches.

Last updated: February 2026

Craftsman model 917270781 is a 19.0 HP, electric-start, 42-inch automatic lawn tractor; the owner’s manual excerpt for this model does not list a specific manufacture year. For the exact year, we use the tractor’s product identification label (model and serial) and match it to the identification guidance in the 917270781 owner's manual.

How to find the year on your tractor

Use these quick checks on the Craftsman 917270781:

• Look for the model and serial number label under the seat, on the frame near the rear fender, or in the engine compartment area.
• Write down the full serial number exactly as shown (letters and numbers).
• Check the label for a date code (some labels include a month and year).
• If the tractor has an engine model and type code, record that too; engine codes often help narrow the build timeframe.
• Compare what you find to the identification and specifications sections in the manual.

What information to collect (so we can date it accurately)

Having the right numbers matters more than guessing by appearance.

What to record	Where you’ll usually find it	Why it helps
Model number: 917270781	Product ID label	Confirms the exact tractor family
Serial number	Product ID label	Used to determine production run and year
Engine model/type/code	Engine shroud or valve cover label	Helps cross-check the timeframe
Deck size (42-inch)	Deck decal or manual	Confirms configuration

Why it matters

The build year affects parts lookups and fit, especially for wear items like belts, steering parts, and deck components. Using the serial number prevents ordering the wrong version of a part for your Craftsman 917270781.

Last updated: February 2026