Craftsman 917271070 lawn tractor Parts

The Craftsman lawn tractor model 917271070 uses a 16 HP electric-start engine (as listed in the product documentation). For the correct engine maintenance specs (oil type, spark plug, and capacities), follow the owner's manual.

What we can confirm for model 917271070

• Engine rating shown in documentation: 16 HP
• Starting system: Electric start
• Mower deck size shown in documentation: 42 in.
• Transmission shown in documentation: 6-speed transaxle

Engine maintenance specs you will use most

These specs are the ones that typically matter for tune-ups and seasonal service.

• Fuel: Unleaded regular; 1.25 gallon capacity
• Oil type:
  • SAE 10W-30 (above 32°F)
  • SAE 5W-30 (below 32°F)
• Oil capacity:
  • 4.0 pints with filter
  • 3.5 pints without filter
• Spark plug: Champion RC12YC
• Spark plug gap: 0.040 in.

Quick spec table (handy for service)

Item	Spec for 917271070
Engine power	16 HP
Start type	Electric start
Deck size	42 in.
Transmission	6-speed transaxle
Fuel capacity	1.25 gallons

Why it matters

Using the correct oil viscosity and spark plug spec helps your Craftsman tractor start easier, run cooler, and reduce engine wear, especially during temperature swings and after storage.

Related parts and ordering

If you are servicing the cutting system while you tune up the engine, common wear items include blades and deck drive components. For example, you can match your deck setup to parts like the husqvarna lawn tractor mulching blade, 21-in 532134149. You can order replacement parts from the parts list for model 917271070, or search by model number on Sears PartsDirect.

Last updated: February 2026

Craftsman model 917271070 was produced during the early-to-mid 2000s; the exact build year for your specific tractor is identified by the manufacturing date code on the tractor’s product/serial label. For the most accurate identification steps and label locations, use the 917271070 owner's manual.

How to find the exact year on your tractor

We use the tractor’s serial/product label because the same model number can span multiple production runs.

• Park on a flat surface, set the parking brake, and remove the key.
• Look for the product/serial label (commonly under the seat, on the frame near the seat pan, or under the hood area).
• Write down the full model number and serial number exactly as shown.
• Check the date code format shown on the label; many Craftsman tractors use a numeric date code that includes the year.
• Compare what you find to the identification section in the 917271070 owner's manual.

Quick guide: what you can confirm vs. what varies

Item	What stays the same	What can vary by year/run
Model number	917271070	Decals, minor chassis revisions
Engine family	Often consistent within a run	Exact engine spec and sub-variant
Parts fit	Must match model and serial range	Deck, belt routing, steering parts

Why it matters

The build year and serial range help us match the correct diagrams and replacement parts (for example, steering and lift components) so you avoid ordering a part that looks right but mounts differently.

If you are ordering parts

Once you have the serial/date information, order by the parts list for model 917271070 on this page; for broader model searches and ordering tools, use Sears PartsDirect.

Last updated: February 2026

For a Craftsman riding lawn tractor like model 917271070, a full engine replacement typically costs $600 to $2,500 installed (engine plus labor). Most shops bill about 4 to 8 labor hours for a riding mower engine swap; total cost depends on engine type, mounting, and any extra parts needed.

What drives the total cost

• Engine price: New replacement engines commonly run $300 to $1,800+ depending on horsepower and brand.
• Labor time: Typical riding mower engine replacement is 4 to 8 hours.
• Extra parts: Belts, pulleys, wiring, fuel line, and hardware often get replaced during the job.
• Condition issues: Stripped bolts, damaged wiring, or a worn PTO/clutch can add time.
• Pickup and delivery: Some shops charge transport fees.

Typical cost breakdown (installed)

Cost item	Typical range	Notes
Engine (part)	$300 to $1,800+	Varies by horsepower and crankshaft specs
Labor	$300 to $900	Based on shop rate and 4 to 8 hours
Misc. parts and supplies	$25 to $200	Fuel filter, clamps, hardware, oil, etc.
Estimated total	$600 to $2,500	Most common real-world range

Before you replace the engine

We recommend ruling out common “no start” causes first because they are far cheaper than an engine:

• Verify the operator presence and interlock system works (seat switch, brake/clutch switch, PTO disengaged)
• Check for fresh fuel and no water in fuel
• Confirm the spark plug wire is tight and the plug is serviceable
• Inspect for loose or damaged wiring
• Check for a clogged muffler or restricted airflow

For the correct safety checks and starting interlock behavior on this tractor, use the owner's manual.

Why it matters

An engine replacement only pays off when the rest of the tractor (transaxle, deck, steering, electrical) is in solid shape. If you are also chasing drive issues, a major drivetrain part like the transaxle 794691 can change the repair decision.

If you decide to move forward, we list model-matched parts for 917271070 on the parts list for this model, and you can also search by model number on Sears PartsDirect.

Last updated: February 2026

For the Craftsman 42-inch front-engine lawn tractor on this page, the model number is 917271070 (often written with a dot as 917.271070 in the manual). You’ll use this model number to match the correct parts list, diagrams, and maintenance specs.

Where to find the model number on the tractor

We recommend confirming the tag on the tractor so you order the right Craftsman parts.

• Check under the seat on the frame
• Look near the rear fender area
• Check the frame rail by the engine compartment
• Match the tag to the format 917.271070 or 917271070

For the exact label location and identification details, use the 917271070 owner's manual.

Why the model number matters for parts fit

Craftsman “42-inch” describes the cutting deck size, not the full model identity. The model number controls which deck, belt routing, and transaxle parts fit.

Examples of model-matched parts shown for 917271070

What you’re replacing	Example part on this model page	What it affects
Deck blade	Husqvarna lawn tractor mulching blade, 21-in 532134149	Cut quality, mulching performance
Blade drive belt	Lawn tractor drive belt 532144200	Blade engagement, deck drive
Starter circuit	Solenoid 532146154	Cranking and starting

Quick ordering checklist

Use this checklist before you buy parts:

• Confirm the tractor tag reads 917271070
• Match the deck size (42-inch) and configuration
• Use the diagrams and part key numbers in the 917271070 owner's manual
• Order from the parts list for this model, or search by model number on Sears PartsDirect

Why it matters

Using the correct model number prevents wrong-part returns and helps ensure the belt length, mandrel style, and transaxle components match your exact Craftsman lawn tractor build.

Last updated: February 2026

Yes, replacing the engine on your Craftsman lawn tractor model 917271070 is worth it when the tractor’s deck, steering, and transmission are solid and you want to extend the machine’s life; it is usually not worth it when multiple major systems are worn or the total repair cost is close to a replacement tractor. Use the 917271070 owner's manual to confirm maintenance and safety steps before any major repair.

Quick decision checklist

• The mower deck is not rusted through and still cuts evenly after leveling and blade service.
• The transaxle drives smoothly (no slipping, grinding, or loss of motion when hot).
• Wiring and safety interlocks work correctly (seat switch, brake/clutch start interlock, PTO shutoff).
• You can do basic mechanical work safely (fuel, electrical, and belt routing).
• The engine failure is isolated (not paired with major deck or drivetrain damage).

Cost and value: a practical rule

A good rule is to replace the engine when the all-in cost (engine + any “while you’re in there” parts) stays well below the cost of a comparable tractor.

Scenario	Usually makes sense?	Why
Deck and drivetrain are strong; engine is seized or has low compression	Yes	You keep a known-good chassis and restore reliability
Deck is damaged; mandrels noisy; belts and pulleys worn	No	You risk chasing multiple failures after the swap
Starting system issues only (clicks, no crank)	Often no engine needed	A battery, cables, or solenoid is more common

Parts that commonly get replaced during engine-related repairs

Even when you replace an engine, we often see these items addressed to prevent repeat problems:

• Starter circuit component such as the solenoid 532146154 (common when you hear a click but no crank)
• Deck drive wear items like the lawn tractor drive belt 532144200
• Cutting system parts if vibration or poor cut is present (blade, mandrel, idler pulley)

Why it matters

An engine swap is a big job, but the tractor’s overall safety and performance still depend on the interlock system, blade condition, and proper torque and assembly practices. Our manual guidance for this model emphasizes safe servicing (no adjustments with the engine running) and correct blade installation and tightening.

If you decide to repair

• Follow the safety and maintenance procedures in the 917271070 owner's manual.
• Order model-correct replacement parts from the parts list for model 917271070, or search by model on Sears PartsDirect.

Last updated: February 2026