Craftsman 917276380 tractor Parts

Replacing the engine on a Craftsman riding mower like model 917276380 typically costs $800 to $2,500 total (engine plus labor), depending on engine size, whether it’s a direct bolt-in replacement, and how much related work is needed (belts, wiring, fuel system, and tune-up items). See the 917276380 owner’s manual for maintenance steps that can help you avoid premature engine damage.

Typical cost breakdown

• Engine (new): $500 to $1,800
• Labor: $300 to $900 (often 3 to 8 hours)
• Shop supplies and incidentals: $25 to $150
• Optional add-ons: $50 to $300 (battery, fuel filter, spark plug, oil and filter)

Scenario	What you’re paying for	Typical total
DIY swap	Engine plus your time and tools	$500 to $1,800
Shop swap (straightforward)	Engine plus standard labor	$900 to $2,200
Shop swap (extra repairs)	Engine plus labor plus fixes to deck/drive/fuel/electrical	$1,500 to $2,500

What can raise the price

• Engine is not a direct match (mounting, crankshaft size, wiring, muffler routing)
• Fuel system needs cleanup after old fuel or debris (tank, lines, filter)
• Drive or deck components are worn and get replaced at the same time
• Electrical issues (weak battery, corroded terminals, charging problems)

Before you replace the engine: quick checks that can save money

We recommend ruling out common “no start” causes first:

• Confirm the battery is charged and cable connections are clean and tight
• Check for clogged fuel flow; the manual calls for replacing the in-line fuel filter once each season
• Inspect the air intake and cooling areas; blocked screens and dirty cooling fins can overheat and damage the engine
• Verify safety interlocks and operator presence controls are working

If the engine clicks or spins but won’t start, use riding lawn mower engine spins but wont start video to narrow it down.

Why it matters

An engine replacement can cost close to the value of an older tractor. If the rest of the mower is in good shape (transmission, deck, steering), a new engine can be a solid investment; if multiple systems are worn, targeted repairs and maintenance often make more sense.

Last updated: February 2026

Yes, it’s worth replacing the engine on your Craftsman 917276380 when the tractor is otherwise in good shape and the total repair cost stays below about half the price of a comparable replacement tractor. If the engine failure is paired with major deck, transmission, or electrical problems, replacement usually makes more sense.

Quick decision checklist

• Replace the engine if the frame, steering, and mower deck are solid and you plan to keep the tractor for several seasons.
• Replace the tractor if you also have transmission issues, severe deck damage, or multiple recurring no-start problems.
• Price it out first: engine cost plus labor, belts, blades, battery, and any “while we’re in there” parts.
• Confirm maintenance history: overheating and neglected tune-ups shorten engine life.
• Safety first: never adjust or repair anything with the engine running; follow the service cautions in the 917276380 owner’s manual.

Costs that commonly change the answer

Engine replacement can be a good investment, but only if you avoid stacking additional big-ticket repairs at the same time.

Item you may also need	Why it matters	Example part for this model
Deck spindle/mandrel components	Worn mandrels cause vibration and poor cut	Lawn tractor mandrel housing 587819701
Blade drive belt	A slipping belt can mimic low power	Lawn tractor blade drive belt 584451901
PTO engagement parts	Weak engagement can be mistaken for engine trouble	Switch.pto 582107601

Why it matters

A new engine won’t fix problems caused by poor airflow, dirty cooling fins, clogged muffler, or fuel restriction. Our manual maintenance guidance calls out keeping the air intake and cooling areas clean to prevent overheating damage, and replacing the in-line fuel filter seasonally when needed. Using the tractor with cooling shrouds removed or fins plugged can lead to repeat engine failure.

Before you commit: rule out “not really an engine” problems

These checks often restore performance for far less than an engine swap:

• Clean the grass screen and cooling fins; remove debris buildup
• Replace the spark plug at the start of the season or every 100 hours
• Replace the in-line fuel filter if fuel flow is restricted
• Drain old fuel and refill with fresh gasoline
• Inspect wiring connections and safety interlock operation

Last updated: February 2026

For the Craftsman 917276380 front-engine lawn tractor, use a quality 4-cycle engine oil that matches the temperature you mow in; the manual specifies using an SAE viscosity grade based on the oil viscosity chart, and the oil must meet API service classification SG-SL. See the 917276380 owner's manual for the exact viscosity recommendation for your climate.

Quick oil selection guide (by temperature)

Use the viscosity chart in the manual to match oil weight to outdoor temperatures before your next oil change.

• Choose a lighter viscosity for cold-weather starting
• Choose the recommended “summer weight” oil for warm-weather mowing
• Use only 4-cycle engine oil (not 2-cycle mix)
• Confirm the oil meets API SG, SH, SJ, SK, or SL
• Check oil level on level ground before each use

What you’re doing	What to use	What to avoid
Routine mowing in typical warm weather	The manual’s recommended SAE grade for warm temps	Automotive oil that does not meet API SG-SL
Cold-weather operation	The manual’s cold-weather SAE grade for easier starting	Oil that is too thick for the temperature
Topping off between changes	Same SAE grade already in the crankcase	Mixing random viscosities if you can avoid it

How to check and change oil on model 917276380

The manual’s process is straightforward and helps prevent overfilling.

• Check oil with the tractor on level ground
• Remove the oil fill cap/dipstick, wipe it clean, then reinsert without threading the cap
• Add oil only to the “FULL” mark; do not overfill
• Change oil every 50 hours of operation or at least once a year
• Drain oil warm for faster draining; use a suitable container

Why it matters

Using the correct SAE viscosity for your temperature range improves lubrication at startup, reduces wear under load, and helps your Craftsman engine run cooler and more consistently through the mowing season.

Last updated: February 2026

A Craftsman “6.75” walk-behind mower does not have one single universal model number; “6.75” is an engine power label used across many mowers. For your Craftsman riding tractor model 917276380, the correct model number is 917276380 (shown on the tractor’s owner documentation).

How to find the correct model number on your mower

Use the model number from the product ID label, not the engine label.

• Look for a sticker or metal tag on the mower deck, rear housing, or near the handle mounts (walk-behind mowers)
• Check under the seat or on the frame rail (riding mowers and lawn tractors)
• Write down the full model number exactly as shown (all digits)
• Use the model number to match diagrams, belts, blades, and safety parts
• If the label is worn, check your paperwork for the model number

What “6.75” means (and why it can be confusing)

“6.75” typically refers to an engine rating used on multiple Craftsman mower builds, so it is not specific enough to identify the mower for parts.

Marking you see	What it identifies	Best use
6.75 (engine label)	Engine family/power rating	Engine tune-up parts only (filter, plug)
917.xxxxxx (product label)	Craftsman mower model	Correct parts diagrams and fit

If you are actually asking about model 917276380

Model 917276380 is a Craftsman garden tractor (26.0 HP, 54-inch mower deck). For deck-related repairs, the parts list commonly references items like the mandrel housing and mandrel pulley; examples from this model’s parts include the lawn tractor mandrel housing 587819701.

Why it matters

Using the exact model number prevents wrong-part returns and saves time on repairs like blade drive belt routing, spindle (mandrel) service, and PTO engagement troubleshooting.

For model-specific identification and diagrams, use the 917276380 owner’s manual.

Last updated: February 2026

Craftsman riding mowers use gasoline-powered small engines, most commonly 4-stroke single-cylinder or V-twin designs with electric start. For Craftsman model 917276380, the exact engine make, displacement, and configuration are listed in the product specifications section of the 917276380 owner's manual.

What to look up for your exact engine (917276380)

Use the manual’s product specifications and engine identification pages to confirm these details:

• Engine manufacturer (commonly Briggs & Stratton, Kohler, Honda, or similar)
• Horsepower rating and displacement (cc)
• Cylinder configuration (single-cylinder or V-twin)
• Fuel type (gasoline) and oil type/viscosity
• Starting system (electric start) and battery requirements

How to identify the engine on the tractor

If you need to match tune-up parts or order engine components, use the engine ID plate:

• Look on the engine shroud, valve cover area, or near the starter for a model and type code
• Write down all numbers exactly as shown
• Match the engine code to the correct air filter, spark plug, and oil filter

Quick comparison: common Craftsman riding mower engine types

Engine type	Typical setup	Common use
4-stroke single-cylinder	Simpler design, fewer parts	Smaller decks, lighter mowing
4-stroke V-twin	Smoother running, more torque	Larger decks, heavier mowing

Why it matters

Engine type drives the correct maintenance parts and procedures. Using the right oil, filter, and spark plug specs helps prevent hard starting, poor power, and premature wear.

Last updated: February 2026