Craftsman 917273451 lawn tractor Parts

Craftsman lawn tractor engines are built by major engine manufacturers, most commonly Briggs & Stratton, Kohler, and Kawasaki, depending on the specific tractor and engine option. For Craftsman model 917273451, the exact engine maker is identified in the engine section of the 917273451 owner's manual.

We recommend confirming the maker using the engine’s ID label and the manual’s engine information.

• Locate the engine model and type numbers on the engine shroud or valve cover area
• Write down the full engine model, type, and code (not just horsepower)
• Match that information to the engine section and specifications in the manual
• Use the engine model to select the correct tune-up parts (spark plug, air filter, oil filter)
• If the tractor has a 42-inch deck, use the deck and blade information in the manual to match cutting parts

These are the most common suppliers used across many Craftsman riding mowers and lawn tractors:

The engine manufacturer determines the correct maintenance parts and service specs (oil type, spark plug, air filter, and fuel system parts). Using the engine model and code prevents ordering the wrong items even when two tractors share the same horsepower rating.

Last updated: February 2026

On Craftsman lawn tractors like model 917273451, the model number does not contain the build year. To find the year, we use the product serial number from the ID tag and decode it using the format shown in the 917273451 owner's manual.

We use the serial number from the tractor’s product identification label (not the engine label). Common places include:

• Under the seat pan or on the seat bracket area
• On the rear fender pan near the seat
• On the frame rail (left or right side)
• Near the rear hitch plate area
• Occasionally under the hood on the chassis

Many Craftsman-built riding mowers use a 6-digit date code within the serial number that reads:

• MM = month
• DD = day
• YY = year

If the date code is 072811, that decodes to July 28, 2011.

Serial tags can be dirty or partially worn. We recommend:

• Write down the full serial number exactly as printed
• Look for a 6-digit run that matches MMDDYY
• Ignore spaces or dashes; focus on the digits
• If multiple digit groups exist, use the one closest to the “Serial” label
• Confirm the tractor’s features match the manual for 917273451 (25.0 HP, 42-inch deck)

Knowing the correct year helps us match the right Craftsman parts and diagrams for your mower deck, drive system, and steering components, especially when parts changed mid-production.

Last updated: February 2026

For Craftsman lawn tractor model 917273451, we find the right parts by matching your exact model number to the parts diagrams, then confirming the part by name, location on the diagram, and your tractor’s deck/engine configuration shown in the 917273451 owner's manual. This prevents ordering the wrong blade, belt, or steering part.

• Confirm the model number is 917273451 (use the ID tag on the tractor frame, not the engine label).
• Use the parts diagrams to locate the system you’re repairing (mower deck, ground drive, steering, electrical).
• Compare the diagram callout to the part description (for example, blade vs. mandrel vs. pulley).
• Check quantity and orientation (left/right blades, hardware counts, belt routing).
• If you are replacing a wear item, inspect related components at the same time (spindles, idlers, springs, fasteners).

These are frequent replacements on a 42-inch deck riding mower; confirm fit by diagram and manual:

• Deck size: This tractor is listed as a 42-inch mower in the manual.
• Wear items: Blades and belts are normal wear parts; replacing them on schedule improves cut and drive performance.
• Fuel freshness: For running issues, use fuel within about 30 days of purchase (per the manual guidance).

Parts for riding mowers can look similar across Craftsman and Husqvarna-built platforms. Using the model-specific diagrams and the 917273451 owner's manual helps ensure the part matches your exact deck setup and avoids repeat repairs.

Last updated: February 2026

Today, Craftsman is a brand owned by Stanley Black & Decker; Craftsman lawn tractors are built by different manufacturers depending on the specific model and production run. For your Craftsman lawn tractor model 917273451, use the 917273451 owner's manual to confirm the exact product specs and service information tied to your tractor.

Even when the brand name stays the same, the actual manufacturer can vary by model series. The most reliable way to match parts is to use your model number (917273451) and the parts diagrams for that exact tractor.

• Match parts by model number 917273451, not by “Craftsman” alone
• Use the deck size and configuration listed in your manual (this model is a 42-inch mower deck)
• Replace wear items as a set when needed (for example, blades in pairs)
• Use the correct hardware when reinstalling blades and pulleys
• Keep a maintenance schedule so belts, blades, and spindles do not fail mid-season

These are typical wear items for a 42-inch Craftsman riding mower deck and drive system.

Knowing who owns the brand is less important than matching the correct parts to your exact tractor. Using the model-specific manual and diagrams prevents ordering the wrong blade, belt, or mandrel for your 42-inch deck.

Last updated: February 2026

For a Craftsman lawn tractor model 917273451, a complete engine replacement typically runs about $600 to $2,500 total (engine plus labor). Most shops bill 4 to 8 labor hours for a riding mower engine swap; exact cost depends on engine type, mounting, and whether related drive components need service.

• Engine type and horsepower (single-cylinder vs V-twin)
• New vs rebuilt vs used engine
• Labor time (rusted fasteners, wiring repairs, fuel system cleanup)
• Extra parts often replaced at the same time (belts, pulleys, battery)
• Deck and drivetrain condition (a worn deck belt or idler can add time)
• Pickup/delivery fees if the tractor is transported to a shop

We see many no-start or poor-running complaints caused by maintenance or safety interlocks, not a failed engine.

• Verify the operator presence and interlock system works as described in the 917273451 owner’s manual
• Confirm the clutch/brake pedal is fully depressed and the attachment clutch is disengaged before starting
• Check basics: fresh gasoline, clean air filter, correct oil level, good spark plug connection
• If the engine clicks but won’t turn, follow riding lawn mower engine clicks but doesnt turn over video
• If it spins but won’t start, use riding lawn mower engine spins but wont start video

An engine replacement can cost close to the value of an older lawn tractor. A quick diagnosis first helps you avoid paying for an engine when the real problem is a safety switch, fuel issue, or a worn belt.

Last updated: February 2026