Craftsman 917273522 lawn tractor Parts

For Craftsman lawn tractor model 917273522, the owner's manual lists a Briggs engine: Briggs model number 407577-0283-E1. This tractor is also identified in the manual as a 21.0 HP, 42-inch mower with electric start and an automatic transmission (see the owner's manual).

Engine details for model 917273522

From the parts and manual information for this specific Craftsman riding mower:

• Engine brand: Briggs (Briggs & Stratton)
• Engine model: 407577-0283-E1
• Starting system: electric start
• Drive type: automatic transmission
• Mower deck size: 42-inch

Quick reference

Item	What we use for 917273522
Engine make	Briggs (Briggs & Stratton)
Engine model number	407577-0283-E1
Deck size	42-inch
Start type	Electric start

Where to find the engine model number on the tractor

The most reliable way to confirm what you have on your machine is to match the engine ID tag:

• Look on the engine shroud or blower housing
• Check near the valve cover area
• Look around the muffler heat shield area (use caution, parts get hot)
• Compare the tag to the engine listing in the owner's manual

Why it matters

Using the correct engine model number helps us match the right maintenance and repair parts (filters, ignition parts, belts, and engine hardware) and prevents ordering parts that do not fit your Craftsman 917273522.

Last updated: February 2026

Craftsman lawn tractor engines are typically supplied by major small-engine manufacturers such as Briggs & Stratton, Kohler, or Kawasaki; the exact engine maker depends on the specific Craftsman model and engine family installed on it. For Craftsman model 917273522, the engine identification details are listed in the owner's manual.

How to identify the engine maker on model 917273522

Use the engine ID information (not the tractor model number) to confirm who built the engine.

• Locate the engine data label on the engine shroud, valve cover area, or blower housing
• Write down the engine brand and the model-type-code (common on Briggs & Stratton)
• Record the spec number (common on Kohler) or model and serial (common on Kawasaki)
• Match that information to the engine section in the owner's manual
• Use the engine ID when ordering tune-up and fuel system parts

Common engine suppliers you will see on Craftsman lawn tractors

These are the most common manufacturers used across Craftsman riding mowers and tractors.

Engine maker	What the ID tag often shows	Typical parts you match by engine ID
Briggs & Stratton	Model / Type / Code	Air filter, spark plug, carburetor parts
Kohler	Model / Spec / Serial	Fuel filter, starter, ignition parts
Kawasaki	Model / Serial	Air filter, oil filter, carburetor parts

Why it matters

The tractor model number (917273522) identifies the chassis and mower deck parts (belts, blades, mandrel components), but the engine ID is what ensures you get the correct ignition, fuel, and tune-up parts for your specific engine.

Last updated: February 2026

Craftsman model 917273522 was produced across multiple years, so the model number alone does not identify one single “model year.” The most accurate way to date your specific tractor is to use the serial number and date code information shown in the owner's manual.

How to find the build date on your tractor

On most Craftsman front-engine lawn tractors, the model and serial number label is under the seat or on the rear fender pan. Once you find it, record both numbers exactly.

• Look under the seat first; tilt the seat forward to view the label
• Check the rear fender pan (near the seat) if you do not see it under the seat
• Write down the full model number (917273522) and the full serial number
• Clean the label gently if it is dirty; avoid scraping off the print
• Use the serial number format guidance in your manual to interpret the date information

What the manual tells us about this model

Your documentation identifies this unit as a Craftsman lawn tractor, 21.0 HP with a 42-inch mower deck, model 917.273522 (often written without the dot as 917273522). It also lists a Briggs engine model 407577-0283-E1 in the engine breakdown section, which helps confirm you are matching the correct tractor when looking up service parts and specs in the manual.

Quick ID checklist

Item to match	Where to confirm	Why it helps
Model number 917273522	Product label	Confirms the correct parts diagrams
42-inch mower deck	Deck housing and manual	Helps match blade and deck parts
21.0 HP rating	Manual cover/spec section	Confirms the correct configuration
Engine model 407577-0283-E1	Engine tag	Helps date and service the engine

Why it matters

Craftsman used the 917 model family for many years, and parts, wiring, and deck configurations can change by production run. Using the serial number date information prevents ordering the wrong blade, belt, ignition key, or electrical part.

Last updated: February 2026

Craftsman is a brand owned by Stanley Black & Decker; the actual manufacturer of a Craftsman riding mower can vary by model and production run. For the Craftsman lawn tractor model 917273522, use the product identification details in the owner's manual to match the correct parts and service information.

What you can rely on for your 917273522

We focus on what keeps repairs accurate: the model number, the parts diagrams, and the manual specs.

• Use model 917273522 when searching parts and diagrams
• Match parts by deck size and blade style (mulching vs high-lift)
• Confirm fit by comparing the part listing details to your tractor’s configuration
• Use the manual’s maintenance and safety sections to guide service intervals

Common “who made it” clues (without guessing)

Many Craftsman riding mowers were built by large outdoor power equipment manufacturers over the years, and sourcing can change. Instead of relying on brand history, we recommend checking these identifiers on your tractor:

Where to look	What it tells you	Why it helps
Model/serial tag (tractor frame)	Exact build identity	Ensures correct parts lookup
Engine label	Engine family and service parts	Helps with tune-up parts matching
Mower deck tag	Deck size and deck family	Prevents wrong blade/belt selection

Why it matters for parts and repairs

Two tractors sold under the Craftsman name can use different blades, belts, mandrel assemblies, or electrical parts. Using the 917273522 model-specific documentation and parts list prevents ordering the wrong component.

Examples of model-matched parts on this page

If you are servicing the cutting system, these are common wear items for this model’s deck family:

• Lawn tractor 42-in deck high-lift blade 532138971
• Husqvarna lawn tractor mulching blade, 21-in 532134149
• Husqvarna lawn tractor mandrel assembly 532130794

Last updated: February 2026