Answer: This guide highlights five compatible 42-inch mower blade sets suited for common riding mowers and tractors, helping you pick the right high-lift or mulching blades. Best for homeowners with Cub Cadet, Craftsman, Husqvarna, Poulan Pro, or MT/MTD models needing easy replacement blades. The top picks balance compatibility, blade pattern, and value, so you can maintain a clean cut and efficient airflow. The summary table below compares key specs to aid quick decisions.
| Product | Deck Fit | Pattern | Type | Best For |
|---|---|---|---|---|
| (2Pack) 742-04308 Blade Set | 42″ | 6-point star (6-point patterns common for 42″ decks) | High-Lift | Cub Cadet XT1-LT42, XT2-LX42, Craftsman, Troy-Bilt, MT/LD decks |
| MaxPower 561713B 2-Blade Set | 42″ | Standard 21″ length blades | Replace OEM numbers | Poulan/Husqvarna/Craftsman 42″ decks |
| UDC Parts 942-04308 Set | 42″ | 6-point star | High-Lift / Mulching capable | Cub Cadet, Craftsman, Troy-Bilt, and similar 42″ decks |
| MaxPower 561532XB 2 Blade Set | 42″ | 21″ blades, dual pack | Commercial Mulching | MTD, Cub Cadet, Troy-Bilt 42″ mowers |
| Grasscool 134149 Mulching Blade Set | 42″ | 5-Star mounting pattern | Mulching | Craftsman 42″ decks (LT1000/LT2000) and similar pattern mowers |
Blade Set A — (2Pack) 742-04308 for 42″ Decks
Includes two high-lift blades designed to replace OEM 742-04308 and related numbers. Best for: owners with Cub Cadet XT1-LT42, XT2-LX42, Craftsman, and similar 42″ decks who want a straightforward, ready-to-install replacement. This set emphasizes compatibility and ease of replacement. Limitation: verify your center-hole pattern is 6-point star to ensure a proper fit.
Blade Set B — MaxPower 561713B 2-Blade
This two-blade set fits many 42″ Poulan, Husqvarna, and Craftsman mowers, replacing OEM numbers such as 138498 and 138971. Best for: users who need a widely compatible option and prefer standard blade length (21 inches). Choose this if your OEM numbers align with the listed replacements. Caution: confirm your mower’s OEM number before purchasing to avoid mismatch.
Blade Set C — UDC Parts 942-04308 2-Pack
Replaces a broad list including 942-04308 and 742-04312, designed for 42″ decks. Best for: Cub Cadet, Craftsman, and Troy-Bilt 42″ decks that require a 6-point star center hole. This set is a strong all-rounder for users seeking a durable, high-lift option. Limitation: ensure your deck’s star pattern is compatible with the 6-point center hole; decks with different patterns may not fit.
Blade Set D — MaxPower 561532XB Mulching Set
Two commercial mulching blades for 42″ decks from MT, Cub Cadet, and Troy-Bilt. Best for: riders who want efficient mulching and a robust build for regular mowing tasks. Choose this if you operate under high grass or need mulch performance. Caution: verify that your mower’s OEM numbers match the replacement options listed to ensure a proper fit.
Blade Set E — JXJKCZ 3 Pack 134149
Three blades that replace OEM numbers including 134149 and 138498/138971 families. Best for: Craftsman LT1000/LT2000 and Husqvarna Poulan Pro 42″ decks that use a 5-point star mounting pattern. This set is ideal for users who want better value with a three-pack. Caution: confirm mounting pattern; 5-point star is required for proper fit.
Buying Guide: Key Considerations
- Deck compatibility: Match the deck width (42″) and center-hole pattern (6-point star vs 5-point star) to ensure a proper fit.
- Blade type: High-lift blades for clean cuts on thick grass; mulching blades for finer clippings and nutrient return.
- OEM number mapping: Use the OEM replacement numbers listed by each product to verify compatibility with your mower model.
- Pattern clarity: If replacing with aftermarket blades, verify mounting pattern and blade length (21 inches is common for 42″ decks).
- Installation considerations: Two-blade vs three-blade configurations affect cutting balance and mowing performance.
Frequently Asked Questions
- What blade pattern should I look for on a 42″ deck? Look for 6-point or 5-point star center holes, depending on your mower model.
- Are mulching blades suitable for all 42″ decks? Mulching blades work best on decks designed with mulching in mind; verify compatibility with your model’s mounting pattern.
- Is a three-pack blade set better than a two-pack? A three-pack offers more value and longer replacement intervals, depending on your mowing frequency.
- How do I know if OEM numbers match my mower? Compare the OEM numbers listed by the product with the numbers on your current blade packaging or manual.
- Can I mix blade types? It’s generally best to use blades of the same type and length on both sides for balanced mowing.