754-0371A 5/8"x74" Mower Deck Belt for MTD 754-0371 954-0371 954-0371A 954-0271A | Replacement for LT-14 LT-15 LT-16 LT-17 | 42" Deep Deck 600 Series Riding Lawn Tractors

What It Is

This is a replacement mower deck belt (5/8" wide, 74" length) designed for MTD 42-inch deep deck 600 Series riding tractors. It drives the blades from the engine pulley on LT-14, LT-15, LT-16, and LT-17 models.

Fitment & Compatibility

Before buying, confirm your deck is a 42" deep deck (600 Series) and your tractor is an MTD-built LT-14, LT-15, LT-16, or LT-17. This belt replaces OEM part numbers 754-0371, 954-0371, 954-0371A, and 954-0271A. It is an aftermarket replacement, not OEM MTD. Measure your old belt—must be exactly 5/8" wide and 74" long (not 73" or 75"). Check your deck’s belt routing diagram; some 42" decks use different belt lengths. Cross-reference with Cub Cadet, Troy-Bilt, or Yard-Man models using the same deck.

Key Things to Know

• Quality: Aftermarket belts can vary; this one has solid reviews but may not last as long as OEM MTD. Expect 2-3 seasons with normal use.
• Installation: Moderate difficulty. You’ll need to remove the deck or use a belt tensioner tool. Ensure the belt is seated in all pulley grooves and the tensioner arm moves freely.
• Common gotchas: The 74" length is critical—too short and it won’t fit; too long and it slips. Check for worn pulleys or a seized tensioner before installing, as these will quickly destroy a new belt.
• Routing: Always follow your deck’s specific routing diagram (usually under the deck or in the manual). Incorrect routing causes rapid wear or blade disengagement.

Should You Buy It

Buy this if you need a budget-friendly replacement for an MTD 42" deck belt and don’t mind slightly shorter lifespan than OEM. It’s a good choice for occasional residential mowing on LT-14 through LT-17 tractors. Skip it if you mow commercially or want maximum durability—stick with OEM MTD.