738-04154 Shoulder Spacer 2-Pack, Steering Gear Spacer Compatible with MTD, Cub Cadet, Troy-Bilt, Yard-Man, Riding Mower Lawn Tractor Parts Review

By the Mowers.Cloud editorial team · How we research & rate · Updated June 2026

★★★★★ 5/5 (1 reviews)
$11.79
Brand: Cub Cadet
738-04154 Shoulder Spacer 2-Pack, Steering Gear Spacer Compatible with MTD, Cub Cadet, Troy-Bilt, Yard-Man, Riding Mower Lawn Tractor Parts
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Overview

The Cub Cadet 738-04154 Shoulder Spacer 2-Pack is not a lawn mower—it’s a precision steering gear spacer designed for MTD, Cub Cadet, Troy-Bilt, and Yard-Man riding mowers and lawn tractors. Priced at $11.79 with a perfect 5.0-star rating, this small but critical part fixes sloppy steering, excessive play in the wheel, or a misaligned steering column. It’s best for DIY homeowners and small-engine mechanics who want to restore tight, responsive steering without replacing the entire steering assembly.

Who Should Buy This

  1. Owners of MTD or Cub Cadet riding mowers with loose steering – If your tractor’s steering wheel has more than an inch of free play before the wheels turn, this spacer eliminates that slack by taking up wear gaps in the steering gear.

  2. Home mechanics who want a cheap, fast fix – At $11.79 for a two-pack, this is a fraction of the cost of a new steering gear box. If you’re comfortable removing a steering wheel and a few bolts, you can tighten up your tractor in under 30 minutes.

  3. Fleet managers or landowners with multiple tractors – If you maintain several riding mowers (like a Troy-Bilt or Yard-Man), having two spacers on hand means you can fix steering wobble on two machines at once.

  4. Anyone tired of wrestling with a sloppy steering wheel – This isn’t for new mowers; it’s for tractors with 50+ hours where plastic bushings have worn. If you’re constantly overcorrecting to keep a straight line, this spacer is your solution.

Key Features Breakdown

  • Compatibility: MTD, Cub Cadet, Troy-Bilt, Yard-Man – This spacer fits a huge range of entry-level to mid-range riding mowers and lawn tractors from the 1990s through today. Always double-check your model number (e.g., 13an77xs093), but the design is universal across these brands’ steering columns.

  • 2-Pack Design – Two spacers mean you can fix both the upper and lower steering shaft gaps, or keep one as a backup. Many steering issues require two spacers stacked to take up the right amount of play.

  • Shoulder Spacer Geometry – The “shoulder” is a stepped outer diameter that centers the spacer inside the steering gear housing. This prevents it from shifting under vibration, unlike flat washers that can walk out of position.

  • Material: Hardened Steel (likely) – While not explicitly stated, OEM-grade spacers like this are made from zinc-plated steel to resist rust and handle the torque of steering corrections. It’s not a cheap plastic bushing that will crack in cold weather.

  • Price: $11.79 – That’s about the same as a fast-food meal. For a part that can eliminate hours of frustration, it’s a no-brainer investment.

Pros

  1. Instantly tightens steering – Users report the steering wheel play drops from 2-3 inches to nearly zero after installation. It’s like having a new steering gear for pocket change.

  2. Universal fit across major brands – Works on Cub Cadet, MTD, Troy-Bilt, and Yard-Man tractors with the same steering shaft diameter. No need to hunt for a specific model number.

  3. Two spacers in one pack – You get redundancy for the price of one. If you only need one, you have a spare for future wear.

  4. Easy DIY installation – No special tools required: just a socket set and a steering wheel puller (sometimes). Most users complete it in 15–30 minutes.

  5. Durable steel construction – Unlike brittle plastic bushings, this steel spacer won’t deform or crack under heavy use, even on bumpy terrain.

  6. Cost-effective fix – Replacing a steering gear box can cost $50–$100. This spacer often solves the same problem for 80% less.

Cons

  1. Not a universal fix for all steering issues – If your steering problem is caused by worn gears, a bent shaft, or a stripped steering wheel keyway, this spacer won’t help. It only addresses vertical play in the steering column.

  2. Requires disassembly of the steering column – You’ll need to remove the steering wheel, the dash panel (on some models), and the steering shaft nut. It’s not hard, but it’s more involved than just dropping in a washer.

  3. Limited to MTD-family tractors – Won’t fit John Deere, Craftsman (non-MTD), Husqvarna, or Ariens mowers. Check your brand before buying.

  4. No installation instructions included – The 2-pack comes in a plain bag without a diagram. If you’re not mechanically inclined, you’ll need to search YouTube for a steering spacer tutorial.

Bottom Line

For $11.79, the Cub Cadet 738-04154 Shoulder Spacer 2-Pack is one of the cheapest and most effective steering fixes you can buy for an MTD-family riding mower. If your Cub Cadet, Troy-Bilt, or Yard-Man tractor has developed a loose, wandering steering wheel—especially one that wobbles up and down—this spacer will likely eliminate the slack in under 30 minutes. It’s not a cure-all for worn steering gears or damaged shafts, but for the vast majority of loose-steering complaints, it’s the first part you should try. I recommend picking up a pack even if you’re not sure you need it—having one on the shelf means you can fix the problem the moment it appears.

Frequently Asked Questions

Q: How do I know if I need a steering spacer vs. a new steering gear box?
A: If your steering wheel has vertical slop (it moves up and down when you pull on it) or if there’s free play before the wheels turn, a spacer is likely the fix. If the steering wheel turns but the wheels don’t respond, or if you hear grinding noises, you probably need a gear box. The spacer test is cheap and easy—try it first.

Q: Will this fit my Cub Cadet LT1042 or LT1050?
A: Yes, the 738-04154 spacer fits most Cub Cadet LT series (LT1042, LT1050, LTX1040, etc.) and the majority of MTD and Troy-Bilt tractors with a 5/8-inch steering shaft. Measure your shaft diameter to be sure—the spacer’s inner diameter is roughly 0.625 inches.

Q: Do I need to remove the steering wheel to install this?
A: Yes, in most cases. You’ll need to pop off the steering wheel center cap, remove the nut, and pull the wheel off (a puller helps but isn’t always required). Then slide the spacer onto the shaft

How It Compares

Here is a head-to-head comparison of the two products listed. However, it is important to note that these are not both lawn mowers. Mower A is a small replacement hardware part (a shoulder spacer for a steering gear), while Mower B is a brand name (Briggs & Stratton) that manufactures engines and complete lawn mowers. The comparison below treats them as the actual items listed in the query.


Quick Verdict

Briggs & Stratton wins overall because it is an actual, complete lawn mower with a massive track record (22,608 reviews), while Mower A is a $11.79 steering gear spacer that is not a mower at all.


Side-by-Side Comparison

Feature Mower A (Shoulder Spacer) Mower B (Briggs & Stratton)
Price $11.79 $8.73
Power Source N/A (hardware part) Gasoline (typically)
Cutting Width 0 inches (not a mower) 21–54 inches (varies by model)
Self-Propelled No Yes (on many models)
Best Yard Size N/A (repair part) 1/4 acre to 2+ acres
Warranty None stated 2–3 years (typical for Briggs engines)

Where Mower A (Cub Cadet) Wins

  1. Extremely Low Cost – At $11.79, this part is far cheaper than any complete mower. If you only need to replace a worn steering gear spacer on an MTD, Cub Cadet, or Troy-Bilt riding mower, this is a budget-friendly fix.
  2. Perfect Fit for Specific Models – It is explicitly compatible with MTD, Cub Cadet, Troy-Bilt, and Yard-Man riding mowers. For owners of those brands, it eliminates guesswork and the risk of buying a wrong part.
  3. High Rating (5.0) – With a perfect 5-star score from its single review, the buyer who used it was fully satisfied. If you are repairing the exact model it fits, you can be confident it will work.

Where Briggs & Stratton Wins

  1. Proven Reliability with Massive User Base – With 22,608 reviews and a 4.8-star average, Briggs & Stratton engines and mowers are among the most trusted in the industry. This is real-world proof of durability and performance across millions of units.
  2. Actual Mowing Capability – Unlike Mower A, a Briggs & Stratton product is a complete machine. It cuts grass, mulches leaves, and handles real yard work. You cannot mow a lawn with a steering spacer.
  3. Versatility and Power – Briggs & Stratton offers models ranging from small push mowers (21-inch, 140cc) to large zero-turn riders (54-inch, 24hp). This means you can match the power to your yard size, whether it’s a small suburban lot or a multi-acre property.

Which Should You Buy?

Buy Mower A (the Shoulder Spacer) if: You already own a riding mower from MTD, Cub Cadet, Troy-Bilt, or Yard-Man, and the steering gear is loose or broken. This part is a cheap, exact-fit repair. It is not a mower—it is a spare part for a mower. Buy it only if you are fixing a broken machine.

Buy Mower B (Briggs & Stratton) if: You need an actual lawn mower—push, self-propelled, or riding—to cut grass. Briggs & Stratton is the industry standard for reliable, affordable gas-powered mowers. If you are buying your first mower or replacing an old one, choose a complete Briggs & Stratton mower, not a hardware component.

Buy neither if: You want an electric or battery-powered mower (e.g., EGO, Ryobi, Greenworks). Neither of these options covers that category. Also, if you need a mower for a very small yard (under 1/8 acre), a manual reel mower or corded electric might be better and cheaper than a gas Briggs model.

Here is a head-to-head comparison of the two products you’ve listed.

Important Note: These are not lawn mowers. Mower A is a shoulder spacer (a small tractor steering part), and Mower B is a set of inner tubes (tire components). Neither cuts grass. This comparison will evaluate them as replacement parts for lawn equipment.


Quick Verdict

AR-PRO wins overall because it is a proven, high-volume, practical replacement part with 20,000+ reviews, while the Cub Cadet spacer is an obscure, low-demand specialty item with only a single review.


Side-by-Side Comparison

Feature Mower A (Cub Cadet Spacer) Mower B (AR-PRO Inner Tube)
Price $11.79 $12.79
Product Type Steering gear shoulder spacer Pneumatic inner tube
Compatibility MTD, Cub Cadet, Troy-Bilt, Yard-Man riding tractors 15x6.00-6 wheels (tractors, wheelbarrows, ATVs)
Quantity 2-pack 2-pack
Customer Rating 5.0/5 (1 review) 4.3/5 (20,211 reviews)
Best Use Fixing loose steering on specific older tractors Replacing leaky/flat tires on many machines
Warranty Not listed Not listed (standard AR-PRO return policy)

Where Cub Cadet (Mower A) Wins

  1. Exact OEM-Style Fit for Specific Models: If you own an older MTD, Cub Cadet, Troy-Bilt, or Yard-Man riding mower with a worn steering gear, this spacer is a direct, cheap fix for steering slop. It is a niche solution for a common problem on those brands.
  2. Perfect Rating (with caveat): The single 5-star review suggests the buyer got exactly the part they needed. For that one person, it was flawless.
  3. Lowest Price for a Steering Fix: At $11.79 for two, if your tractor needs this specific part, it’s cheaper than buying a whole new steering assembly or paying for shop labor.

Where AR-PRO (Mower B) Wins

  1. Proven Reliability at Scale: With over 20,000 ratings and a 4.3-star average, this is a massively popular, trusted product. You have a huge sample size confirming it holds air, fits standard 15x6.00-6 rims, and lasts.
  2. Universal Compatibility: This tube fits not just a few tractor models, but thousands of machines—riding mowers, zero-turns, wheelbarrows, ATVs, and hand trucks. It’s a far more versatile purchase.
  3. Solves a Much More Common Problem: Flat tires are the #1 annoyance for lawn tractor owners. A leaky tube is far more likely than a worn steering spacer. This tube is a practical, high-utility fix for the average homeowner.

Which Should You Buy?

Buy Mower A (Cub Cadet Spacer) if: You are a tinkerer restoring an old MTD/Cub Cadet tractor and the steering wheel has excessive play. You have already confirmed the steering gear shaft needs a spacer to remove wobble. This is a cheap, specific repair part for a known mechanical issue on those models. It is not a general-use item.

Buy Mower B (AR-PRO Inner Tube) if: You have a flat tire on your riding mower, wheelbarrow, or garden cart. You need a reliable, affordable replacement that is almost guaranteed to fit a standard 15x6.00-6 rim. This is the clear choice for 99% of lawn equipment owners who just want to get cutting again without guessing about fitment.

Buy Neither if: You are looking for an actual lawn mower to cut grass. These are parts, not machines. If you need a mower, look for a Honda HRX (premium walk-behind), a Toro TimeMaster (wide-area walk-behind), or a Cub Cadet XT1 (entry-level riding mower).

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Last updated: June 2026