HONDA BJR-5451 Steering Knuckles Bjr L/r 51210-HM5-670

( Manufacturer Part Number: BJR-5451 ), ( Part Type: Steering ), ( Machine Type: Atv ), ( Oe/oem Part Number: 51210-hm5-670 ), ( Color: Black )

Review HONDA Bjr#5451 L/r Steering Knuckles Oem #51210-hm5-670 fits FOURTRAX TRX300 4X4 1994

The **Honda BJR5451 1994 TRX300 FourTrax 4x4 L/R Steering Knuckles (Part #51210-HM5-670)** are essential, high-performance suspension components designed specifically for Honda s legendary TRX300 FourTrax, a rugged off-road machine known for its durability and off-road prowess. These knuckles are forged from premium steel, ensuring exceptional strength and resistance to the harsh stresses of heavy-duty trail use, including sharp impacts, deep ruts, and rough terrain. Each knuckle is meticulously engineered to support the front wheel assembly, providing precise articulation and stability while maintaining optimal alignment under extreme conditions. The **L/R (Left/Right) pair** ensures balanced handling, allowing for smooth steering response and reduced play in the suspension, which is critical for both on-road comfort and off-road maneuverability. Whether tackling steep climbs, rocky descents, or tight technical trails, these knuckles deliver reliable performance, minimizing wear on other suspension components like ball joints, control arms, and bearings. Built to Honda s exacting standards, they are a direct-fit replacement for the original equipment, making them an ideal upgrade for owners seeking enhanced durability or those restoring their TRX300 to factory specifications. With their robust construction and precision engineering, these steering knuckles are a must-have for any serious off-roader looking to extend the lifespan of their suspension system while maintaining the FourTrax s legendary capability.

### **Pros and Cons of Buying a 1994 Honda TRX300 FourTrax (BJR5451) with L/R Steering Knuckles (Part No. 51210-HM5-670)**

#### **Pros**

1. **Reliability and Durability** Honda s FourTrax 300 is known for its robust, air/oil-cooled single-cylinder engine, which is simple yet durable. Many units last well beyond 10,000 hours with proper maintenance.

2. **Off-Road Capability** The TRX300 is designed for rugged terrain, featuring a solid axle, 4WD system, and a low-range gearbox, making it suitable for trails, rocks, and light rock crawling.

3. **Availability of Parts** As a classic Honda ATV, parts (including the steering knuckles you mentioned) are still relatively accessible, though some may require sourcing from specialty dealers or online marketplaces.

4. **Modification Potential** The TRX300 has a strong aftermarket presence, allowing for upgrades like suspension modifications, engine swaps (e.g., to a 400cc or 500cc engine), and performance tuning.

5. **Lower Cost of Ownership** Fuel efficiency is decent for an ATV of its era, and basic maintenance (oil changes, chain adjustments) is straightforward and inexpensive.

6. **Classic Status** The TRX300 holds a cult following, and well-maintained examples can appreciate in value, especially if restored or kept in original condition.

7. **Steering Knuckles (51210-HM5-670) Compatibility** The L/R steering knuckles you listed are a common wear item on these models. Replacing them is a cost-effective way to restore proper steering function without a full rebuild.

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#### **Cons**

1. **Age and Wear** A 1994 model will likely have significant mileage (or hours) and may require maintenance beyond just the steering knuckles. Check for worn suspension, drivetrain issues, or frame rust.

2. **Rust and Corrosion** If the ATV has been stored improperly, rust can affect the frame, axle, and undercarriage, leading to structural weakness.

3. **Engine Limitations** The stock 292cc engine is underpowered by modern standards and lacks torque for heavy loads or steep climbs. Expect slow acceleration and limited towing capacity.

4. **Suspension and Tires** Original shocks and tires (if still on) will be worn out. Upgrading to modern suspension (e.g., Fox or Rock Shox) or high-quality off-road tires (e.g., Kenda or Maxxis) is recommended.

5. **Electrical Issues** Older ATVs often suffer from failing wiring, weak batteries, or unreliable starters. Test the electrical system thoroughly before purchasing.

6. **Resale Value** Unlike newer ATVs, the TRX300 s resale value is limited unless it s in pristine condition or heavily modified.

7. **Steering Knuckles Replacement Cost** While the knuckles themselves are affordable, labor costs for replacement (if not DIY) can add up, especially if other components (like ball joints or bearings) need attention.

8. **Noise and Vibration** The single-cylinder engine is loud and vibrates significantly, which can be uncomfortable for long rides.

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### **Conclusion**

The **1994 Honda TRX300 FourTrax** is a solid choice if you re looking for a **budget-friendly, off-road-capable ATV** with a strong following. Its **reliability, parts availability, and mod potential** make it attractive for enthusiasts, but its **age, power limitations, and potential rust issues** mean it requires careful inspection and maintenance.

The **steering knuckles (51210-HM5-670)** you re considering replacing are a **common and cost-effective upgrade**, but they re just one part of a larger maintenance checklist. If the rest of the ATV (engine, transmission, suspension, frame) is in decent shape, this could be a **great project bike** or a **fun daily driver for light trails**.

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### **Recommendation**

- You re comfortable with **basic mechanical work** and plan to invest time in maintenance.

- You want a **classic, no-frills ATV** for trail riding, not high-performance use.

- The price is **reasonable** (expect to pay $1,500 $3,500 depending on condition).

- You ve **inspected the frame for rust, tested the engine, and confirmed the 4WD system works**.

- You need a **reliable, low-maintenance** machine without major repairs.

- You expect **modern comfort or power** this is a **basic off-road ATV**.

- The seller won t provide a **full service history** or won t let you test-ride it.

**Final Verdict:** If you re a **Honda enthusiast or an off-road mechanic**, this could be a **great find** especially if you re replacing the knuckles as part of a larger restoration. If you re new to ATVs or need something more modern, consider a **used 2000s-era Honda or Kawasaki** for better reliability.

Details:

1994 Honda TRX300 Fourtrax 4X4 L/R Steering Knuckles OEM #51210-HM5-670 #51220-HM5-670 BJR#5451.

part #: bjr5451 prices

• $23.91-$52.95

specifications electricacompone:

• for models: Trx300, 4x4, Fourtrax
• for makes: Honda
• for years: 1994
• mpn: Bjr-5451
• part type: Steering
• machine type: Atv
• oe/oem part number: 51210-hm5-670
• color: Black

seller electricacompone:

• city: Kunkletown, Pennsylvania
• # reviews: 3054
• rating: 99.9%

payments electricacompone:

• wallet: Google-pay
• credit card: Diners-club
• other

shipping electricacompone:

• carrier: USPS
• cost: $0.00
• class: Standard
• transit: 3-7 Days
• type: Fixed
• service: USPS Ground Advantage

returns electricacompone:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

offer electricacompone:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: April 7, 2026
• availability: In Stock

general electricacompone:

• condition: Used
• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

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