KAWASAKI 13034-1107 Bearing Big End Nos

( Manufacturer Part Number: 13034-1107 ), ( Part Type: Bearing )

Review KAWASAKI New Oem Bearing Big End Qty Nos fits B4

The **Kawasaki 13034-1107 Bearing (B4 Big End, Nos)** is a precision-engineered, high-performance component designed specifically for Kawasaki outboard motors, ensuring optimal reliability and longevity in demanding marine environments. This bearing is a critical part of the crankshaft assembly, serving as the **big-end bearing** (often referred to as the "B4" bearing in Kawasaki s numbering system) and playing a pivotal role in reducing friction, absorbing radial loads, and maintaining smooth crankshaft rotation within the engine s connecting rod assembly. Crafted from **high-grade, heat-treated steel** with a **bushings-in-shell design**, this bearing is engineered to withstand the intense mechanical stresses of high-revving outboard engines while resisting wear, corrosion, and thermal expansion even under prolonged exposure to saltwater, humidity, and fluctuating temperatures.

The **Nos (Needle Roller) configuration** of this bearing distinguishes it from traditional ball or roller bearings, offering superior load distribution and reduced friction, which translates to improved fuel efficiency and extended engine life. The needle rollers are precision-ground to an exacting tolerance, allowing them to nest tightly within the bearing shell while accommodating high-speed operation with minimal vibration. The outer race of the bearing is **hardened and ground to Kawasaki s exacting specifications**, ensuring a perfect fit within the crankshaft s journal and connecting rod housing, while the inner shell is often lined with **low-friction, corrosion-resistant coatings** to further enhance durability in harsh marine conditions. This bearing is particularly critical for **high-performance outboards**, including models like the Kawasaki 90 HP, 115 HP, and 150 HP series, where reliability under heavy loads and sustained operation is paramount.

Installation of the **13034-1107 bearing** requires meticulous attention to detail, as it must be properly seated within the connecting rod s bearing cap and crankshaft journal, often necessitating the use of specialized tools for alignment and torque specification. Kawasaki engineers have designed this bearing to be **interchangeable with select OEM and aftermarket counterparts**, though it is strongly recommended to use genuine Kawasaki parts to ensure compatibility with the engine s lubrication system and cooling dynamics. Over time, this bearing contributes to the engine s overall efficiency by minimizing parasitic losses, reducing oil consumption, and preventing catastrophic failure due to bearing wear a common cause of costly outboard repairs. Whether used in recreational fishing boats, high-speed cruisers, or commercial applications, the **13034-1107 B4 Big End Nos bearing** exemplifies Kawasaki s commitment to performance, durability, and engineering excellence in marine propulsion systems.

### **Pros and Cons of buying a Kawasaki 13034-1107 Bearing (Big End, B4)**

1. **OEM Quality** This is an original equipment manufacturer (OEM) part from Kawasaki, meaning it meets the exact specifications and standards required for your engine. OEM parts are designed to fit perfectly, reducing the risk of compatibility issues.

2. **Reliability and Durability** Kawasaki parts are known for their robust construction and long-lasting performance. A high-quality big-end bearing like this one is less likely to fail prematurely, especially in high-performance or heavy-duty applications.

3. **Compatibility** The part number (13034-1107) is specific to certain Kawasaki engines, ensuring it fits correctly without modification. This reduces the risk of improper installation, which can lead to engine damage.

4. **Warranty Coverage** If purchased directly from Kawasaki or an authorized dealer, this part may come with a warranty, providing peace of mind against defects in materials or workmanship.

5. **Performance Consistency** Unlike aftermarket parts that may vary in quality, an OEM bearing ensures consistent performance, which is critical for maintaining engine efficiency and longevity.

6. **Easier Maintenance** Since it s a genuine part, replacing it is straightforward, and mechanics familiar with Kawasaki engines will be more confident working with it.

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1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives. This can be a significant drawback if you're working with a tight budget or replacing multiple components.

2. **Limited Availability** Depending on your location, finding this exact part may require ordering from a specialty supplier or Kawasaki dealership, which could involve shipping delays.

3. **Potential Overkill for Minor Repairs** If the bearing failure is due to a minor issue (e.g., oil contamination or a loose bolt), replacing just the bearing with an OEM part might be more expensive than necessary. In such cases, an aftermarket bearing of comparable quality could suffice.

4. **No Customization Options** Unlike some aftermarket bearings, OEM parts do not offer variations in materials (e.g., different coatings or alloys) that might be beneficial for specific tuning or extreme conditions.

5. **Longer Wait Times** If the part is out of stock, you may have to wait longer for delivery, which could delay engine repairs or maintenance.

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The Kawasaki 13034-1107 big-end bearing is an excellent choice if you prioritize reliability, compatibility, and long-term performance. Its OEM status ensures it will fit and function as intended, reducing the risk of engine damage or premature failure. However, the higher cost and potential availability issues may make it less ideal for budget-conscious buyers or those who only need a temporary fix.

For most serious riders or mechanics who value engine integrity, the investment in an OEM part is justified. If cost is a major concern, you could explore high-quality aftermarket alternatives (e.g., from brands like **Fel-Pro, Fel-Pro Racing, or NSK**) that offer similar performance at a lower price, provided they meet the same specifications.

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- You are performing a full engine rebuild or major overhaul.

- You want the absolute best fit and reliability for your engine.

- You have access to a warranty or are replacing a failed bearing in a critical application (e.g., racing, heavy-duty use).

- You prefer working with parts that are widely trusted by mechanics.

- You are on a tight budget and can verify the aftermarket bearing meets Kawasaki s specifications (e.g., same material, load rating, and dimensions).

- The failure is isolated (e.g., only the bearing is worn), and you don t need OEM-level assurance.

- You can find a reputable brand (e.g., **Fel-Pro, NSK, or INA**) with strong reviews for big-end bearings.

Ultimately, the best choice depends on your priorities whether you value peace of mind and longevity (OEM) or cost efficiency and performance (high-quality aftermarket). Always ensure the replacement part matches your engine s requirements before installation.

Details:

New OEM Kawasaki 13034-1107 Bearing B4 Big End Qty 1 NOS. Items are shipped using USPS, UPS, and FedEx. If the original package is included it may show signs of wear.

Bearing is new and in excellent condition, original packaging. All parts are in stock and ready to ship.

part #: 130341107 prices

• $38.99-$268.80

specifications bearingmotorcycleiz:

• for models: B4
• for makes: Kawasaki
• mpn: 13034-1107
• part type: Bearing

shipping bearingmotorcycleiz:

• carrier: USPS, UPS
• service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
• class: Standard, Expedited, One-day
• transit: 4-8 Days
• type: Calculated
• cost: $0.00

general bearingmotorcycleiz:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings
• condition: New

returns bearingmotorcycleiz:

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

offer bearingmotorcycleiz:

• sold: 0
• best offers: True
• started: March 23, 2026
• availability: In Stock
• quantity: 3
• options: Ship-to-home

seller bearingmotorcycleiz:

• rating: 99.9%
• city: Ashaway, Rhode Island
• # reviews: 130835

payments bearingmotorcycleiz:

• credit card: Mastercard
• wallet: Paypal
• other

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